Example: Total with tax 108.00. Change the values above to calculate your own.
About the Sales Tax Calculator
Choose whether your amount already includes tax. Removing tax isn't the same as subtracting the percentage: a price of 120 including 20% VAT is 100 before VAT, not 96.
How to use the Sales Tax Calculator
- Enter your numbers (or keep the example).
- The result updates instantly as you type.
- Copy the result, or copy the link: it keeps your numbers so you can share them.
How it's calculated
Adding tax: gross = net × (1 + rate). Removing tax: net = gross ÷ (1 + rate).
Features
- Instant resultsUpdates as you type.
- Shareable linkThe URL keeps your inputs.
- Reference tableCommon values on this page.
- Works offlineRuns in your browser.
Frequently asked questions
Is the Sales Tax Calculator free?
Yes, the Sales Tax Calculator is free with no sign-up, no limits and no ads covering the result.
Does it work on my phone?
Yes. It works in any modern browser on phones, tablets and computers, and keeps working offline once the page has loaded.
Last updated · Processing happens locally in your browser.