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Illinois vs Georgia: state income tax, 2025

For reference household P1 (single, $60,000 of wages), Illinois charges $2,829or less and Georgia charges $2,491or less. Both are bounded in the same direction, so the difference between them cannot be stated.

Both figures are a hypothetical full-year resident return for tax year 2025, over the same federal return, and count state income tax only. Neither is a relocation estimate: moving mid-year means two part-year returns, which this site does not figure. “Or less” means a mechanism the engine does not yet model would lower the figure; “or more” that it would raise it.

Six households, both states

HouseholdIllinoisGeorgiaIllinois minus Georgia
P1 Single, $60,000 of wages$2,829or less$2,491or lessnot bounded
P2 Married filing jointly, $150,000, two children$6,861or less$6,124or lessnot bounded
P3 Single, $85,000 wages + $15,000 long-term gain + $3,000 qualified dividends$4,957or less$4,723or lessnot bounded
P4 Married retirees, $40,000 Social Security + $30,000 pension + $20,000 IRA, both 65+$0or less$0or lessnot bounded
P5 Head of household, $45,000, one child$1,945or less$1,505or lessnot bounded
P6 Single, $1,200,000 of wages + $500,000 long-term gain$84,150or less$87,607or lessnot bounded

Full-year resident figures for 2025, state income tax only, with the same federal return in every column. Every figure is provisional. “Not shown” and “not figured” mean the engine will not state a number it cannot stand behind; hover for why.

Where the difference comes from

Illinois

Georgia

What this comparison leaves out

Mechanisms the engine does not model yet. Each one is named with the direction it would move the figure, which is where every “or less” above comes from.

Illinois

  • Property tax and K-12 education expense credits (Schedule ICR) 35 ILCS 5/208, 5/201(m) — the figure is too high without it
  • Illinois municipal bond and U.S. obligation subtractions (Schedule M) 35 ILCS 5/203(a)(2) — the figure is too high without it
  • Credit for tax paid to another state (Schedule CR) 35 ILCS 5/601(b)(3) — the figure is too high without it

Georgia

  • Retirement exclusion for a filer aged 62–64 whose birth year the return does not give O.C.G.A. §48-7-27(a)(5) — the figure is too high without it
  • Retirement exclusion for a filer under 62 who is permanently disabled O.C.G.A. §48-7-27(a)(5)(B) — the figure is too high without it
  • Per-person ownership of interest, dividends and capital gains on a joint return O.C.G.A. §48-7-27(a)(5); IT-511 "allocated to each taxpayer at 50%" — the figure is too high without it
  • Georgia itemized deductions, the other-state-tax adjustment (lines 12a–12c) and the eligible itemizer credit (line 19) O.C.G.A. §48-7-27(a)(1) — the figure is too high without it
  • Unborn dependent exemption (line 7b) O.C.G.A. §48-7-26(a)(3) — the figure is too high without it
  • Credit for taxes paid to another state O.C.G.A. §48-7-28 — the figure is too high without it

Taxes that are not income tax. Property tax, sales and excise taxes, and state payroll levies such as disability or paid-leave contributions are not counted here, and none of them is small. Federal tax is excluded because it is the same in both columns. A state income tax comparison is not a total tax burden comparison; see methodology.

Data status

Illinois. 2025 rules are provisional; engine coverage is implemented, with 3 mechanisms declared as not yet modelled. See the 2025 rate table.

Georgia. 2025 rules are provisional; engine coverage is implemented, with 6 mechanisms declared as not yet modelled. See the 2025 rate table.

2026 state rules are not built yet, so this page compares 2025 only. Track status on the 2025 data status board.

Try it with your own return

The six households above are reference cases. Your own return will land differently. Compare Illinois and Georgia over your own return — it stays in your browser.