Which calculator do I need?
- Paycheck calculator — what you actually take home each payday after federal and state income tax, Social Security, Medicare and your 401(k), with a dedicated page for each state (for example California, Texas and New York).
- State income tax comparison — every state side by side for your salary, from no-tax states to the highest, with take-home pay after all deductions.
- Federal income tax calculator — your total tax for the year, your effective and marginal rate, and how much falls into each bracket.
- FICA tax calculator — Social Security and Medicare on your wages, the 2026 wage-base cap and what your employer pays on top.
- Self-employment tax calculator — the 15.3% Social Security and Medicare tax freelancers and 1099 workers pay, plus the deductible half.
- Salary to hourly calculator — convert a yearly salary to an hourly wage and every pay period in between.
- Home affordability calculator — how much house your income supports under the 28/36 rule.
- Mortgage calculator — the full monthly house payment including property tax, insurance, PMI and HOA, plus an amortization schedule.
- Compound interest calculator — how savings and investments grow with monthly contributions.
How we keep the numbers right
Tax figures change every year. Ours come straight from IRS revenue procedures and Social Security Administration announcements — not from other calculator sites — and live in a single versioned data file per tax year, so every page updates together when the IRS publishes new figures. Every calculator lists what it includes and what it leaves out, so you know when you need a professional instead.