Free tools
VAT calculator
Enter the supply value or the total amount to see the supply value, VAT, and total.
- Last verified
- 2026-08-01
- Official source
- Value-added tax
- Privacy
- Inputs are neither stored nor sentPrivacy policy (Korean) (opens in a new tab)
Switching the basis recalculates the amount you entered.
Result
- Supply value
- —
- VAT
- —
- Total amount
- —
How this is calculated
Last verified 2026-08-01
What this covers
- Calculates transactions at the standard 10% rate.
- Zero-rated and exempt transactions and mixed rates are not supported.
- The result is an estimate and carries no legal or filing effect. Confirm with the relevant authority or a professional before filing or paying.
Official sources
- View the official source (Korean) (opens in a new tab)
Value-added tax
Effective from 2026-01-01, Last verified 2026-08-01
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OpenFAQ
About the VAT calculator
Is the VAT calculator free?
Yes. It is free and requires no sign-in.
How is VAT calculated?
VAT is 10% of the supply value. When you only know the total, the calculator applies 10/110 and drops fractions below 1 KRW.
Can I file directly from this result?
Treat the result as a reference. Re-check the transaction terms and tax treatment before you file or issue a tax invoice.
How does Bolta calculate VAT?
Enter the supply value on a tax invoice and Bolta fills in the VAT and total for you. You do not need to open a separate calculator.
Issue tax invoices for free too
Bolta issues Korean electronic tax invoices with no limit on volume, free of charge.