liminfoTax Calculator
Free web tool: Tax Calculator
Supply Price
1,000,000
VAT (10%)
100,000
Total
1,100,000
About Tax Calculator
The Korean Tax Invoice Calculator handles three key Korean tax calculations: VAT (10% value-added tax) with supply price and tax amount separation for both inclusive and exclusive amounts, freelancer 3.3% withholding tax breakdown into 3% income tax and 0.3% local income tax with net payment calculation, and custom withholding tax at rates of 3.3% (business income), 8.8% (other income), and 22% (non-resident).
Enter an amount in Korean Won (KRW) and the calculator instantly displays the breakdown. For VAT, toggle between tax-inclusive and tax-exclusive amounts. For withholding tax, select from preset Korean tax rates to see gross amount, tax withheld, and net payment.
Designed for Korean freelancers, small business owners, accountants, and anyone who needs to quickly calculate VAT amounts for tax invoices, determine take-home pay after 3.3% withholding, or compute withholding tax at various rates under Korean tax law.
Key Features
- VAT calculator separating supply price and 10% tax from inclusive or exclusive amounts
- Freelancer 3.3% withholding calculator splitting 3% income tax and 0.3% local income tax
- Withholding tax calculator with preset rates: 3.3% (business), 8.8% (other), 22% (non-resident)
- Instant real-time calculation as you type with Korean Won formatting
- Toggle between VAT-inclusive and VAT-exclusive input modes
- Net payment (take-home) amount prominently displayed for freelancer and withholding calculations
- Clean tabbed interface switching between VAT, Freelancer 3.3%, and Withholding Tax modes
- 100% client-side calculation — no data sent to any server
Frequently Asked Questions
How does the VAT calculator work?
Enter an amount in KRW and the calculator applies the Korean standard 10% VAT rate. In tax-exclusive mode, it adds 10% to calculate the total. In tax-inclusive mode, it reverse-calculates the supply price (amount / 1.1) and the VAT portion. This is the standard calculation used for Korean tax invoices (세금계산서).
What is the 3.3% freelancer withholding tax?
In Korea, payments to freelancers (사업소득) are subject to 3.3% withholding: 3% income tax plus 0.3% local income tax (10% of the income tax). The calculator shows the contract amount, income tax, local tax, total withheld, and the net amount the freelancer actually receives.
What withholding tax rates are supported?
The calculator supports three Korean withholding tax rates: 3.3% for business income (사업소득, the standard freelancer rate), 8.8% for other income (기타소득, such as lecture fees or prize money), and 22% for non-resident income (비거주자, applicable to foreign contractors).
Can I calculate VAT from a tax-inclusive amount?
Yes. Check the "VAT inclusive amount" checkbox and enter the total amount including VAT. The calculator will reverse-calculate the supply price by dividing by 1.1 and show the VAT portion separately. This is useful when you have a receipt total and need to know the pre-tax amount.
Is this calculator based on Korean tax law?
Yes. All calculations follow Korean tax regulations: 10% VAT rate per the Value-Added Tax Act, 3.3% freelancer withholding per the Income Tax Act, and withholding rates for business income, other income, and non-resident income. Note that tax laws may change, so verify with the National Tax Service for the latest rates.
How is the net payment calculated for freelancers?
Net payment = Contract amount - Income tax (3%) - Local income tax (0.3%). For example, on a 1,000,000 KRW contract: income tax is 30,000, local tax is 3,000, total withheld is 33,000, and the freelancer receives 967,000 KRW.
Can I use this for non-resident withholding calculations?
Yes. Select the 22% non-resident rate in the Withholding Tax tab. This rate applies to payments made to non-residents under Korean tax law. The calculator shows the gross amount, the 22% tax withheld, and the net payment. For treaty-reduced rates, consult a tax professional.
Is this tax calculator free and private?
Yes, it is completely free with no registration required. All calculations happen in your browser — no data is sent to any server. Your financial information stays entirely on your device. It is part of liminfo.com's free online tool collection.