Illinois Nonbusiness Income
Extracted from PDF file 2025-illinois-schedule-nb.pdf, last modified July 2025Nonbusiness Income
Use your mouse or Tab key to move through the fields. Use your mouse or space bar to enable check boxes. *33912251W* Illinois Department of Revenue Schedule NB Nonbusiness Income Month Year IL Attachment No. 17 Attach to your Form IL-1120, IL-1120-ST, or IL-1065. Enter your name as shown on your Form IL-1120, IL-1120-ST, or IL-1065. Year ending Enter your federal employer identification number (FEIN). Read the instructions before completing this form. Column A Total everywhere Column B Allocable to Illinois 1 Interest* 1 2 Dividends* 2 3 Rental income 3 4 Patent royalties 4 5 Copyright royalties 5 6 Other royalty income 6 7 Capital gain (loss) from real property 7 8 Capital gain (loss) from tangible personal property 8 9 Intangible personal property a Capital gain (loss) from intangible personal property other than from sales or exchanges of shares or interests in pass-through entities 9a b Capital gain (loss) from sales or exchanges of shares or interests in pass-through entities (see instructions) 9b 9 Add Lines 9a and 9b. 10 Other (specify) 10 11 Recaptured business expense (see instructions). 12 Totals. Add Lines 1 through 8 and Lines 9 through 11 for each column. 12 Apportionment factor worksheet (see instructions) a Enter your apportionment factor from two years ago (if applicable). a b Enter your apportionment factor from last year’s tax return. b c Enter your apportionment factor from this year’s tax return. c d Add Lines a, b, and c. d e If you have an amount on Line a, divide Line d by 3. If you do not have an amount on Line a, divide Line d by 2. e f Enter the greater of Line c or Line e. This is your apportionment factor. f g Multiply Column A, Line 11 by Line f, and enter the result here and on Column B, Line 11. g * Interest and dividends are allocable to Illinois if your commercial domicile was in Illinois at the time the interest or dividend was paid or accrued. Schedule NB (R-12/25) This form is authorized as outlined by the Illinois Income Tax Act. Disclosure of this information is REQUIRED. Failure to provide information could result in a penalty. Reset Print Printed by the authority of the state of Illinois - electronic only - one copy.
2025 Schedule NB, Nonbusiness Income
More about the Illinois Schedule NB Individual Income Tax TY 2025
We last updated the Nonbusiness Income in February 2026, so this is the latest version of Schedule NB, fully updated for tax year 2025. You can download or print current or past-year PDFs of Schedule NB directly from TaxFormFinder. You can print other Illinois tax forms here.
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TaxFormFinder has an additional 75 Illinois income tax forms that you may need, plus all federal income tax forms.
| Form Code | Form Name |
|---|---|
| Form IL-1040-PTR | ​Property Tax Rebate Form |
| Form IL-1040 | Individual Income Tax Return |
| Schedule ICR | Illinois Tax Credits |
| Schedule NLD | Illinois Net Loss Deduction |
| Schedule NR-1040 | Nonresident and Part-Year Resident Computation of Illinois Tax |
View all 76 Illinois Income Tax Forms
Form Sources:
Illinois usually releases forms for the current tax year between January and April. We last updated Illinois Schedule NB from the Department of Revenue in February 2026.
About the Individual Income Tax
The IRS and most states collect a personal income tax, which is paid throughout the year via tax withholding or estimated income tax payments.
Most taxpayers are required to file a yearly income tax return in April to both the Internal Revenue Service and their state's revenue department, which will result in either a tax refund of excess withheld income or a tax payment if the withholding does not cover the taxpayer's entire liability. Every taxpayer's situation is different - please consult a CPA or licensed tax preparer to ensure that you are filing the correct tax forms!
Historical Past-Year Versions of Illinois Schedule NB
We have a total of twelve past-year versions of Schedule NB in the TaxFormFinder archives, including for the previous tax year. Download past year versions of this tax form as PDFs here:
2025 Schedule NB, Nonbusiness Income
Schedule NB
Schedule NB, Nonbusiness Income
Schedule NB
Schedule NB, Nonbusiness Income
Schedule NB, Nonbusiness Income
Schedule NB, Nonbusiness Income
Schedule NB, Nonbusiness Income
Schedule NB, Nonbusiness Income
Schedule NB, Nonbusiness Income
(2015) Schedule NB, Nonbusiness Income
2014 Schedule NB Nonbusiness Income
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