$Paycheck Calculator.

Paycheck guides

Every line on a US pay stub, explained in plain English and checked against the 2026 IRS, Social Security Administration and Department of Labor figures. Start with whichever question brought you here.

Pay stub basics

Taxes on your pay

  • What is FICA tax?

    The 7.65% pair on every US paycheck: what Social Security and Medicare take, and where each one stops.

  • What is OASDI on my paycheck?

    The line labelled OASDI or Fed OASDI/EE is Social Security. What it funds, what it costs and when it stops.

  • Are bonuses taxed at a higher rate?

    The flat 22% supplemental rate is withholding, not tax. What that means for the bonus you actually keep.

  • What is imputed income?

    Benefits you never see as cash but still pay tax on, from company life cover to a partner on your health plan.

Payroll timing

Pay and benefits

Pay problems and rights

Working out the numbers

Prefer to run the numbers?

The guides explain what each line means; the calculators work out what it costs. Start with the paycheck calculator for take-home pay in any state, or the W-4 calculator to set how much federal tax comes out in the first place.