Sales Tax Calculator (with Custom Rates)

Sales Tax Calculation
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Understanding US Sales Tax

State State Rate Avg Local Rate Combined Rate
California 7.25% 1.57% 8.82%
Texas 6.25% 1.94% 8.19%
New York 4.00% 4.49% 8.49%
Florida 6.00% 1.05% 7.05%
Alaska 0.00% 1.76% 1.76%
Delaware 0.00% 0.00% 0.00%

You can override the default tax rates by:

  1. Checking "Use Custom Tax Rates"
  2. Entering your specific rates for state, county, and city
  3. The calculator will use your custom rates instead of default rates

Note: This is useful when you know the exact tax rates for a specific location that may not be in our database.

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Highest Tax Jurisdictions
Location Combined Rate
Chicago, IL 10.25%
Los Angeles, CA 9.50%
Seattle, WA 10.10%
New York City, NY 8.875%
Birmingham, AL 10.00%
Tax-Free States
  • 1. Alaska (no state tax)
  • 2. Delaware
  • 3. Montana
  • 4. New Hampshire
  • 5. Oregon
Note: Alaska allows local sales taxes (avg 1.76%). Delaware and NH have no sales tax at all.
When to Use Custom Rates
  • • Special district taxes
  • • Temporary tax changes
  • • Unincorporated areas
  • • New tax jurisdictions
  • • Tax-exempt scenarios