$18 an Hour Is How Much a Year?
- Federal income tax$2,3136.2%
- FICA — Social Security + Medicare$2,8647.7%
- Take-home pay$32,26386.2%
At 40 hours a week and 52 weeks a year — 2,080 paid hours — $18 an hour is $37,440 a year. Federal income tax and FICA take about $5,177, so you keep roughly $32,263 a year, or $2,689 a month and $1,241 per biweekly check. That is before any state income tax.
The same $18, at different hours
"How much a year" depends entirely on how many hours you actually get. The table below re-runs the whole calculation for each schedule instead of scaling the 40-hour answer, because federal tax is progressive: a 30-hour week lands in a lower bracket and keeps a bigger share of each dollar. Hours above 40 are paid at 1.5× under the FLSA.
| Hours a week | Weekly gross | Annual gross | Annual after tax | Monthly after tax |
|---|---|---|---|---|
| 20 | $360 | $18,720 | $17,026 | $1,419 |
| 30 | $540 | $28,080 | $24,734 | $2,061 |
| 35 | $630 | $32,760 | $28,503 | $2,375 |
| 40 (full time) | $720 | $37,440 | $32,263 | $2,689 |
| 45 (incl. OT) | $855 | $44,460 | $37,904 | $3,159 |
| 50 (incl. OT) | $990 | $51,480 | $43,544 | $3,629 |
| 55 (incl. OT) | $1,125 | $58,500 | $49,185 | $4,099 |
Overtime rows assume time-and-a-half above 40 hours, which is the federal floor. A union contract, a state law or a company policy can set a higher multiplier; none of them can set a lower one.
Where the $37,440 goes
| Line | Annual | Share of gross |
|---|---|---|
| Gross pay | $37,440 | 100.0% |
| Federal income tax | -$2,313 | 6.2% |
| Social Security | -$2,321 | 6.2% |
| Medicare | -$543 | 1.5% |
| Federal only state income tax | -$0 | 0.0% |
| Take-home pay | $32,263 | 86.2% |
Social Security is 6.2% of the first $184,500 of wages, so it stops mid-year for high earners and never stops at this level. Medicare is 1.5% with no cap. Federal income tax is progressive: with the $16,100 standard deduction, a single filer at this income sits in the 12.0% bracket at the margin, not at 13.8%.
State tax on $37,440: three reference states
State income tax is the one layer this page cannot settle for you, so here is the same salary in three states with very different rules — no income tax, a progressive coastal state, and a progressive state with city tax on top.
| State | State + local tax | Annual after everything | Monthly |
|---|---|---|---|
| Texas | None | $32,263 | $2,689 |
| California | $933 | $31,330 | $2,611 |
| New York | $1,425 | $30,838 | $2,570 |
The state rows link to the nearest salary page that exists for that state (the ladder runs in $25,000 steps at the bottom and $10,000 steps higher up). City taxes (New York City, for example) are added inside the state figure.
Overtime is where hourly pay actually compounds
At $18 an hour, 40 hours pays $720 a week. Five hours of overtime pays those five hours at $27.00 each, so a 45-hour week is $855 — $135 more than the same job at 40 hours. A 50-hour week is $990, which is 37.5% more gross for 25.0% more hours.
Two catches. First, overtime is paid on hours actually worked, so a salary offer of $37,440 for the same job is not the same deal if you regularly work 45 hours — as an exempt salaried employee you would get nothing extra for those five. Second, overtime is ordinary wages for tax purposes: it pushes you up the brackets, so the 37.5% gross premium does not translate into the same percentage of take-home.
What unpaid weeks do to the yearly number
| Paid weeks | Annual gross | Annual after tax | Difference from 52 weeks |
|---|---|---|---|
| 52 | $37,440 | $32,263 | — |
| 50 | $36,000 | $31,106 | −$1,157 |
| 48 | $34,560 | $29,949 | −$2,314 |
Hourly work has no paid vacation by default. Two weeks unpaid costs $1,157 of take-home, not $1,440 of gross — the tax you no longer owe comes back to you.
Nearby hourly rates
Questions people ask about $18 an hour
Is $18 an hour a good wage?
This page does arithmetic, not judgement. What it can tell you: $37,440 a year before tax, $32,263 after federal tax and FICA, $2,689 a month. Whether that is enough depends on rent where you live and how many hours you actually get — and hourly work has no paid time off, so the yearly figure assumes you are paid for all 52 weeks.
How many hours is "a year" at $18 an hour?
2,080 hours, from 40 hours a week times 52 weeks. That convention is why 40-hour payroll is usually quoted as 2,080 hours a year, and why a full-time salary divided by 2,080 gives the hourly equivalent.
Does $18 an hour become a different number with overtime?
Yes, and the table above shows both. Five hours of overtime a week at 1.5× adds $135 a week, or $7,020 a year before tax. Nothing in the tax code treats overtime differently — it is ordinary wages, taxed at the margin.
Why is the after-tax number different from what my paycheck shows?
Three usual reasons: your state withholds its own income tax (this page is federal-only until the state table further up), you contribute to a 401(k) or an HSA, or your W-4 asks for extra withholding. The $24,500 401(k) limit for the year matters most: pre-tax contributions cut federal taxable income but not Social Security or Medicare.
What is $18 an hour in monthly and biweekly terms?
Monthly gross is $3,120 and monthly take-home is $2,689. Biweekly gross is $1,440 and biweekly take-home is $1,241 — that is the number that matches most pay stubs, since 26 checks a year is not 24.
Sources
- IRS Publication 15 (Circular E) — federal withholding tables and FICA rates.
- Social Security Administration — annual wage base for Social Security withholding.
- US Department of Labor, Wage and Hour Division — FLSA overtime at 1.5× above 40 hours.
- State income tax brackets from each state's published 2026 table; the three states above are linked, and all 51 jurisdictions are in the state index.
Single filer, standard deduction, no pre-tax contributions, no credits beyond the standard deduction. Educational estimate, not tax advice.