We Just Work

It takes grit to filter through complexity and distill it down to the heart of the matter. And our clients know it.

Our clients come to us for our multi-disciplinary and innovative approach in solving complex tax matters. In fact, several of our clients have been advised by Sim Ho for over 10 years.

Tenacity, integrity, and brilliance. We Just Work.

What We Do >

S$360 Million TUM*

OSH is pleased to announce that the current actual tax assessment/liabilities under our active dispute management is over S$360M—a 20% increase since July 2016. We are truly humbled by the cases entrusted to us.

*Taxes Under Management (TUM)

We're Tax Lawyers.

And possibly the best in the region. Having all come from top-tier Singapore law firms, our team is well-experienced in all areas of tax with a substantive practice-focus in tax dispute resolution and litigation, tax investigation and tax advisory matters.


Work With the Best

Got a tax matter? Or are you looking to grow yourself?

Get in touch >

Have you heard?


IT’S Here! Our Tax Publication has launched! Check it out and tell us what you think!

Visit its.ongsimho.com >

What’s New