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Indiana Add-Backs

Although most of the expenses and deductions used to figure your federal taxes are allowed on your Indiana tax return, some need to be “added back” to calculate the correct income used to figure Indiana income tax due.

For example, interest earned from a direct obligation of a state or political subdivision other than Indiana is taxable to Indiana if the obligation was acquired after December 31, 2011. An individual who received $421 in interest from bonds issued by another state and purchased after December 31, 2011, will have to “add back” $421 to the amount of income used to calculate the tax obligation for Indiana.

You must complete your federal tax return, Form 1040/1040-SR, through the federal adjusted gross income (AGI) line before beginning to figure your Indiana individual income tax return.

Find current year tax forms

  • Bonus depreciation add-back

    Eligibility

    You must make an exception for any bonus depreciation deduction used for property placed in service after Sept. 11, 2001. Bonus depreciation is the additional first-year special depreciation deduction allowed under Section 168(k) of the Internal Revenue Code (IRC).

    Figure the net income (or loss) which would have been included in federal adjusted gross income had the bonus depreciation method not been used. The difference, which may be a positive or negative amount, must be added back.

    Example: Mack used the bonus depreciation method for federal income tax purposes. After refiguring the depreciation without using the bonus method, he has to add back $1,500 on his Indiana tax return.

    See Income Tax Information Bulletin 118.

  • Domestic production activities add-back

    If you claimed a domestic production activities deduction on your federal Form 1040, line 35, enter that amount on line 4 of Form IT-40.

  • Net operating loss add-back

    Eligibility

    Any net operating loss deduction taken on line 21 of your federal Form 1040 must be added back. Write the amount of the net operating loss as a positive figure. (You will claim an Indiana net operating loss deduction on Indiana’s Schedule 2, under line 11. Get Schedule IT-40NOL to figure your Indiana loss.)

  • OOS municipal obligation interest add-back

    Eligibility

    Any interest earned from a direct obligation of the State of Indiana or a political subdivision of the State of Indiana is not taxable for Indiana income tax purposes.

    Interest earned from a direct obligation of a state or political subdivision other than Indiana is taxable to Indiana if the obligation was acquired after December 31, 2011. Interest earned from obligations held or acquired prior to December 31, 2011, is not subject to Indiana income tax.

    Example: Martha, an Indiana resident, purchased bonds issued by the city of Washington, Indiana. The $247 interest income received from these bonds is exempt from tax by Indiana. She also purchased bonds issued by the city of San Antonio, Texas. She received $421 interest from these bonds, which were purchased after December 31, 2011. She will have to add back the $421 interest received from the OOS municipal bonds.

  • Qualified preferred stock

    Eligibility

    If an individual:

    • Had losses from the sale or exchange of preferred stock in either Federal National Mortgage Association or Federal Home Loan Mortgage Corporation;
    • Treated the loss from the sale or exchange as ordinary income for federal income tax purposes in the year the loss had been incurred; and
    • Had any amount previously added back that not been allowed as a deduction, the individual is permitted to continue deducting the loss not previously allowed as a capital loss.

    However, the amount allowable as a capital loss must be computed in accordance with federal limitations on allowable capital losses. See IRC sections 1211 and 121 for further details on federal limitations.

  • Section 179 expense add-back

    Eligibility

    You may have figured an IRC Section 179 expense using a ceiling of more than $25,000 for federal tax purposes. Indiana allows you to figure IRC Section 179 expense using a ceiling of no more than $25,000.

    If you figured IRC Section 179 expense using a ceiling amount of more than $25,000, you’ll need to add back the difference between it and $25,000.

    Note: Plus Forms 1040NR/1040NR-EZ, filed by U.S. Nonresident Aliens

  • Tax add-back

    Eligibility

    If you did not complete Federal Schedules C, C-EZ, E, or F, which include sole proprietorship income, farm income, rental, partnership, S corporation, and trust and estate income (or loss), then do not complete this line.

    On those schedules you are allowed to claim a deduction for taxes paid which are:

    • Based on, or
    • Measured by income, and
    • Levied at a state level by any state in the United States.

    If you claimed this kind of deduction on any of these schedules, then you must add it back to your Indiana income.

    Do not add back property taxes on this line.

    Note: Income, losses and/or expenses from other schedules and forms may flow through to federal Schedules C, E and F. For example, partnership income from federal Schedule K-1 (Form 1065) may be included on federal Schedule E, while expenses from federal Form 8829 may be included on federal Schedule C. Make sure to check these schedules and forms for any deduction that needs to be added back.

  • Employer student loan payment add-back

    Eligibility
    Your employer paid any amount for your student loans and you excluded the payment from federal gross income. See IT-40 or IT-40PNR instruction booklet for more information about this add-back.

  • Meal expenses add-back

    Eligibility

    • If an individual claimed a deduction for meal expenses regarding food and beverages provided by a restaurant in computing your federal adjusted gross income;
      and
    • The deduction would have been limited to 50% of the meal expenses if the expenses had been incurred before Jan. 1, 2021.

    See IT-40 or IT-40PNR instruction booklet for more information about this add-back.

  • Modifications for excess business losses

    Eligibility

    If you:

    • Have current-year excess business loss under IRC section 461(l) that is not deducted in determining your federal adjusted gross income,
    • Have current-year federal deductions that:
    • Are otherwise disallowed in determining your current-year federal adjusted gross income due to having a current-year excess business loss, and
    • for which an add-back is required for Indiana adjusted gross income tax purposes.
  • Modifications from excess inclusion income

    Eligibility 

    If you:

    • Have a net operating loss for federal purposes incurred the current taxable year that does not appear in your federal taxable income as a result of reporting excess inclusion income under IRC section 860E; and
    • Have modifications to your Indiana adjusted gross income that are allowable in determining your Indiana net operating loss
  • Nonprofit separate trade or business modification

    Eligibility 

    If you:

    • have a current-year net operating loss that arises from a trade or business,
    • did not report the loss on line 1 of Form IT-20NP, and
    • have modifications related to that trade or business
  • Specified research or experimental expenditures add-back

    Eligibility 

    If you claimed a federal income tax deduction for specified research and experimental expenses that are required to be amortized for federal purposes pursuant to IRC section 174.

  • Student loan discharge add-back

    Eligibility

    You had a student loan discharged during the taxable year and you excluded the amount of the discharge from your federal gross income. See IT-40 or IT-40PNR instruction booklet for more information about this add-back.

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