Free financial calculators
Single-question tools that answer one thing clearly and show their work. Everything runs in your browser — your numbers never touch our servers.
Real estate
1031 Exchange Boot Calculator
How much of your like-kind exchange is taxable boot, and the gain you defer.
Rental Property Calculator
Cap rate, cash-on-cash, DSCR, year-1 cash flow — with a goal-seek solver.
Rental Depreciation + Passive-Loss
Annual depreciation and how much passive loss is usable vs suspended this year.
Retirement
IRMAA / Medicare Surcharge
Which IRMAA tier your MAGI lands in and the annual Part B + D surcharge.
Roth Conversion Window
How much you can convert before topping out a bracket, and the tax cost.
RMD Calculator
This year's required minimum distribution and your SECURE 2.0 start age.
Social Security Breakeven
Benefit at 62 / FRA / 70 and the age where claiming late pulls ahead.
Social Security Tax Torpedo
What share of your benefits becomes taxable as income crosses the thresholds.
Retirement Monte Carlo
Will your money last? Success rate over your horizon, simulated in-browser.
Equity comp