🧾 Sales Tax Calculator

A sales tax calculator quickly adds or removes tax from any price. Enter your pre-tax or post-tax amount and your state or country tax rate to instantly calculate how much tax you owe. Supports US state taxes, Canadian GST/HST/PST, UK VAT, and Indian GST.

🇺🇸 Calculating for United States

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Pre-tax amount (USD)

State

Pre-tax price

$100.00

Sales Tax (7.25%)

$7.25

Total

$107.25

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Frequently asked questions

How do I calculate sales tax?▾

Multiply the pre-tax price by the tax rate (as a decimal). For example, $100 × 0.08 = $8 tax, so the total is $108.

How do I reverse-calculate the pre-tax price?▾

Divide the total by (1 + tax rate). For example, $108 ÷ 1.08 = $100.

Which US states have no sales tax?▾

Alaska, Delaware, Montana, New Hampshire, and Oregon have no state sales tax (though some local taxes may apply in Alaska).

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Disclaimer: This calculator is for informational and educational purposes only. Results are estimates and not financial advice. Consult a licensed financial advisor before making financial decisions.