National Tax Service

What National Tax Service does

The National Tax Service (NTS, 국세청) is the South Korean government agency responsible for national tax administration, operating under the Ministry of Economy and Finance. Established in 1984 and headquartered in Sejong Special Self-Governing Province, NTS administers income tax, corporate tax, VAT, inheritance/gift tax, real estate tax, and consumption taxes across South Korea, and serves individual taxpayers, corporations, startups, low-income households (via work and child tax credits), overseas returning nationals, and high-net-worth enforcement targets. The agency does not generate commercial revenue; it is funded by the government and operates as a regulatory authority rather than a commercial enterprise.

NTS operates a multi-channel service infrastructure centered on HomeTax (홈택스), the unified online tax filing and payment platform, complemented by its mobile counterpart 손택스, the 126 Tax Consultation Center hotline, nationwide regional and district tax offices, the Incheon Airport Taxpayer Service Center, and specialized units including the NTS Liquor License Support Center and the K-SUUL Portal for Korean liquor export promotion. Supporting products include the Tax Law Information System, the National Tax Statistics Portal, the Global Minimum Tax Portal for Pillar Two compliance, and Taxpayer Rights Protection 24. The agency's marketing and outreach extend across YouTube, Instagram, Facebook, Naver Blog, X/Twitter, and the Taxpayer Tax Law Classroom program.

NTS is currently building out AI/ML capabilities across three fronts: an AI Tax Consultant System under a three-year partnership with Seoul National University's AI Institute (planned for 2027), an AI/ML-based cryptocurrency tracking system (3 billion won / $2.02 million budget, pilot November 2026, full launch by end-2026) ahead of the January 2027 taxation of crypto gains exceeding 2.5 million won at 22%, and a Real-time Income Monitoring System. The agency is also expanding cross-border enforcement via MOUs with Hungary, Belgium, UK, Japan, Vietnam, Cambodia tax authorities and OECD Tax Debt Management Network membership. Notable enforcement activity includes audits of celebrities (Cha Eun-woo, ~20 billion won; Ji Chang-wook, several billion won), a supercar company crackdown (~300 billion won suspected evasion), and planned field investigations by ~9,500 contract workers into 1.33 million delinquent taxpayers owing 114 trillion won.

Name

National Tax Service

Legal name

National Tax Service

Website

https://nts.go.kr

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

1–10 employees

Short description

The National Tax Service (NTS) is South Korea's national tax administration agency under the Ministry of Economy and Finance, responsible for collecting income, corporate, VAT, and other national taxes. It serves individual taxpayers, corporations, startups, and low-income households via HomeTax, nationwide tax offices, and specialized enforcement programs.

Ownership category

akta.pro rank

Product category

Government Tax Administration

NAICS

Executive, Legislative, and Other General Government Support (921)

akta.pro primary industry

Revenue Systems, E-Filing & Digital Tax Administration (BPAIADAO)

akta.pro secondary industries

Excise, VAT/Sales Tax & Indirect Tax Administration (BPAIADAH), Tax Return Filing, Processing & Assessment (BPAIADAC), Tax Policy, Legislation & Rulings (BPAIADAA), Withholding & Payroll Tax Administration (BPAIADAI)

Keywords

• Tax administration services
• Tax collection
• Taxpayer services
• Tax audit and enforcement
• Tax compliance platforms

Headquarters

HQ city

Seongnam

HQ country

South Korea

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Tax Collection: NTS operates as South Korea's national tax collection authority, collecting various taxes including income tax, corporate tax, VAT, inheritance/gift tax, real estate tax, and consumption taxes. The agency does not generate commercial revenue but administers the national tax system.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

National Tax Service (NTS) is the government agency of South Korea responsible for national tax collection, taxpayer services, and tax policy implementation. It administers income tax, corporate tax, VAT, inheritance/gift tax, real estate tax, and consumption taxes through the HomeTax online platform, nationwide tax offices, and the 126 consultation hotline. The agency also conducts tax audits and investigations, operates international tax cooperation programs, and disburses tax credits such as work and child tax credits.

Product overview

The National Tax Service (NTS) of South Korea operates a comprehensive suite of digital platforms and services for tax administration. The core platform is HomeTax (홈택스), a unified online tax filing and payment system complemented by its mobile counterpart 손택스. Supporting infrastructure includes the Tax Law Information System (국세법령정보시스템) for legal reference, the National Tax Statistics Portal (국세통계포털) for data access, and the Global Minimum Tax Portal (글로벌최저한세 포털) for Pillar Two compliance. Taxpayer support services encompass the 24-hour Taxpayer Rights Protection service (납세자권익24), Tax Consultation Center (126 hotline), and dedicated Incheon Airport service center. Specialized portals serve distinct needs: the K-SUUL Portal for Korean liquor export promotion, the Liquor License Support Center for the alcoholic beverage industry, and the Children's NTS for tax education. The National Tax Officials Training Institute and Taxpayer Tax Law Classroom provide educational services, while the National Tax Museum offers historical perspective on Korean taxation.

Differentiator

Problem solved

Functional benefit

Products and services

• HomeTax (홈택스) NTS's primary online tax filing and payment platform allowing taxpayers to file tax returns, make payments, and access various tax services electronically.
• Mobile HomeTax (손택스)
• Tax Law Information System (국세법령정보시스템)
• National Tax Statistics Portal (국세통계포털)
• Taxpayer Rights Protection 24 (납세자권익24)
• Tax Consultation Center 126 (국세상담센터126)
• Global Minimum Tax Portal (글로벌최저한세 포털)
• NTS Liquor License Support Center (국세청주류면허지원센터)
• Incheon Airport Taxpayer Service Center (인천공항 납세지원센터)

Quantifiable outcome

• Crypto gains exceeding 2.5 million won taxed at 22% rate from January 2027
• +2 more outcomes

Named customers3 records

Segments6 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• Vietnam General Department of TaxationcoreStrategic or Co-development Partner · 25 June 202625th Korea-Vietnam Tax Commissioner's Meeting to support Korean companies operating in Vietnam. Discussed VAT refunds, APA (Advance Pricing Arrangement) acceleration, and Global Minimum Tax cooperation. Vietnam is Korea's 3rd largest trading partner and largest investment destination.
• Japan National Tax AgencycoreStrategic or Co-development Partner · 24 June 202635-year cooperation in tax information exchange and tax debt collection assistance. The 30th Japan-Korea Tax Commissioner's Meeting discussed cooperation in tax information exchange, collection assistance, tax administration support, and tax crime response including AI utilization.
• Seoul National University AI InstitutecoreStrategic or Co-development Partner · 29 May 2026Three-year partnership to integrate AI into the national tax administration system. Covers AI advisory, joint research on safe and responsible AI operation, and staff training including a project-based course for developing tools like an 'AI tax consultant' system planned for 2027.
• Korea Alcohol and Liquor Industry AssociationminorStrategic or Co-development Partner · 27 May 2026Joint operation of the K-SUUL Pavilion at Vinexpo Asia 2026 in Hong Kong, featuring 16 exhibition and tasting booths for 12 Korean liquor companies to promote Korean alcoholic beverages internationally.
• Hungary Tax AuthoritycoreStrategic or Co-development Partner · 8 May 2026Memorandum of understanding signed to expand cross-border tax collection cooperation and trace/recover overseas assets concealed by delinquent taxpayers. Part of European expansion of tax recovery cooperation.
• Belgium Tax AuthoritycoreStrategic or Co-development Partner · 8 May 2026Agreement to strengthen cooperation on recovering overseas assets hidden by delinquent taxpayers. Belgium proposed Korea's joining of the OECD Tax Debt Management Network.
• United Kingdom HM Revenue & CustomscoreStrategic or Co-development Partner · 8 May 2026Memorandum of understanding to trace and recover overseas assets concealed by delinquent taxpayers. Cooperation includes mutual assistance in tax collection and AI technologies in tax administration.
• OECD Tax Debt Management NetworkcoreOthers · 1 May 2026Korea accepted Belgium's proposal to join the OECD-affiliated council on international tax debt management, expected to deepen cooperation on cross-border delinquent tax recovery.
• Cambodia Tax AuthorityminorStrategic or Co-development Partner · 15 March 2026Agreement to enhance cooperation in exchanging data related to cross-border tax crimes, especially involving virtual assets and illicit money laundering. MOU signed during bilateral meeting.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Regional players

• National Tax Agency Cambodia (GDT): Cambodia's tax administration authority, signed an MOU with NTS in March 2026 focused on cross-border tax-crime data exchange, especially virtual assets and illicit money flows. Comparable mandate on national tax enforcement and emerging digital-asset cooperation.
• General Department of Taxation (GDT), Vietnam: Vietnam's national tax authority, an active bilateral partner under the Korea-Vietnam Tax Commissioner's Meeting. Overlap is functional (national tax administration) and partnership-driven, with regional rather than overlapping competitive footprint.

Others

• OECD Tax Administration (FTA/Forum on Tax Administration): Korea accepted Belgium's proposal to join the OECD Tax Debt Management Network — making OECD an indirect institutional peer and reference framework. Not a direct competitor but a peer-comparable body shaping best practice, comparison standards, and cross-border enforcement norms relevant to NTS's modernization agenda.

Direct peers

• National Tax Agency of Japan (NTA): Japan's national tax agency with mandate and scope directly comparable to NTS. NTA and NTS share a 35-year cooperation history including the annual Japan-Korea Tax Commissioner's Meeting, joint tax-information exchange and AI-utilization cooperation — making it the closest peer structurally and operationally.
• State Taxation Administration of China (STA): China's national tax authority operating VAT, corporate and personal income tax collection at massive scale. As a fellow East Asian agency with overlapping indirect-tax emphasis and large e-filing platforms, STA is the most direct regional peer on operational scale and digital infrastructure.
• Canada Revenue Agency (CRA): Canada's federal tax administrator delivering income, corporate, GST/HST and payroll-tax services through digital channels. Comparable in operating a national online filing platform (similar to HomeTax) and pursuing AI/automation for compliance and audit functions.
• Australian Taxation Office (ATO): Australia's national revenue agency with broad tax-administration mandate, advanced digital-services focus, and active international cooperation posture. Comparable to NTS in operating a unified online platform, modernizing via data analytics, and engaging in treaty-based exchange.
• HM Revenue & Customs (HMRC), United Kingdom: UK's tax and customs authority with a directly comparable mandate over national tax collection and international cooperation. NTS signed an MOU with HMRC for cross-border asset recovery and AI-in-tax-administration cooperation, highlighting parity on digital-modernization priorities and treaty networks.
• Internal Revenue Service (IRS), United States: U.S. national tax authority with closely comparable scope (income, corporate, estate taxes) and an active digital-modernization program. Frequently cited as the global benchmark for large-economy tax administration, making it a useful scale and capability comparator for NTS.

Broad incumbents

• European Commission — DG TAXUD: EU-level tax-and-customs policy directorate with broad rule-setting and information-exchange functions across member states. While not a national tax authority, it is a peer-of-peers that shapes the European recovery environment NTS is accessing via its Hungary/Belgium/UK MOUs, and is relevant context for NTS's European cooperation strategy.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/ntskorea
• YouTubeyoutube.com/channel/UCVTdK_EozBDQ7ICMPJdbpzQ
• Facebookfacebook.com/ntsKorea
• Instagraminstagram.com/nts.korea

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries4 records

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about National Tax Service