Mr. Blessing is the Associate Chief Counsel (International) in the office of Chief Counsel, Internal Revenue Service. He oversees an office of 95 attorneys and other professionals responsible for legal advice, guidance, and support to the IRS, Treasury, and the public on international tax issues in all procedural postures.
Prior to joining Counsel, Mr. Blessing practiced as a member of the International Tax unit and the Complex Transactions unit within the Washington National Tax practice at KPMG LLP. He was a partner for over 25 years with Shearman & Sterling LLP, where his practice focused on international tax matters and financial institutions. Mr. Blessing received his B.A. from Princeton University. He received his J.D. from Columbia Law School and his LL.M (Taxation) from New York University School of Law.
Mr. Blessing has served as the President of the USA Branch of the International Fiscal Association (2016-18), Chair of the New York State Bar Association Tax Section (2010), Chair of the International Bar Association Taxes Committee (2010-11), Vice Chair Government Relations of the ABA Tax Section (2014-16), and President of the International Tax Institute, and has taught as an adjunct law professor at Columbia Law School (2008-11) as well as classes at NYU School of Law. He has authored numerous articles and texts on taxation, including a treatise on US income tax treaties. Mr. Blessing graduated from Princeton University, Columbia Law School and New York University School of Law (LLM Taxation). He was a member of the PSC of IFA (2010-2016) and has served as a member of the Jury for the Mitchell Carroll Prize 2013 to present.
 The views expressed in the GTTC by Mr. Blessing are in his personal capacity and do not necessarily represent the views of the Internal Revenue Service or any other organization.