Louis Vlahos
Partner
Louis Vlahos
Partner
Lou’s tax practice encompasses planning and transactional work, as well as tax controversy, for businesses and their owners. A critical thinker who studies history and public policy, Lou knows that tax laws and regulations haven’t evolved in a vacuum. They must be interpreted with an understanding of their origins and goals. His favorite professional activity is educating clients and fellow attorneys.
Contact
Email: [email protected]
Phone: (516) 357-3343
Fax: (516) 357-3333
926 RXR Plaza
Uniondale, NY, 11556-0926
Practice Groups
Bar Admission
New York
Louis Vlahos practices tax law. He has extensive experience in corporate, individual, and partnership income taxation, and in estate and gift taxation, including tax planning, ruling requests, and tax controversies.
He advises clients in connection with corporate organizations and reorganizations; sales and acquisitions of businesses; corporate distributions, redemptions, liquidations and spin-offs; shareholder and buy-sell agreements; partnership organizations, agreements, reorganizations, distributions, and other transactions; real estate sales, exchanges and operations; executive deferred compensation arrangements; estate and succession planning, including the transfer of business interests, and estate and gift tax audits; New York business tax issues; charitable giving; tax-exempt organizations; private foundations; and not-for-profit restructuring. He frequently writes about tax law as it applies to closely held businesses.
Lou counsels not-for-profit corporations in connection with reorganizations. He has advised cultural institutions, hospitals and other nonprofit organizations on their tax-exempt status, corporate restructuring, the creation and operation of supporting organizations (including fundraising entities), the structuring and acceptance of charitable gifts (including charitable trusts), compensation and other excess benefit issues, deferred compensation arrangements, and the taxation of unrelated business income.
Additionally, he has lectured on subjects such as corporate transactions and tax issues in the not-for-profit community, and he has written for various legal publications.
Lou is the author of the award-winning blog, “TaxSlaw.” Click here to read and subscribe.
Court Admissions
U.S. Tax Court
Bar Affiliations
American Bar Association
Nassau County Bar Association
New York State Bar Association
Queens County Bar Association
Suffolk County Bar Association
Education
New York University School of Law, LL.M. in Taxation
Harvard Law School, J.D.
Columbia College, A.B.
News & Publications
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Over 25 Percent of Rivkin Radler Attorneys Recognized by Best Lawyers in America®
August 21 | 2025 -
Vlahos Earns JD Supra Readers’ Choice Award
March 3 | 2025 -
Vlahos and Sinensky to Present on Tax Implications of M&A Transactions
February 4 | 2025
View All Publications
Lou is a member of the Estate Planning Council of Nassau County and a former member of the IRS Taxpayer Advocacy Panel (TAP).
Super Lawyers recognized Lou as a Top Rated Tax Attorney from 2013 to 2023. In 2024, he placed No. 1 on the topic of tax law in JD Supra’s Reader’s Choice Awards and No. 2 from 2021 to 2023. Additionally, Lou was named to Best Lawyers in America® for Tax Law from 2023 to 2026.
Lou received the Cornerstone Award from the Lawyers Alliance of New York. Since 1997, Lawyers Alliance has presented Cornerstone Awards annually to a select group of individuals and institutions that have made extraordinary contributions through pro bono legal services.
