Instructions for Form IL-1065-X — Amended Partnership Replacement Tax Return

Illinois Department of Revenue
IL-1065-X Instructions

Use for tax year ending on or after
December 31, 2025 and before
December 31, 2026.
Printed by the authority of the state of Illinois - electronic only - one copy.

# General Information

Who must file Form IL-1065-X?
You should file Form IL-1065-X, Amended Partnership Replacement Tax Return, if you are amending a previously filed, processable Form IL-1065, Partnership Replacement Tax Return, for a tax year ending on or after December 31, 2006. Your change can occur from a state or federal change that affects items used to compute your Illinois net income, net loss, or credits, such as

• an amendment of your federal income tax return,
• an adjustment made by the Internal Revenue Service (IRS), or
• any other recomputation or redetermination.

A separate amended return must be filed for each tax year you need to amend.
What if I need to change my return before the extended due date expires?
If you filed your original Form IL-1065 and a state or federal correction or change needs to be made before the extended due date expires (see the instructions of your original return), you should file Form IL-1065-X. Due to the automatic extension, any return filed after the original return and on or before the extended due date will be treated as the original return.
If you are filing Form IL-1065-X to change the election on your original return to treat all income other than compensation as business income, check the box in Step 1, Line F, and provide a written explanation indicating the change to your election in the "Explain the changes on this return" area of your Form IL-1065-X.
How long do I have to amend my return?
The amount of time you have to amend your return depends on whether your Form IL-1065-X is being filed to report a state or federal change.
Note: If an amended return claiming a credit or refund is filed within six months of the expiration of the statute of limitations, then the statute of limitations will automatically be extended an additional six months for issuing an assessment of additional tax due.
State change - If your change creates or increases the Illinois net loss for the year, you must file Form IL-1065-X showing the increase in order to carry the increased loss amount to another year.
If your change decreases the tax due to Illinois and you are entitled to a refund or credit carryforward, you must file Form IL-1065-X within

• three years after the due date of the return (including extensions),
• three years after the date your original return was filed, or
• one year after the date your Illinois tax was paid, whichever is latest.

If your change increases the tax due to Illinois, you should file Form IL-1065-X and pay the tax, penalty, and interest promptly.
Federal change - Do not file this amended return until you receive a federal finalization notification from the IRS stating that they have accepted your change, either by paying a refund, or by final assessment, agreement, or judgment. In order to process an amended return due to a federal change, the Illinois Department of Revenue (IDOR) requires proof of federal finalization. Proof of federal finalization includes one or more of the following:

• a copy of your federal audit report (signed and dated by a federal auditor);
• an IRS account transcript; or
• a federal refund check.

Note: Acknowledgement that the IRS received your amended return is not acceptable proof of federal finalization.
If your federal change decreases the tax due to Illinois and you are entitled to a refund or credit carryforward, you must file Form IL-1065-X within two years plus 120 days of federal finalization.
If your federal change increases the tax due to Illinois, you must file Form IL-1065-X and pay any additional tax within 120 days of IRS partial agreement or finalization. In order to avoid late payment penalties, you must pay any additional tax to IDOR and attach proof of the federal finalization date, showing the change was reported to Illinois within 120 days of IRS acceptance, or you may be assessed a late-payment penalty.
Note: If you fail to notify us of your change by filing Form IL-1065-X, we may issue a notice of deficiency at any time. Once you file your change, we may issue a notice of deficiency within two years.
What if I am amending my return due to multiple federal adjustments?
If you are amending your original Form IL-1065 due to multiple federal adjustments that were finalized on different dates, then you must complete separate amended Illinois returns for each federal finalization date. For example, if you receive a 2025 return adjustment from the IRS on July 10, 2026, then in August 2026, you amend your federal Form 1065 and receive federal finalization on October 22, 2026, then you must submit one Form IL-1065-X for the July 10, 2026, adjustments and a separate Form IL-1065-X for the October 22, 2026, adjustments.
Failure to file separate amended returns for each federal finalization date may result in the denial of the entire claim, a delay in processing, or the assessment of penalty and interest.
Note: Proof of federal finalization must be attached to your amended return before the return will be processed.

What if my amended return involves unitary filing?
If you are amending your original

• non-unitary Form IL-1065 to be included in an existing unitary group and are required to file Schedule UB, Combined Apportionment for Unitary Business Group, you must file an amended Form IL-1065-X, following the line by line instructions provided for Form IL-1065 and Illinois Schedule UB, for the tax year you are amending. In addition, ○ any combined return filed by the combined group on Form IL-1120 must also be amended to include your information, and ○ each member that filed a separate unitary return must file an amended return to include your information.
• unitary Form IL-1065 to report a state or federal change to your unitary income and are required to file Schedule UB, any combined return filed by the group or separate unitary return may also need to be amended.

What if my amended return involves an Illinois net loss deduction (NLD)?
If you have an Illinois NLD carryover from any loss year ending on or after December 31, 1986, it is subtracted from and limited to base income allocable to Illinois.
To determine your "Illinois net loss" start with your total unmodified base income and apply all addition and subtraction modifications, and all allocation and apportionment provisions.
If you are carrying an Illinois NLD, you must complete and attach Illinois Schedule NLD, Illinois Net Loss Deduction, and claim the deduction on Step 7, Line 48. See Specific Instructions for Step 7, Line 48.
Do not file Form IL-1065-X to report an Illinois NLD carryforward until after you have filed the loss year Form IL-1065, Form IL-1065-X, or Form IL-843 (for tax years ending prior to December 31, 2006) reporting the loss. When you file Form IL-1065-X, you must attach a completed Illinois Schedule NLD. Failure to attach the correct and completed schedule could result in partial or total denial of your claim.
If you need more information, visit our website at tax.illinois.gov and see the Schedule NLD instructions, or 86 Ill. Adm Code Sections 100.2050 and 100.2300 through 100.2330.
Who should sign the return?
Your Form IL-1065-X must be signed by a partner or any other officer duly authorized to sign the return. In the case of a bankruptcy, a receiver, trustee, or assignee must sign any return required to be filed on behalf of the partnership.
Note: If you are operating as a business organized under the Lloyd's plan of operation, an officer of that plan must sign Form IL-1065-X.
Any person paid to prepare the return (other than a regular, full-time employee of the taxpayer, such as a clerk, secretary, or bookkeeper) must provide a signature, date the return, enter the preparer tax identification number (PTIN) issued to them by the Internal Revenue Service, and provide their firm's name, federal employer identification number (FEIN), address, and phone number.
Can a reasonable facsimile be used?
In general, you must obtain and use forms prescribed by IDOR. Separate statements not on forms provided or approved by IDOR will not be accepted and you will be asked for appropriate documentation. Failure to comply with this requirement may result in failure to file penalties, a delay in the processing of your return, or a delay in the generation of any overpayment. Additionally, failure to submit appropriate documentation when requested may result in a referral to our Audit Bureau for compliance action.
Partnerships must complete Form IL-1065-X. Do not send a computer printout with line numbers and dollar amounts attached to a blank copy of the return. Computer generated printouts are not acceptable, even if they are in the same format as IDOR forms. Computer generated forms from an IDOR-approved software developer are acceptable.
What are the penalties and interest?
Penalties — You will owe

• a late-filing penalty if you do not file a processable return by the extended due date;
• a late-payment penalty if you do not pay the tax you owe by the original due date of the return;
• a late-payment penalty for underpayment of estimated tax if you were required to make estimated tax payments and failed to do so, or failed to pay the required amount by the payment due date;
• a bad check penalty if your remittance is not honored by your financial institution;
• a cost of collection fee if you do not pay the amount you owe within 30 days of the date printed on your bill.

Interest — The interest rate is the federal underpayment rate, which is set by the IRS under Internal Revenue Code (IRC) Section 6621.
Note: For more information about penalties and interest, see Publication 103, Penalties and Interest for Illinois Taxes, available at tax.illinois.gov.
Special Note: For amended tax returns filed on or after January 1, 2024, a late payment penalty will be assessed for any amended return not filed and the resulting liability not paid within 120 days of the federal change. See 35 ILCS 735/3-3(b-25) for more information.
What must I attach to my Form IL-1065-X?
This form must contain a complete explanation of the reasons for filing the claim or amendment. You must attach proof of the federal finalization date and any schedules, forms, breakdowns, statements, or other documentation required to support your claim. If Form IL-1065-X is submitted without the proper attachments, it may be partially or totally denied.

Examples of federal finalization include a copy of one or more of the following items:

• your audit report from the IRS
• your federal record of account verifying your ordinary business income If you are filing Form IL-1065-X because
• you filed an amended federal return and your tax due to Illinois decreases, you must attach proof of the federal finalization date, a copy of that federal return, plus any other related forms, schedules, or attachments, including a signed and dated copy of any federal report of income tax examination changes, if applicable.
• you filed an amended federal return and your tax due to Illinois increases, you must attach proof of the federal finalization date, including a signed and dated copy of any federal report of income tax examination changes, if applicable, showing the change was reported to Illinois within 120 days of IRS acceptance, or you may be assessed a late-payment penalty.
• of a change by the IRS, you must include all copies of the federal examining officer's reports, including preliminary, revised, corrected, and superseding reports, and a signed and dated copy of any federal report of income tax examination changes, if applicable.
• you copied information incorrectly from your federal Form 1065 onto your Form IL-1065, you must include a copy of your federal Form 1065.
• of a change in, or audit of, another state's tax return, you must include a copy of the other state's corrected return or the examining officer's reports.
• of a change in the information reported on your Schedule B, Partners' or Shareholders' Information, you must include a corrected Illinois Schedule B.
• of changes reported on a revised Schedule K-1-P, Partner's or Shareholder's Share of Income, Deductions, Credits, and Recapture, or K-1-T, Beneficiary's Share of Income and Deductions, (or any equivalent document) you received, you must include a copy of the revised Schedule(s) K-1-P or K-1-T (or equivalent document). Do not attach copies of Schedule(s) K-1-P you issued and which lists your name and FEIN in Step 1 of Schedule K-1-P.
• of changes, other than those described above, see Form IL-1065 Instructions and any schedules for the year you are changing to determine what attachments you must provide.

Should I round?
You must round the dollar amounts on Form IL-1065-X to whole-dollar amounts. To do this, you should drop any amount less than 50 cents and increase any amount of 50 cents or more to the next higher dollar.
Where should I file?
Mail your Form IL-1065-X to:

# ILLINOIS DEPARTMENT OF REVENUE

PO BOX 19016
SPRINGFIELD IL 62794-9016
What if I need additional assistance or forms?

• For assistance, forms, or schedules, visit our website at tax.illinois.gov or scan the QR code provided.
• Write us at:

# ILLINOIS DEPARTMENT OF REVENUE

PO BOX 19001
SPRINGFIELD IL 62794-9001

• Call 1 800 732-8866 or 217 782-3336 (TTY at 1 800 544-5304).
• Visit a taxpayer assistance office - 8:00 a.m. to 5:00 p.m. (Springfield office) and 8:30 a.m. to 5:00 p.m. (all other offices), Monday through Friday.

# Specific Instructions

For instructions regarding completion of Steps 1 through 10, refer to the Form IL-1065 Instructions and schedules for the year being amended.
Specific instructions for most of the lines are included. If a specific line is not referenced, follow the instructions on the form.
Enter the tax year you are amending in the space provided at the top of Form IL-1065-X.

# Step 1: Identify your partnership

A — Type or print your legal business name. If you have a name change from your original return, check the corresponding box.
B — Type or print your mailing address.
C — Check the box if you are filing this form only to report an increased net loss, you have no surcharge for sale of assets by gaming licensee, you have no pass-through withholding, investment partnership withholding, or PTE tax payments on your original or amended return, and no overpayment will result. Complete Steps 2 through 5, Step 6, if applicable, and Step 7, Line 47. Sign the return in Step 11 and leave the rest of the form blank.
D — Check the appropriate box if you are an investment partnership or publicly-traded partnership. Otherwise, leave this line blank.

E — Check the appropriate box for the reason you are filing this return. If you are amending due to a federal change, you must check the appropriate box for partial agreed or finalized, and include the date of IRS finalization, which might not be the date the federal amended return was filed. Please attach a dated copy of any federal examining officer's report. If you do not provide this date or the required attachments, you may be assessed penalties and interest.
F — If you are filing Form IL-1065-X before the extended due date, and wish to make the election to treat all income, other than compensation, as business income for this tax year, check this box. If you previously had nonbusiness income on Form IL-1065, Step 5, Lines 36 and 44, you must reduce these amounts to zero on this Form IL-1065-X. This election must be made by the extended due date of the original tax return. Once made, the election is irrevocable. If you are filing Form IL-1065-X after the extended due date of the original return and did not make the election on your most recent return filed before the extended due date, you cannot check this box.
G — Check this box if you elect to pay PTE tax in an amount equal to 4.95 percent (.0495) of the taxpayer's calculated net income for the tax year on Line 61.
H — Enter your entire federal employer identification number (FEIN).
I — If you are a member of a unitary business group and are included on Schedule UB, Combined Apportionment for Unitary Business Group, check the box. Enter the entire FEIN of the member who prepared the Illinois Schedule UB and attach the Schedule UB to this return.
J — Enter your North American Industry Classification System (NAICS) Code. If you are unsure of your code, you can research the information at www.census.gov/naics/ or www.irs.gov.
K — If you have completed federal Form 8886 or federal Schedule M-3, Part II, Line 10, to report a tax shelter and you did not attach a copy to the original return, check the appropriate box and attach a copy of the federal form or schedule to this return. If you are filing this return because of changes associated with federal Form 8886 or federal Schedule M-3, Part II, Line 10, provide a detailed explanation in the "Explain the changes on this return" area of your Form IL-1065-X.
L — You must check the box and attach Form IL-4562, Special Depreciation, if you are claiming special depreciation addition or subtraction modifications on Form IL-1065-X, even if the amounts are not changing from your original return.
M — You must check the box and attach Schedule M, Other Additions and Subtractions (for businesses), if you are claiming other addition or subtraction modifications on Form IL-1065-X, even if the amounts are not changing from your original return.
N — You must check the box and attach Schedule 80/20, Related-Party Expenses, if you are claiming related-party expenses modifications on your Form IL-1065-X, even if the amounts are not changing from your original return.
O — Check the box if you are claiming deductions or credits listed on Illinois Schedule 1299-A, Tax Subtractions and Credits (for partnerships and S corporations). You must check the box and attach Illinois Schedule 1299-A and any other required support listed on Schedule 1299-A to your tax return to support any deductions or credits you are claiming or passing to your shareholders.
P — If your business activity is protected under Public Law 86-272, check this box and complete Steps 1 through 7 of the Form IL-1065-X.
Q — Check this box if you are filing this amended return to report changes to your Illinois sales factor numerator due to the inclusion or exclusion of throwback sales.
Definition
Throwback sales are items shipped from an office, store, warehouse, factory, or other place of storage in Illinois to a purchaser in a state or foreign location where the taxpayer is not taxable.
For business income tax purposes, these sales should be included in both the sales everywhere and Illinois sales figures when determining apportionment. See 86 Ill. Adm. Code Section 100.3370 for more information.
R — Check this box if you are filing this amended return to report changes to your Illinois sales factor numerator due to the inclusion or exclusion of double throwback sales.
Definition
Double throwback sales are items where the seller is taxable in neither the state of origin nor the state of destination, and the seller's activities in Illinois regarding these items sold exceeds the protections of Public Law 86-272.
For business income tax purposes, prior to December 31, 2008, these sales should be included in both the sales everywhere and Illinois sales figures when determining apportionment. For taxable years ending on or after December 31, 2008, this provision no longer applies. See 86 Ill. Adm. Code Section 100.3380 for more information.
S — If you are attaching Subgroup Schedule to your Schedule UB, Combined Apportionment for Unitary Business Group check the box. See Subgroup Schedule Instructions and Schedule UB Instructions for more information.
T — Check this box if you are a 52/53 week filer. A 52/53 week filer is a fiscal filer with a tax year that varies from 52 to 53 weeks because their tax year ends on the same day of the week instead of the last day of the month.
U — Check this box if you are paying Pass-through Entity (PTE) Tax and you annualized your income on Form IL-2220. Attach Form IL-2220.
STOP Explain the changes on this return
The purpose of this area is to allow you to explain what specific changes you are making to your Illinois tax return. You should include all relevant information, including, but not limited to, changes made to

• specific addition and subtraction modifications,
• unitary membership or unitary status,
• the business income election,
• credit or credit recapture amounts,
• the Illinois net operating loss deduction, and
• the federal or other state return that caused changes to the Illinois return.

You must provide an explanation for each line item you change.
If your changes generate an overpayment which you elect to receive as a credit carryforward and you elect to apply that credit to a tax year other than the year described in the Line 70 instructions, you must follow the instructions found under "May I apply my credit to a different tax year?" If you fail to include the required information in your explanation, your election will be considered invalid and we will not apply your credit as you requested.
General Information for Steps 2 through 10
Column A — Enter the amounts from your most recently filed or adjusted return for the year that you are amending. These may be figures from your original Form IL-1065 or a previously amended or audited return.
Column B — Enter the correct amount for each line in Column B.
For each line item you change, you must provide an explanation in the "Explain the changes of this return" area of your Form IL-1065-X.
Note: If you are filing this form only to report an increase in your Illinois net loss, you have no surcharge for sale of assets by gaming licensee, you have no pass-through withholding, investment partnership withholding, or PTE tax payments on your original or amended return, and the change will not result in an overpayment, see the instructions for Step 7, Line 47.
Steps 2 and 3: Figure your ordinary income or loss and Figure your unmodified base income or loss
Note: If you are a member of a unitary group see "What if I am a member of a unitary group?" in the Form IL-1065 instructions.
Lines 1 through 13 — Refer to your Form IL-1065, Steps 2 and 3, Specific Instructions, for the year being amended.
Note: Do not apply your Illinois net loss deduction amount in this step. Net Loss Deductions are reported on Step 7, Line 48.
Steps 4 and 5: Figure your income or loss and Figure your base income or loss
Note: If you are a member of a unitary group see "What if I am a member of a unitary group?" in the Form IL-1065 instructions.
Lines 15 through 22 and Lines 24 through 33 — List each item and the amount on the line provided. You must identify all subtractions and attach all of the required supporting documentation.
Note: If you need to make a correction to Line 21 or Line 27, use the worksheet located in the Schedule B Instructions of the Form
IL-1065 Instructions to figure the correct amounts. You must attach a corrected Illinois Schedule B if there is a change in the information reported on your most recently filed Illinois Schedule B.
Line 35 — This is your base income or loss.
Column A — Enter the amounts from your most recently filed or adjusted return. Do not check a box on Lines A or B to indicate how your income was reported on your most recently filed or adjusted return. The check boxes on Lines A and B are used when reporting your amended base income or loss in column B.
Column B — Follow the instructions on the form and check the box on Line A or B that applies to the amount in Column B. You must check one of these boxes and follow the instructions for that line when completing Column B.
Check the box on Line A if

• all of your base income or loss is derived inside Illinois; and
• you do not have any income or loss to report on Lines 36, 37, 44, or 45.

If you check the box on Line A, do not complete Step 6, Column B. All of your amended base income or loss is allocable to Illinois. Skip Step 6, Column B, enter the amount from Step 7, Column B, Line 35 on Step 7, Column B, Line 47, and complete the remainder of the return.
Check the box on Line B if any of the following apply:

• your base income or loss is derived inside and outside Illinois;
• all of your base income or loss is derived outside Illinois; or
• you have income or loss to report on Lines 36, 37, 44, or 45.

If you check the box on Line B, you must complete all lines of Step 6, Column B. Submitting Form IL-1065-X with an incomplete Step 6, Column B, including Lines 40, 41, and 42 may result in a delay in processing your return, further correspondence, and you may be required to submit further information to support your filing. See the Specific Instructions for Step 6 for more information.
Note: Unitary filers who are required to file a Schedule UB - You must complete both Step 4 of the Schedule UB and Step 6, Column B of the Form IL-1065-X.

# Step 6: Figure your income allocable to Illinois

Complete Step 6 only if you originally completed this step, or if you need to make a change that affects your base income or loss allocable to Illinois. Refer to Form IL-1065, Step 6, Specific Instructions, for the year being amended.
You must check the box on Line B and complete Step 6 if any portion of Step 5, Column B, Line 35, base income or loss, is derived outside Illinois, or you have any income or loss to report on Column B, Lines 36, 37, 44, or 45.
If you do not complete all of Step 6, Column B, Lines 36 through 46, we may issue a notice and demand proposing 100 percent of income as being allocated to Illinois, or in the case of a loss return, a notice indicating none of your loss as being allocated to Illinois.

Lines 36 and 44 — If you elected to treat all of your income other than compensation as business income on your original tax return, you must follow that election by entering zero on Form IL-1065-X, Lines 36 and 44. If you are filing Form IL-1065-X before the extended due date and are making the election to treat all nonbusiness income as business income, Column B, Lines 36 and 44 should be reduced to zero.

# Step 7: Figure your net income

Line 47 — Follow the instructions on the form. If the amount in Column A reflects income and the corrected amount in Column B reflects a loss, you may be able to carry this loss to other years as an Illinois NLD. See the instructions for Illinois Schedule NLD for more information.
Note: If you are filing this form only to report an increase in your Illinois net loss, you have no surcharge for sale of assets by gaming licensee, you have no pass-through withholding, investment partnership withholding, or PTE tax payments on your original or amended return, and the change will not result in an overpayment, check the box in Step 1, Line C, complete Steps 2 through 5, Step 6, if applicable, and Step 7, Line 47. Complete the "Explain the changes on this return" area of your Form IL-1065-X stating what caused the increase in the Illinois net loss and sign the return in Step 11. Leave the rest of the form blank.
Line 48 — Enter your Illinois NLD from the Illinois Schedule NLD, Step 1, Line 7 total box. Attach Illinois Schedule NLD to your Form IL-1065-X.
If you are reporting losses from an entity or entities that you acquired during the filing period of this return or reporting previously unreported losses from prior acquisitions, check the box on Line 48 and,

• if Line 48 is zero, attach a detailed statement to your return that includes: ○ the FEIN of the entity from which you acquired the loss, ○ the reason (e.g., merger) you are allowed to use that entity's losses, and ○ the date you acquired the loss.
• if Line 48 is greater than zero, report the losses on page 2 of the Schedule NLD that you attach to your return.

Note: Each acquisition must be reported in detail separately. Do not report acquired losses that were previously reported.
Line 52 — The standard exemption is $1,000 multiplied by a fraction in which the numerator is your base income allocable to Illinois and the denominator is your total base income. This figure cannot be greater than "$1,000." The standard exemption is $0.00 if your unmodified base income amount on Step 3, Line 13 is greater than $250,000.
If you have a change in your tax year end, and the result is a tax period of less than 12 months, the standard exemption is prorated based on the number of days in the short tax year. However, if this is your first or final return, you are allowed to use the full-year standard exemption even if it is a short tax year.
Line 53 — If Line 49 is a loss, enter the amount from Line 49 on Line 53. Do not increase your loss by the exemption allowance on Line 52.

# Step 8: Figure your net replacement tax

Follow the instructions on the form. Be sure to attach any required schedules or forms.
Note: Skip this step if you are an investment partnership.
Line 55 — See Illinois Schedule 4255, Recapture of Investment Tax Credits, for more information. You must attach Illinois Schedule 4255 if you have an amount on this line.
Line 57 — See Form IL-477, Replacement Tax Investment Credits, for more information. You must attach Form IL-477 and any other required support listed on Form IL-477 if you have an amount on this line.

# Step 9: Figure the taxes and withholding you owe

Line 59a — For partnerships other than those that qualify as "investment partnerships" as defined in the IITA Section 1501(a)(11.5)(A-5). Complete all sections of Illinois Schedule B and enter the amount from Illinois Schedule B, Section A, Line 5 on this line. This is the amount of pass-through withholding payments you owe on behalf of your members. You must attach a corrected Illinois Schedule B if there is a change in the information reported on your most recently filed Illinois Schedule B. See "Definitions to help you complete your Form IL-1065" in the Form IL-1065 instructions for more information.
Note: Do not include on Line 59a any pass-through withholding payments reported to you on Schedule(s) K-1-P or K-1-T. Pass-through withholding payment amounts reported to you are included on Step 10, Line 63c.
Note: You must also issue revised Schedule(s) K-1-P to your partners if any amounts reported to them on the original Schedule(s) K-1-P you issued have changed. Mark the top of the revised Schedule(s) K-1-P you issue as "Revised."
Line 59b — Investment partnerships only. Complete this line if you are an investment partnership and are withholding for your nonresident partners. Complete all sections of Illinois Schedule B and enter the amount from Illinois Schedule B, Section A, Line 5 on this line. See Form IL-1065 instructions for more information.
Line 60 — Complete this line if you elected to pay PTE tax on your calculated base income. The total amount of PTE credit allocated to partners cannot exceed the PTE liability reported and actually paid by the partnership. Follow the instructions on the PTE Income Worksheet in the Form IL-1065 Instructions.
Note: You must also issue revised Schedule(s) K-1-P to your partners if any amounts reported to them on the original Schedule(s) K-1-P you issued have changed. Mark the top of the revised Schedule(s) K-1-P you issue as "Revised."
Line 61 — Enter the amount from Schedule B, Section A, Line 6. Do not include any PTE tax credit you received on Schedule(s) K-1-P or K-1-T on this line. If you complete Line 61, then Line 59a should be blank.

# Step 10: Figure your refund or balance due

Note: If you are filing this form only to report an increase in your Illinois net loss, you have no pass-through withholding payments to report on behalf of your members on your original or amended return, and an overpayment will not result, do not complete this step.
Line 63a — Enter the sum of any overpayment from your prior year tax returns that you requested to be applied to this year's tax return.
Take into account any correspondence we may have sent you that changed the amount of your credit carryforward from the previous year.
Line 63b — Enter the sum of the following, not including any penalty and interest previously paid:

• estimated payments or tax prepayments made during the tax year,
• extension payments,
• any tax payments you made with a previously filed Form IL-1065-X, and
• any other payments made prior to the date this amended return is filed (e.g., responding to a bill).

Line 63c — Enter the amount you wish to claim of Illinois pass-through withholding (including any eligible investment partnership withholding) payments reported to you by partnerships, S corporations, or trusts, on Schedule(s) K-1-P or K-1-T. If you received more than one Schedule K-1-P or K-1-T, add the amounts you wish to claim from all the schedules and enter the total here. Attach copies of the Schedules K-1-P and K-1-T you received from the pass-through entities to your Form IL-1065-X. See "Definitions to help you complete your Form IL-1065" in the Form IL-1065 instructions for more information.
Note: To claim Illinois pass-through withholding from Schedule(s) K-1-P or K-1-T, all pages of the Schedule(s) K-1-P or K-1-T you received from pass-through entities must be attached and the tax year ending field of the Schedule(s) K-1-P and K-1-T must be completed.
Special Note: Partners in an investment partnership may not be eligible to claim a Schedule K-1-P, Step 7, Line 55 amount reported to them by the investment partnership. See Schedule K-1-P(2) for information about when a partner may claim investment partnership withholding credit.
Note: Do not include any pass-through withholding payments you owe on behalf of your members on this line. Pass-through withholding payments you owe on behalf of your members are included on Step 9, Line 59a.
Line 63d — Enter the amount of any Illinois gambling and sports wagering winnings withholding shown on Form(s) W-2G. Attach
Forms W-2G.
Line 65 — Enter previously paid penalty and interest. Obtain this information from your MyTax Illinois account. Sign into mytax.illinois.gov to view or register your account.
Line 66 — Enter the total amount of any overpayment, credit carryforward, or refund (whether or not you received the overpayment) reported on your previously filed Form IL-1065 or Form IL-1065-X. Do not include any interest that you received.
Line 70 — Enter the amount of overpayment you elect to be credited forward. Check the box on this line if this is your final return and any remaining carryforward is being transferred to another entity. Attach a detailed statement to your return listing the FEIN of the entity receiving the credit carryforward, the date the credit was transferred, and the reason for the transfer.
See Form IL-1065, Step 10, Line 68 instructions for more information.
Your credit carryforward will not be applied if you do not file a processable return.
If your overpayment accrues interest and you elect to receive your

• entire overpayment as a credit carryforward, any interest due will be applied with your credit as an additional credit carryforward. We will calculate the amount of interest due and notify you. When you claim your credit carryforward in a future year you must include this interest amount in the amount claimed.
• overpayment as both a credit carryforward and a refund, we will apply the credit as you request and include any interest due with your refund.

Note: Your credit carryforward may be reduced by us due to corrections we make to your return, or to satisfy any unpaid tax, penalty, and interest due for this year or any other year. If we reduce your credit carryforward, it may result in a late-payment penalty in a subsequent year.
May I apply my credit to a different tax year?
Yes. If you wish to apply your credit to a tax year other than the one described above, you must indicate the tax year to which you wish to have the credit apply in the "Explain the changes on this return" area of your Form IL-1065-X.
If you do not follow these instructions, your election will be considered invalid and we will apply your credit as indicated under "To which tax year will my credit apply?" in the original return instructions.
If you submit a valid request, we will apply your credit as you requested and notify you. Once made, your election to change the tax year to which your credit will apply is irrevocable.
Note: You may only apply your credit to tax years occurring after the year of the return creating the overpayment. If you request to apply more credit than our records show you have available, we will apply the maximum amount available and notify you of the difference.
Line 71 — Follow the instructions on the form. We will calculate any interest that may be due you and include it in your refund check. Any refund may be reduced to satisfy any outstanding liability.
We do not currently offer direct deposit as a method for receiving a refund from an amended return. Overpayments will be refunded by check.
Line 72 — Follow the instructions on the form. This is your amount of tax due that must be paid in full if $1 or more. We encourage you to let us figure your penalties and interest and send you a bill instead of determining these amounts yourself. We will compute any penalty and interest due and notify you. For more information see "What are the penalties and interest?" in these instructions and Publication 103.
Note: We will apply all payments against tax first, penalty second, and interest third.

If you are not paying electronically, complete a payment voucher, Form IL-1065-X-V, make your check or money order payable to "Illinois Department of Revenue", write your FEIN, tax year ending, and "IL-1065-X-V" on your check or money order, and attach the payment and voucher to the front of the return.
Note: If you are paying electronically, do not complete and attach a payment voucher.
You should also enter the payment amount you are submitting with this return on the top of Page 1 of the Form IL-1065-X.

# Step 11: Signature, date, and paid preparer's information

You must sign and date your return. If you do not sign your return, it will not be considered filed and you may be subject to a nonfiler penalty.
If you pay someone to prepare your return, the income tax return preparer must also sign and date the return, enter the preparer tax identification number (PTIN) issued to them by the Internal Revenue Service, and provide their firm's name, FEIN, address, and phone number.
If you want to allow the paid preparer listed in this step to discuss this return with IDOR, check the box. This authorization will allow your paid preparer to answer any questions that arise during the processing of your return, call us with questions about your return, and receive or respond to notices we send. The authorization will automatically end no later than one year after you file your amended return. You may revoke the authorization at any time by calling or writing us.