Sales tax & VAT calculator

How it works

Choose whether to add tax to a price before tax, or to remove it from a price that already includes tax, then enter the rate.

The formula

Add tax: total = price × (1 + rate). Remove tax: price before tax = total ÷ (1 + rate); tax = total − price before tax.

Worked example

At 15% VAT, a 200 item costs 200 × 1.15 = 230. A receipt of 230 including VAT contains 230 − 230 ÷ 1.15 = 30 of tax.

Good to know

• Rates differ by country: for example 15% in Saudi Arabia and 5% in the UAE, Bahrain and Oman (check current rates).
• Removing tax is not the same as subtracting the rate from the total: 230 × 15% = 34.5 is wrong.