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United States · 6 min

How US state and local sales tax works

The correct rate can depend on state, county, city, special district, product and sourcing rules.

Use the US Sales Tax Calculator →

Sales tax is location-specific

A purchase can be affected by a state rate plus county, city or special-district additions. Some places have no general sales tax, while other locations combine several layers.

Product taxability also varies

A correct percentage alone is not enough when groceries, clothing, digital products, services or medicines receive different treatment. Exemptions and sales-tax holidays can also apply.

Adding and removing tax

To add tax, multiply the pre-tax amount by the combined rate. To reverse an inclusive total, divide by one plus the decimal rate; subtracting the headline percentage from the total is not equivalent.

Use an authoritative local rate

Confirm the applicable rate and sourcing rule with the state revenue agency or local authority. Ezivo Calculator accepts that verified rate and performs the arithmetic without claiming to determine nexus or taxability.

Common questions

Frequently asked questions

Why is there no single US sales-tax rate?+

Sales tax is imposed by state and local jurisdictions rather than as one nationwide federal rate.

Where should I confirm the rate?+

Check the relevant state revenue agency and local government guidance for the transaction location.

Official source and scope

USAGov: state and local taxes

This guide explains general rules and does not replace personalised tax, financial, employment or legal advice. For exact filing, payroll, lending or compliance decisions, use the official source and professional guidance where needed.