Free Financial Calculators — MintyVault

See exactly how much you save on self-employment tax by converting your LLC to an S-Corp. Uses 2026 IRS wage base.

Find your IRS-defensible salary range by profession using BLS benchmarks. Includes risk assessment and salary slider.

Calculate federal, state, and FICA tax savings from your Health Savings Account. Includes 20-year investment projection.

Estimate your annual property tax by home value, assessment ratio, local rate, and exemptions. Includes all-50-states rate table.

See your exact bi-weekly, semi-monthly, or monthly take-home pay after federal, SS, Medicare, and state withholding.

Calculate payback period, 25-year ROI, and CO₂ offset from solar panels. Includes 30% federal IRA tax credit and state-by-state sun hours.

Compare true ownership costs — fuel, maintenance, incentives, and CO₂ — between electric and gas vehicles. Includes 10-model EV reference table.

Estimate annual energy savings and payback period from upgrading your home insulation R-value using DOE heat-transfer formulas.

Project your nest egg, monthly retirement income (4% rule), and inflation-adjusted value. Includes contributions vs growth breakdown.

See your exact payoff date, total interest paid, and how extra payments change everything. Covers all debt types.