Iowa Code § 427.1 — Exemptions

The following classes of property shall not be taxed: 1. F ederal and state property . a. The property of the United States and this state, including state university , university of science and technology , and school lands, except as otherwise provided in this subsection . The exemption herein provided shall not include any real property subject to taxation under any federal statute applicable thereto , but such exemption shall extend to and include all machinery and equipment owned exclusively by the United States or any corporate agency or instrumentality thereof without regard to the manner of the affixation of such machinery and equipment to the land or building upon or in which such property is located, until such time as the Congress of the United States shall expressly authorize the taxation of such machinery and equipment. b. P roperty of the state operated pursuant to section 904.302 , 904.705 , or 904.706 that is leased to an entity other than an entity which is exempt from property taxation under this section shall be subject to property taxation for the term of the lease. P roperty taxes levied against such leased property shall be paid from the revolving farm fund created in section 904.706 . The lessor shall file a copy of the lease with the county assessor of the county where the property is located. 2. Municipal and military property . The property of a county , township, city , school corporation, levee district, drainage district, district organized under chapter 357E , or the Iowa national guard, when devoted to public use and not held for pecuniary profit, except property of a municipally owned electric utility held under joint ownership and property of an electric power facility financed under chapter 28F or 476A that shall be subject to taxation under chapter 437A and facilities of a municipal utility that are used for the provision of local exchange services pursuant to chapter 476 , but only to the extent such facilities are used to provide such services. The exemption for property owned by a city or county also applies to property which is operated by a city or county as a library , art gallery or museum, conservatory , botanical garden or display , observatory or science museum, or as a location for holding athletic contests, sports or entertainment events, expositions, meetings or conventions, or leased from the city or county for any such purposes, or leased from the city or county by the Iowa national guard or by a federal agency for the benefit of the Iowa national guard when devoted for public use and not for pecuniary profit. F ood and beverages may be served at the events or locations without affecting the exemptions, provided the city has approved the serving of food and beverages on the property if the property is owned by the city or the county has approved the serving of food and beverages on the property if the property is owned by the county . The exemption for property owned by a city or county also applies to property which is located at an airport and leased to a fixed base operator providing aeronautical services to the public. 3. Public grounds and cemeteries. Public grounds, including all places for the burial of the dead; and crematoriums with the land, not exceeding one acre, on which they are built and appurtenant thereto , so long as no dividends or profits are derived therefrom. 4. F ire company buildings and grounds. The publicly owned buildings and grounds used exclusively for keeping fire engines and implements for extinguishing fires and for meetings of fire companies. 5. P roperty of associations of war veterans. a. The property of any organization composed wholly of veterans of any war , when such property is, except as otherwise provided in this subsection or subsection 14 , devoted entirely to its own use and not held for pecuniary profit. b. The operation of bingo games on property of such organization shall not adversely affect the exemption of that property under this subsection if all proceeds, in excess of expenses, are used for the legitimate purposes of the organization. c. The occasional or irregular lease or rental of all or a portion of the property of such organization shall not adversely affect the exemption of that property under this subsection if the proceeds from such lease or rental do not exceed two hundred fifty dollars per lease or rental, and the proceeds, in excess of expenses, are used for the legitimate purposes of the Fri Dec 12 20:22:05 2025 Iowa Code 2026, Section 427.1 (70, 2) organization. In addition, the occasional or irregular lease or rental shall be considered a use for the appropriate objects of the organization for purposes of subsection 14 . 6. P roperty of cemetery associations. a. Burial grounds, mausoleums, buildings, and equipment owned and operated by cemetery associations and used exclusively for the maintenance and care of the cemeteries devoted to interment of human bodies and human remains. The exemption granted by this subsection shall not apply to any property used for the practice of mortuary science. b. Agricultural land owned by a cemetery association and leased to another person for agricultural use if the revenues resulting from the lease are used by the cemetery association exclusively for the maintenance and care of cemeteries owned by the cemetery association and devoted to interment of human bodies and human remains. 7. Libraries and art galleries. All grounds and buildings used for public libraries, public art galleries, and libraries and art galleries owned and kept by private individuals, associations, or corporations, for public use and not for private profit. Claims for exemption for libraries and art galleries owned and kept by private individuals, associations, or corporations for public use and not for private profit must be filed with the local assessor by F ebruary 1 of the first year the exemption is requested. Once the exemption is granted, the exemption shall continue to be granted for subsequent assessment years without further filing of claims as long as the property continues to be used as a library or art gallery for public use and not for private profit. 8. P roperty of religious, literary , and charitable societies. a. All grounds and buildings used or under construction by literary , scientific, charitable, benevolent, agricultural, and religious institutions and societies solely for their appropriate objects, not exceeding three hundred twenty acres in extent and not leased or otherwise used or under construction with a view to pecuniary profit. However , an organization mentioned in this subsection whose primary objective is to preserve land in its natural state may own or lease land not exceeding three hundred twenty acres in each county for its appropriate objects. F or assessment years beginning on or after January 1, 2016, the exemption granted by this subsection shall also apply to grounds owned by a religious institution or society , not exceeding a total of fifty acres, if all monetary and in -kind profits of the religious institution or society resulting from use or lease of the grounds are used exclusively by the religious institution or society for the appropriate objects of the institution or society . b. All deeds or leases by which such property is held shall be filed for record before the property described in this subsection shall be omitted from the assessment. All such property shall be listed upon the tax rolls of the district or districts in which it is located and shall have ascribed to it an actual fair market value and an assessed or taxable value, as contemplated by section 441.21 , whether such property is subject to a levy or is exempted as provided in this subsection and such information shall be open to public inspection. 9. P roperty of educational institutions. Real estate owned by any educational institution of this state as a part of its endowment fund, to the extent of one hundred sixty acres in any civil township except any real property acquired after January 1, 1965, by any educational institution as a part of its endowment fund or upon which any income is derived or used, directly or indirectly , for full or partial payment for services rendered, shall be taxed beginning with the levies applied for taxes payable in the year 1967, at the same rate as all other property of the same class in the taxing district in which the real property is located. The property acquired prior to January 1, 1965, and held or owned as part of the endowment fund of an educational institution shall be subject to assessment and levy in the assessment year 1974 for taxes payable in 1975. All the property shall be listed on the assessment rolls in the district in which the property is located and an actual fair market value and an assessed or taxable value be ascribed to it, as contemplated by section 441.21 , irrespective of whether an exemption under this subsection may be or is affirmed, and the information shall be open to public inspection; it being the intent of this section that the property be valued whether or not it be subject to a levy . Every educational institution claiming an exemption under this subsection shall file with the assessor not later than F ebruary 1 of the year for which the exemption is requested, a statement upon forms to be prescribed by the director of revenue, describing and locating the property upon which exemption is claimed. Fri Dec 12 20:22:05 2025 Iowa Code 2026, Section 427.1 (70, 2) P roperty which is located on the campus grounds and used for student union purposes may serve food and beverages without affecting its exemption received pursuant to subsection 8 or this subsection . 10. Homes for soldiers. The buildings and grounds of homes owned and operated by organizations of soldiers, sailors, or marines of any of the wars of the United States when used for a home for disabled soldiers, sailors, or marines and not operated for pecuniary profit. 11. Agricultural produce. Growing agricultural and horticultural crops except commercial orchards and vineyards. 12. Government lands. Government lands entered and located, or lands purchased from this state, for the year in which the entry , location, or purchase is made. 13. Public airports. Any lands, the use of which, without charge by or compensation to the holder of the legal title to the lands, has been granted to and accepted by the state or any political subdivision thereof for airport or aircraft landing area purposes. 14. Statement of objects and uses filed. A society or organization claiming an exemption under subsection 5, 8, or 33 shall file with the assessor not later than F ebruary 1 a statement upon forms to be prescribed by the director of revenue, describing the nature of the property upon which the exemption is claimed and setting out in detail any uses and income from the property derived from the rentals, leases, or other uses of the property not solely for the appropriate objects of the society or organization. Upon the filing and allowance of the claim, the claim shall be allowed on the property for successive years without further filing as long as the property is used for the purposes specified in the original claim for exemption. When the property is sold or transferred, the county recorder shall provide notice of the transfer to the assessor . The notice shall describe the property transferred and the name of the person to whom title to the property is transferred. a. The assessor , in arriving at the valuation of any property of the society or organization, shall take into consideration any uses of the property not for the appropriate objects of the organization and shall assess in the same manner as other property , all or any portion of the property involved which is leased or rented and is used regularly for commercial purposes for a profit to a party or individual. If a portion of the property is used regularly for commercial purposes, an exemption shall not be allowed upon property so used and the exemption granted shall be in the proportion of the value of the property used solely for the appropriate objects of the organization, to the entire value of the property . However , the board of trustees or the board of directors of a hospital, as defined in section 135B.1 , may permit use of a portion of the hospital for commercial purposes, and the hospital is entitled to full exemption for that portion used for nonprofit health-related purposes, upon compliance with the filing requirements of this subsection . The property of a nursing facility , as defined in section 135C.1, subsection 15 , which is exempt from federal income tax under section 501(c)(3) of the Internal Revenue Code, and otherwise qualified, is entitled to the full exemption of the property regardless of the proportion of residents of the facility for whom the cost of care is privately paid or paid under Tit. XIX of the federal Social Security Act, upon compliance with the filing requirements of this subsection . b. An exemption shall not be granted upon property upon or in which persistent violations of the laws of the state are permitted. A claimant of an exemption shall, under oath, declare that no violations of law will be knowingly permitted or have been permitted on or after January 1 of the year in which a tax exemption is requested. Claims for exemption shall be verified under oath by the president or other responsible head of the organization. A society or organization which ceases to use the property for the purposes stated in the claim shall provide written notice to the assessor of the change in use. 15. Mandatory denial. No exemption shall be granted upon any property which is the location of federally licensed devices not lawfully permitted to operate under the laws of the state. 16. Revoking or modifying exemption. Any taxpayer or any taxing district may make application to the director of revenue for revocation or modification of any exemption, based upon alleged violations of this chapter . The director of revenue may also on the director ’s own motion set aside or modify any exemption which has been granted upon property for which exemption is claimed under this chapter . The director of revenue shall give notice by Fri Dec 12 20:22:05 2025 Iowa Code 2026, Section 427.1 (70, 2) mail to the taxpayer or taxing district applicant and to the societies or organizations claiming an exemption upon property , exemption of which is questioned before or by the director of revenue, and shall hold a hearing prior to issuing any order for revocation or modification. An order made by the director of revenue revoking or modifying an exemption shall be applicable to the tax year commencing with the tax year in which the application is made to the director or the tax year commencing with the tax year in which the director ’s own motion is filed. An order made by the director of revenue revoking or modifying an exemption is subject to judicial review in accordance with chapter 17A , the Iowa administrative procedure Act. Notwithstanding the terms of chapter 17A , petitions for judicial review may be filed in the district court having jurisdiction in the county in which the property is located, and must be filed within thirty days after any order revoking or modifying an exemption is made by the director of revenue. 17. Rural water sales. The real property of a nonprofit corporation engaged in the distribution and sale of water to rural areas when devoted to public use and not held for pecuniary profit. 18. Assessed value of exempt property . Each county and city assessor shall determine the assessment value that would be assigned to the property if it were taxable and value all tax exempt property within the assessor ’s jurisdiction. A summary report of tax exempt property shall be filed with the director of revenue and the local board of review on or before April 16 of each year on forms prescribed by the director of revenue. 19. P ollution control and recycling. P ollution -control or recycling property as defined in this subsection shall be exempt from taxation to the extent provided in this subsection , upon compliance with the provisions of this subsection . a. (1) This exemption shall apply to new installations of pollution -control or recycling property beginning on January 1 after the construction or installation of the property is completed. This exemption shall apply beginning on January 1, 1975, to existing pollution -control property if its construction or installation was completed after September 23, 1970, and this exemption shall apply beginning January 1, 1994, to recycling property . (2) This exemption shall be limited to the market value, as defined in section 441.21 , of the pollution -control or recycling property . If the pollution -control or recycling property is assessed with other property as a unit, this exemption shall be limited to the net market value added by the pollution -control or recycling property , determined as of the assessment date. b. (1) Application for this exemption shall be filed with the assessing authority not later than the first of F ebruary of the first year for which the exemption is requested, on forms provided by the department of revenue. The application shall describe and locate the specific pollution -control or recycling property to be exempted. (2) The application for a specific pollution -control or recycling property shall be accompanied by a certificate of the department of natural resources certifying that the primary use of the pollution -control property is to control or abate pollution of any air or water of this state or to enhance the quality of any air or water of this state or , if the property is recycling property , that the primary use of the property is for recycling. c. A taxpayer may seek judicial review of a determination of the department or , on appeal, of the environmental protection commission in accordance with the provisions of chapter 17A . d. The environmental protection commission of the department of natural resources shall adopt rules relating to certification under this subsection and information to be submitted for evaluating pollution -control or recycling property for which a certificate is requested. The department of revenue shall adopt any rules necessary to implement this subsection , including rules on identification and valuation of pollution -control or recycling property . All rules adopted shall be subject to the provisions of chapter 17A . e. (1) F or the purposes of this subsection , “pollution-control property ” means personal property or improvements to real property , or any portion thereof, used primarily to control or abate pollution of any air or water of this state or used primarily to enhance the quality of any air or water of this state and “recycling property ” means personal property or improvements to real property or any portion of the property , used primarily in the manufacturing process and resulting directly in the conversion of waste glass, waste plastic, wastepaper products, waste Fri Dec 12 20:22:05 2025 Iowa Code 2026, Section 427.1 (70, 2) paperboard, or waste wood products into new raw materials or products composed primarily of recycled material. In the event such property shall also serve other purposes or uses of productive benefit to the owner of the property , only such portion of the assessed valuation thereof as may reasonably be calculated to be necessary for and devoted to the control or abatement of pollution, to the enhancement of the quality of the air or water of this state, or for recycling shall be exempt from taxation under this subsection . (2) F or the purposes of this subsection , “pollution ” means air pollution as defined in section 455B.131 or water pollution as defined in section 455B.171 . “ W ater of the state” means the water of the state as defined in section 455B.171 . “Enhance the quality ” means to diminish the level of pollutants below the air or water quality standards established by the environmental protection commission of the department of natural resources. 20. Impoundment structures. a. The impoundment structure and any land underlying an impoundment located outside an incorporated city , which are not developed or used directly or indirectly for nonagricultural income-producing purposes and which are maintained in a condition satisfactory to the soil and water conservation district commissioners of the county in which the impoundment structure and the impoundment are located. A person owning land which qualifies for a property tax exemption under this subsection shall apply to the county assessor each year not later than F ebruary 1 for the exemption. The application shall be made on forms prescribed by the department of revenue. The first application shall be accompanied by a copy of the water storage permit approved by the director of the department of natural resources or the director ’s designee, and a copy of the plan for the construction of the impoundment structure and the impoundment. The construction plan shall be used to determine the total acre-feet of the impoundment and the amount of land which is eligible for the property tax exemption. The county assessor shall annually review each application for the property tax exemption under this subsection and submit it, with the recommendation of the soil and water conservation district commissioners, to the board of supervisors for approval or denial. An applicant for a property tax exemption under this subsection may appeal the decision of the board of supervisors to the district court. b. As used in this subsection , “impoundment” means a reservoir or pond which has a storage capacity of at least eighteen acre-feet of water or sediment at the time of construction; “storage capacity ” means the total area below the crest elevation of the principal spillway including the volume of any excavation in the area; and “impoundment structure” means a dam, earthfill, or other structure used to create an impoundment. 21. Low-rent housing. The property owned and operated or controlled by a nonprofit organization, as recognized by the internal revenue service, providing low-rent housing for persons who are elderly and persons with physical and mental disabilities. F or the purposes of this subsection, the controlling nonprofit entity may serve as a general partner or managing member of a limited liability company or limited liability partnership which owns the property . The exemption granted under the provisions of this subsection shall apply only until the final payment due date of the borrower ’s original low-rent housing development mortgage or until the borrower ’s original low-rent housing development mortgage is paid in full or expires, whichever is sooner , subject to the provisions of subsection 14 . However , if the borrower ’s original low-rent housing development mortgage is refinanced, the exemption shall apply only until the date that would have been the final payment due date under the terms of the borrower ’s original low-rent housing development mortgage or until the refinanced mortgage is paid in full or expires, whichever is sooner , subject to the provisions of subsection 14 . 21A . Dwelling unit property owned by community housing development organization. Dwelling unit property owned and managed by a community housing development organization, as recognized by the state of Iowa and the federal government pursuant to criteria for community housing development organization designation contained in the HOME program of the federal National Affordable Housing Act of 1990, if the organization is also a nonprofit organization exempt from federal income tax under section 501(c)(3) of the Internal Revenue Code and owns and manages more than one hundred fifty dwelling units that are located in a city with a population of more than one hundred Fri Dec 12 20:22:05 2025 Iowa Code 2026, Section 427.1 (70, 2) ten thousand. F or the 2007 and subsequent assessment years, an application for exemption must be filed with the assessing authority not later than F ebruary 1 of the assessment year for which the exemption is sought. Upon the filing and allowance of the claim, the claim shall be allowed on the property for successive years without further filing as long as the property continues to qualify for the exemption. 22. Natural conservation or wildlife areas. Recreational lakes, forest covers, rivers and streams, river and stream banks, and open prairies as designated by the board of supervisors of the county in which located. The board of supervisors shall annually designate the real property , not to exceed in the aggregate for the fiscal year beginning July 1, 1983, the greater of one percent of the acres assessed as agricultural land or three thousand acres in each county , for which this exemption shall apply . F or subsequent fiscal years, the limitation on the maximum acreage of real property that may be granted exemptions shall be the limitation for the previous fiscal year , unless the amount of acreage granted exemptions for the previous fiscal year equaled the limitation for that year , then the limitation for the subsequent fiscal year is the limitation for the previous fiscal year plus an increase, not to exceed three hundred acres, of ten percent of that limitation. The procedures of this subsection shall be followed for each assessment year to procure an exemption for the fiscal year beginning in the assessment year . The exemption shall be only for the fiscal year for which it is granted. A parcel of property may be granted subsequent exemptions. The exemption shall only be granted for parcels of property of two acres or more. a. Application for this exemption shall be filed with the commissioners of the soil and water conservation district in which the property is located, not later than F ebruary 1 of the assessment year , on forms provided by the department of revenue. The application shall describe and locate the property to be exempted and have attached to it an aerial photograph of that property on which is outlined the boundaries of the property to be exempted. In the case of an open prairie that has been restored or reestablished, the property shall be inspected and certified as provided by the county board of supervisors as having adequate ground cover consisting of native species and that all primary and secondary noxious weeds present are being controlled to prevent the spread of seeds by either wind or water . In the case of an open prairie which is or includes a gully area susceptible to severe erosion, an approved erosion control plan must accompany the application. b. Upon receipt of the application, the commissioners shall certify whether the property is eligible to receive the exemption. The commissioners shall not withhold certification of the eligibility of property because of the existence upon the property of an abandoned building or structure which is not used for economic gain. If the commissioners certify that the property is eligible, the application shall be forwarded to the board of supervisors by May 1 of that assessment year with the certification of the eligible acreage. An application must be accompanied by an affidavit signed by the applicant that if an exemption is granted, the property will not be used for economic gain during the assessment year in which the exemption is granted. c. In the case of an open prairie that has been restored or reestablished and that does not receive the certification as provided by the county board of supervisors as it relates to the ground cover , the applicant shall be notified of the availability of resource enhancement and protection fund cost-share moneys and soil and conservation technological assistance for reestablishing native vegetation. d. Before the board of supervisors may designate real property for the exemption, it shall establish priorities for the types of real property for which an exemption may be granted and the amount of acreage. These priorities may be the same as or different than those for previous years. The board of supervisors shall get the approval of the governing body of the city before an exemption may be granted to real property located within the corporate limits of that city . A public hearing shall be held with notice given as provided in section 73A .2 at which the proposed priority list shall be presented. However , no public hearing is required if the proposed priorities are the same as those for the previous year . After the public hearing, the board of supervisors shall adopt by resolution the proposed priority list or another priority list. P roperty upon which are located abandoned buildings or structures shall have the lowest priority on the list adopted, except where the board of supervisors determines that a structure Fri Dec 12 20:22:05 2025 Iowa Code 2026, Section 427.1 (70, 2) has historic significance. The board of supervisors shall also provide for a procedure where the amount of acres for which exemptions are sought exceeds the amount the priority list provides for that type or in the aggregate for all types. e. After receipt of an application with its accompanying certification and affidavit and the establishment of the priority list, the board of supervisors may grant a tax exemption under this subsection using the established priority list as a mandate. Real property designated for the tax exemption shall be designated by May 15 of the assessment year in which begins the fiscal year for which the exemption is granted. Notification shall be sent to the county auditor and the applicant. f . The board of supervisors does not have to grant tax exemptions under this subsection , grant tax exemptions in the aggregate of the maximum acreage which may be granted exemptions, or grant a tax exemption for the total acreage for which the applicant requested the exemption. Only real property in parcels of two acres or more which is recreational lakes, forest cover , river and stream, river and stream banks, or open prairie and which is utilized for the purposes of providing soil erosion control or wildlife habitat or both, and which is subject to property tax for the fiscal year for which the tax exemption is requested, is eligible for the exemption under this subsection . However , in addition to the above, in order for a gully area which is susceptible to severe erosion to be eligible, there must be an erosion control plan for it approved by the commissioners of the soil and water conservation district in which it is located. In the case of an open prairie that has been restored or reestablished, the property shall be inspected and certified as provided by the county board of supervisors as having adequate ground cover consisting of native species and that all primary and secondary noxious weeds present are being controlled to prevent the spread of seeds by either wind or water . In the case of an exemption for river and stream or river and stream banks, the exemption shall not be granted unless there is included in the exemption land located at least thirty -three feet from the ordinary high water mark of the river and stream or river and stream banks. P roperty shall not be denied an exemption because of the existence upon the property of an abandoned building or structure which is not used for economic gain. If the real property is located within a city , the approval of the governing body must be obtained before the real property is eligible for an exemption. F or purposes of this subsection : (1) “Open prairies” includes hillsides and gully areas which have a permanent grass cover but does not include native prairies meeting the criteria of the natural resource commission. (2) “F orest cover” means land which is predominantly wooded. (3) “Recreational lake” means a body of water , which is not a river or stream, owned solely by a nonprofit organization and primarily used for boating, fishing, swimming, and other recreational purposes. (4) “Used for economic gain ” includes, but is not limited to , using property for the storage of equipment, machinery , or crops. g. Notwithstanding other requirements under this subsection , the owner of any property lying between a river or stream and a dike which is required to be set back three hundred feet or less from the river or stream shall automatically be granted an exemption for that property upon submission of an application accompanied by an affidavit signed by the applicant that if the exemption is granted the property will not be used for economic gain during the period of exemption. The exemption shall continue from year to year for as long as the property qualifies and is not used for economic gain, without need for filing additional applications or affidavits. P roperty exempted pursuant to this paragraph is in addition to the maximum acreage applicable to other exemptions under this subsection . 23. Native prairie and wetland. Land designated as native prairie or land designated as a protected wetland by the department of natural resources pursuant to section 456B.12 . a. Application for the exemption shall be made on forms provided by the department of revenue. Land designated as a protected wetland shall be assessed at a value equal to the average value of the land where the wetland is located and which is owned by the person granted the exemption. The application forms shall be filed with the assessing authority not later than the first of F ebruary of the year for which the exemption is requested. The application must be accompanied by an affidavit signed by the applicant that if the Fri Dec 12 20:22:05 2025 Iowa Code 2026, Section 427.1 (70, 2) exemption is granted, the property will not be used for economic gain during the assessment year in which the exemption is granted. If the property is used for economic gain during the assessment year in which the exemption is granted, the property shall lose its tax exemption and shall be taxed at the rate levied by the county for the fiscal year beginning in that assessment year . The first annual application shall be accompanied by a certificate from the department of natural resources stating that the land is native prairie or protected wetland. The department of natural resources shall issue a certificate for the native prairie exemption if the department finds that the land has never been cultivated, is unimproved, is primarily a mixture of warm season grasses interspersed with flowering plants, and meets the other criteria established by the natural resource commission for native prairie. The department of natural resources shall issue a certificate for the wetland exemption if the department finds the land is a protected wetland, as defined under section 456B.1 , or if the wetland was previously drained and cropped but has been restored under a nonpermanent restoration agreement with the department or other county , state, or federal agency or private conservation group. A taxpayer may seek judicial review of a decision of the department according to chapter 17A . The natural resource commission shall adopt rules to implement this subsection . b. The assessing authority each year may submit to the department a claim for reimbursement of tax revenue lost from the exemption. Upon receipt of the claim, the department shall reimburse the assessing authority an amount equal to the lost tax revenue based on the value of the protected wetland as assessed by the authority , unless the department reimburses the authority based upon a departmental assessment of the protected wetland. The authority may contest the department’s assessment as provided in chapter 17A . The department is not required to honor a claim submitted more than sixty days after the authority has assessed land where the protected wetland is located and which is owned by the person granted the exemption. 24. Land certified as a wildlife habitat. a. The owner of agricultural land may designate not more than two acres of the land for use as a wildlife habitat. After inspection, if the land meets the standards established by the natural resource commission for a wildlife habitat under section 483A .3 , and, in the case of a wildlife habitat that has been restored or reestablished, is inspected and certified as provided by the county board of supervisors as having adequate ground cover consisting of native species and that all primary and secondary noxious weeds present are being controlled to prevent the spread of seeds by either wind or water , the department of natural resources shall certify the designated land as a wildlife habitat and shall send a copy of the certification to the appropriate assessor not later than F ebruary 1 of the assessment year for which the exemption is requested. The department of natural resources may subsequently withdraw certification of the designated land if it fails to meet the established standards for a wildlife habitat and the ground cover requirement and the assessor shall be given written notice of the decertification. b. In the case where the property is a restored or reestablished wildlife habitat and does not receive the certification as provided by the county board of supervisors as it relates to the ground cover , the owner shall be notified of the availability of resource enhancement and protection fund cost-share moneys and soil and conservation technological assistance for reestablishing native vegetation. 25. Reserved. 26. Public television station. All grounds and buildings used or under construction for a public television station and not leased or otherwise used or under construction for pecuniary profit. 27. Speculative shell buildings of certain organizations. a. New construction of shell buildings by community development organizations, not-for -profit cooperative associations under chapter 499 , or for -profit entities for speculative purposes as provided in this subsection . b. The exemption shall be for one of the following: (1) The value added by new construction of a shell building or addition to an existing Fri Dec 12 20:22:05 2025 Iowa Code 2026, Section 427.1 (70, 2) building or structure by a community development organization, not-for -profit cooperative association under chapter 499 , or for -profit entity . (2) The value of an existing building being reconstructed or renovated, and the value of the land on which the building is located, if the reconstruction or renovation constitutes complete replacement or refitting of the existing building or structure, by a community development organization, not-for -profit cooperative association under chapter 499 , or for -profit entity . c. The exemption or partial exemption shall be allowed only pursuant to ordinance of a city council or board of supervisors, which ordinance shall specify if the exemption will be available for community development organizations, not-for -profit cooperative associations under chapter 499 , or for -profit entities. If the exemption is for a project described in paragraph “b” , subparagraph (1), the exemption shall be effective for the assessment year in which the building is first assessed for property taxation or the assessment year in which the addition to an existing building first adds value. If the exemption is for a project described in paragraph “b” , subparagraph (2), the exemption shall be effective for the assessment year following the assessment year in which the project commences. An exemption allowed under this subsection shall be allowed for all subsequent years until the property is leased or sold or for a specific time period stated in the ordinance or until the exemption is terminated by ordinance of the city council or board of supervisors which approved the exemption. Eligibility for an exemption as a speculative shell building shall be determined as of January 1 of the assessment year . However , an exemption shall not be granted a speculative shell building of a not-for -profit cooperative association under chapter 499 or a for -profit entity if the building is used by the cooperative association or for -profit entity , or a subsidiary or majority owners thereof for other than as a speculative shell building. If the shell building or any portion of the shell building is leased or sold, the portion of the shell building which is leased or sold, and a proportionate share of the land on which it is located if applicable, shall not be entitled to an exemption under this subsection for subsequent years. Upon the sale of the shell building, the shell building shall be considered new construction for purposes of section 427B.1 if used for purposes set forth in section 427B.1 . d. (1) If the speculative shell building project is a speculative shell building project described in paragraph “b” , subparagraph (1), an application shall be filed pursuant to section 427B.4 for each such project for which an exemption is claimed. (2) If the speculative shell building project is a speculative shell building project described in paragraph “b” , subparagraph (2), an application shall be filed by the owner of the property with the local assessor by F ebruary 1 of the assessment year in which the project commences. Applications for exemption shall be made on forms prescribed by the director of revenue and shall contain information pertaining to the nature of the improvement, its cost, and other information deemed necessary by the director of revenue. The city council or the board of supervisors, by ordinance, shall give its approval of a tax exemption for the project if the project is in conformance with the zoning plans for the city or county . The approval shall also be subject to the hearing requirements of section 427B.1 . Approval under this subparagraph (2) entitles the owner to exemption from taxation beginning in the assessment year following the assessment year in which the project commences. However , if the tax exemption for the building and land is not approved, the person may submit an amended proposal to the city council or board of supervisors to approve or reject. e. F or purposes of this subsection the following definitions apply: (1) (a) “Community development organization ” means an organization, which meets the membership requirements of subparagraph division (b), formed within a city or county or multicommunity group for one or more of the following purposes: (i) T o promote, stimulate, develop, and advance the business prosperity and economic welfare of the community , area, or region and its citizens. (ii) T o encourage and assist the location of new business and industry . (iii) T o rehabilitate and assist existing business and industry . (iv) T o stimulate and assist in the expansion of business activity . (b) F or purposes of this definition, a community development organization must have at least fifteen members with representation from the following: Fri Dec 12 20:22:05 2025 Iowa Code 2026, Section 427.1 (70, 2) (i) A representative from government at the level or levels corresponding to the community development organization ’s area of operation. (ii) A representative from a private sector lending institution. (iii) A representative of a community organization in the area. (iv) A representative of business in the area. (v) A representative of private citizens in the community , area, or region. (2) “New construction ” means new buildings or structures and includes new buildings or structures which are constructed as additions to existing buildings or structures. “New construction ” also includes reconstruction or renovation of an existing building or structure which constitutes complete replacement of an existing building or structure or refitting of an existing building or structure, if the reconstruction or renovation of the existing building or structure is required due to economic obsolescence, if the reconstruction or renovation is necessary to implement recognized industry standards for the manufacturing or processing of products, and the reconstruction or renovation is required in order to competitively manufacture or process products or for community development organizations, not-for -profit cooperative associations under chapter 499 , or for -profit entities to market a building or structure as a speculative shell building, which determination must receive prior approval from the city council of the city or county board of supervisors of the county . (3) “Speculative shell building” means a building or structure owned and constructed or reconstructed by a community development organization, a not-for -profit cooperative association under chapter 499 , or a for -profit entity without a tenant or buyer for the purpose of attracting an employer or user which will complete the building to the employer ’s or user ’s specification for manufacturing, processing, or warehousing the employer ’s or user ’s product line. 28. Joint water utilities. The property of a joint water utility established under chapter 389 , when devoted to public use and not held for pecuniary profit. 29. Methane gas conversion. Methane gas conversion property shall be exempt from taxation. a. F or purposes of this subsection , “methane gas conversion property ” means personal property , real property , and improvements to real property , and machinery , equipment, and computers assessed as real property pursuant to section 427A .1, subsection 1 , paragraphs “e” and “j” , used in an operation to decompose waste and convert the waste to gas, to collect methane gas or other gases produced as a by -product of waste decomposition and to convert the gas to energy , or to collect waste in order to decompose the waste to produce methane gas or other gases and to convert the gas to energy . b. If the property used to convert the gas to energy also burns another fuel, the exemption shall apply to that portion of the value of such property which equals the ratio that its use of methane gas bears to total fuel consumed. c. Application for this exemption shall be filed with the assessing authority not later than F ebruary 1 of each year for which the exemption is requested on forms provided by the department of revenue. The application shall describe and locate the specific methane gas conversion property to be exempted. If the property consuming methane gas also consumes another fuel, the first year application shall contain a statement to that effect and shall identify the other fuel and estimate the ratio that the methane gas consumed bears to the total fuel consumed. Subsequent year applications shall identify the actual ratio for the previous year which ratio shall be used to calculate the exemption for that assessment year . d. W ith respect to methane gas conversion property other than that used in an operation connected with, or in conjunction with, a publicly owned sanitary landfill, the exemption pursuant to this subsection shall be limited to property originally placed in operation on or after January 1, 2008, and on or before December 31, 2012, and shall be available for the ten -year period following the date the property was originally placed in operation. 30. Manufactured home community or mobile home park storm shelter . A structure constructed as a storm shelter at a manufactured home community or mobile home park as defined in section 435.1 . An application for this exemption shall be filed with the assessing authority not later than F ebruary 1 of the first year for which the exemption is requested, on forms provided by the department of revenue. The application shall describe and locate the Fri Dec 12 20:22:05 2025 Iowa Code 2026, Section 427.1 (70, 2) storm shelter to be exempted. If the storm shelter structure is used exclusively as a storm shelter , all of the structure’s assessed value shall be exempt from taxation. If the storm shelter structure is not used exclusively as a storm shelter , the storm shelter structure shall be assessed for taxation at fifty percent of its value as commercial property . 31. Barn preservation. The increase in assessed value added to a farm structure constructed prior to 1937 as a result of improvements made to the farm structure for purposes of preserving the integrity of the internal and external features of the structure as a barn is exempt from taxation. T o be eligible for the exemption, the structure must have been first placed in service as a barn prior to 1937. The exemption shall apply to the assessment year beginning after the completion of the improvements to preserve the structure as a barn. a. F or purposes of this subsection , “barn ” means an agricultural structure, in whatever shape or design, which is used for the storage of farm products or feed or for the housing of farm animals, poultry , or farm equipment. b. Application for this exemption shall be filed with the assessing authority not later than F ebruary 1 of the first year for which the exemption is requested, on forms provided by the department of revenue. The application shall describe and locate the specific structure for which the added value is requested to be exempt. c. Once the exemption is granted, the exemption shall continue to be granted for subsequent assessment years without further filing of applications as long as the structure continues to be used as a barn. The taxpayer shall notify the assessing authority when the structure ceases to be used as a barn. 32. One-room schoolhouse preservation. The increase in assessed value added to a one-room schoolhouse as a result of improvements made to the structure for purposes of preserving the integrity of the internal and external features of the structure as a one-room schoolhouse is exempt from taxation. The exemption shall apply to the assessment year beginning after the completion of the improvements to preserve the structure as a one-room schoolhouse. a. Application for this exemption shall be filed with the assessing authority not later than F ebruary 1 of the first year for which the exemption is requested, on forms provided by the department of revenue. The application shall describe and locate the specific one-room schoolhouse for which the added value is requested to be exempt. b. Once the exemption is granted, the exemption shall continue to be granted for subsequent assessment years without further filing of applications as long as the structure is not used for dwelling purposes and the structure is preserved as a one-room schoolhouse. The taxpayer shall notify the assessing authority when the structure ceases to be eligible. The exemption in this subsection applies even though the one-room schoolhouse is no longer used for instructional purposes. 33. Indian housing authority property . a. P roperty owned and operated by an Indian housing authority , as defined in 24 C.F .R . §950.102 , created under Indian law , if a cooperative agreement has been made with the local governing body agreeing to the exemption. The exemption in this subsection is subject to the provisions of subsection 14 . b. F or purposes of this subsection : (1) “Indian law ” means the code of an Indian tribe recognized as eligible for services provided to Indians by the United States secretary of the interior . (2) “Local governing body ” means the county board of supervisors if the property is located outside an incorporated city or the governing body of the city in which the property is located. 34. P ort authority property . The property of a port authority created pursuant to section 28J.2 , when devoted to public use and not held for pecuniary profit. 35. W eb search portal business property . a. P roperty , other than land and buildings and other improvements, that is utilized by a web search portal business as defined in and meeting the requirements of section 423.3, subsection 92 , including computers and equipment that are necessary for the maintenance and operation of a web search portal and other property whether directly or indirectly connected to the computers, including but not limited to cooling systems, cooling towers, Fri Dec 12 20:22:05 2025 Iowa Code 2026, Section 427.1 (70, 2) and other temperature control infrastructure; power infrastructure for transformation, distribution, or management of electricity , including but not limited to exterior dedicated business- owned substations, and power distribution systems which are not subject to assessment under chapter 437A ; racking systems, cabling, and trays; and backup power generation systems, battery systems, and related infrastructure all of which are necessary for the maintenance and operation of the web search portal site. b. This exemption applies beginning with the assessment year the investment in or construction of the facility utilizing the materials, equipment, and systems set forth in paragraph “a” are first assessed. F or purposes of claiming this exemption, the requirements may be met by aggregating the various Iowa investments and other requirements of the web search portal business’s affiliates as allowed under section 423.3, subsection 92 . This exemption applies to affiliates of the web search portal business. 36. W eb search property . a. P roperty , other than land and buildings and other improvements, that is utilized by a web search portal business as defined in and meeting the requirements of section 423.3, subsection 93 , including computers and equipment that are necessary for the maintenance and operation of a web search portal business and other property whether directly or indirectly connected to the computers, including but not limited to cooling systems, cooling towers, and other temperature control infrastructure; power infrastructure for transformation, distribution, or management of electricity , including but not limited to exterior dedicated business- owned substations, and power distribution systems which are not subject to assessment under chapter 437A ; racking systems, cabling, and trays; and backup power generation systems, battery systems, and related infrastructure all of which are necessary for the maintenance and operation of the web search portal business. b. This web search portal business exemption applies beginning with the assessment year the investment in or construction of the facility utilizing the materials, equipment, and systems set forth in paragraph “a” are first assessed. F or purposes of claiming this web search portal business exemption, the requirements may be met by aggregating the various Iowa investments and other requirements of the web search portal business’s affiliates as allowed under section 423.3, subsection 93 . This exemption applies to affiliates of the web search portal business. 37. Data center business property . a. P roperty , other than land and buildings and other improvements, that is utilized by a data center business as defined in and meeting the requirements of section 423.3, subsection 95 , including computers and equipment that are necessary for the maintenance and operation of a data center business and other property whether directly or indirectly connected to the computers, including but not limited to cooling systems, cooling towers, and other temperature control infrastructure; power infrastructure for transformation, distribution, or management of electricity , including but not limited to exterior dedicated business- owned substations, and power distribution systems which are not subject to assessment under chapter 437A ; racking systems, cabling, and trays; and backup power generation systems, battery systems, and related infrastructure all of which are necessary for the maintenance and operation of the data center business. b. This data center business exemption applies beginning with the assessment year the investment in or construction of the facility utilizing the materials, equipment, and systems set forth in paragraph “a” are first assessed, or applies beginning with the assessment year in which the date of the initial lease term of a data center by a data center business begins, as applicable. 38. Geothermal heating and cooling system. a. The value added by any new or refitted construction or installation of a geothermal heating or cooling system on or after July 1, 2012, on property classified as residential. The exemption shall be allowed for ten consecutive years. The exemption shall apply to any value added by the addition of mechanical, electrical, plumbing, ductwork, or other equipment, labor , and expenses included in or required for the construction or installation of the geothermal system, as well as the proportionate value of any well field associated with the system and attributable to the owner . Fri Dec 12 20:22:05 2025 Iowa Code 2026, Section 427.1 (70, 2) b. A person claiming an exemption under this subsection shall obtain the appropriate forms from the assessor . The forms shall be prescribed by the director of revenue. The claim shall be filed no later than F ebruary 1 of the first assessment year the exemption is requested and shall contain information pertaining to all costs and other information associated with construction and installation of the system. Once the exemption is allowed, the exemption shall continue to be allowed for ten consecutive years without further filing as long as the property continues to be classified as residential property . c. The director shall adopt rules to implement this subsection . 39. County fair property . F airgrounds, as defined in section 174.1 , that are owned by a county or a fair , as defined in section 174.1 . The use of such fairgrounds for purposes other than a fair event, as defined in section 174.1 , by the owner or by a lessee, including uses for pecuniary profit, shall not affect the exemption. 40. Broadband infrastructure. a. The owner of broadband infrastructure shall be entitled to an exemption from taxation to the extent provided in this subsection for assessment years beginning before January 1, 2027. Unless the context otherwise requires, the words and phrases used in this subsection shall have the same meaning as the words and phrases used in chapter 8, subchapter XI , including but not limited to the words and phrases defined in section 8.76 . b. The exemption shall apply to the installation of broadband infrastructure that facilitates broadband service at or above the download and upload speeds specified in the definition of targeted service area in section 8.76 commenced and completed on or after July 1, 2015, and before July 1, 2025, in a targeted service area, and used to deliver internet services to the public. A person claiming an exemption under this subsection shall certify to the local assessor prior to commencement of the installation that the installation of broadband infrastructure will facilitate broadband service at or above the download and upload speeds specified in the definition of targeted service area in section 8.76 within a targeted service area and shall specify the current number of homes, farms, schools, and businesses in the targeted service area to which broadband service was facilitated and the download and upload speeds available prior to the broadband infrastructure installation for which the exemption is claimed and the number of homes, farms, schools, and businesses in the targeted service area to which broadband service will be facilitated and the download and upload speeds that will be available as a result of installation of the broadband infrastructure for which the exemption is claimed. c. The tax exemption shall be a one hundred percent exemption from taxation for a period of ten years in an amount equal to the actual value added by installation of the broadband infrastructure. d. F or companies assessed by the department of revenue pursuant to chapter 433 ,* the exemption shall be limited to an amount equal to the actual value added by installation of the broadband infrastructure as of the assessment date as determined by the department and the exemption shall be applied to the unit value prior to any other exemption applicable to the unit value, as determined under that chapter . e. (1) An application for an exemption shall be filed by the owner of the property with the department of revenue by F ebruary 1 of the year in which the broadband infrastructure is first assessed for taxation, or the following two assessment years, and in each case the exemption is allowed for ten years. Applications from applicants whose property is subject to assessment by the department pursuant to chapter 433 * shall be reviewed by the department. All other applications shall be reviewed by the applicable county board of supervisors. The department shall forward those applications for exemption that are subject to review by the county board of supervisors to the county board of supervisors of each county in which the property is located. (2) In lieu of subparagraph (1), and notwithstanding any provision in this subsection to the contrary , an owner may at any time before completion of the project submit a proposal to the department requesting that the department or the board of supervisors, as applicable, allow the owner to file an application for exemption by F ebruary 1 of any other assessment year following completion of the project, which year shall be selected by the department or Fri Dec 12 20:22:05 2025 Iowa Code 2026, Section 427.1 (70, 2) the board, as applicable. If the department approves or if the board, by resolution, approves the proposal, the exemption is allowed for ten years. f . (1) The application shall be made on forms prescribed by the department. The application shall contain but not be limited to the following information: (a) The nature of the broadband infrastructure installation. (b) The percentage of the homes, farms, schools, and businesses in the targeted service area that will be provided access to broadband service. (c) The actual cost of installing the broadband infrastructure under the project, if available. The application shall contain supporting documents demonstrating the actual cost. (d) Certification from the department of management that the installation will facilitate broadband service in a targeted service area at or above the download and upload speeds specified in the definition of targeted service area in section 8.76 . (e) Certification of the date of commencement and actual or estimated date of completion. (f) A copy of any nonwireless broadband-related permit issued by a political subdivision. (g) If applying pursuant to paragraph “e” , subparagraph (2), the actual cost already incurred for installation of broadband infrastructure, if any , the estimated costs for project completion, and the estimated date of project completion. The application shall contain supporting documents demonstrating the actual cost. (2) The department of revenue and the board of supervisors shall not approve applications that are missing any of the information or documentation required in subparagraph (1). The department of revenue or the board of supervisors may consult with the department of management to access additional information needed to review an application. (3) The department or the board of supervisors, as applicable, shall, by March 1, notify an applicant of approval or denial of an application for an exemption under this subsection and shall also notify the applicant of the applicant’s right to an appeal. (4) The board of supervisors shall forward all approved applications and any necessary information regarding the applications to the appropriate local assessor by March 1 annually . After the tax exemption is granted, the department or the local assessor , as applicable, shall continue to grant the tax exemption for ten years, and applications for exemption for succeeding years shall not be required. (5) An applicant for a property tax exemption whose application was reviewed by the board of supervisors may appeal denial of the application to the property assessment appeal board within thirty days of the issuance of the denial. (6) An applicant for a property tax exemption whose application was reviewed by the department may appeal denial of the application to the director of revenue within thirty days of the issuance of the denial. (7) At any time after the exemption is granted and the broadband service is available in a targeted service area, the department of revenue or the board of supervisors, as applicable, under the direction of the department of management, may require the property owner receiving the exemption to substantiate that the owner continues to provide the service described in paragraph “b” . If the department of revenue or the board of supervisors determines that the property owner no longer provides the service described in paragraph “b” , the department of revenue or the board of supervisors shall revoke the exemption. An owner may appeal the decision to revoke the exemption in the same manner as provided in subparagraphs (5) and (6), as applicable. g. (1) If a company whose property in the county is not assessed by the department of revenue is approved to receive a property tax exemption pursuant to this subsection , the actual value added by installation of the broadband infrastructure shall be determined by the local assessor who shall certify the amount of exemption determined to the county auditor at the time of transmitting the assessment rolls. (2) Notwithstanding any other provision of law to the contrary , if a company in which all or a portion of the company ’s property in the county is assessed by the department pursuant to chapter 433 * and the company ’s property in the county is approved to receive a property tax exemption pursuant to this subsection , the department shall assess all the company ’s property in the county used for operating telegraph and telephone lines, broadband, or Fri Dec 12 20:22:05 2025 Iowa Code 2026, Section 427.1 (70, 2) cable systems for each assessment year the company receives the exemption, for purposes of determining the actual value added by installation of the broadband infrastructure. h. The director of revenue shall adopt rules pursuant to chapter 17A for the interpretation and proper administration of the exemption provided in this subsection . i. This subsection is repealed July 1, 2030. 41. Out- of -state business property used in disaster or emergency -related work. P roperty described in and meeting the requirements of section 29C.24, subsection 3 , paragraph “a” , subparagraph (6). 42. Sanitary sewage or storm water drainage property . P roperty owned or operated by a public utility , as defined in section 476.1, subsection 2 , that is directly and primarily used for the purposes specified under section 476.1, subsection 2 , paragraph “d” . 1.