Tools / FINANCE
Sales Tax Calculator
Add tax to a net price, or back it out of a tax-inclusive total. Either direction, get the net, tax, and gross figures without the mental arithmetic.
ABOUT THIS TOOL
Sales tax and VAT trip up more store owners than they should — mostly because the maths runs in two directions. Sometimes you have a net price and need to add tax; other times you have a tax-inclusive total and need to know how much of it is tax. This free calculator does both. Flip the toggle, enter an amount and a rate, and get the net, tax, and gross figures at once — handy for pricing, invoicing, and reconciling what a customer actually paid.
How to use it
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01
Choose a direction
Add tax to a net price, or remove tax from a gross total.
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02
Enter the amount
Your net or gross figure, depending on the direction.
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03
Enter the tax rate
The applicable sales-tax or VAT percentage.
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04
Read net, tax, and gross
All three figures, updating as you type.
What people use it for
- Working out the tax to add to a quoted price
- Backing tax out of a tax-inclusive total for bookkeeping
- Pricing products so the round number lands after tax
- Checking the tax line on an invoice or receipt
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Enjoy the playbook!
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Frequently Asked
Questions
Common questions about this free tool.
Does this handle both sales tax and VAT?
Yes — the maths is identical; only the name and rate differ. Enter whatever percentage applies in your region for either.
What is the difference between tax-inclusive and tax-exclusive?
Tax-exclusive prices add tax on top at checkout (common in the US); tax-inclusive prices already contain the tax (common with VAT). The direction toggle handles both.
Is this a substitute for tax advice?
No — it is a quick arithmetic tool. Rates, nexus, and filing rules vary by jurisdiction, so confirm specifics with a qualified accountant. If tax setup on your store is the issue, our development team can configure it correctly.
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