Adding vs. removing tax
Adding tax takes a net price and multiplies the rate on top: 100 at 19% becomes 19 in tax and 119 total. Removing tax does the reverse — it works backward from a price that already includes tax to find the original net amount and how much of the total is tax. Because you can't just subtract the percentage, the tool divides by one plus the rate: 119 ÷ 1.19 = 100 net.
One tool for sales tax, VAT, GST and IVA
Sales tax, value-added tax (VAT), goods and services tax (GST) and IVA all work the same way at the checkout: a percentage applied to a price. Because the rate is fully editable, this calculator handles any of them — enter your local rate whether it's a US state sales tax, a European VAT or a Latin American IVA.
Why the rate is editable
Tax rates differ by country, state and even product category, and they change over time. Rather than lock in one country's figure, this tool lets you type the exact rate that applies to you, so it stays correct everywhere and never goes out of date.
Frequently asked questions
How do I remove tax from a total?
Use the Remove tax tab and enter the tax-inclusive amount plus the rate. The tool divides by one plus the rate to recover the net price and shows how much of the total was tax.
Is this the same as a VAT calculator?
Yes. VAT, GST, IVA and sales tax are all a percentage applied to a price. Enter your local rate and the math is identical.