Tax
VAT Calculator
Calculate VAT and the total from a pre-tax amount, or split a VAT-inclusive total into its base amount and tax.
How to use
Choose whether to add VAT to a base amount or extract it from a tax-inclusive total. This calculator uses a general 10% rate and rounds to whole won.
Formula
VAT = base amount × 10% · Total = base amount + VAT · Base from total = total ÷ 1.1
Example
How much is 10% VAT on ₩10,000?
VAT is ₩1,000 and the total is ₩11,000.
Frequently asked questions
- How do I extract VAT from a tax-inclusive amount?
- Divide the total by 1.1 to estimate the base amount, then subtract it from the total.
- Does 10% apply to every transaction?
- No. Exemptions, zero rates, and special cases can apply. This is a general calculation, not tax advice.