Illinois · 2026 Tax Year
Illinois Income Tax Calculator
Illinois's top marginal state income tax rate is 4.95%. This calculator combines federal and state brackets to estimate your total liability.
Impôt fédéral sur le revenu
Illinois state tax
Impôt total estimé
Net à percevoir
Effective rate: %
Illinois Income Tax in 2026
Illinois uses a low income tax with a top marginal rate of 4.95%. That rate kicks in at higher income levels; most filers fall into a lower effective bracket. Lower-income households often pay an effective state rate of 2–4%.
Combined with federal tax (10%–37%), Social Security (6.2% up to the wage base) and Medicare (1.45%), the all-in federal+state tax bite for Illinois residents at $100k gross typically lands in the 25%–32% effective range, depending on deductions.
Federal + State Tax at Common Income Levels (Illinois, single filer)
| Revenu brut | Impôt fédéral | Taxe de l'État | Net |
|---|---|---|---|
| $40,000 | $2,816 | $817 | $36,367 |
| $60,000 | $5,216 | $1,461 | $53,323 |
| $80,000 | $9,441 | $2,104 | $68,455 |
| $100,000 | $13,841 | $2,748 | $83,411 |
| $150,000 | $25,539 | $4,356 | $120,105 |
| $200,000 | $37,539 | $5,965 | $156,496 |
| $300,000 | $70,265 | $9,183 | $220,553 |
Estimates only — assumes standard deduction, no credits, no FICA. Consult a CPA for filing decisions.
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