Semi-Monthly Paycheck Calculator
401(k), HSA, and health premiums
Your semi-monthly take-home pay is about
$2,443.82 /paycheck
$3,125.00 gross − $681.18 withheld, across 24 paychecks — $58,652 a year
| Line item | Per paycheck | Per year |
|---|---|---|
| Gross pay | $3,125.00 | $75,000 |
| Pre-tax deductions | $0.00 | $0 |
| Federal income tax | -$319.58 | -$7,670 |
| California income tax | -$122.54 | -$2,941 |
| Social Security (6.2%) | -$193.75 | -$4,650 |
| Medicare | -$45.31 | -$1,088 |
| Net take-home pay | $2,443.82 | $58,652 |
Estimate for tax year 2026 using IRS federal brackets, the standard deduction for your filing status, and Tax Foundation state brackets. It applies only the standard deduction — personal exemptions and tax credits are ignored, so the real number is usually a little higher. Local income taxes (New York City, Maryland counties, Ohio municipalities) are not included, and head-of-household filers are estimated with single-filer brackets at the state level. Not tax advice.
Semi-Monthly vs Biweekly, in Plain English
Semi-monthly means twice a month, on two fixed dates — usually the 15th and the last day. That is 24 paychecks a year, two in every month, always. Biweekly means every other week, on a fixed weekday, which works out to 26 paychecks because 52 weeks ÷ 2 = 26.
Splitting the same salary into 24 pieces instead of 26 makes each piece bigger. On a $75,000 salary the semi-monthly check is $3,125.00 gross against $2,884.62 biweekly — $240.38 more, or 8.3%. Nobody is earning more. The year ends at the same place.
| On a $75,000 salary | Semi-Monthly | Biweekly |
|---|---|---|
| Paychecks a year | 24 | 26 |
| When you are paid | Two fixed dates — usually the 15th and the last day | The same weekday every other week |
| Gross per paycheck | $3,125.00 | $2,884.62 |
| Take-home per paycheck | $2,566.35 | $2,368.94 |
| Months with an extra paycheck | None — always two | Two months a year get three |
| Take-home a year | $61,593 | $61,593 |
Take-home figures are for a single filer in a state with no income tax. If your employer pays every other week instead, the biweekly paycheck calculator runs the same withholding across 26 periods.
What Comes Out of Every Paycheck
Gross pay is salary ÷ 24. Four things stand between that and the deposit, withheld in this order:
- Pre-tax deductions — traditional 401(k) contributions, HSA contributions, and most health insurance premiums. These come out first and shrink the income the IRS ever sees.
- Federal income tax — charged on what remains after the standard deduction, at rates that climb through seven brackets. Payroll uses the IRS semi-monthly withholding table, which is simply the annual figure divided into 24 slices.
- State income tax — anywhere from nothing to over 10%, depending entirely on where you live. This is the single line item that swings most between two otherwise identical offers.
- FICA: Social Security and Medicare — 6.2% for Social Security on the first $184,500 of 2026 wages, plus 1.45% for Medicare on every dollar. FICA is levied on gross wages, so a 401(k) contribution does not reduce it.
The withholding table in the calculator above shows each of these per paycheck and per year, so you can check a real pay stub line by line. Deductions that are not pre-tax — Roth 401(k) contributions, union dues, garnishments — come out after tax and reduce the deposit without reducing the tax.
Semi-Monthly Take-Home Pay by Salary
Gross and net per paycheck for a single filer in a state with no income tax — the clean baseline. Add your own state above and every net figure drops.
| Annual Salary | Gross per Check | Federal Tax | FICA | Net per Check | Net per Month |
|---|---|---|---|---|---|
| $40,000 | $1,666.67 | −$109.17 | −$127.50 | $1,430.00 | $2,860 |
| $50,000 | $2,083.33 | −$159.17 | −$159.38 | $1,764.79 | $3,530 |
| $60,000 | $2,500.00 | −$209.17 | −$191.25 | $2,099.58 | $4,199 |
| $70,000 | $2,916.67 | −$273.75 | −$223.13 | $2,419.79 | $4,840 |
| $75,000 | $3,125.00 | −$319.58 | −$239.06 | $2,566.35 | $5,133 |
| $80,000 | $3,333.33 | −$365.42 | −$255.00 | $2,712.92 | $5,426 |
| $90,000 | $3,750.00 | −$457.08 | −$286.88 | $3,006.04 | $6,012 |
| $100,000 | $4,166.67 | −$548.75 | −$318.75 | $3,299.17 | $6,598 |
| $120,000 | $5,000.00 | −$732.08 | −$382.50 | $3,885.42 | $7,771 |
| $150,000 | $6,250.00 | −$1,030.58 | −$478.13 | $4,741.29 | $9,483 |
Working from a weekly wage rather than an annual salary? Convert it first with the weekly to annual salary calculator, then bring the yearly figure back here.
Budgeting on Exactly Two Paychecks a Month
This is the real advantage of a semi-monthly schedule, and it is worth more than the larger check. Every month contains two paychecks, so every month delivers the same amount: $5,132.71 on our $75,000 example, which is exactly one twelfth of annual take-home. Rent, insurance, and loan payments are monthly too, so income and outgoings line up without arithmetic.
Biweekly pay does not line up. Ten months of the year bring two checks — $4,737.88, about $394.82 short of the semi-monthly month — and two months bring three, at $7,106.83. The year totals the same $61,593, but ten months run a little tight and two feel like a windfall.
The practical move on a semi-monthly schedule is to assign fixed bills to a specific check: the 15th covers rent and utilities, the month-end check covers everything else. Since both checks are the same size and both dates are known a year in advance, the split holds all year. To sanity-check the monthly figure against a job offer quoted per month, the monthly to annual salary calculator works the conversion in reverse.
Frequently Asked Questions
How many paychecks are in a semi-monthly year?
Twenty-four. Semi-monthly means twice a month, so two paychecks in each of the twelve months, every year, no matter how the weekdays fall. Most employers pay on the 15th and the last day of the month, though the 1st and the 16th are also common.
How do I calculate my semi-monthly paycheck?
Divide your gross annual salary by 24 to get gross pay per paycheck, then subtract pre-tax deductions, federal income tax, state income tax, Social Security, and Medicare. On a $75,000 salary that is $3,125.00 gross per check, and about $2,566.35 lands in the account of a single filer in a state with no income tax.
What is the difference between semi-monthly and biweekly pay?
Semi-monthly pays twice a month on fixed dates — 24 checks a year. Biweekly pays every other week on a fixed weekday — 26 checks a year, with two months holding a third check. At the same salary the semi-monthly check is larger, because the same annual pay is split into fewer pieces: $3,125.00 against $2,884.62 on a $75,000 salary. Over a year the two schedules pay exactly the same amount.
Is semi-monthly the same as bimonthly?
No, and the two words are confused constantly. Semi-monthly means twice a month, so 24 paychecks a year. Bimonthly literally means every two months, which would be six paychecks a year — a schedule no US employer uses for wages. If a job posting says bimonthly, it almost always means semi-monthly.
Why does each semi-monthly paycheck cover a different number of workdays?
Because months are not the same length. A period running from the 1st to the 15th might contain 10 workdays while the 16th to the 31st contains 12. Salaried employees do not notice, since the paycheck is a fixed twenty-fourth of salary either way. Hourly staff do, which is why semi-monthly is rarer for hourly jobs: federal overtime is calculated on a fixed seven-day workweek, and semi-monthly periods cut those workweeks in half.
Do I pay more tax on a semi-monthly schedule?
No. Pay frequency changes when money is withheld, not how much you owe. The IRS publishes a separate withholding table for each payroll period, so a semi-monthly check has more tax withheld than a biweekly one in the same way it has more gross pay. Your annual tax bill is identical either way.
What happens when payday falls on a weekend or holiday?
Most employers move it to the preceding business day, so a 15th that lands on a Sunday is paid on the Friday the 13th. That is a payroll convention rather than a federal rule, so check your employer's policy — some pay on the following business day instead, and direct deposits do not settle on weekends or bank holidays either way.