Korea Tax Incentives for Foreign Investors 2026

Quick answer

Korea no longer offers a corporate tax holiday for foreign investors: the FDI corporate and income tax reduction under Article 121-2 of the Restriction of Special Taxation Act (RSTA) applies only to companies that applied by December 31, 2018 (RSTA Art. 121-2; EY). Today, foreign-invested companies use the same incentives as Korean companies — R&D credits (up to 30–50% for national strategic technologies), investment tax credits, startup SME reductions of 25–100% for five years, and employment credits — plus customs, VAT and individual consumption tax exemptions on capital goods imported as part of a notified foreign investment (RSTA Art. 121-3). There is no general “tax-free for 5–7 years” route.

Table of Contents

Overview: Key Tax Incentives for Foreign Investors (2026)

1. The FDI Tax Holiday Is Gone

Until 2018, qualifying foreign-invested companies (high-tech businesses, companies in foreign investment zones, Free Economic Zones and similar areas) could obtain a corporate tax reduction of 100% for 5 years and 50% for 2 years (or 100% for 3 years and 50% for 2 years in some zones), in proportion to the foreign shareholding.

Under the current statute, that reduction applies only to foreign-invested companies that applied by December 31, 2018 (Article 121-2(2)), and the related acquisition and property tax relief under the RSTA applies to applications made by December 31, 2019 (Article 121-2(4)). The 2019 reform was made in response to international criticism of preferential tax regimes (EY Tax News).

What this means: a new foreign-invested company — in a Free Economic Zone or not — pays corporate tax at the normal progressive rates, reduced only by the general credits and reductions described below. Local tax relief for qualifying foreign investment now sits mainly in the Restriction of Special Local Taxation Act and municipal ordinances, and cash grants have become the main targeted incentive (see our cash grant guide).

2. R&D Tax Credit (RSTA Article 10)

The ”+ up to 10%” depends on the ratio of qualifying R&D spending to revenue. The strategic and new-growth credits apply to costs incurred through December 31, 2029 (semiconductor strategic technology R&D: through December 31, 2031). Source: RSTA Art. 10.

Requirements in practice

• R&D must be performed by a recognized corporate research institute or dedicated R&D department
• Strategic, new-growth and general R&D costs must be accounted for separately (Art. 10(4))
• Keep project records, researcher timesheets and technical documentation — R&D credits are a frequent audit target

3. Integrated Investment Tax Credit (RSTA Article 24)

Investment in qualifying business assets earns a basic credit plus an incremental credit of 10% of the amount by which investment exceeds the prior three-year average (capped at twice the basic credit). Basic rates include:

Source: RSTA Art. 24. Companies that recently graduated from SME status get intermediate rates. See our integrated investment tax credit guide.

4. Startup SME Tax Reduction (RSTA Article 6)

A qualifying SME that starts a business in an eligible industry by December 31, 2027 can reduce corporate tax on income from that business for five years from the first year it has income. For companies started on or after January 1, 2026, the rates are:

Source: RSTA Art. 6(1). Additional points:

• Eligible industries include manufacturing, information and communications (with exceptions), e-commerce, logistics, engineering and many professional, scientific and technical services, but exclude law, accounting, tax and similar professions
• Small startups: startups with annual revenue up to KRW 104 million can get higher rates (Art. 6(6))
• Annual cap: total reduction under Article 6 is capped at KRW 500 million per year (Art. 6(13))
• SME status is essential: a subsidiary controlled by a large foreign group may fail the SME independence tests, which would rule out this reduction
• “Youth” status depends on the age of the founder/representative under the Enforcement Decree, so check how it applies to a corporate founder structure
• Acquiring an existing business or converting a sole proprietorship is generally not treated as a startup (Art. 6(10))

5. Technology Transfer (RSTA Article 12)

SMEs and mid-sized companies that transfer self-developed patents, utility models, know-how or technology to a Korean resident or company (other than a related party) by December 31, 2026 get a 50% reduction of tax on the resulting income; leasing such rights gives a 25% reduction (RSTA Art. 12). Note the 2026 sunset date and that transfers to related parties do not qualify.

6. Employment Tax Credit (RSTA Article 29-8)

The integrated employment tax credit gives a credit for each net additional full-time employee, with larger amounts for SMEs, non-capital-region employers and hires of youth, older or disabled workers. Credits can be recaptured if headcount falls within the follow-up period. Amounts change frequently — check the current statute before budgeting.

7. Customs, VAT and Individual Consumption Tax on Capital Goods (RSTA Article 121-3)

Capital goods brought in as part of a notified foreign investment for qualifying businesses can be exempt from customs duty, individual consumption tax and VAT (RSTA Art. 121-3). Key conditions:

• The goods must be introduced in accordance with the foreign investment notification under the Foreign Investment Promotion Act
• The business must be one of the qualifying categories listed in Article 121-2(1) (for some categories only customs duty is exempt)
• An exemption application must be filed; acquisitions of existing shares do not qualify (Art. 121-3(4))

How to Maximize Tax Savings

1. Map your business to the RSTA categories first — national strategic technology, new growth/source technology, startup industries
2. Choose location deliberately — startup reductions and many other benefits are higher outside the capital region
3. Check SME status before relying on SME rates; group affiliation can disqualify you
4. Set up R&D accounting (research institute recognition, separate cost tracking) from day one
5. Plan capital goods imports around the foreign investment notification to secure customs/VAT relief
6. Model the minimum tax — it can limit how much credit you can use in a year; unused credits can generally be carried forward for 10 years

Dividend Withholding to Foreign Parents

The domestic withholding tax on dividends paid to a foreign corporate shareholder is 20% plus 2% local income tax (22%). Tax treaties usually reduce this — for example, generally to 10–15% under many of Korea’s treaties, depending on the ownership level — but treaty benefits require beneficial ownership and the proper application forms.

Common Mistakes

• Relying on the pre-2019 FDI tax holiday — it is not available for new investments
• Assuming a foreign-controlled subsidiary is an SME — check the independence criteria
• Missing documentation for R&D credits — leading to disallowance plus penalties and interest on audit
• Choosing a Seoul overcrowding-zone address by default — this can eliminate startup reductions for non-youth founders
• Picking the wrong entity type or registering business purposes that do not match the activities you want incentives for

How We Help Foreign Investors

✅ Entity and location planning around available incentives
✅ Foreign investment notification and capital goods import planning
✅ Coordination with tax advisers on R&D, investment and startup credits
✅ Cash grant applications where the project qualifies

📩 Plan Your Korea Investment

Contact us at sma@saemunan.com to discuss which incentives realistically apply to your project.

Disclaimer: This article provides general information and does not constitute tax or legal advice. Tax benefits are subject to statutory conditions, NTS review and legislative changes. Consult a licensed Korean tax adviser before claiming credits or reductions.

Official Sources

For authoritative reference, consult the following Korean government portals:

• National Tax Service of Korea (NTS)
• Hometax (Korea Tax Filing Portal)
• Invest Korea (KOTRA)
• KOTRA — Korea Trade-Investment Promotion Agency