How to Use This VAT / GST Calculator
This free VAT calculator and GST calculator — also called a tax-inclusive calculator, sales tax calculator, or reverse VAT calculator — lets you add or remove VAT, GST, or sales tax in a single step. Choose Tax-Exclusive to add tax to a net amount, or Tax-Inclusive to extract tax from a gross amount. Enter the amount, the applicable rate, and your currency; the tool returns net, tax, and gross plus the exact formula used. To build a formal invoice or quote, use the Invoice Generator or Quotation Generator.
Choose Calculation Type
Tax-Exclusive adds tax to a net amount. Tax-Inclusive extracts tax from a gross amount.
Enter Amount & Tax Rate
Input the amount and the applicable VAT, GST, or sales tax percentage (0–100).
Choose Currency
Ten supported currencies: USD, EUR, GBP, CAD, AUD, INR, JPY, CNY, BRL, ZAR.
Review Results
Net amount, tax rate, tax amount, and gross amount side by side, with the formula shown.
Save, Print or Export
Save a draft, print the results, or download a PDF of the calculation for your records.