Sales Tax & VAT Calculator
Add sales tax or VAT to a price, or remove it from a tax-inclusive total. Instantly see the tax amount, the net pre-tax price and the gross price.
About Sales Tax & VAT Calculator
The sales tax and VAT calculator works in both directions. In add mode it puts tax on top of a net, pre-tax amount; in remove mode it backs the tax out of a tax-inclusive total. Either way you see the tax amount, the net price and the gross price.
Adding tax is straightforward multiplication, but removing it is where people slip: a 20% VAT is not removed by subtracting 20%. The tool divides the gross by 1 plus the rate — the correct reverse-VAT calculation — so the extracted tax matches what was originally charged.
It is useful for invoicing, checking receipts, quoting prices tax-inclusive or tax-exclusive, and bookkeeping. A single rate is applied to the whole amount, and small rounding differences from a printed receipt are normal.
How to use Sales Tax & VAT Calculator
- Choose the mode: add tax to a net amount, or remove tax from a gross total.
- Enter the amount — pre-tax in add mode, tax-inclusive in remove mode.
- Set your tax or VAT rate as a percentage.
- Read the tax amount, the net (pre-tax) figure and the gross (with tax) figure.