Sales Tax & VAT Calculator
Add tax to a net price or pull tax out of a gross price. Enter the amount and rate to see the tax amount and the other figure instantly.
Add tax or pull it back out
Sometimes you have a net price and need the total with tax. Other times you have a gross total and need to know the tax inside it, for example to record it on an invoice. This calculator does both. Switch the mode and it either adds tax to a net amount or extracts the tax from a gross amount.
Removing tax is not the same as subtracting it
To pull tax out of a gross price you divide by one plus the rate, you do not just subtract the rate. A 216 dollar total at 8 percent tax contains 16 dollars of tax and a 200 dollar net, not 17.28 dollars. Getting this wrong throws off your bookkeeping. The remove mode handles it correctly so your records stay clean.
How to use it
Pick add or remove. Enter the amount and the tax or VAT rate. The tool shows the total, the tax amount, and the base figure. Use it for quoting prices, checking receipts, or preparing invoices. To build a full invoice with tax, try the Invoice Generator.
Frequently Asked Questions
How do I add sales tax to a price?
Multiply the net price by the tax rate to get the tax, then add it to the price. The add mode does this for you.
How do I find the tax inside a gross price?
Divide the gross price by one plus the rate to get the net, then subtract to find the tax. The remove mode handles it.
Does it work for VAT and GST?
Yes. The math is the same for any percentage-based sales tax, VAT or GST. Just enter your local rate.
Is it free?
Yes, free and private.