Sales Tax / VAT Calculator
Tax amount and gross price from price and tax rate.
How it works
Tax = net × rate ÷ 100; gross = net + tax
Sales tax / VAT is charged as a percentage. China’s VAT rates are commonly 13%, 9% and 6%. Mind the net vs gross direction.
FAQ
How to get tax from a gross price?
Tax = gross ÷ (1 + rate) × rate. E.g. gross 113 at 13%: tax = 113 ÷ 1.13 × 0.13 = 13.
Worked example
Net price 100 at 13%: tax = 13, gross = 113.
Reverse: from a gross of 113, the net is 113 ÷ 1.13 = 100 — not 113 minus 13%.
Notes and limitations
The classic error is multiplying the gross by the rate — that taxes the tax. Divide first, then subtract (or divide by 1 + rate). Cross-border purchases add duty on top of VAT.