IDAPA 35.01.01.252 — NONRESIDENT AND PART-YEAR RESIDENT INDIVIDUALS -- ADJUSTMENTS ALLOWED

IN COMPUTING IDAHO ADJUSTED GROSS INCOME (RULE 252).
Section 63-3026A(6), Idaho Code
01.
In General. Deductions allowed in computing adjusted gross income will be allowed in computing
Idaho adjusted gross income unless specifically denied by Idaho law. The amount allowed will be computed as
provided in this rule. Each computation in this rule will include the amounts reported for the taxable year unless
otherwise indicated.
(4-6-23)
02.
Deductions Directly Related to Specific Items of Income or Property. If the deduction directly
relates to a specific item of income or property, the allowable deduction will be computed by dividing the amount of
related income reported in Idaho income by the total of such related income reported in federal income. This
IDAHO ADMINISTRATIVE CODE
IDAPA 35.01.01
Idaho State Tax Commission
Income Tax Administrative Rules
Section 252
Page 31
percentage is multiplied by the deduction to arrive at the amount allowed as an Idaho deduction. If the deduction is
related to property that did not generate income during the taxable year, the deduction will be allowed in the
proportion that the property to which the deduction relates was located in Idaho. Examples of some of these
deductions include the following:
(4-6-23)
a.
Penalty on early withdrawal of savings. The allowable deduction will be computed by dividing the
interest income of the time savings deposit subject to the penalty included in Idaho income by the total interest
income of the time savings deposit included in federal income. This percentage is multiplied by the penalty deduction
allowed for federal purposes.
(4-6-23)
b.
Certain business expenses of reservists, performing artists, and fee-basis government officials.
(4-6-23)
c.
Jury duty pay remitted to an employer.
(4-6-23)
d.
Deductible expenses related to income from the rental of personal property engaged in for profit.
(4-6-23)
e.
Reforestation amortization and expenses. The allowable deduction will be computed by dividing
the income from the related timber operations included in Idaho income by the total income from the related timber
operations. If there is no income from the related timber operations for the year of the deduction, the allowable
deduction will be computed based on the percentage of property in Idaho to total property to which the reforestation
amortization and expenses relate. This percentage is multiplied by the reforestation amortization and expense
deduction allowed for federal income tax purposes.
(4-6-23)
f.
Repayment of supplemental unemployment benefits. The allowable deduction will be computed by
dividing the supplemental unemployment benefits included in Idaho income by the total supplemental unemployment
benefits reported in federal income. This percentage is multiplied by the repayment deduction allowed for federal
purposes.
(4-6-23)
g.
Attorney fees and court costs. The allowable deduction will be computed by dividing the total
income related to the attorney fees and court costs included in Idaho income by the total income from such actions.
This percentage is multiplied by the attorney fees and court costs allowed for federal purposes.
(4-6-23)
03.
Deductions Allowed Based on Qualifying Types of Income. If the deduction is dependent on the
taxpayer earning a qualifying type of income, the allowable deduction will be computed by dividing the amount of
the qualifying income reported in Idaho income by the total of such qualifying income reported. This percentage is
multiplied by the deduction to arrive at the amount allowed as an Idaho deduction.
(4-6-23)
a.
Payments to an individual retirement account (IRA), federal health savings or medical savings
account, or Section 501(c)(18)(D) retirement plan. The allowable deduction will be computed by dividing the
taxpayer's Idaho compensation by the taxpayer's total compensation. This percentage is multiplied by the deduction
allowed for federal purposes. For purposes of this rule, compensation means "compensation" as defined in Section
219(f)(1), Internal Revenue Code, and Treasury Regulation Section 1.219-1(c)(1). Idaho compensation is determined
pursuant to Rule 270 of these rules.
(4-6-23)
b.
Payments to a Keogh retirement plan, simplified employee pension (SEP) Plan, SIMPLE Plan, self-
employment tax, and self-employment health insurance. The allowable deduction will be computed by dividing the
taxpayer's self-employment income from Idaho sources by the taxpayer's total self-employment income. This
percentage is multiplied by the self-employment deductions allowed for federal purposes.
(4-6-23)
04.
Other Deductions. Deductions that do not relate to specific items of income or to the earning of
qualifying income will be allowed in the proportion that Idaho total income bears to federal total income. The federal
net operating loss deduction is not included in either the federal total income or the Idaho total income for this
calculation. Such deductions include the following:
(4-6-23)
IDAHO ADMINISTRATIVE CODE
IDAPA 35.01.01
Idaho State Tax Commission
Income Tax Administrative Rules
Section 253
Page 32
a.
Alimony payments.
(4-6-23)
b.
Moving expenses.
(4-6-23)
c.
Student loan interest payments.
(4-6-23)
d.
Tuition and fees deduction.
(4-6-23)