Free Tax Calculators — No Sign-Up Required

Free Tax Calculators

Professional-grade tools to estimate your tax liability, plan quarterly payments, and analyze business financing.

Georgetown, Kentucky

4 Free Tax Calculators

All calculators use 2026 IRS federal tax rates. Updated for the current year.

1 Quarterly Tax Calculator

Estimate your quarterly estimated tax payments — federal and state — to avoid IRS underpayment penalties. Includes safe harbor rules.

  • SE Tax 15.3%
  • Safe Harbor
  • All 50 States
  • Q1–Q4 Due Dates
Open Calculator

2 Income Tax Calculator

Estimate your total annual federal and state income tax liability from W-2 wages and self-employment income with full breakdown.

  • Federal + State
  • All Income
  • Tax Breakdown
  • Effective Rate
Open Calculator

3 Federal Tax Calculator

Complete federal tax estimate covering all income types, dependents, deductions, withheld, and tax credits. Full 1040-section form.

  • All Income Types
  • Dependents
  • Tax Credits
  • Refund or Owed
Open Calculator

4 Business Loan Calculator

Calculate monthly payments, total interest, and a full amortization schedule. Includes loan-to-payment analysis showing how fast you can pay off this loan.

  • PMT Formula
  • Amortization Table
  • Total Payment
Open Calculator

These calculators provide general estimates only and should not be solely relied upon for your unique tax situation. You are strongly advised to consult with a qualified tax professional for accurate and personalized advice. Contact Katherine M. Johnson, CPA