Paycheck Calculator (2026)

How a paycheck estimate is built

Most people do not think in annual tax tables when a job offer lands—they think in biweekly deposits. This calculator annualizes your salary, removes the pre-tax pieces you enter (401(k)% and health premiums), estimates annual federal income tax with the shared federal engine, divides that tax across pay periods, then layers employee FICA for the period (with optional year-to-date wages so the Social Security wage base and Additional Medicare Tax behave correctly late in the year).

That order matters. Pre-tax retirement and health premiums reduce both the federal income-tax base and, in typical cafeteria plans, the Social Security and Medicare wage base. A 5% traditional 401(k) is not just “savings”—it is also a small paycheck-tax cut that compounds every period.

2026 payroll figures that matter

• Social Security employee rate: 6.2% up to $184,500
• Medicare employee rate: 1.45% on all wages
• Additional Medicare Tax: 0.9% above $200,000 single / $250,000 married filing jointly / $125,000 married filing separately

Those payroll numbers come from SSA’s 2026 COLA materials and the statutory Additional Medicare thresholds. Income-tax brackets and the standard deduction still come from IRS Rev. Proc. 2025-32 when the engine annualizes federal tax.

Pay frequency, annualization, and stub math

Annual salary ÷ periods = period gross. Annual federal tax ÷ periods = period federal withholding estimate. FICA is computed on the period’s Social Security and Medicare wages, not by blindly dividing annual FICA—because the wage base can cut off mid-year.

If you already earned a large YTD salary, enter it. Crossing $184,500 of Social Security wages means later paychecks should stop withholding the 6.2% slice even though Medicare continues. High earners who ignore YTD often overstate late-year FICA.

Worked example

Take an $85,000 salary, biweekly pay, single, 5% traditional 401(k), $75 health premium per paycheck, tax year 2026. Gross per period is about $3,269. After 401(k) and health, taxable wages for federal/FICA drop. Federal tax is annualized then split across 26 periods, and FICA applies to the period’s Social Security and Medicare wages.

Flip on “Compare 2025 vs 2026” to see whether inflation-adjusted brackets and the higher 2026 standard deduction change net pay on identical inputs. For many middle-income W-2 households the year-over-year change is modest per paycheck—but it still shows whether COLA-style bracket moves are helping or whether a raise is doing all the work.

Withholding vs true liability

Employers withhold using Publication 15-T methods and your Form W-4. This calculator approximates annual liability and spreads it. Those two approaches usually land near each other for simple single-job wages, and they diverge when you have:

• Two jobs, each withholding as if it were the only job
• Large bonuses taxed under supplemental methods
• Side 1099 income with no withholding
• A W-4 that still reflects last year’s life (marriage, new dependent, second job)

When the gap shows up, use the W-4 withholding calculator to translate an annual shortfall into extra dollars per remaining paycheck. Freelancers should also check the quarterly estimated tax calculator.

Pre-tax levers that change take-home

Traditional 401(k) deferrals and many health premiums reduce taxable wages immediately. Roth 401(k) deferrals do not—they come from after-tax pay even though growth can be tax-free later. HSA payroll contributions (when offered) are another triple-tax-advantaged lever; confirm limits with the HSA calculator and the contribution limits maximizer.

If you are choosing between a higher salary in a high-tax state and a slightly lower salary in a no-income-tax state, do not stop at this federal paycheck view. Run the job offer comparison so state tax enters the net.

Edge cases

• Multiple jobs: each employer withholds as if it were your only job unless you adjust Form W-4—annual liability can still be higher.
• Bonuses: supplemental withholding methods differ from regular wages; use the bonus tax calculator.
• Severance: usually wages for income and FICA—see the severance tax calculator.
• Self-employment: SE tax is not employee FICA—use the self-employment tax calculator.
• Equity vesting (RSUs): FMV at vest is ordinary wage income; use the RSU tax calculator.

Reading the results without fooling yourself

Net pay is not “what you can spend forever.” It ignores retirement goals, emergency savings, and employer benefits that do not hit the stub as cash. A job with a slightly lower net but a 5% match and lower commute cost can win on total compensation.

Also remember: federal refund math is annual. A healthy biweekly deposit can still hide an April bill if your W-4 under-withheld relative to bonuses or side income. The tax refund estimator is the year-end counterpart to this paycheck view.

Where to go next

Tune annual liability with the federal income tax calculator. Stress-test withholding with the W-4 withholding calculator. Add state take-home with the state income tax and job offer comparison tools. If you are converting salary to hourly for a contract bid, use the salary to hourly calculator.

Negotiating offers with net pay in mind

Gross salary is the number that shows up in offer letters. Net pay is what hits checking. When two offers differ by $10,000 of gross, run both through this calculator with the same filing status and similar benefit elections. Then add state tax with the job offer comparison if the cities differ.

Also price benefits that never appear as cash: 401(k) match, HSA employer contributions, commute, and health plan actuarial value. A lower net paycheck with a rich match can still win over five years—pair this tool with the 401(k) calculator before you walk away from an “inferior” stub.

Mid-year raises, bonuses, and catch-up withholding

A July raise changes the remaining periods, not the ones already paid. Re-run the calculator with the new salary and fewer periods remaining if you are projecting year-end withholding. Bonuses may use a flat supplemental rate that looks harsh on the stub even when your annual marginal rate is lower—or the reverse. The bonus tax calculator isolates that supplemental path.

If you under-withheld early and got a raise late, Form W-4 Step 4(c) extra withholding is often the cleanest fix. Translate the annual gap into a per-paycheck amount with the W-4 withholding calculator rather than guessing.

Garnishments, local taxes, and other stub lines

This engine focuses on federal income tax and employee FICA. City wage taxes, school district taxes, disability insurance premiums, union dues, and garnishments are real and can dwarf small federal differences. If your stub shows large “other” deductions, subtract them mentally from net before you treat the calculator output as spendable cash.

Hourly, salary, and contract conversions

Contractors sometimes quote an hourly rate that looks higher than a salary until SE tax and unpaid benefits show up. Use the salary to hourly calculator and the W-2 vs 1099 comparison when you are deciding whether a contract premium is real. Self-employment tax alone (Social Security and Medicare equivalent) is a large wedge that paycheck FICA only half-captures on the employee side.

Year-to-date wages and the Social Security wage base

Social Security tax applies at 6.2% only until cumulative wages hit $184,500 in 2026. If you enter year-to-date Social Security wages, this calculator stops the 6.2% slice on later paychecks once the base is exhausted—Medicare at 1.45% continues with no cap. Missing YTD is the main reason late-year net pay looks wrong in DIY estimates.

Example: $170,000 YTD through November plus $8,000 per biweekly check. Only $14,500 of base remains before the 6.2% employee slice drops off mid-check. Additional Medicare Tax at 0.9% may also apply once wages cross $200,000 single / $250,000 joint / $125,000 MFS. See the FICA calculator for a dedicated payroll-tax view.

Pre-tax and post-tax deductions on the stub

Traditional 401(k), health premiums, dental, vision, FSA, and HSA (when via cafeteria plan) usually reduce federal and FICA wages together. Roth 401(k), Roth IRA via payroll (rare), union dues, and garnishments generally do not reduce income tax withholding the same way—check your plan document. Post-tax deductions shrink net pay but leave taxable wages unchanged.

Health insurance premiums of $200 per biweekly period reduce annual taxable wages by $5,200—run the same salary with and without that line to see federal and FICA savings. HSA limits for 2026 are $4,400 self-only and $8,750 family, plus $1,000 catch-up at 55+.

Variable hours, overtime, and part-year employment

Hourly workers with overtime should annualize carefully: use YTD gross divided by weeks elapsed, then multiply by 52, or enter expected total year wages if seasonality is predictable. Starting a job in March means fewer periods—do not multiply one stub by 26 without adjusting for actual pay dates remaining.

Compare 2025 vs 2026 using the built-in toggle when available: bracket indexing and the higher 2026 standard deduction ($16,100 single, $32,200 joint) can nudge net pay even when gross is flat. Pair with the tax year comparison for liability-focused year-over-year math.

Semimonthly vs biweekly gotchas

Semimonthly pay (24 periods) and biweekly pay (26 periods) produce different per-period amounts on the same annual salary. Biweekly workers get two extra checks in most years compared to semimonthly—annualizing with 24 when you are paid biweekly understates per-check gross. Some years include 27 biweekly pay dates; confirm with payroll.

Overtime and hourly workers should enter expected annual gross rather than multiplying one heavy overtime stub by 52 unless hours are steady year-round.

Benefits that never hit the stub

Employer-paid health premiums (non-cafeteria), life insurance under $50,000, and employer 401(k) match improve total compensation without increasing net pay. A $90,000 offer with 6% match and fully employer-paid health can beat $98,000 with employee-paid premiums—compare total comp, not net alone.

Stock options and RSUs affect future tax, not current base paycheck, until vesting. Use the RSU tax calculator when equity is part of the offer.

Local taxes and garnishments

City wage taxes (Philadelphia, NYC, Detroit, Ohio municipalities) reduce net beyond this federal-focused view. Court-ordered garnishments and child support come off after tax calculations in most states. If local tax is material, budget manually until a local engine is available.

Pay stub reconciliation checklist

Compare calculator net to your stub line by line: gross, 401(k), health, federal, Social Security, Medicare, state, local, and other. Small differences often trace to employer-specific rounding, fringe benefits, or YTD caps. Large gaps usually mean wrong filing status, missing pre-tax deductions, or ignored bonus withholding method.

New hires and waiting periods

Benefits may not start on day one—health premiums and 401(k) deferrals ramp mid-quarter. First paycheck looks higher than steady-state net until elections take effect. Re-run after open enrollment when HDHP and HSA contributions begin.

Sources and methodology

Federal annualization uses the same ordinary-tax engine as the federal income tax calculator (Rev. Proc. 2025-32 figures). Employee FICA uses SSA’s 2026 wage base of $184,500 and statutory Medicare / Additional Medicare rates. Results are educational estimates in integer cents with a visible calculation path—not a replacement for your employer’s payroll system or Publication 15-T withholding tables.