Money · US
Sales Tax Calculator
By the Dailycaltor team · formula-verified · last updated July 2026
Add tax to a price, or find the pre-tax amount.
Details
Formula
Tax = price × rate. Total = price + tax. To remove tax from a total, divide by (1 + rate): a $107 total at 7% is $107 ÷ 1.07 = $100 before tax.
Worked examples
- $100 at 7% → $7 tax, $107 total.
- $59.99 at 8.25% → about $4.95 tax, $64.94 total.
- Remove: $214 total at 7% → $200 before tax.
Common mistakes
- Using only the state rate and forgetting local/city tax, which stacks on top.
- Subtracting the percentage from the total to “remove” tax — you must divide by 1+rate instead.
- Assuming every item is taxable; groceries and medicine are exempt or reduced in many states.
Last updated: July 2026. Educational estimates only.
Questions
How do I calculate sales tax?
Multiply the price by the tax rate as a decimal. $80 at 7% is 80 × 0.07 = $5.60 tax.
How do I remove sales tax from a total?
Divide the total by 1 plus the rate. Switch this tool to Remove mode and it does it instantly.
Why do sales tax rates differ within a state?
Cities and counties add local tax on top of the state rate, so the combined rate depends on the exact location.
Which US states have no sales tax?
Oregon, Montana, New Hampshire and Delaware have no state sales tax; Alaska has none statewide but allows local taxes.
Is sales tax the same as VAT?
The math is similar, but VAT is charged through the supply chain while US sales tax applies only at the final sale.
Is shipping taxed?
It depends on the state and whether shipping is listed separately. Check your state rules.