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Ken Loon Ong

Work +65 6531 4106
Drew & Napier LLC

Work Department

Tax & Private Client Services


Head, Tax & Private Client Services


Ken Loon has a decade of experience and is recommended as one of Singapore’s leading tax lawyers by The Asia Pacific Legal 500 and Practical Law Company Which Lawyer?.

She advises on tax aspects of corporate transactions, such as income tax, GST, stamp duty, and property tax. She assists clients with tax audits and resolves tax disputes through negotiations with the IRAS and represents clients before the tax tribunals and Singapore courts.

Her clients come from across business sectors. She advises local and multinational corporate groups, financial institutions, and investment funds on a broad range of transactions, including mergers and acquisitions, corporate structures and restructurings.

In addition, Ken Loon works with private clients to provide solutions to complex tax, succession and private wealth management issues.

Before joining Drew & Napier in 2008, she was a Principal Legal Officer in the Law Division of the Inland Revenue Authority of Singapore.




  • Member, Law Society of Singapore
  • Member, Singapore Academy of Law
  • Member, Study of the Tax Ecosystem and Practices in Singapore (STEPS) Implementation Committee


  • LL.B. (Hons), National University of Singapore (2001)
  • Admitted to the Singapore Bar in May 2002


Private wealth

Within: Private wealth

Drew & Napier LLC's team provides a comprehensive service to high-net-worth and corporate clients, which includes specialist tax advice, and assisting with wealth planning and preservation and the structuring of trusts. It is also skilled in areas such as the establishment of philanthropic foundations and trusts, where it is also noted for its specialist tax advice. Ong Ken Loon leads the practice. David Chee advised Temasek (as settlor of the Temasek Trust) on a restructuring of the Temasek Community Foundation, which involved  streamlining the structure and tax, corporate and charitable status considerations.

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Singapore: Tax

Tax – Local firms

Within: Leading individuals

Ong Ken Loon - Drew & Napier LLC

Within: Tax – Local firms

Drew & Napier LLC handles a wide range of contentious and non-contentious work, from tax investigations to tax disputes and private wealth planning, with real estate-related tax issues a particular strength. On the contentious side the practice is active in tax disputes with the IRAS and in appeals before the tribunals and courts. It is 'very responsive, quick on the uptake and provides in-depth and relevant legal advice that works in real life'; 'its lawyers have sharp business acumen and provide commercially practical advice'. Ong Ken Loon is a 'go-to person for any tax dispute work' and particularly rated for her 'professionalism and knowledge'.

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