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Sales Tax Calculator
Add or remove tax from any price.
Total with tax
$108.50
Tax amount
$8.50
Before tax
$100.00
About the Sales Tax Calculator
Free sales tax calculator. Add tax to a price or work out the pre-tax amount from a total, with any tax or VAT rate.
Everything is calculated instantly in your browser — nothing you type is uploaded or stored. Bookmark Calcooly for the next time you need it.
How to use the Sales Tax Calculator
- 1Choose whether to add tax or remove it from a total.
- 2Enter the amount and the tax rate.
- 3See the tax amount and the before/after price.
Frequently asked questions
Can it remove tax from a total?+
Yes — choose “Remove tax” to work out the pre-tax price from a tax-inclusive total.
Does it work for VAT?+
Yes. Enter any tax or VAT rate and it calculates accordingly.
Is this calculator free?+
Completely free, with no sign-up and no limits. Ads on the page keep it running.