Mackay, Caswell & Callahan,P.C

Mackay, Caswell & Callahan, P. C. is a professional corporation of tax attorneys in NYC, and throughout much of New York State, focused on IRS and New York tax controversies. Attorney Joe Callahan leads Mackay, Caswell & Callahan and brings a high level of diverse tax experience to bear on behalf of our clients.
Founded in 1961, we are New York tax attorneys with a well-established reputation with the New York State, New York City and IRS tax communities and offer a comprehensive understanding of the internal workings of governmental tax agencies. We confidentially navigate tax agency procedures and avail our clients of all administrative and judicial remedies.