How to use this calculator
- Enter amount, vat rate (%), amount entered is.
- Choose a display currency, then select Calculate. Results also update after a brief pause while you edit.
- Read the result with the assumptions below. Export details or save a second scenario to compare your choices.
Formula and method
Assumptions and limitations
A single user-entered rate applies to the full transaction. No country rate, exemption, registration status or recoverability rule is inferred.
Worked example
At an entered 5% rate, 100 before VAT becomes 105. Removing VAT from 105 returns net 100 and VAT 5.
What the result means
Removing tax requires division by 1 plus the rate; subtracting the same percentage from the gross total is incorrect.
Common questions
Is the sample rate official?
No. It is editable example data, not a current country-specific rate.
Can I use this for GST or sales tax?
The arithmetic works for a single percentage, but local taxable-base and compounding rules may differ.
Methodology and transparency
Calculation specification reviewed on 2026-10-14. Mathematical implementation is tested against independent reference fixtures. This does not imply review by a licensed financial professional. Read the testing and precision policy.