VAT exclusive amount
Enter a supply amount to calculate VAT and the total amount.
When to use this calculator
Calculate VAT and the total from a supply amount, or separate a tax-inclusive total into supply amount and VAT.
- Preparing a Korean invoice estimate
- Checking tax included in a quoted total
- Comparing tax-exclusive and tax-inclusive prices
Worked examples
VAT excluded
At 10%, a KRW 100,000 supply amount produces KRW 10,000 VAT and KRW 110,000 total.
VAT included
A KRW 110,000 total at 10% contains KRW 100,000 supply amount and KRW 10,000 VAT.
Frequently asked questions
Is Korean VAT always 10%?
10% is the common rate, but exemptions and special cases exist.
Why is division by 1.1 used?
A VAT-inclusive total equals the supply amount multiplied by 1.1 at a 10% rate.
Can rounding differ on an invoice?
Yes. Invoice systems may apply statutory won-level rounding rules.
How to interpret the result
This is a reference calculation and does not replace tax reporting software or professional advice.
Confirm exemptions, simplified taxation, and invoice rounding rules with the relevant authority.