API for developers


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Comprehensive Coverage

Full support of U.S. Federal and all 50 states including city and county jurisdictions. Excise, Sales & Use tax for tobacco, fuel, alcohol, and other products

Tax Updates

Continually updated tax rules and rates for all taxable jurisdictions in the U.S.


Automated Reporting

Get jurisdiction-level tax reporting in every state to make indirect tax tracking and filing simple.

Easy to use API

Tax Determination uses modern, RESTful APIs. Look at provided examples to see how easy it is to implement.

Benefits of Using Avior Tax Engine:

  • Ensure tax compliance, eliminate tax errors and penalties
  • Reduce IT development and Tax Accounting costs
  • Experienced and dedicated customer support team
  • Cloud solution, works with all major ERPs, low-cost, monthly fee