VAT Calculator

Bidirectional gross/net price ↔ VAT calculation with custom tax rate

Calculate VAT (Value Added Tax) / GST in both directions. Enter a pre-tax or post-tax price, set the tax rate, and instantly see the breakdown.

VAT Rate

Price (before VAT)

VAT Amount

Price (after VAT)

This calculator assumes a standard forward calculation (price × rate ÷ 100). For reverse VAT calculation, divide post-tax by (1 + rate%).

How to use

Select a VAT rate preset (5%, 8%, 10%, 15%, 20%, 23%, or 0%) or click "Custom" to enter any rate.
Enter the pre-tax price in the price field.
Read the calculated VAT amount and the total price including VAT — both update instantly.

Entering a pre-tax price of 200 at 20% shows VAT amount 40.00 and total 240.00.
Switching to a custom rate of 7.5% on a price of 80 gives VAT 6.00 and a post-tax total of 86.00.

Verify outputs before using in production. No warranty — see Terms.