$18 an hour after taxes in California
$18.00 an hour is about $31,630 a year after federal taxes and California state tax — roughly $2,636 a month take-home. That's an estimated 15.5% of gross pay going to income tax, Social Security, and Medicare.
Take-home from $18/hour
$31,630 / year
$2,636 a month · $1,216.53 per bi-weekly paycheck
| Gross pay | $37,440.00 |
|---|---|
| Federal income tax | −$2,312.80 |
| California income tax | −$633.29 |
| Social Security | −$2,321.28 |
| Medicare | −$542.88 |
| Net (take-home) | $31,629.75 |
Effective tax + FICA rate: 15.5% · Assumes 40 hrs/week, single filer, California.
Estimate only. Excludes local/city taxes, W-4 adjustments, and other withholdings. This is not tax advice.
$18.00 an hour is close to what a typical U.S. full-time worker earns. Over a year of 40-hour weeks that is $37,440 before taxes.
At this level most of your income falls in the 10% and 12% federal brackets after the standard deduction. Contributing to a 401(k) or HSA lowers the income that's taxed (though not the Social Security and Medicare portion), so pre-tax deductions are one of the few levers that noticeably change take-home pay here.
California note: Progressive 1%–12.3% using California's 2025 tax rate schedules — the latest the FTB has published; the inflation-adjusted 2026 schedules are not yet released. Estimates exclude the separate California State Disability Insurance (SDI) payroll deduction of 1.3% on all wages.