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South Korea Invoice Template

A free, editable layout that names the four items Article 32 of Korea's Value-Added Tax Act requires on a tax invoice (세금계산서): the supplier's business registration number and name, the buyer's registration number, the supply value and VAT, and the date of preparation. VAT is 10%, shown separately from the supply value. Use it as a reference, a draft for a quote, or an invoice for a client outside Korea. It is not a Korean electronic tax invoice (전자세금계산서). Every corporation, and every individual business whose taxable plus exempt supplies reached ₩80 million in the previous year, must issue tax invoices electronically through Hometax or NTS-connected software and transmit them to the National Tax Service by the day after issue. A file from this page, or a PDF from InvoiceQuickly, cannot do that. The template downloads as an HTML file you edit in a browser and print or save as PDF.

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Preview this editable document

Download the HTML file to edit its fields, then print or save as PDF. Totals are entered manually.

What This Template Includes

  • Supplier business registration number (사업자등록번호)
  • Buyer business registration number
  • Date of preparation (작성 연월일)
  • Supply value (공급가액)
  • VAT amount at 10% (부가가치세액)
  • Reference of the related e-tax invoice, if one was issued

How to Create Your South Korea Invoice

  1. 01

    Describe your work

    Type a plain English description of the services you provided, the client, and the amount.

  2. 02

    AI generates your invoice

    InvoiceQuickly's AI drafts the client, line items, dates, and totals for you to review before saving.

  3. 03

    Review, download, and send

    Check every detail, download the PDF, or use Pro to email the PDF directly to your client.

Recommended Payment Terms

The tax invoice rules set when the invoice is issued, not when the buyer pays. Agree payment terms in your contract and print them, for example "Payment by bank transfer within 30 days of the invoice date". Keep the payment due date separate from the date of preparation, which is a required tax invoice item.

Need help writing payment terms? Read our guide to invoice payment terms for best practices and templates.

Tax Information

South Korea charges VAT at 10% (Value-Added Tax Act Article 30, version in force from 2 January 2026). A tax invoice shows the supply value and the VAT amount separately. Corporations, and individual businesses with prior-year taxable plus exempt supplies of ₩80 million or more, must issue it as an electronic tax invoice and transmit it to the National Tax Service (NTS) by the day after issue. VAT returns cover two six-month periods, with final returns due by 25 July and 25 January. InvoiceQuickly applies one tax percentage per invoice, copies saved tax IDs to new invoice PDFs, does not offer Korean won in its editor and cannot issue or transmit e-tax invoices.

Industry context (2026)

South Korea has required electronic tax invoices from corporations since January 2011. For individual businesses the National Tax Service has lowered the threshold in steps: ₩1 billion of prior-year supplies in 2012, ₩300 million in 2014, ₩200 million in 2022, ₩100 million in 2023 and ₩80 million from July 2024, counting taxable and exempt supplies together. Once the threshold is met, the obligation starts on 1 July of the following year and continues (NTS, 전자(세금)계산서 발급의무대상자, accessed 27 October 2026).

Worked example

Hangang Design Co., Ltd., a corporation in Seoul, delivers a product catalogue design to Busan Marine Supply Co., Ltd. on 14 October 2026 (an illustrative example). Supply value: ₩5,000,000. VAT at 10%: ₩500,000. Total: ₩5,500,000. Because Hangang Design is a corporation, it issues an electronic tax invoice dated 14 October 2026 in Hometax, showing both companies' business registration numbers, Hangang Design's company name, the supply value, the VAT and the date of preparation. Hometax transmits it to the National Tax Service at once, inside the deadline of 15 October. The sale goes on the corporation's final VAT return for October to December 2026, filed between 1 and 25 January 2027. A PDF built from this template could still serve as a quote before the work, but it would not replace the e-tax invoice.

Common mistakes to avoid

Sending a PDF when an e-tax invoice is required

A PDF or paper invoice is not an electronic tax invoice. If no tax invoice is issued, the NTS penalty is 2% of the supply value and the buyer loses the input VAT deduction.

Combining supply value and VAT

The supply value and the VAT amount are separate required items. Show ₩5,000,000 and ₩500,000, not just ₩5,500,000.

Missing the next-day transmission

Software outside Hometax must send each e-tax invoice to the NTS by the day after issue. Late transmission costs 0.3% of the supply value.

Ignoring the individual-business threshold

Individual businesses with ₩80 million or more of prior-year taxable plus exempt supplies must issue electronically from 1 July of the following year. Watch for the NTS notice.

Invoicing Tips

  • 1Check whether you must issue electronically. All corporations must, and so must individual businesses at or above ₩80 million of prior-year supplies. If so, issue the tax invoice in Hometax or NTS-connected software, not from this template.
  • 2Show the supply value and the VAT as two separate amounts. On ₩5,000,000 of work, VAT is ₩500,000 and the total is ₩5,500,000.
  • 3Enter the buyer's business registration number exactly. It is one of the four required items, and the buyer relies on it to deduct input VAT.
  • 4Several supplies to the same buyer in one month can go on one monthly aggregate tax invoice, issued by the 10th of the following month.
  • 5If an issued tax invoice needs to change after a return or price change, issue a corrected tax invoice (수정세금계산서) rather than editing the original.

Related Resources

Frequently Asked Questions

What must a Korean tax invoice include?

Article 32 of the Value-Added Tax Act lists four required items: the supplier's business registration number and name, the buyer's business registration number, the supply value and VAT amount, and the date of preparation. Where the buyer is not a registered business, the Act allows a unique number set by decree or a resident registration number instead.

Can I use this template instead of an electronic tax invoice?

No, not where electronic issue is required. Corporations, and individual businesses whose taxable plus exempt supplies reached ₩80 million in the previous year, must issue electronic tax invoices through Hometax or NTS-connected software. The National Tax Service's penalty for issuing on paper when e-issue was required is 1% of the supply value, and 2% if no tax invoice is issued.

Does this template calculate Korean VAT?

No. The downloaded HTML file is a layout, and you type the figures yourself. If you draft an invoice in InvoiceQuickly instead, the app adds one tax percentage to the subtotal and shows it as a generic "Tax (10%)" line, but its editor does not offer Korean won.

When must an e-tax invoice reach the National Tax Service?

By the day after it is issued. Issuing through Hometax sends it to the buyer by email and to the NTS automatically. Late transmission carries a 0.3% penalty and non-transmission 0.5% of the supply value, according to the NTS.