Free online calculator
VAT Calculator
Add a supplied VAT rate to a net amount. Includes a worked example, formula and practical FAQs.
Formula: VAT = net amount × VAT rate
How to use the VAT Calculator
Add a supplied VAT rate to a net amount. Enter the price excluding VAT and the applicable percentage for the transaction.
Formula
VAT = net × rate / 100; gross = net + VAT.
Worked example
At an illustrative 20% rate, a $100 net price has $20 VAT and a $120 gross price.
Interpretation and limitations
This tool performs arithmetic only. It does not determine registration duties, applicable rates, exemptions, reverse-charge treatment or recoverable input VAT.
VAT questions
Is gross price the same as VAT?
No. Gross price includes the original net price plus VAT; VAT is only the added tax amount.
How do I extract VAT from a gross price?
Divide gross by 1 plus the decimal rate to find net, then subtract net from gross. Use the tax-inclusive price tool.
Continue your calculation
For the next step, use the Tax-Inclusive Price Calculator or the Sales Tax Calculator. Review each tool’s input definitions before carrying a result into another calculation.
Frequently asked questions
Is this calculator free?
Yes. It runs in your browser and does not require an account.
How should I use the result?
Use the result as a planning estimate and verify business-critical decisions against your source records.