Free finance calculators

Accurate, no sign-up, and built on the same engine that powers the full SalaryIQ planning app — so they handle the cases most calculators get wrong.

Self-Employment Tax

1099 / side-business SE tax, with the W-2 wage-base offset.

Taxes

Paycheck Calculator

Take-home pay after federal tax, FICA, 401(k) and pre-tax.

Paycheck

Debt Avalanche

Debt-free date, payoff order, and interest saved vs. minimums.

Debt

Quarterly Estimated Tax

1099 / self-employed: total tax and what to set aside each quarter.

Taxes

Capital Gains Tax

Short vs long term, with the 0/15/20% breakdown. Stocks & crypto.

Taxes

More guides

Plain-English walkthroughs on taxes, withholding, and debt — see the guides.