Mr Ong Sim Ho > Drew & Napier LLC > Singapore, Singapore > Lawyer Profile

Drew & Napier LLC

Work Department

Tax & Private Client Services


Managing Director, Corporate & Finance;
Director, Tax & Private Client Services


Sim Ho is the Managing Director of our Corporate & Finance department and a Director in the Tax & Private Client Services practice. Sim Ho began his tax law career with the Inland Revenue Authority of Singapore where he advised the Authority principally on Corporate Income Tax, Goods and Services Tax, and tax treaty negotiations.

Sim Ho is dual-qualified as a lawyer and Chartered Accountant. He is a barrister of England and Wales, called by Lincoln’s Inn, and an Advocate & Solicitor of the Supreme Court of Singapore. He is a Fellow Chartered Accountant in Singapore, member of the Singapore Institute of Directors, an Accredited Tax Advisor for Income Tax and GST of the Singapore Institute of Accredited Tax Professionals, an Alumni Advisory Board member at the Nanyang Business School, NTU, and a member of the Valuation Review Board. Sim Ho also sits on the boards of AIA Singapore Pte Ltd.

Sim Ho’s forte lies in the truly multi-disciplinary approach that he brings to his cases. His approach incorporates legal, finance, risk governance, and accounting perspectives. Sim Ho is also well recognised by clients and peers for his critical and rigorous legal analysis and conceptual thinking towards problem solving. During the past 20 years, he has built a substantive practice-focus in tax litigation and dispute resolution. He also has expertise in oil and gas matters. Clients appreciate his willingness to make judgment calls when it comes to grey areas, as well as his extensive industry experience and commercial perspective.


English, Chinese


  • Member, Law Society of Singapore
  • Member, Singapore Academy of Law
  • Member, Singapore Institute of Directors
  • Member, Alumni Advisory Board at the Nanyang Business School, NTU
  • Member, Valuation Review Board
  • Fellow Chartered Accountant, Singapore
  • Principal Examiner, Taxation, Foreign Practitioners Examination, Singapore Institute of Legal Studies
  • Member, Board of Directors of AIA Singapore Pte Ltd


  • LL.B. (Hons) (London) (1993)
  • B.Acc (Hons), Nanyang Technological University of Singapore (1993)
  • Barrister-at-law, Lincoln’s Inn
  • Advocate & Solicitor of the Supreme Court of Singapore
  • Accredited Tax Advisor for Income Tax and GST of the Singapore Institute of Accredited Tax Professionals
  • Fellow Chartered Accountant, Singapore

Lawyer Rankings

Singapore > Tax: local firms

(Leading individuals)

Ong Sim HoDrew & Napier LLC

Litigation powerhouse Drew & Napier LLC represents clients before tax tribunals and the Supreme Court in relation to goods and services tax, property tax and stamp duties, with additional experience advising on corporate tax advisory, enterprise tax risk management and private wealth planning mandates. Praised as ‘technically strong with great knowledge of clients’ businesses’, the team is led by Ong Ken Loon, who is well-versed in cross- border matters and handles tax disputes with the IRAS, representing clients in appeals before the Singapore courts. Ong Sim Ho maintains a robust tax disputes practice, while Yang Shi Yong is a key contact for task risk management, tax audits and tax investigation cases.

Singapore > Private wealth and family law – local firms

Drew & Napier LLC has developed a sub-specialty within its tax department, which focuses on wealth planning, preservation, and succession through family trusts, family offices, and other structures. It is also noted for advising high-net-worth families and institutions on the creation of philanthropic foundations and trusts. The firm draws on its position as a leader in dispute resolution to frequently act for clients in private wealth disputes. It also has strong connections across Asia Pacific, particularly China and Indonesia. Tax specialist Ong Sim Ho is a senior name in private wealth planning and Randolph Khoo heads the private client disputes group and is noted for his experience in cases involving Chinese entities. Seah Ching Ling is also noted for tax, trusts, and estate planning, while Hoon Shu Mei is rated for private client disputes.