New York Tax Attorneys

New York City Tax Attorneys

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New York City Tax Attorneys - Manhattan Tax Attorneys

Since 1961, the New York tax attorney firm of Mackay, Caswell & Callahan, P.C. has represented clients with respect to IRS & NYS tax audits, collection actions and other complex tax matters.

Who We Are

Mackay, Caswell & Callahan, P. C. is a professional corporation 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.

What We Do

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.

How we do it

The New York tax attorneys at Mackay, Caswell & Callahan handle all aspects of tax controversies with the IRS, New York State and New York City including audit representation, collection defense, civil tax litigation, and criminal tax defense. We are committed to achieving the best results for our clients as efficiently as possible, with straight talk and effective solutions.

Trust Us

Our tax attorneys in NYC, and throughout New York, know that to successfully obtain tax relief for our clients, we need to take the time to gain a full understanding of the complexities of each client's unique tax issue.

Our business law practice offers counsel to public and private companies, lenders and financial institutions, business owners and shareholders.

  • Breach of contract
  • Selling businesses
  • Buying businesses
  • Probate services
  • Powers of attorney
  • Health care proxies
  • Business formation
  • Criminal tax investigations
  • Audits and collections

Practice Areas

New York Tax Lawyers

New York/Connecticut Tax Lawyer

NY and IRS tax audits, an IRS levy, tax lien, and innocent spouse relief all require representation from experienced tax attorneys. You need a tax attorney who can battle the government on your behalf.

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Business Lawyers

Business Lawyers

As a business law firm, our business lawyers work to minimize your company’s exposure to risk while maximizing the value of your investment. As a business owner, you must keep your company’s bottom line in mind at all times.

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How can I help you?

You can contact us using this form day or night, 24 hours a day, 7 days a week, 365 days a year. You will hear back from one of our attorneys the same day or next day.

If you would like to speak with a team member immediately, we are available 24/7 via this form — or via phone toll-free from 6am – 8pm EST M-F at: 844 - MCC - 4TAX


New York City tax attorney

New York City New York

10 East 39th Street, Suite 901
New York, NY 10016

(212) 281-6781

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