Illinois Income Tax Brackets 2026
Illinois uses a flat income tax system with 1 bracket.
State Tax
5.0%
Top marginal rate
COL Index
94
Below national avg
Median Income
$83,211
Household
Brackets
1
Flat tax
Illinois Tax Brackets (single filer schedule)
Our dataset holds one bracket schedule per state, shown here for a single filer. We do not have separate married-filing-jointly state brackets, so joint filers should check the state revenue department.
| Income Range | Marginal Rate |
|---|---|
| $0 — and above | 4.95% |
Illinois State Tax at Different Income Levels
| Gross Income | State Tax | Effective Rate |
|---|---|---|
| $50,000 | $2,475 | 4.95% |
| $75,000 | $3,713 | 4.95% |
| $100,000 | $4,950 | 4.95% |
| $150,000 | $7,425 | 4.95% |
| $200,000 | $9,900 | 4.95% |
| $300,000 | $14,850 | 4.95% |
Take-Home Pay in Illinois at Common Salaries
Single filer, 2026 standard deduction, wages only. Computed with the same federal, state, and FICA functions as our tax calculator.
| Gross | Federal | Illinois | FICA | Take-home / yr | Per month |
|---|---|---|---|---|---|
| $50,000 | $3,820 | $2,475 | $3,825 | $39,880 | $3,323 |
| $75,000 | $7,670 | $3,713 | $5,738 | $57,879 | $4,823 |
| $100,000 | $13,170 | $4,950 | $7,650 | $74,230 | $6,186 |
| $150,000 | $24,734 | $7,425 | $11,475 | $106,366 | $8,864 |
2026 Federal Brackets (apply in Illinois too)
Federal brackets apply to taxable income after the standard deduction ($16,100 single, $32,200 married filing jointly).
Single
| $0 — $12,400 | 10% |
| $12,400 — $50,400 | 12% |
| $50,400 — $105,700 | 22% |
| $105,700 — $201,775 | 24% |
| $201,775 — $256,225 | 32% |
| $256,225 — $640,600 | 35% |
| $640,600 — and above | 37% |
Married filing jointly
| $0 — $24,800 | 10% |
| $24,800 — $100,800 | 12% |
| $100,800 — $211,400 | 22% |
| $211,400 — $403,550 | 24% |
| $403,550 — $512,450 | 32% |
| $512,450 — $768,700 | 35% |
| $768,700 — and above | 37% |
Calculate Your Exact Illinois Taxes
See your full federal + state + FICA breakdown with our interactive calculator.
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Frequently Asked Questions about Illinois Taxes
Does Illinois have state income tax?
Illinois has a progressive income tax system with rates ranging from 5.0% to 5.0% for 2026.
How much is federal tax in Illinois?
Federal income tax in Illinois is the same as in all other US states. For 2026, the federal brackets range from 10% to 37%, depending on your taxable income and filing status.
What is the cost of living in Illinois?
The cost of living in Illinois has an index of 94, where 100 is the national average. This means Illinois is 6% cheaper than the average US state.