Global Reach, Personalised Attention
Headquartered in Singapore, HTJ is a member of Moores Rowland International, a 1,500-strong international tax network with offices in over 30 countries. It means local expertise almost anywhere your life or business lands, without handing your file to a faceless global machine.
The Reach of a Network, the Attention of a Small Firm
Local Expertise, Everywhere
When your situation touches a new country, there is usually a member firm on the ground who knows the local rules, so your international plan and your local plan are actually aligned.
One Relationship, Many Jurisdictions
You deal with Derren's team, not a dozen disconnected advisers. The network coordinates behind the scenes so you're not the one holding the pieces together.
Responsiveness
Being part of the network gives HTJ a level of flexibility, responsiveness and customer-centricity that larger practices cannot match. You get answers, not a ticket number.
Scale Where You Need It
On the Ground Where US Persons Need Us
A snapshot of the offices we work through most often. The dedicated country pages go deeper; the full directory lives on the contact page.
Our International Tax Service Has Been in Practice Since 1980
Led by Derren Hayden Joseph, Managing Partner
- Chair, Tax Working Group — Moores Rowland International
- Harvard University, Comparative Tax Program
- Admitted to practice before the IRS
- IRS Certified Acceptance Agent (ITINs)
2,000+ reviews across 20 countries·30+ offices on 5 continents·In practice since 1980
Member of, and accredited by
Member of the AICPA
Member firm of Moores Rowland International
Member of the Florida Institute of CPAs
Member firm of ITPA
Member firm of IBSA
Member of the Worshipful Company of Tax Advisers
Authorized IRS E-file provider
Member firm of TTN
Member of AmCham Singapore
Member of AmCham Dubai
Member of AmCham Philippines
Independently verified on Google — every office, every review.
Wherever Your Situation Lands, so Does the Team
Tell us where your life or business crosses borders. A specialist reviews it and tells you honestly how HTJ, and the network behind it, can help.
Talk to a specialist
