VAT Calculator – Supply price, tax-inclusive total, 10% and zero rate

Quick estimates for quotes, receipts, or study—enter an amount and pick 10% or 0%. Calculations run only in your browser; Webooro does not store your figures. For filings and official invoices, confirm with a tax professional.

Result

Supply Price: 0 VAT: 0 Total: 0

Worked examples (10% VAT)

Splitting a VAT-inclusive total divides it by 1.1, so the result rarely comes out as a round number.

Total (incl. VAT) Net amount VAT
11,000 10,000 1,000
33,000 30,000 3,000
10,000 9,091 909
50,000 45,455 4,545
1,000,000 909,091 90,909

About the 1-won difference

This calculator rounds to the nearest won. Some invoicing programs instead drop the fraction (truncate) when working out the net amount, so their figures can differ from these by 1 won. The total stays the same either way — only the split between net amount and VAT moves.

When the exact split matters — for example on a tax invoice — use the numbers produced by the program you issue the invoice with.

📋 How to Use

  1. Choose a calculation mode: supply price → VAT+total, or tax-inclusive total → supply+VAT.
  2. Enter the amount and select VAT rate (10% or 0%).
  3. Results update below.

Numbers are calculated only in your browser and are not sent to our servers. This is not legal or tax advice.

✨ What this calculator does

It models Korea’s 10% standard VAT and a 0% option for cases like exports or exempt treatment—pick what matches your scenario.

Real-world tax rules, rounding for invoices, and credits can be more complex. Do not treat this page as legal or accounting advice.

Highlights

  • Two modes: supply → VAT+total, or total → supply+VAT.
  • Selectable 10% or 0% rate.
  • Your amounts are not sent to our servers.

Handy for quick quotes, freelance invoices, or classroom examples.

Good use cases

  • Split a tax-inclusive price into supply + VAT
  • Add 10% to a supply price for a total
  • Check the 0% case when total equals supply
  • One-off math without a spreadsheet

Compared with tax software

Business tax suites handle books and filings; this page is for fast mental checks. Nothing is uploaded to our servers.

For complex transactions, deductions, or filings, follow National Tax Service guidance or a tax advisor.

❓ Frequently Asked Questions

Q. Is it really free?
Yes. This VAT calculator is offered at no charge.
Q. Do I need to sign up?
No. Use it directly on this page.
Q. Are my amounts sent to a server?
No. Math runs only in your browser; amounts are not sent to Webooro servers.
Q. What's the difference between 10% and 0%?
10% is the standard taxable rate. 0% applies to exports and exempt goods. Choose the rate that matches your business type.
Q. How are decimals handled?
VAT is rounded to the nearest whole unit. Tax reporting typically uses the same rounding.
Q. Can I use this for tax filing?
This page is for quick reference only. Official filings require correct rules and documentation—consult a tax professional.
Q. Is VAT always 10% in Korea?
The standard rate is 10%. Exports and certain goods are 0% (zero-rated). Some items like agricultural products, education, and medical services are exempt entirely. The exact rate depends on the goods or service type.
Q. Does this work for small-scale taxpayers (간이과세자)?
Small-scale taxpayers (간이과세자) are taxed at a lower effective rate (1.5–4% depending on industry). This calculator uses the standard 10% rate. For simplified taxation, you will need a separate calculation that applies your industry's value-added rate.

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