Suhyun Yoo is a senior tax advisor with extensive experience in tax investigations, statutory interpretation, and tax dispute resolution. After graduating from the National Tax College of Korea (Domestic Taxation, Class 15), he served for approximately 14 years at the National Tax Service (NTS), including roles at Mapo Tax Office, Samsung Tax Office (Corporate Income Tax Division), the Seoul Regional Tax Office Investigation Bureau, and the NTS Legal Affairs Review Bureau, where he was responsible for authoritative tax rulings and statutory interpretation. During this period, he established a strong reputation for his expertise in complex tax investigations and regulatory analysis.

 Following his public service career, he held senior leadership roles in the tax practices of leading professional firms, including KPMG Samjong Accounting Corp., Yulchon LLC, Gaon LLC, and Trinity Law Firm, serving as Head of the Tax Practice and Partner. He has successfully led numerous high-profile tax audit defense and tax appeal matters for major Korean conglomerates—such as Hyundai Engineering & Construction, Samsung C&T, Daelim Industrial, and SK Engineering & Construction—as well as multinational corporations including Amazon, Lone Star, and Janssen Korea.

 He currently serves as a Senior Advisor to Haerim Accounting Corporation and as Vice President of HKL Tax Corporation. Leveraging his extensive hands-on experience and deep expertise in tax law interpretation, he provides strategic tax advisory services to both corporate and individual clients. He is particularly recognized for his expertise in international taxation and cross-border estate and gift tax planning for overseas Koreans, including citizens and permanent residents, integrating Korean and foreign tax regimes.

 With more than 27 years of professional experience, Suhyun Yoo supports clients in navigating complex tax environments while achieving both legal certainty and tax efficiency, and is widely regarded as a trusted and highly respected tax professional.

• 2025~ Senior Adviser / Ph.D in Law, Haerim Accounting Corporation

• 2025~ HKL Tax Corporation

• 2022~2025 Trinity Law Firm 

• 2021~2022 Gaon Law Firm 

• 2013~2021 Yulchon LLC 

• 2011~2013 KPMG Samjong Accounting Corp. 

• 2006~2011 Legal Affairs Review Bureau, National Tax Service 

• 2001~2006 Investigation Bureau, Seoul Regional Tax Office 

• 2001~2002, 2005 Secondment to the Seoul Central District Prosecutors’ Office and Supreme Prosecutors’ Office 

• 2000~2001 Corporate Income Tax and Property Tax Divisions, Samsung Tax Office 

• Tax audit defense for corporate tax and inheritance/gift tax (including source-of-funds investigations)

• Tax advisory for real estate development projects

• International taxation

• Cross-border estate and gift tax planning for overseas Koreans (citizens and permanent residents)

• Pre-assessment review procedures

• Tax appeals and administrative litigation support

• Advisory on foreign financial account reporting (FBAR) and FATCA compliance

• Advisory on penalties related to non-reporting of foreign financial accounts

• U.S. (IRS) tax filing and compliance advisory

• Domestic Tax Advisory: Provided tax advisory services to major Korean corporations and institutions, including Samsung SDI, POSCO Daewoo International, Daewoo Shipbuilding & Marine Engineering, Hyosung Group, Homeplus, Woori Investment & Securities, Hyundai Kefico, KAL Hotel Network, Kolmar Korea, Harim, Hoban Construction, Hannam The Hill development entities, Dankook University, real estate development companies, and real estate investment funds

• International Tax Advisory: Advised multinational corporations and financial institutions including Lone Star, Amazon, Agoda, Janssen Korea, Johnson & Johnson Medical Korea, Johnson & Johnson Sales Korea, Korin Industries, Hahn & Company, PTC Korea, British American Tobacco Korea, Songdo International City Development, Deutsche Bank, BNP Paribas, RBS, Credit Suisse, UBS Securities, and Cardif Life Insurance

• Estate and Gift Tax Advisory: Represented high-net-worth individuals and media company owners in tax audit defense and provided cross-border estate and gift tax planning services for overseas Koreans (citizens and permanent residents)