Ryan E. Dunn

Ryan is a member of the Business Law, Mergers & Acquisitions and Tax practices at Murtha Cullina.

Ryan advises businesses and individuals on all aspects of U.S. taxation, focusing on cross-border activities and transactional matters. He also provides domestic tax advice to partnerships, corporations, S corporations and their respective owners on various business transactions, including formations, mergers, acquisitions, internal restructurings and divestitures. Ryan's experience spans a myriad of sectors including technology, finance, cannabis, real estate and advertising.

In his international tax practice, Ryan provides U.S. tax advice to both U.S. businesses with foreign operations and foreign businesses with U.S. operations. Ryan helps these businesses navigate tax treaties and complicated structuring decisions driven by U.S. tax considerations. He has extensive experience with foreign tax credits and applying the U.S. anti-deferral regimes including subpart F and GILTI.

Ryan offers comprehensive pre-immigration tax planning for foreign individuals seeking U.S. residency, as well as advising current U.S. residents on the tax implications relinquishing citizenship or terminating their lawful permanent residency. 

Ryan also has substantial experience with planning for Section 1202 (qualified small business stock) gain exclusions and advising investors and funds on opportunity zone investments.

Ryan has been quoted on international tax issues in The Wall Street Journal, The Washington Post, Tax Notes Today and other media outlets. Prior to joining Murtha Cullina, Ryan was a partner at an international law firm.

Areas of Focus