Free Financial Calculators
Powered by a comprehensive tax engine covering all 50 states + DC. No login required.
Tax Refund Estimator
Estimate your federal and state tax refund or amount owed. Full bracket calculation with credits, deductions, FICA, and withholding.
Tax BracketsTax Bracket Calculator
See exactly which 2026 federal and state tax brackets your income falls in. Visualize progressive brackets with marginal and effective rates.
PayrollPaycheck Calculator
Calculate your take-home pay after federal, state, Social Security, and Medicare taxes. See your net pay per paycheck and annually.
WithholdingW-4 Withholding Optimizer
Stop giving the IRS an interest-free loan. We compute your exact tax and tell you what to put on your W-4 to keep more per paycheck.
Retirement401(k) Contribution Optimizer
Find your optimal 401(k) contribution. Maximize employer match, compare Roth vs Traditional, and see tax savings at every level.
RetirementRMD Calculator
Calculate Required Minimum Distributions from IRAs and 401(k)s. Uses IRS Uniform Lifetime Table with SECURE 2.0 start ages.
RetirementRoth Conversion Break-Even
See exactly when a Roth conversion pays off. Models tax cost today vs. tax-free growth, including IRMAA surcharges and state taxes.
MedicareIRMAA Medicare Surcharge Calculator
Find your Medicare Part B & Part D surcharges based on income. See each IRMAA cliff and how much you'd save by staying below it.
State TaxesState Tax Comparison
Compare state income taxes side by side. Enter your income and see the exact difference between any two states — all 50 + DC.
InvestmentsCapital Gains Tax Calculator
Calculate tax on investment gains with proper bracket stacking. Includes NIIT (3.8%), qualified dividends, short-term gains, and state taxes.