BDO is one of the leading accountancy network in the world. A worldwide network of public accounting firm, called BDO member firm, serving international clients . With a local presence in 158 territories, wherever you are in the world, BDO is close to your business.

BDO Taiwan is the BDO member firm in Taiwan. As part of BDO International network, we combine and act globally through international expertise with the best available local business and highest quality advisory services.

BDO Taiwan History

Taiwan Union & Co. was established in 1990, when two local CPA firms, Taiwan Union CPA Office (founded in1970) and Hsu Cheng Chou & Co. (founded in 1948) merged to enhance their competitive advantages.

In June 1992, we joined BDO International to conduct business on a global scale, and has been known as BDO Taiwan Union & Co. since. With the business growth of the recent decade, our firm opened two other offices in Taichung and Kaohsiung respectively in 1992 and 2000. BDO Taiwan currently has 17 partners, more than 15 managers, and a workforce of over 200 experts and staff serving our clients’ needs in Taiwan and assisting multinational businesses.

Principle & Objective

BDO Taiwan is a mid-sized CPA firm, an organization that is willing to invest and to meet challenge.

Our Principles 
Excellent ethics \ Professional quality \ Quick response \ Good relationships

Our Objectives 
To adhere professional ethics
To deliver high quality services
To provide timely responses to clients
To build good lasting relationship within the society 


BDO’s global organisation extends across 164 countries and territories, with 111,307 people working out of 1,803 offices – and they’re all working towards one goal: to provide our clients with exceptional service.

Our firms across the organisation cooperate closely and comply with consistent operating principles and quality standards. That means local resources who understand your business, your local and international markets and the specifics of your industry: all backed by a truly global organisation.

The fee income of all BDO firms, including the members of their exclusive alliances, was US$12.8 billion as of 30 September 2022.


BDO’s vision is to be the leader for exceptional client service. This is not about reinventing our profession’s approach to service, but about delivering our services exceptionally well – and delivering that high quality consistently in every office, every country and every territory where we have a presence. No matter where you do business, we have people who can help.

We demonstrate our objectivity and independence when dealing with our clients’ business issues, and this helps us to build relationships based on trust. There are five key components that describe BDO and our consistently exceptional service delivery:

  • CLIENT NEEDS: we anticipate our clients’ needs and are forthright in our views, in order to ensure the best outcome for you
  • COMMUNICATION: we are always clear, open & swift in our communication
  • COMMITMENT: we agree to and meet our commitments, meaning that we deliver what we promise, every day, for every client
  • PEOPLE: at BDO we are proud to provide the right environment for our people to grow and develop – but also the right people to deliver for our clients
  • VALUE: Our experts focus on creating value: we give our clients up to date ideas and valuable insights and advice that they can trust

We  are a global organisation built on local relationships.

We are the most agile and responsive of the global accounting organisations.

We’re big enough to be able to access the best group of experts for your needs from our national and international network, and we’re small enough to be responsive and innovative in how we tackle our clients’ challenges. We can provide the perfect contact for your needs,  no matter where in the world you are.


BDO is founded on the culture that people and relationships matter.

We listen to our clients and give each client a more devoted level of service– nothing short of exceptional.

Our strength lies in our people – the experience and the insights they bring to every engagement. The services we provide are backed by local expertise and global resources. We believe that our new ideas and innovative thinking help clients achieve their objectives and contributes to their commercial success. 

We are continually expanding our global presence to incorporate strategically important markets. The fee income of the member firms in the BDO network, including the members of their exclusive alliances, was $7.6 billion as of 30 September 2023. These firms have representation in 166 territories, with over 115,661 people working out of over 1,776 offices worldwide.

BDO Global Statistics 2023