Sales Tax Calculator
Add sales tax to a price, or work backward to find the pre-tax amount.
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Tax amount
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Total
How to use
- Enter the amount and your sales-tax rate.
- Choose whether to add tax or remove it from a tax-inclusive price.
- See the tax amount and the total.
Frequently asked questions
How do I add sales tax to a price?
Multiply the price by the tax rate (as a decimal) to get the tax, then add it to the price. This tool does it instantly.
What is reverse sales tax?
It works out the original pre-tax price from a total that already includes tax — useful for receipts and expense reports.
🔒 This tool runs entirely in your browser. Nothing you enter is uploaded, logged, or stored.
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