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Sales Tax Calculator

Add or remove sales tax with your state's average rate or your own.

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Sales Tax Calculator

Add or remove sales tax, or find the rate

$

Pick a state for its average combined state and local rate.

%

Price after tax

$107.25

Price before tax
$100.00
Sales tax (7.25%)
$7.25

How it was calculated

  1. Tax = $100.00 × 7.25% = $7.25
  2. Total = $100.00 + $7.25 = $107.25

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How the sales tax calculator works

Sales tax is a percentage added at checkout: total = price × (1 + rate). To take tax back out of a total, divide by (1 + rate) rather than subtracting the rate, since the tax was charged on the lower pre-tax price.

US sales tax is set by states, counties and cities, so the rate varies by address. The state list uses each state's average combined state and local rate. Delaware, Montana, New Hampshire and Oregon have no statewide sales tax; Alaska has local taxes only.

Using and checking your result

Published by JustYourCalculator. Check the units and assumptions above, and compare a known example before relying on the output. Calculations use browser arithmetic and may round displayed values.

This is an educational estimate, not a lender quote, tax filing calculation or investment recommendation. Actual costs depend on current rules, fees and your circumstances. Verify important decisions with official sources and a qualified adviser.

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Frequently asked questions