Biweekly Paycheck Calculator 2026
Calculate your take-home pay on a biweekly schedule, 26 paychecks a year, after federal, state and payroll taxes.
How this is calculated
Your employer does not settle your tax bill once a year. It withholds from every paycheck using the percentage method the IRS publishes in Publication 15-T, and this calculator runs the same steps in the same order.
Gross pay for the period is worked out first. Pre-tax deductions come off next, and this is where most free calculators go wrong: a traditional 401(k) contribution reduces the wages your income tax is figured on, but it does not reduce the wages Social Security and Medicare are figured on. A health premium, HSA or FSA contribution reduces both, because those sit inside a Section 125 cafeteria plan.
What remains is annualised, reduced by the standard deduction for your filing status, and run through the federal bracket table. Dependent credits are subtracted, then the result is divided back down to your pay period and any extra W-4 withholding is added. State tax is calculated separately on its own base with its own deduction and brackets. Post-tax items such as Roth 401(k) and garnishments come off last, and what is left is your net pay.
Biweekly is not the same as twice a month
Biweekly means every other Friday, which is 26 paychecks a year. Semi-monthly means the 15th and the last day of the month, which is 24. The annual total is identical but every individual check differs: a $78,000 salary pays $3,000 biweekly and $3,250 semi-monthly.
The difference matters for budgeting because biweekly pay drifts against the calendar. Two months a year contain three biweekly paydays, and in those months a rent payment lands against a larger deposit. Semi-monthly pay never drifts, which is why employers with monthly obligations tend to prefer it.
The 27-paycheck year
Because 26 fortnights is 364 days, a biweekly payroll gains a day each year and eventually produces a 27th payday. It happens roughly every 11 years for any given employer, depending on where their pay dates fall.
For a salaried employee an employer handles this one of two ways: keep the per-period amount and pay out an extra check, which raises your gross for that year, or divide the annual salary by 27, which makes every check slightly smaller. Withholding follows whichever choice was made, so a 27-paycheck year can change your refund even though your salary did not move. The full explainer covers both cases.
What each biweekly check is withheld against
Payroll does not know your annual income. It takes the period you are being paid, multiplies by 26, and withholds as though that were your year. That is why a bonus, an overtime week or a mid-year raise all over-withhold on the check they appear on and settle up on your return.
2026 tax rates used on this page
| Item | Rate | Limit or threshold |
|---|---|---|
| Social Security (OASDI) | 6.2% | First $184,500 of wages, maximum $11,439 |
| Medicare | 1.45% | No cap |
| Additional Medicare | 0.9% | Wages above $200,000 single, $250,000 joint, $125,000 separate |
| Federal income tax | 10% to 37% | Seven brackets, after the standard deduction |
| Standard deduction | — | $16,100 single, $32,200 joint, $24,150 head of household |
| Federal supplemental rate | 22% | Applied to bonuses under the flat method |
| Dependent credits | — | $2,000 per child under 17, $500 per other dependent |
Sources: IRS Rev. Proc. 2025-32 and the Social Security Administration 2026 announcement. Verified 17 September 2026.
2026 federal brackets
| Rate | Single | Married filing jointly |
|---|---|---|
| 10% | $0 to $12,400 | $0 to $24,800 |
| 12% | $12,400 to $50,400 | $24,800 to $100,800 |
| 22% | $50,400 to $105,700 | $100,800 to $211,400 |
| 24% | $105,700 to $201,775 | $211,400 to $403,550 |
| 32% | $201,775 to $256,225 | $403,550 to $512,450 |
| 35% | $256,225 to $640,600 | $512,450 to $768,700 |
| 37% | $640,600 and above | $768,700 and above |
Frequently asked questions
How many biweekly paychecks are in a year?
Twenty-six in most years, and 27 in occasional years when the calendar produces an extra payday. Twenty-six fortnights is only 364 days, so the payroll calendar gains a day annually and an extra payday eventually appears.
How do I calculate biweekly pay from an annual salary?
Divide the annual salary by 26. A $65,000 salary is $2,500 gross a paycheck. Take-home pay is lower once federal income tax, Social Security, Medicare, state tax and your benefit deductions come out. The calculator above shows both figures.
Which months have three biweekly paychecks?
Two months every year, and which two depends on your employer\u2019s pay calendar. Those months are worth planning around: the third check is the same size as the others, so it is effectively a month with 50% more income than your budget assumes.
Is biweekly pay better than semi-monthly?
The annual total is the same. Biweekly gives you 26 smaller, evenly spaced checks and two bonus-feeling months. Semi-monthly gives you 24 larger checks that always land on the same dates, which lines up better with rent and mortgage payments.
Why does my biweekly check change from period to period?
Common causes are overtime, a bonus, a benefit deduction that runs on a different cycle, reaching the $184,500 Social Security wage base part way through the year, or a change in hours. A 401(k) contribution set as a percentage also moves whenever gross pay moves.
Does a 401(k) percentage change my biweekly check?
Yes, and proportionally. A percentage contribution is taken from each period\u2019s gross, so it rises on an overtime or bonus check. Use the deductions section above with the percent toggle to see the effect on a single period.
Related calculators
These figures are estimates for informational purposes and are not tax advice. Actual withholding depends on your employer’s payroll system, your year-to-date wages and your specific W-4. Federal rates come from IRS Rev. Proc. 2025-32 and the SSA 2026 announcement; state rates come from each state’s own withholding guide, with the source and verification date published on every state page. Read the methodology, or see who maintains this data.