Add VAT or GST to a price, or work backwards to extract tax from a tax-inclusive amount using any tax rate.
How it works
The same calculation pattern works for many sales tax systems, including VAT, GST, and similar consumption taxes.
Use custom rates for your country, region, product category, or business situation.
Add tax: total = amount * (1 + rate). Remove tax: pre-tax amount = total / (1 + rate).
At 18% tax, a $100 pre-tax price becomes $118. A $118 tax-inclusive total contains $18 tax.
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Read guideFAQ
Both are consumption taxes. The terminology changes by country, but the basic calculation is similar.
Choose Remove Tax, enter the tax-inclusive amount and rate, and the calculator extracts the pre-tax price.
Yes. Enter any percentage rate in the tax rate field.
