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US Sales Tax Calculator

Calculate state and local sales tax on purchases across all 50 US states.

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US Sales Tax Calculator

Calculate sales tax for any US state, including state and local tax rates. This calculator supports all 50 states plus Washington DC, with options for combined rates and custom local taxes.

Features

  • All 50 States: Complete database of state sales tax rates
  • Local Tax Support: Average local rates for combined calculations
  • Custom Rates: Enter your specific local combined rate
  • Tax-Free States: Identifies the 5 states with no sales tax (AK, DE, MT, NH, OR)
  • Reverse Calculation: Remove tax from tax-inclusive prices
  • Add/Remove Tax: Calculate price with tax or extract tax from total

How to Use

  1. Enter the purchase amount
  2. Select your state
  3. Choose state-only, combined (avg), or custom rate
  4. (Optional) Add additional local tax
  5. Select "Add Tax" or "Remove Tax"
  6. View the breakdown and total

Tax-Free States (No State Sales Tax)

  • Alaska (local taxes may apply)
  • Delaware
  • Montana
  • New Hampshire
  • Oregon

States with Highest Sales Tax (2026)

  • Louisiana: 9.55% (combined avg)
  • Tennessee: 9.55% (combined avg)
  • Arkansas: 9.43% (combined avg)
  • Washington: 9.29% (combined avg)
  • Alabama: 9.22% (combined avg)

Important Notes

  • Rates shown are state rates plus average local rates
  • Actual local rates vary by city and county
  • Some items are exempt from sales tax (groceries, prescriptions in some states)
  • Rates are updated regularly but check local authorities for exact rates

This calculator provides estimates for general purchases. Consult your local tax authority for specific tax information.

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