$18 an hour after taxes in Illinois
$18 an hour is $37,440 a year before tax at 40 hours a week. After 2026 federal, FICA and Illinois taxes:
You keep
$30,555
a year after taxes
- Every two weeks
- $1,175
- A month
- $2,546
- Effective tax rate
- 18.4%
IL A flat 4.95% income tax
| Line | Every two weeks | Year |
|---|---|---|
GROSS Gross pay |
$1,440.00 | $37,440.00 |
FED Federal income tax |
-$88.95 | -$2,312.80 |
OASDI Social Security tax |
-$89.28 | -$2,321.28 |
MED Medicare tax |
-$20.88 | -$542.88 |
ST Illinois income tax |
-$65.71 | -$1,708.49 |
NET Take-home pay | $1,175.17 | $30,554.55 |
$18 an hour per paycheck, month and day in Illinois
| Period | Gross | Taxes | Take-home |
|---|---|---|---|
| Year | $37,440 | -$6,885 | $30,555 |
| Month | $3,120 | -$574 | $2,546 |
| Every two weeks | $1,440 | -$265 | $1,175 |
| Week | $720 | -$132 | $588 |
| Day | $144 | -$26 | $118 |
Biweekly means 26 paychecks a year. A day is one of 260 working days (five a week). "Taxes and deductions" includes every line on the stub above.
If you work more or fewer hours
| Hours a week | Yearly gross | Yearly take-home |
|---|---|---|
| 20 | $18,720 | $16,244 |
| 25 | $23,400 | $19,866 |
| 30 | $28,080 | $23,489 |
| 35 | $32,760 | $27,026 |
| 40 | $37,440 | $30,555 |
| 45 (5 overtime) | $44,460 | $36,128 |
| 50 (10 overtime) | $51,480 | $41,702 |
From 2026, federal income tax exempts the overtime premium (the extra half of time-and-a-half) up to $12,500 a year for single filers. Social Security, Medicare and Illinois tax still apply to it in this estimate.
What $18 an hour affords in Illinois
- Rent at 30% of gross pay
- $936 a month
- Needs (50% of take-home)
- $1,273 a month
- Wants (30%)
- $764 a month
- Savings and debt (20%)
- $509 a month
The 30% rule is the benchmark HUD uses for housing cost burden. The 50/30/20 split applies to the $2,546 monthly take-home figure above.
How Illinois compares
Illinois taxes wages at a flat 4.95%. On $18 an hour ($37,440 a year) the state takes $1,708 in income tax (4.6% of gross), the 49th lowest of 51 jurisdictions.
| State | State taxes | Take-home a year |
|---|---|---|
| Illinois | $1,708 | $30,555 |
| Iowa | $771 | $31,492 |
| Indiana | $1,075 | $31,188 |
| Kentucky | $1,193 | $31,070 |
| Missouri | $795 | $31,468 |
| Wisconsin | $958 | $31,305 |
| California | $967 | $31,296 |
Questions people ask about $18 an hour in Illinois
How much is $18 an hour a year after taxes in Illinois?
Working 40 hours a week for 52 weeks, $18 an hour is $37,440 before tax. After $2,313 federal income tax, $2,864 Social Security and Medicare, and $1,708 in Illinois state taxes, you take home $30,555 a year as a single filer in 2026.
How much is $18 an hour biweekly after taxes in Illinois?
$18 an hour is $1,440 gross every two weeks. After taxes a biweekly paycheck comes to about $1,175.
$18 an hour is how much a month?
$18 an hour is $3,120 a month before tax and about $2,546 after tax in Illinois, averaged over 12 months.
How much rent can I afford on $18 an hour?
The 30% rule puts rent at $936 a month on $3,120 gross. Budgeting from take-home pay with 50/30/20, all needs including rent get $1,273.
How much is $18 an hour with overtime in Illinois?
At 50 hours a week (10 hours at $27.00), you earn $51,480 a year and keep $41,702. The 2026 federal overtime deduction takes $4,680 of overtime premium out of federal taxable income; Social Security and Medicare still apply.
How much Illinois state tax comes out of $18 an hour?
$1,708 a year, or $66 per biweekly paycheck, in Illinois income tax. Local income taxes, where they exist, are not included.
Try your own numbers
Sources and assumptions
Tax year 2026. Annual tax for a filer with no dependents, no other income and no credits, working 52 weeks. Hours over 40 a week are paid at 1.5×. Local income taxes are not included. How we calculate.
- IRS Revenue Procedure 2025-32: federal brackets and standard deduction (retrieved 2026-09-26)
- Social Security Administration: 2026 wage base; IRS: Medicare and Additional Medicare Tax
- Illinois tax source (retrieved 2026-09-26)