Tax
Sales Tax / VAT Calculator
Add or remove tax (Sales Tax/GST/VAT) from gross invoice amounts for 5 major global jurisdictions.
Loading interactive interface...
Calculation Methodology & Formulas
The formula depends on the selected tax mode:
1. Add Tax Mode:
Tax Amount = Base Amount × (Tax Rate / 100)
Final Amount = Base Amount + Tax Amount
2. Remove Tax Mode:
Base Amount = Final Amount / (1 + Tax Rate / 100)
Tax Amount = Final Amount - Base Amount
Real-World Compounding Projections
Extracting 20% VAT in the UK
If you purchase a product for £240 (inclusive of 20% UK VAT), the extracted base value of the product is £200, and the VAT paid is £40.