VAT / GST / Sales Tax Calculator
Add or remove VAT, GST, or sales tax from prices for any country or custom rate.
Calculation Inputs
Calculation Results
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Enter inputs on the left and click Calculate to view results.
Formula & Methodology
Add: Tax = Amount × Rate%; Extract: Tax = Amount × Rate / (100 + Rate)
Quick-reference VAT rates: UK 20%, EU average 21%, Canada GST 5%, Australia GST 10%, India GST 18%.
Frequently Asked Questions
How do I calculate VAT from a tax-inclusive price?
For 20% VAT: Tax = Inclusive Price × 20/120 = 16.67% of inclusive price. Exclusive = Inclusive / 1.20.