E-invoicing mandate
E-invoicing in South Korea
A sourced summary of the structured e-invoicing program in South Korea. It is a starting point, not a compliance certificate or proof of delivery.
At a glance
- Scope
- Business-to-business
- Status
- In force
- Network or channel
- NTS Hometax or an authorized issuance channel
- Format
- Korean electronic tax invoice (전자세금계산서)
What this means for you
Corporate taxpayers have been required to issue electronic tax invoices since 2011. The individual-business threshold expanded to KRW 80 million of prior-period taxable and exempt supply value from July 2024; the official source does not support inventing a day within 2011 for corporations.
What FreeBillGen can verify
For eligible saved invoices, FreeBillGen can prepare generic OASIS UBL and UN/CEFACT CII mappings and run its named internal checks. These mappings are not EN 16931, Factur-X, Peppol, national-CIUS or clearance-platform validation. FreeBillGen does not transmit them through a provider network.
Check this route in Invoice PassportOfficial sources used
- Korea NTS - Mandatory electronic tax-invoice issuers (opens in a new tab) Source reviewed 2026-08-17
- Korea NTS - Electronic tax-invoice issuance procedure (opens in a new tab) Source reviewed 2026-08-17
General information only; not legal, tax, accounting, conformance, or delivery-provider advice. Confirm the current scope, technical profile, and channel with the official source or a qualified adviser.