Illinois has a flat income tax rate of 4.95%, the 8th highest combined sales tax (8.98%) and a $15.00 minimum wage as of 2026.
$13,673 a year: that is roughly what a Illinois homeowner earning $75,000 pays in state income tax ($3,712), sales tax on $25,000 of purchases ($2,245), property tax on a $300,000 house ($5,640) and electricity at 900 kWh a month ($2,076).
Illinois uses a single flat rate. Single filers' standard deduction: none or a personal exemption instead. On $50,000 of wages, a single filer's Illinois tax works out to about $2,475 (5.0% of wages); on $100,000 it is about $4,950 (5.0%). Source: Tax Foundation, January 1, 2026.
| Rate | Single filers | Married filing jointly |
|---|---|---|
| 4.95% | over $0 | over $0 |
Estimated 2026 take-home pay for a single filer with no pre-tax deductions, using the federal brackets and $16,100 standard deduction, Social Security and Medicare, and Illinois's brackets above. Open the paycheck calculator set to Illinois to add a 401(k), change pay frequency or filing status.
| Salary | Federal tax | FICA | State tax | Take-home (year) | Per biweekly check |
|---|---|---|---|---|---|
| $50,000 | $3,820 | $3,825 | $2,475 | $39,880 | $1,534 |
| $75,000 | $7,670 | $5,738 | $3,712 | $57,880 | $2,226 |
| $100,000 | $13,170 | $7,650 | $4,950 | $74,230 | $2,855 |
The state rate is 6.25% and local governments add 2.73% on average, for a combined 8.98%, 8th highest of the 50 states and D.C. (median 7.00%). A $1,000 purchase carries about $90 in sales tax at the average combined rate. Source: Tax Foundation, July 1, 2026.
The Illinois minimum wage is $15.00 an hour, 13th highest in the country, or $31,200 a year for full-time work, $16,120 more than the federal $7.25. Source: U.S. Department of Labor, July 1, 2026.
Homeowners in Illinois paid property taxes equal to 1.88% of home value on average, the 1st highest effective rate (median state 0.79%). On a $300,000 home that is about $5,640 a year, or $470 a month in escrow. Source: Tax Foundation (Census ACS data), 2024 data.
Residential electricity averaged 19.22¢ per kWh in July 2026, the 17th highest of the 50 states and D.C. (median 16.09¢). A household using 900 kWh a month would pay about $173 before fixed charges. Source: U.S. EIA, July 2026 data.
Among the 5 states it borders, Illinois has the highest combined sales tax of its neighbors (8.98%), the highest property tax rate of its neighbors (1.88%) and the highest electricity price of its neighbors (19.22¢).
| State | Top income tax | Sales tax | Min. wage | Property tax | Electricity |
|---|---|---|---|---|---|
| Illinois | 4.95% | 8.98% | $15.00 | 1.88% | 19.22¢ |
| Indiana | 2.95% | 7.00% | $7.25 | 0.76% | 16.73¢ |
| Iowa | 3.8% | 6.94% | $7.25 | 1.33% | 15.99¢ |
| Kentucky | 3.5% | 6.00% | $7.25 | 0.74% | 13.81¢ |
| Missouri | 4.7% | 8.44% | $15.00 | 0.89% | 16.09¢ |
| Wisconsin | 7.65% | 5.72% | $7.25 | 1.32% | 19.06¢ |
Illinois figures use statewide averages and skip credits, exemptions and local income taxes; check Illinois revenue and labor department sites before filing or hiring.