VAT excluded
VAT = net amount × rate; total = net amount + VAT. At 100,000 and 10%, VAT is 10,000 and total is 110,000.
066 · BUSINESS & FINANCE
VAT Calculator
Calculate VAT and totals from net amounts, or reverse VAT-inclusive totals into net amount and tax.
LOCALCALCULATE IN YOUR BROWSER
LOCALAmounts and results are calculated only in this browser and are not sent to or stored on a server.
Calculate VAT and total from a net amount.
Default 10%
Display settings · Decimals
0
RESULT · Calculation result
VAT ExcludedNet Amount100,000KRW
VAT10,000KRW
Total Amount110,000KRW
Applied Rate: 10.00%
VAT = supply × 10/100; total = supply + VATVAT · This result calculates the VAT component of a transaction. It is not a final VAT filing or tax-payable calculation.
HOW TO USE
How to use
- 01
Choose Net amount or VAT-inclusive total as the calculation basis.
- 02
Confirm the default 10% rate and change it only when a reference calculation is needed.
- 03
Enter the amount to see Net Amount, VAT, and Total Amount immediately.
- 04
For VAT-inclusive totals, the tool divides by 1.1 at the default rate instead of simply subtracting 10%.
- 05
Use Reverse Tax Rate to derive the effective rate from a net amount and VAT, then copy the summary if needed.
- 06
When comparing the result with an invoice or quote, confirm that net amount and VAT are stated on the same basis.
VAT FORMULA
VAT calculation essentials
The calculator separates net-to-total and inclusive-total reverse formulas so the calculation direction stays explicit.VAT included
Net amount = total ÷ (1 + rate); VAT = total − net amount. At 110,000 and 10%, net amount is 100,000.
VAT inside a total
At 10%, the VAT component of an inclusive total is total×10/110, not total×10%.
Reverse rate
When net amount and VAT are known, effective rate = VAT ÷ net amount × 100.
Display rounding
Internal math keeps precision while the KRW display starts at 0 decimals and allows up to 2 decimals.
Not tax payable
Final tax payable can include input-tax and filing rules, so it must be distinguished from this transaction VAT calculation.
IMPORTANT NOTES
Important notes
- The default preset is 10%, matching the standard VAT rate described for general taxable businesses in the source brief.
- For a VAT-inclusive total, VAT is total×10/110 at the default rate, not simply total×10%.
- The VAT shown here is the tax component of a transaction and is not the final tax payable on a VAT filing.
- Zero-rated/exempt eligibility, simplified-taxpayer payable amounts, and input-tax credits are not automatically determined.
- A manually entered rate other than the default 10% is labeled as a reference calculation.
- Use current official tax guidance and filing systems for legal filing amounts.
- For price comparisons, first normalize whether each price is VAT-inclusive or VAT-exclusive before comparing unit costs.
FAQ
Frequently asked questions
01What is the VAT on a net amount of 100,000?+
At the default 10% rate, VAT is 10,000 and the total is 110,000.
02What is the net amount in a VAT-inclusive total of 110,000?+
110,000÷1.1=100,000 net amount, with 10,000 VAT.
03Can I just subtract 10% from an inclusive price?+
No. At the default rate, the VAT component is total×10/110.
04Is the VAT result the same as my final tax payable?+
No. This tool calculates the VAT component of a transaction, not a final VAT filing liability.
05Does 10% apply to every transaction?+
No. Zero-rated or exempt cases can exist under separate legal conditions, which this calculator does not determine.