Sales Tax and Reverse Sales Tax Calculator

Add sales tax to a subtotal or extract tax from a tax-inclusive total.

Rates and taxable items vary by state and locality. Replace any planning rate with the rate that applies to the transaction.

Your inputs

Your result

Enter your information and select Calculate to see the result.

How this calculator works

Forward tax multiplies the subtotal by the rate. Reverse tax divides a tax-inclusive total by one plus the rate.

Change one assumption at a time to see which inputs have the greatest effect on the estimate.

Worked example

$100 at 8% tax produces an $108 total.

Limitations

This tool does not determine whether a product, service, or jurisdiction is taxable. Editorial review approved for initial publication; review periodically as assumptions change.

Review this educational estimate against current quotes, official information, and your own budget before making a financial decision.