Location & Data

Sales Tax by ZIP Calculator

Estimate sales tax from a U.S. ZIP code using its state rate and 2026 statewide average local rate.

Free online toolWorks in your browserNo sign-up required
Explore this category

Location & Data

ZIP, price-level, currency and geographic data tools.

Category hub →

How to use this sales tax by zip calculator

Enter the requested values above and select Calculate. Change the inputs to compare scenarios.

Formula and method

Estimated combined rate = state rate + average local rate, unless you enter a local-rate override.

Example

Enter a ZIP and purchase amount to estimate tax using the ZIP’s state and the latest embedded 2026 state/local averages.

What this calculator is useful for

Estimate sales tax from a U.S. ZIP code using its state rate and 2026 statewide average local rate.

Frequently asked questions

What does this calculator do?

Estimate sales tax from a U.S. ZIP code using its state rate and 2026 statewide average local rate.

What data or formula does it use?

State and average local sales-tax rates are from Tax Foundation’s July 1, 2026 table. Exact city/county/district rates and taxability rules vary, so this is an estimate rather than a filing-grade rate lookup.

Is it free?

Yes. ERICH Calculators is free to use and no account is required.

Source & assumptions

Reference and limitation

State and average local sales-tax rates are from Tax Foundation’s July 1, 2026 table. Exact city/county/district rates and taxability rules vary, so this is an estimate rather than a filing-grade rate lookup.

Transparency

Method, assumptions & corrections

See how formulas, sources and limitations are handled across ERICH Calculators.