๐ฐ NEWSCUS: Tax Issues & Trends(์กฐ์ธ์ด์&ํธ๋ ๋) – Global Minimum Tax, Inheritance Tax Reform, and Changes to Corporate Taxation(๊ธ๋ก๋ฒ ์ต์ ํ์ธยท์์์ธ ๊ฐํธยท๋ฒ์ธ์ธ ๋ณํ)
7์ ๋์งธ์ฃผ ์กฐ์ธ ์ด์ ๋ฐ ํธ๋ ๋ (๊ตญ๋ดยทํด์ธ ์ข ํฉ)


๐ Domestic Tax Issues (Korea)(๊ตญ๋ด ์กฐ์ธ ์ด์)
1. Implementation of Higher Corporate Tax Rates(๋ฒ์ธ์ธ์จ ์ธ์ ์ํ)
Effective from 2026, Korea’s corporate income tax rates have been increased by 1 percentage point across all taxable income brackets, restoring the rates to their 2022 levels. As a result, the rise in effective tax burdens on businesses and its potential impact on investment activities have become key areas of focus.
(2026๋ ๋ถํฐ ๋ฒ์ธ์ธ์จ์ด ๋ชจ๋ ๊ณผ์ธํ์ค ๊ตฌ๊ฐ์์ 1%p ์ธ์๋์ด 2022๋ ์์ค์ผ๋ก ํ์๋จ. ์ด์ ๋ฐ๋ผ ๊ธฐ์ ์ ์คํจ์ธ๋ถ๋ด ์ฆ๊ฐ์ ํฌ์ ์ํฅ์ด ์ฃผ์ ๊ด์ฌ์ฌ์.)
* Key Tax Rates(์ฃผ์ ์ธ์จ)
- KRW 200 million or less(2์ต์ ์ดํ): 10%
- Over KRW 200 million to KRW 20 billion(2์ต์ ์ด๊ณผ~200์ต์ ์ดํ): 20%
- Over KRW 20 billion to KRW 300 billion(200์ต์ ์ด๊ณผ~3,000์ต์ ์ดํ): 22%
- Over KRW 300 billion(3,000์ต์ ์ด๊ณผ): 25%
2. OECD Pillar Two (Global Minimum Tax) Compliance(OECD ๊ธ๋ก๋ฒ ์ต์ ํ์ธ(Pillar Two) ๋์)
South Korea has implemented the OECD BEPS 2.0 Global Minimum Tax regime. Under the rules, multinational enterprise (MNE) groups with consolidated annual revenue of at least EUR 750 million may be subject to additional taxation if their effective tax rate in a particular jurisdiction falls below 15%.
(ํ๊ตญ์ OECD BEPS 2.0์ ๋ฐ๋ฅธ ๊ธ๋ก๋ฒ ์ต์ ํ์ธ ์ ๋๋ฅผ ๋์ ํ์ฌ ์ํ ์ค์, ์ฐ๊ฒฐ๋งค์ถ 7.5์ต ์ ๋ก ์ด์ ๋ค๊ตญ์ ๊ธฐ์ ์ ๊ตญ๊ฐ๋ณ ์คํจ์ธ์จ์ด 15%์ ๋ฏธ๋ฌํ ๊ฒฝ์ฐ ์ถ๊ฐ์ธ ๋ถ๋ด์ด ๋ฐ์ํจ.)
* Key Issues(์ฃผ์ ์์ )
- Review and restructuring of overseas subsidiary arrangements(ํด์ธ ์ํ์ฌ ๊ตฌ์กฐ ์ฌ๊ฒํ )
- Establishment of a Global Minimum Tax compliance and reporting framework(๊ธ๋ก๋ฒ ์ต์ ํ์ธ ์ ๊ณ ์ฒด๊ณ ๊ตฌ์ถ)
- Application of the Qualified Domestic Minimum Top-up Tax (QDMTT)(QDMTT(๊ตญ๋ด ์ถ๊ฐ์ต์ ์ธ) ์ ์ฉ)
- Compliance with Global Information Return (GIR) reporting requirements(๊ธ๋ก๋ฒ ์ ๋ณด๋ณด๊ณ (GIR) ๋์)
3. Inheritance and Gift Tax Reform Discussions(์์์ธยท์ฆ์ฌ์ธ ๊ฐํธ ๋ ผ์)
Inheritance tax reform is considered one of the most significant medium- to long-term tax policy issues in South Korea as of 2026.(์์์ธ ์ ๋ ๊ฐํธ์ 2026๋ ํ์ฌ ๊ฐ์ฅ ์ค์ํ ์ค์ฅ๊ธฐ ์ธ์ ๊ฐํธ ๊ณผ์ ๋ก ํ๊ฐ๋จ.)
The government is pursuing a long-term transition from the current estate tax system, under which tax is imposed on the deceased’s total estate, to an inheritance acquisition tax system, under which tax is levied based on the assets actually received by each heir. Key discussion points include expanding child-related deductions and reducing the tax burden on middle-income households. However, as of July 2026, a full transition to the new system has not yet been implemented.
(์ ๋ถ๋ ํํ ์ ์ฐ์ธ ๋ฐฉ์์์ ์ฅ๊ธฐ์ ์ผ๋ก ์ ์ฐ์ทจ๋์ธ ๋ฐฉ์ ์ ํ์ ์ถ์งํ๊ณ ์์ผ๋ฉฐ, ์๋ ๊ณต์ ํ๋ ๋ฐ ์ค์ฐ์ธต ์ธ๋ถ๋ด ์ํ๊ฐ ์ฃผ์ ๋ ผ์์ฌํญ์, ๋ค๋ง 2026๋ 7์ ํ์ฌ ์์ ํ ์ ๋ ์ ํ์ ์์ง ์ด๋ฃจ์ด์ง์ง ์์.)
4. Restoration of Securities Transaction Tax Rates(์ฆ๊ถ๊ฑฐ๋์ธ์จ ํ์)
Beginning in 2026, the previously reduced securities transaction tax rates have been partially restored following the expiration of certain tax reduction measures. This change is viewed as an effort to strike a balance between securing government revenue and promoting capital market development.
(2026๋ ๋ถํฐ ์ฆ๊ถ๊ฑฐ๋์ธ ์ธํ์กฐ์น๊ฐ ์ผ๋ถ ์ข ๋ฃ๋๋ฉด์ ์ธ์จ์ด ํ์๋จ. ์ด๋ ์ธ์ ํ๋ณด์ ์๋ณธ์์ฅ ํ์ฑํ ์ ์ฑ ๊ฐ์ ๊ท ํ ๋ฌธ์ ๋ก ํ๊ฐ๋จ.)
- KOSPI(์ฝ์คํผ): 0.05%
- KOSDAQ(์ฝ์ค๋ฅ): 0.20%
- K-OTC: 0.20%
5. Strengthening Tax Administration and Anti-Tax Avoidance Measures(์ธ์๊ด๋ฆฌ ๋ฐ ์กฐ์ธํํผ ๋ฐฉ์ง ๊ฐํ)
The National Tax Service (NTS) and the government are strengthening oversight of false tax invoices, international transactions, and liaison offices of foreign corporations.
(๊ตญ์ธ์ฒญ๊ณผ ์ ๋ถ๋ ํ์์ธ๊ธ๊ณ์ฐ์, ๊ตญ์ ๊ฑฐ๋, ์ธ๊ตญ๋ฒ์ธ ์ฐ๋ฝ์ฌ๋ฌด์ ๋ฑ์ ๋ํ ๊ด๋ฆฌ ๊ฐํ๋ฅผ ์ถ์งํ๊ณ ์์.)
- Increased penalty rates for fraudulent tax invoices(๊ฐ๊ณต์ธ๊ธ๊ณ์ฐ์ ๊ฐ์ฐ์ธ์จ ์ธ์)
- Enhanced information filing requirements for foreign corporations(์ธ๊ตญ๋ฒ์ธ ์ ๋ณด์ ์ถ ์๋ฌด ๊ฐํ)
- Expanded documentation and reporting requirements for international taxation matters(๊ตญ์ ์กฐ์ธ ์๋ฃ์ ์ถ ํ๋)

๐ Global Tax Issues(ํด์ธ ์กฐ์ธ ์ด์)
1. OECD Global Minimum Tax (Pillar Two) Enters the Implementation Phase(OECD ๊ธ๋ก๋ฒ ์ต์ ํ์ธ(Pillar Two) ์ ์ฐฉ ๋จ๊ณ ์ง์ )
The OECD Global Minimum Tax (Pillar Two) remains the most significant international tax issue in 2026.(2026๋ ๊ตญ์ ์กฐ์ธ ๋ถ์ผ ์ต๋ ์ด์์.)
In April 2026, the OECD released the Global Minimum Tax Implementation Toolkit to support tax authorities worldwide in administering and enforcing the regime.(OECD๋ 2026๋ 4์ ใGlobal Minimum Tax Implementation Toolkitใ์ ๋ฐํํ์ฌ ๊ฐ๊ตญ ๊ณผ์ธ๋น๊ตญ์ ์ ๋ ์งํ์ ์ง์ํ๊ณ ์์.)
* Key Issues(ํต์ฌ ์ด์):
- Standardization of tax filing and payment procedures(์ ๊ณ ๋ฐ ๋ฉ๋ถ ์ ์ฐจ ํ์คํ)
- Reduction of differences in implementation across jurisdictions(๊ตญ๊ฐ๋ณ ์งํ ์ฐจ์ด ์ถ์)
- Establishment of the Global Information Return (GIR) framework(GIR(๊ธ๋ก๋ฒ ์ ๋ณด์ ๊ณ ) ์ฒด๊ณ ๊ตฌ์ถ)
- Allocation of taxing rights over top-up taxes(์ถ๊ฐ์ธ ๊ณผ์ธ๊ถ ๋ฐฐ๋ถ ๋ฌธ์ )
2. OECD and U.S. Reach a โSide-by-Sideโ Agreement(๋ฏธ๊ตญ๊ณผ OECD์ ‘Side-by-Side’ ํฉ์)
In January 2026, the OECD Inclusive Framework released the Side-by-Side Package, which allows the U.S. tax system and the Pillar Two framework to coexist.
(2026๋ 1์ OECD ํฌ๊ด์ ์ดํ์ฒด๊ณ(Inclusive Framework)๋ ๋ฏธ๊ตญ ์กฐ์ธ์ฒด๊ณ์ Pillar Two๊ฐ ๊ณต์กดํ ์ ์๋๋ก ํ๋ Side-by-Side ํจํค์ง๋ฅผ ๊ณต๊ฐํจ.)
* Key Features(์ฃผ์ ๋ด์ฉ):
- Reduced IIR (Income Inclusion Rule) and UTPR (Undertaxed Profits Rule) exposure for U.S. multinational enterprises(๋ฏธ๊ตญ ๊ธฐ์ ์ ๋ํ IIRยทUTPR ๋ถ๋ด ์ํ)
- Recognition of the U.S. tax system as operating alongside Pillar Two(๋ฏธ๊ตญ ์ธ์ ๋ฅผ Pillar Two์ ๋ณํ ์ธ์ )
- Continued application of QDMTT and information reporting obligations(๋ค๋ง QDMTT ๋ฐ ์ ๋ณด์ ๊ณ ์๋ฌด๋ ์ ์ง)
3. Expansion of QDMTT (Qualified Domestic Minimum Top-up Tax) Adoption(๊ฐ๊ตญ์ QDMTT(๊ตญ๋ด ์ถ๊ฐ์ต์ ์ธ) ๋์ ํ๋)
Countries including the Netherlands, the UAE, Belgium, and Brazil have continued to refine their legislation and reporting frameworks related to the Global Minimum Tax throughout 2026.
(๋ค๋๋๋, UAE, ๋ฒจ๊ธฐ์, ๋ธ๋ผ์ง ๋ฑ์ 2026๋ ๋ค์ด ๊ธ๋ก๋ฒ ์ต์ ํ์ธ ๊ด๋ จ ๋ฒ๋ น๊ณผ ์ ๊ณ ์ฒด๊ณ๋ฅผ ๊ณ์ ์ ๋นํ๊ณ ์์.)
The objective is to ensure that additional tax revenues arising within a jurisdiction are collected domestically rather than being allocated to other countries.
(๋ชฉ์ ์ ์๊ตญ์์ ๋ฐ์ํ ์ถ๊ฐ์ธ์๋ฅผ ํ๊ตญ์ด ์๋ ์๊ตญ์ด ํ๋ณดํ๊ธฐ ์ํ ๊ฒ์.)
4. Expansion of OECD International Tax Information Exchange(OECD ๊ตญ์ ์กฐ์ธ ์ ๋ณด๊ตํ ํ๋)
The introduction of the Global Minimum Tax has significantly strengthened international information exchange frameworks among tax authorities.(๊ธ๋ก๋ฒ ์ต์ ํ์ธ ๋์ ์ผ๋ก ์ธํด ๊ตญ๊ฐ ๊ฐ ์ ๋ณด๊ตํ ์ฒด๊ณ๊ฐ ํฌ๊ฒ ๊ฐํ๋๊ณ ์์.)
In particular, filing and information exchange obligations have been expanded for(๋ํ์ ์ผ๋ก ์๋์ ์ ์ถยท๊ตํ ์๋ฌด๊ฐ ํ๋๋๊ณ ์์.)
- Country-by-Country Reporting(CbCR)
- GloBE Information Return(GIR)
- Beneficial Ownership Information(์ค์ง์์ ์ ์ ๋ณด)

- ๊นยท์ฅ ๋ฒ๋ฅ ์ฌ๋ฌด์ ใ2026๋ ์ธ๋ฒ ๋ฐ ์ํ๋ น ๊ฐ์ ์ฌํญ์ ์ฃผ์ ๋ด์ฉใ โ ๋ฒ์ธ์ธ์จ ์ธ์, ์ฆ๊ถ๊ฑฐ๋์ธ ํ์, ๊ตญ์ ์กฐ์ธ ๋ฐ VAT ๊ฐ์ ์ฌํญ ์ ๋ฆฌ.
- ํ์ค๋ท ใ2026๋ ์ฃผ์ ์ธ๋ฒ ๊ฐ์ ์ใ โ 2026๋ ์ธ๋ฒ ๊ฐ์ ํต์ฌ ๋ด์ฉ ๋ฐ ๊ธฐ์ ยท๊ฐ์ธ ์ธ์ ๋ณํ ํด์ค.
- OECD ใEconomic Impact Assessment of the Global Minimum Tax 2026ใ โ ๊ธ๋ก๋ฒ ์ต์ ํ์ธ(Pillar Two)์ ๊ฒฝ์ ์ ์ํฅ ๋ฐ ๋์ ํํฉ ๋ถ์.
- OECD Forum on Tax Administration ใGlobal Minimum Tax Implementation Toolkitใ โ ๊ธ๋ก๋ฒ ์ต์ ํ์ธ ์งํ ๋ฐ ์ ๊ณ ์ฒด๊ณ ๊ตฌ์ถ์ ์ํ ๊ฐ์ด๋๋ผ์ธ.
- OECD Pillars Tracker 2026 โ ๊ตญ๊ฐ๋ณ QDMTT(๊ตญ๋ด ์ถ๊ฐ์ต์ ์ธ) ๋์ ๋ฐ Pillar Two ์ํ ๋ํฅ ์ ๋ฆฌ.
- Grant Thornton ใOECD Side-by-Side Pillar 2 Dealใ โ ๋ฏธ๊ตญ๊ณผ OECD ๊ฐ Side-by-Side ํฉ์์ ์ฃผ์ ๋ด์ฉ ๋ฐ ์ํฅ ๋ถ์.
- RSM US ใOECD’s Side-by-Side Packageใ โ ๋ฏธ๊ตญ ๋ค๊ตญ์ ๊ธฐ์ ์ ๋ํ Pillar Two ์ธ์ดํํ๋ฒ ๋ฐ ๊ณผ์ธ ์ํฅ ์ค๋ช .
- Bipartisan Policy Center ใInternational Tax Policy: Where the U.S. Stands and What’s Ahead in 2026ใ โ ๋ฏธ๊ตญ ๊ตญ์ ์กฐ์ธ ์ ์ฑ ๊ณผ OECD ํฉ์ ๋ฐฐ๊ฒฝ ๋ถ์.
- Forvis Mazars Korea ใInheritance & Gift Tax Essentialsใ โ 2026๋ ์์ยท์ฆ์ฌ์ธ ์ ๋ ๋ฐ ๊ฐํธ ๋ ผ์ ์ฃผ์ ๋ด์ฉ ์ ๋ฆฌ.
- OECD FAQ ๋ฐ GloBE Information Return(GIR) ์๋ฃ โ ๊ธ๋ก๋ฒ ์ต์ ํ์ธ ์ ๊ณ ๋ฐ ๊ตญ์ ์ ๋ณด๊ตํ ์๋ฌด ๊ด๋ จ ์ต์ ์ง์นจ.