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Meet Our Legal Professionals

Chang-Joon Jo
Specialist Counsel

chminbin@siwoo-law.com

Tax Policy; Tax Law; National and Local Taxation

Our Professionals

Chang-Joon Jo, Senior Advisor, specializes in national and local taxation. He holds a Ph.D. in Taxation from Kangnam University, and also graduated from Kyonggi University (Law) and Sungkyunkwan University (Graduate School of Business, Taxation).

He has built extensive experience in tax administration and dispute resolution through his public service career, including roles at Bucheon City Hall, the Ministry of Government Administration and Home Affairs, the Supreme Court (Tax Research Office), and the Tax Tribunal under the Office of the Prime Minister, where he served as Administrative Officer and Team Leader before retiring as a Senior Administrative Officer.

In addition, he has served as a lecturer and adjunct professor in taxation and authored numerous publications on tax law and policy. He is currently Chair of the Local Tax Division of the Korean Association of Tax Law and a Tax Advisory Member of the Korea Institute of Local Finance.

At Siwoo Law Firm, he focuses on local tax appeals and tax litigation advisory, leveraging his extensive practical and academic expertise.

Experience

  • Senior Advisor, Siwoo Law Firm
  • Former Senior Advisor, Yulchon LLC (July 2018–December 2023)
  • Former Senior Administrative Officer, Tax Tribunal, Office for Government Policy Coordination (June 2018)
  • Former Administrative Officer, 6th Division, Tax Tribunal, Office for Government Policy Coordination (March 2014–June 2018)
  • Former Head of Mediation Team 3, Tax Tribunal, Office for Government Policy Coordination (March 2012–February 2014)
  • Former Administrative Officer, 6th Division, Tax Tribunal, Office of the Prime Minister (March 2011–March 2012)
  • Former Head of Mediation Team 3, Tax Tribunal, Office of the Prime Minister (March 2009–March 2011)
  • Former Administrative Officer, 6th Division, Tax Tribunal, Office of the Prime Minister (March 2008–March 2009)
  • Former Judicial Research Officer, Tax Research Office, Supreme Court of Korea (March 2006–February 2008)
  • Former Administrative Officer, Local Tax Policy Division, Ministry of Government Administration and Home Affairs (June 2005–March 2006)
  • Former Tax Officer, Local Tax Review Division, Ministry of Government Administration and Home Affairs (March 2004–June 2005)
  • Former Tax Officer, Local Tax Administration Division, Ministry of Government Administration and Home Affairs (June 2001–March 2004)
  • Former Tax Officer, Tax Policy Division, Ministry of Government Administration and Home Affairs (October 2000–June 2001)
  • Former Local Tax Officer, Bucheon City, Gyeonggi Province (April 1995–October 2000)
  • Served as Head of Property Tax, Revenue Collection (Team 1), Assessment (Team 2), Tax Investigation, Tax Administration, Acquisition/Registration Tax, and Tax IT Team
  • Former Junior Administrative Officer, Bucheon City, Gyeonggi Province (April 1988–April 1995)
  • Served in Civil Affairs, Public Relations & Culture, Accounting, Non-Tax Revenue, and Evaluation Divisions
  • Passed the Level 7 National Civil Service Examination (Administrative), 1987

Education

  • - LL.B., Kyonggi University (1987–1994)
  • - M.B.A. in Taxation, Sungkyunkwan University Graduate School of Business (1994–1996)
  • - Ph.D. in Taxation, Kangnam University Graduate School (2019–2023)
  • - Certified Administrative Specialist (2015)
  • - Ph.D. in Taxation (2023)

Awards & Recognition

  • - Korean Association of Tax Law Award (Outstanding Ph.D. Dissertation), 2024
  • - Korean Association of Tax Law Award (Emerging Scholar Award), 2021
  • - Commendation from the Mayor of Bucheon (2021)
  • - Order of Civil Merit (Geunjeong Medal), 2018
  • - Commendation from the President of the Tax Tribunal (Outstanding Decision Award), 2017
  • - Commendation from the Minister for Government Policy Coordination, 2016
  • - Commendation from the President of the Tax Tribunal (Outstanding Adjudicator Award), 2015
  • - Commendation from the Minister of Court Administration, Supreme Court of Korea, 2008
  • - Commendation from the Prime Minister (Model Public Official), 2003
  • - Commendation from the Minister of Home Affairs, 1994
  • - Commendation from the Mayor of Bucheon, 1991

Lectures & Presentations

  • - Lecturer, Department of Business Administration (Taxation), Kangnam University (Local Tax) (1997–2001; 2020–2022)
  • - Instructor, Local Tax Program, Local Government Officials Development Institute, Ministry of Government Administration and Home Affairs (2001–2003; 2014)
  • - Lecturer, Department of Business Administration (Accounting & Taxation), Kyonggi University (2006–2011)
  • - Adjunct Professor, Department of Business Administration (Accounting & Taxation), Kyonggi University (2011–2012)
  • - Chair, Legislative & Administrative Committee; Vice President, Korean Academic Society of Taxation (2019–2021)
  • - Director, Korea Institute of Local Finance (2019–2021)
  • - Chair, Local Tax Law Division; Vice President, Korean Association of Tax Law (2019–2027)
  • - Chair, Local Tax Review Committee, Bucheon City (2018–2022; 2024–2026)
  • - Tax Advisory Member, Korea Institute of Local Finance (2020–2025)
  • - Member, Budget Incentive Review Committee, Bucheon City (2025–2027)
  • - Expert Advisor, Bucheon City Council (2025–2027)

Publications & Contributions

  • - “A Study on the Development Direction of Tax Curriculum,” Sungkyunkwan University Graduate School of Business (1996)
  • - Manual on Local Tax Arrears Management, Ministry of Government Administration and Home Affairs (2004)
  • - Taxes in Modern Life, Sehaksa Publishing (2020–2025)
  • - “A Study on the Tax Base Calculation for Foreign Tax Credits in Corporate Local Income Tax,” Tax Law Review, Korean Association of Tax Law (2020)
  • - “A Study on Issues and Improvement Measures of Special Provisions for Corporate Local Income Tax (Focusing on Tax Credits and Reductions),” Kangnam University Graduate School (2023)
  • - “Issues and Improvement Measures of Special Provisions for Corporate Local Income Tax,” Tax and Accounting Review, Korean Association of Certified Tax Accountants, Sekyungsa Publishing (2025)

Languages

  • Korean
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