Patrick J. Duffany

Patrick J. Duffany is the Managing Partner of CohnReznick’s tax practice.  He has more than 25 years of public accounting experience, including 17 years as the lead state and local tax (SALT) professional for multinational and multistate companies while with a “Big 4” firm.  Prior to taking over as CohnReznick’s senior tax partner, Patrick was the partner in charge of the firm’s National Tax and State & Local Tax Services practices.  

In addition to his role as Managing Partner - Tax, Patrick continues to provide state and local tax services to clients and provides support to service teams across the firm, ensuring the delivery of tax services to some of the firm’s most complex clients.  He provides guidance and assistance with matters in connection with various state and local taxes, including income/franchise, sales and use, conveyance, property, and gross receipts taxes. He is a frequent speaker and author on a wide range of state tax topics.

Patrick initiated and managed the implementation of sophisticated and complex corporate restructurings and assisted with other transaction-related tasks, including due diligence and post-merger integration issues. He has significant experience representing clients before state tax authorities including audit, refund claims, voluntary disclosures, appeals, ruling requests, and petitions, and with respect to various issues and areas such as forced combination, unitary business, discretionary authority provisions, apportionment, and alternate apportionment methodologies.

Patrick regularly participates in working groups with the Connecticut Department of Revenue Services and is an active member of the Marine Corps League.