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South Korea

Asia-PacificMandatory

South Korea is one of Asia's pioneering countries implementing full e-invoicing mandate via the e-Tax Invoice system managed by NTS (National Tax Service).

Legal Framework

Legal Basis

Governed by VAT Act (Value Added Tax Act) and NTS regulations.

Key Regulations

Full mandate: Phased for all businesses since 2011
NTS (National Tax Service): South Korean tax authority
e-Tax Invoice: Mandatory electronic invoice system
HomeTax: NTS e-tax platform
Revenue threshold progressively reduced

Technical Requirements

Format

e-Tax Invoice XML: NTS proprietary XML schema
Standard e-invoice format

Transmission

Via NTS HomeTax platform
Through ASP (Application Service Provider)
ERP integration or web portal

Signing

NPKI (National Public Key Infrastructure) digital certificate
Qualified electronic signature

Document Types

e-Tax Invoice

Key Dates

2011-01-01

Mandatory for large enterprises

2014-07-01

Mandatory for majority of VAT taxpayers

TaxTen Service

TaxTen manages e-Tax Invoice processes by integrating with South Korea's NTS HomeTax platform.

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