485 Madison Avenue,
9th Floor
New York, NY 10022
Ph: (212) 792-6300
Fax: (212) 792-6350
100 Quentin Roosevelt
Blvd, Suite 516
Garden City, NY 11530
Ph: (516) 542-6300
Fax: (516) 542-9021

Our Team

Michael O’Brien, EA



Michael O’Brien is a Principal in our International Tax practice. He has over 25 years of experience in public accounting, providing international tax services to a wide variety of clients. Michael provides cross-border tax compliance and consulting services to both businesses and private clients. Industries served include High-Net-Worth individuals, Family & Closely Held Businesses, Professional Services as well as Sports, Arts and Entertainment. He advises clients on a range of issues, including income tax planning (pre and post-arrival in the U.S.) as well as the creation or management of foreign and U.S. tax organizational structures to minimize U.S. tax consequences. He also provides advice on international trust and estate tax matters.

Michael received a Bachelor of Business Studies (Hons) degree from Trinity College Dublin and is an Enrolled Agent with the IRS. He is a dual citizen of the U.S. and Ireland and calls Long Island home.