2026 Illinois Income Tax Brackets & Rates
Federal and state tax brackets, capital gains rates, and corporate tax rates for Illinois in tax year 2026.
Federal Income Tax Brackets (2026)
| From | To | Rate |
|---|---|---|
| $0 | $12,400 | 10.00% |
| $12,400 | $50,400 | 12.00% |
| $50,400 | $105,700 | 22.00% |
| $105,700 | $201,775 | 24.00% |
| $201,775 | $256,225 | 32.00% |
| $256,225 | $640,600 | 35.00% |
| $640,600 | ∞ | 37.00% |
Illinois State Income Tax Brackets (2026)
| From | To | Rate |
|---|---|---|
| $0 | ∞ | 4.95% |
Federal Capital Gains Tax Brackets (2026)
| From | To | Rate |
|---|---|---|
| $0 | $49,450 | 0.00% |
| $49,450 | $545,500 | 15.00% |
| $545,500 | ∞ | 20.00% |
Additional Information
- Federal Corporate Tax Rate
- 21.00%
- State Corporate Tax Rate
- 9.50%
- Federal Standard Deduction (Single)
- $16,100
Sources & Trust
Every figure above is traceable to a published source. Each source is rated by what published it, not by how confident we feel about it.
Federal (United States) — 2026
OfficialValues verified- Rate bracketsTier 1 · Primary authority
- Standard deductionTier 1 · Primary authority
- Capital gainsTier 1 · Primary authority
- Corporate rateTier 1 · Primary authority
3 sources— show— hide
Cited for Rate brackets, Standard deduction, Capital gains, Corporate rate · confirmed
Section 4.14(1) table, page 18 of the PDF
- Irs Releases Tax Inflation Adjustments For Tax Year 2026 Including…irs.govTier 1 · Primary authority
Cited for Rate brackets, Standard deduction · confirmed
Press release states $16,100 directly
Cited for Corporate rate · confirmed
Official U.S. Code text: flat 21% corporate rate under §11(b)
How we rate sources — tiers are derived from what published the document, not from our confidence in it.
Illinois — 2026
OfficialValues verifiedPersonal exemption ($2,925) separately verified against IDOR Bulletin FY 2026-15 (Dec 2025). Individual rate (4.95%) and corporate rate (9.5%) carry forward unchanged from 2025, independently reconfirmed against primary IDOR sources.
- Rate bracketsTier 1 · Primary authority
- Standard deductionNot separately cited
- Capital gainsTier 3 · Expert secondary
- Corporate rateTier 1 · Primary authority
6 sources— show— hide
Cited for Rate brackets · confirmed
Primary citation recorded with the tax table entry; coverage beyond the rate brackets is unconfirmed.
Cited for Rate brackets, Corporate rate · confirmed
Official DOR bulletin itemizing all PA 104-0006 changes; no rate change among them. Fetched this session.
Cited for Rate brackets · confirmed
Official DOR 'What's New for Illinois Income Taxes' (2026 exemption/withholding); no individual rate change mentioned. Fetched this session.
Cited for Rate brackets, Capital gains, Corporate rate · confirmed
Corroboration only (aggregator tax alert): confirms the FY2027 budget bill (SB 3019) did not change the individual rate.
- 2026 1374 Illinois Budget Includes New Social Media And Digital Taxes…taxnews.ey.comTier 3 · Expert secondary
Cited for Rate brackets, Capital gains · confirmed
Corroboration only (EY tax alert): same conclusion, with QSBS/NOL effective dates.
- Illinois Passes Record 55 9 Billion Budget With Over 800 Million In Tax…illinoispolicy.orgTier 3 · Expert secondary
Cited for Corporate rate · confirmed
Corroboration only: itemizes the FY2027 budget's revenue provisions; explicitly states the 7% corporate rate and 2.5% PPRT were not changed.
How we rate sources — tiers are derived from what published the document, not from our confidence in it.