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Join Our Tax Team. Connect Your Practice Globally.


CST International is a network of firms advising Global Executives, Global Founders, Global Families and Global Small-Medium Enterprises (SMEs).

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Advise the 3% Changing the World.


CST International is a network of firms advising Global Executives, Global Founders, Global Families and SMEs.

OUR MARKET FOCUS

GLOBAL EXECUTIVES

Globally Mobile C Suite Executives face increasing challenges in taxation as they move across international borders for their work.

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Global Founders

Global Founders face increasing complexity given the evolution of international tax laws, whether expanding their business or moving themselves.

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Global Families

Global Families need multi-jurisdictional expertise and sound technical advice when investing internationally.

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Global SMEs

Global SMEs have tremendous opportunities for growth in the internet age - but they face larger tax risks than ever before.

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HEAR FROM OUR CST PARTNERS

Our partners and principals love the opportunities they have as part of CST International.

I love international tax....so CST was the perfect fit for me

Jurate Gulbinas


Read Jurate's CST story All partner stories
We all work together amongst the offices and are able to service the client not just in my market of Singapore but globally

Boon Tan


Read Boon CST story All partner stories

HOW WE CAN HELP

BENEFITS OF JOINING CST INTERNATIONAL

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WHY CST

HISTORY & FOCUS

Throughout our history we have focused on our client’s affairs with passion, empathy and accountability. In founding the CST International network we have captured the passion of the CST Way and built high growth accounting firms in the process.

Why CST

Purpose, Vision & Values

“Built into our firms DNA was the need to go the extra-mile for our clients and to think about questions that we would want answers to if the roles were reversed and we were the client” CST Way

Why CST

The CST Way

The CST Way, written by CST’s founder, John Marcarian, is a personal tale of helping clients living and working in Expatland, a country of more than 244 million residents living away from their country of. The CST Way provides insights on developing professional relationships, working with clients, and building a successful global practice.

Why CST

Media & News

CST is actively provides thought leadership in relation to cross border issues for accounting firms and clients alike. Follows us for updates and new.

  • WHY CST

    HISTORY & FOCUS

    Throughout our history we have focused on our client’s affairs with passion, empathy and accountability. In founding the CST International network we have captured the passion of the CST Way and built high growth accounting firms in the process.

    HISTORY & FOCUS

  • Why CST

    Purpose, Vision & Values

    “Built into our firms DNA was the need to go the extra-mile for our clients and to think about questions that we would want answers to if the roles were reversed and we were the client” CST Way

    Purpose, Vision & Values

  • Why CST

    The CST Way

    The CST Way, written by CST’s founder, John Marcarian, is a personal tale of helping clients living and working in Expatland, a country of more than 244 million residents living away from their country of. The CST Way provides insights on developing professional relationships, working with clients, and building a successful global practice.

    The CST Way

  • Why CST

    Media & News

    CST is actively provides thought leadership in relation to cross border issues for accounting firms and clients alike. Follows us for updates and new.

    Media & News

insights & expertise

CST blog

April 17, 2019

The Road to OZ

Recently the head of CST Tax Advisors in Sydney, Matthew Marcarian and Boon Tan (head of CST Singapore) published an...

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