Updated for 2025 tax year

Free US finance calculators you can actually trust.

Paycheck, mortgage, retirement, and tax calculators built on IRS and state-published data — with every formula and source shown openly.

Most searched calculator

Mortgage Calculator

Estimate your full monthly payment with principal, interest, property tax, home insurance, PMI, and HOA — plus a full amortization schedule showing every year of the loan.

Avg US 30-yr rate

~6.85%

Median home price

$420K

Down payment

20% standard

PMI threshold

< 20% down

Paycheck calculator by state

Accurate take-home pay calculators for major US states.

Why Calcora

Sourced from IRS

Every federal calculation cites the IRS Revenue Procedure it's based on. No black-box math.

State-specific

All 50 states with their actual tax brackets and standard deductions, not generic estimates.

Transparent formulas

We show the bracket math step by step so you can verify every number.