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Illinois Form IL-1040 (2025)

Your 2025 federal return, carried into Illinois as a full-year resident. Every figure is computed in your browser from the return you have already entered, and anything this engine cannot yet figure says so at the line rather than printing a number that would be wrong.

Tax year 2025il-2025.1provisional figures

This is a hypothetical Illinois return, so the official layout is not offered for it. A page that looked exactly like the printed form would be mistaken for one.

Federal — Form 1040

Total income—
Adjusted gross income—
Taxable income—
Total tax—

Illinois — Form IL-1040

State income—
Taxable income—
Total tax—
Refund or amount owednot computed — not your resident state
Form IL-1040 — Illinois Resident Income Tax Return
A working replica. Not an Illinois Department of Revenue form and not for filing.
Illinois Department of Revenue
Tax year 2025
Federal starting figure
Federal starting figure: blank
Additions
Additions: blank
Subtractions
Subtractions: blank
State income
State income: blank
Deduction
Deduction: blank
Exemptions
Exemptions: blank
Taxable income
Taxable income: blank
Tax before credits
Tax before credits: blank
Nonrefundable credits
Nonrefundable credits: blank
Total tax
Total tax: blank
Refundable credits
Refundable credits: blank
Payments, refund and amount owed
not figured
This engine does not yet figure Illinois’s withholding, estimated payments or settlement. Form IL-1040 has those lines; they are missing from this page, not from the form.
Worksheets and schedules behind these figures
12
Child tax credit
Child tax credit: blank
9
Earned income credit
Earned income credit: blank
Exemption age blind
Exemption age blind: blank
Exemption dependents
Exemption dependents: blank
Exemption personal
Exemption personal: blank
6
Overpayment subtraction
Overpayment subtraction: 0
Retirement subtraction
Retirement subtraction: blank
Tax exempt interest addition
Tax exempt interest addition: blank
Illinois Department of Revenue · Form IL-1040 (2025)NOT AN OFFICIAL ILLINOIS FORM IL-1040HYPOTHETICAL RETURN — FILER DOES NOT LIVE IN ILLINOIS

What this Illinois return is missing

  • Property tax and K-12 education expense credits (Schedule ICR)too high
    35 ILCS 5/208, 5/201(m) · 5% of Illinois property tax paid on a principal residence, plus education expenses
  • Illinois municipal bond and U.S. obligation subtractions (Schedule M)too high
    35 ILCS 5/203(a)(2) · the Illinois-source and Treasury share of tax-exempt interest, at 4.95%
  • Credit for tax paid to another state (Schedule CR)too high
    35 ILCS 5/601(b)(3) · out of scope by NG7 — this engine computes no multi-state allocation

What this Illinois return is not telling you

  • blankil1040.base_start could not be figured.
  • blankil1040.tax_exempt_interest_addition could not be figured.
  • blankil1040.additions could not be figured.
  • blankil1040.retirement_subtraction could not be figured.
  • blankil1040.subtractions could not be figured.
  • blankil1040.state_agi could not be figured.
  • n/aIllinois grants no standard deduction; it grants an exemption allowance instead.
  • blankil1040.exemption_personal could not be figured.
  • blankil1040.exemption_age_blind could not be figured.
  • blankil1040.exemption_dependents could not be figured.
  • blankil1040.exemptions could not be figured.
  • blankil1040.taxable_income could not be figured.
  • blankil1040.tax_before_credits could not be figured.
  • blankil1040.nonrefundable_credits could not be figured.
  • blankil1040.total_tax could not be figured.
  • blankil1040.earned_income_credit could not be figured.
  • blankil1040.child_tax_credit could not be figured.
  • blankil1040.refundable_credits could not be figured.