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Business calculator

Sales Tax / VAT Calculator

Add tax to a net amount, remove tax from a tax-inclusive amount, or estimate line-item totals from a user-entered rate. This calculator does not provide official tax rates.

Mode

Use an official rate for the country, region, product and date. VAT/sales tax rules can vary by seller, buyer and product category.

How tax is calculated

To add tax: gross = net x (1 + rate / 100). To remove tax: net = gross / (1 + rate / 100). Discount is applied before tax when entered.

Inclusive versus exclusive prices

A tax-exclusive price adds tax on top of the net amount. A tax-inclusive price already contains tax, so the calculator divides by the tax factor to recover the net amount.

Example

For a net price of 100, quantity 2 and a 20% VAT rate, the net line is 200, tax is 40 and gross is 240. If 240 is VAT-inclusive, the net line is 200 and the VAT amount is 40.

What this does not cover

VAT and sales tax rules vary by country, region, seller, buyer, product category, date and invoice rules. This calculator uses only the rate you enter and is not a compliance tool.

References

Last reviewed: 2026-05-16

Before relying on this result

Use this calculator together with the formula, assumptions, limitations and examples on the page. If the topic involves health, tax, lending, investment, legal, safety or current-rate decisions, treat the number as an estimate and check the relevant primary source or professional guidance.

Calculator metadata last reviewed: 2026-05-16.