Recognized in Best Lawyers since 2023 
Kevin M. Flynn is a forceful advocate with proven skills in litigating federal civil and criminal tax controversies for clients with complex tax challenges. Mr. Flynn’s particular experience in civil tax issues has led to him trying and winning numerous tax cases involving a broad range of corporate, partnership, personal income tax, and employment tax issues. Mr. Flynn’s strong negotiating skills and business judgment have allowed him to achieve extraordinary results for clients at all levels of the Internal Revenue Service administrative process.
Mr. Flynn also defends clients in civil and criminal tax administrative proceedings and litigation involving New York State and New York City taxes. Mr. Flynn’s litigation experience includes many New York State and City tax cases involving individuals, corporations, partnerships, estates, sales, and use taxes, tobacco taxes, employment taxes, real property taxes, residency, and income allocation issues, and penalty disputes.
Before Kostelanetz LLP, Mr. Flynn had a distinguished career in government service. Mr. Flynn was a Special Trial Attorney for the Office of Chief Counsel of the Internal Revenue Service in New York City. Before joining the IRS, Mr. Flynn served as an Assistant District Attorney prosecuting felony cases in Massachusetts.
In addition to his Best Lawyers recognition, Mr. Flynn has been recognized by “New York Super Lawyers.” He also was awarded “Attorney-of-the-Year”, North Atlantic Region, while at the IRS.
