All Calculators

Every tool here runs on the same engine: the IRS Publication 15-T percentage method for federal withholding, real 2026 state and local rules, and a full line-by-line breakdown rather than a single number. Pick the one that matches the question you have.

Paycheck calculators

Core paycheck calculators

Bonus, commission and one-off pay

Hourly and shift work

Self-employment and 1099

Converters

By pay frequency

Reference tools

Employer tools

Leaving a job

Pay changes

Tax components

Deductions and benefits

Life events

What they all have in common

Every calculator here runs the same engine. Federal income tax is computed with the Publication 15-T percentage method rather than a rough bracket estimate: your pay is annualized, adjusted for the entries on your Form W-4, run through the Standard or Step 2 Checkbox schedule for your filing status, reduced by dependent credits and divided back down to a per-paycheck figure. Social Security is applied to the annual wage base and stops when you cross it. Medicare has no cap, and the Additional Medicare Tax starts at $200,000 of wages.

State income tax uses each state's own base, deduction, exemption and rate schedule — which differ more than people expect. Colorado starts from federal taxable income; Pennsylvania taxes 401(k) contributions on the way in; Connecticut has no standard deduction at all. Local income taxes are modelled for the jurisdictions that levy them, and employee-paid disability and paid-leave premiums are shown as separate lines rather than folded into a single state figure.

All three tax years are available — 2024, 2025 and 2026 — because withholding questions are often retrospective. Note that 2025 withholding used the standard deduction announced before the One Big Beautiful Bill Act, while the 2025 return used the higher amended amounts; the methodology page explains why the two differ.

Which calculator answers which question

If the question is what will my paycheck be, start with the salary or hourly calculator. If it is why was this specific check different, the bonus, overtime and raise calculators isolate the cause. If it is should I change something, the W-4, 401(k) and HSA calculators model the change before you commit to it. And if it is should I take this job, the state comparison calculator is the one that matters, because state and local tax moves a six-figure offer by five figures a year.

Frequently asked questions