Free money calculators

9 calculators so far, built to show their working. Every figure comes from the IRS, the SSA or the institution that sets it, and each page states what it leaves out.

Income & tax

Retirement

Home & mortgage

Saving & investing

Debt

Income & benchmarks

More on the way

The US set is new and growing. Mortgage, capital gains, Roth versus traditional and state-by-state tax are next. Our Canadian site has 25 calculators if you are north of the border.