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Stephen B. Kass is a New York and New Jersey tax attorney and Certified Public Accountant with an LL.M. in Taxation from New York University School of Law. For more than 31 years he has represented businesses and individuals facing complex IRS and New York State tax problems, with a particular focus on substantial New York sales tax liabilities, offers in compromise, and matters involving tax debt exceeding $100,000. Every engagement is handled personally by Mr. Kass from first consultation through final resolution.
NEW YORK STATE SALES TAX
The firm concentrates on complex, high-balance New York sales tax matters, especially for restaurants and other NYC businesses. Work includes sales tax audit defense, Department of Taxation and Finance offers in compromise, sales tax warrants, responsible-person assessments, and payment arrangements. The firm currently represents clients in NYS sales tax matters with aggregate liabilities at issue, including tax, penalties, and interest, exceeding $22 million.
IRS AND NYS TAX DEBT
For clients with six- and seven-figure balances, Mr. Kass handles IRS and NYS offers in compromise, partial pay installment agreements, currently not collectible status, penalty abatement, levy and lien release, audits, and U.S. Tax Court cases. He also represents clients facing federal passport certification for seriously delinquent tax debt and New York driver’s license suspension for unpaid state tax.
TAX LITIGATION IN BANKRUPTCY
Much of Mr. Kass’s Chapter 11 practice has been driven by tax. He has litigated and settled tax claims in Chapter 11 and Chapter 7 cases against the U.S. Attorney’s Offices for the Southern and Eastern Districts of New York and the U.S. Department of Justice Tax Division, representing IRS Insolvency, and against New York State Assistant Attorneys General and Department of Taxation and Finance counsel. These matters included Chapter 11 plans and claim settlements on terms more favorable than the Bankruptcy Code otherwise requires for priority tax claims. They also included Chapter 7 tax discharges obtained through adversary proceedings against the United States.
BACKGROUND
Mr. Kass began his career in the tax practices of Deloitte & Touche and Bernstein & Pinchuk (now part of Marcum). He served as a legal extern to the Hon. Dorothy T. Eisenberg, U.S. Bankruptcy Judge for the Eastern District of New York. He was Co-Chair of the Consumer Bankruptcy Committee of the New York County Lawyers Association from 1999 to 2021, and presented NYCLA continuing legal education programs on tax issues in bankruptcy. He is co-author of “Discharge of Unfiled Taxes under BAPCPA: No More Super Discharge?” in the American Bankruptcy Institute Journal.
He earned his J.D. from the Maurice A. Deane School of Law at Hofstra University, with University Honors in Taxation, and his LL.M. in Taxation from NYU School of Law. He holds a B.B.A. in Public Accounting, cum laude, from Hofstra University. He is admitted in New York and New Jersey and before the U.S. Supreme Court, the U.S. Tax Court, the U.S. District Courts for the Southern and Eastern Districts of New York, and the U.S. Court of Appeals for the Armed Forces.
Prior results do not guarantee a similar outcome.
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Practice Areas
32 years | 500 cases
32 years | 250 cases
Free Consultation
$0 first 30 minutes
State: New York
Acquired: 1993
No misconduct found
State: New Jersey
Acquired: 1992
No misconduct found
Mobile
Fax
7 Penn Plaza, Suite 830, New York, NY, 10001
sbkass.com/
Other places you can find Stephen online.
17 Client Reviews
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Showing 1 - 5 of 17 reviews
Posted by anonymous | September 30, 2026 | Hired Attorney
Expert, attentive tax attorney
Stephen was an awesome resource to me during a tricky tax situation. He expertly handled navigating the tricky processes around tax law and managed to help me reach a very favorable settlement. I felt 100x more comfortable navigating my situation with Stephen by my side. I highly recommend him to any...
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Posted by anonymous | July 06, 2026 | Hired Attorney
Outstanding Tax Attorney – Highly Knowledgeable and Professional
I had an excellent experience working with Stephen B. Kass. He is extremely knowledgeable in tax law and took the time to explain every aspect of my situation in a way that was easy to understand. His attention to detail, professionalism, and responsiveness gave me a great deal of confidence througho...
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Posted by anonymous | June 25, 2026 | Hired Attorney
A master of his craft, who truly cares about his clients.
It has been a gift to find Steve. I came to him with a very time sensitive situation (with only days to take action) and, after sharing all the details, he immediately went to work on finding a solution. Within weeks, Steve successfully resolved my issue, saving me a massive amount of money and remov...
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Posted by Karl | June 24, 2026 | Hired Attorney
Great Experience and Clear Guidance
Professional, responsive, effective and easy to communicate with. Explained everything clearly and handled my case efficiently. Would recommend.
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Posted by anonymous | June 17, 2026
Best Tax Attorney to help you navigate your obligations
I recently had a consultation with Stephan Kass regarding my tax debt obligations, and it was very reassuring to learn I had options. He was knowledgeable, patient, and very clear in explaining my options. Stephan helped me understand a complicated situation in a way that felt manageable and gave me ...
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"I endorse this lawyer. Stephen is an experienced bankruptcy lawyer that does a great job representing businesses in bankruptcy cases. He also has a special expertise in bankruptcy tax matters."
"I endorse this lawyer:Stephen is an excellent, diligent attorney, who deeply cares about his client's plights and goals, and gives 100% of himself to getting his clients the optimal result achievable for them under their cumstances, at the fairest possible cost. He is a credit to the legal profession, and I am proud to know him."
"I endorse this lawyer. Stephen is an honest an smart lawyer who I have known for a very long time. I would not hesitate to use him."
Bankruptcy and debt lawyer
2026
Distinguished, Martindale-Hubbell
1992
University Honors in Taxation, Maurice A. Deane School of Law
1986
Deans List, Hofstra University
1986
Cum Laude, Hofstra University
1986
Business Honor Society, Beta Gamma Sigma
1986
Accounting Honor Society, Beta Alpha Psi
1985
Provost Scholar, Hofstra University
1994 - Present
Founding Attorney, Law Offices of Stephen B. Kass, PC
1992 - 1994
Senior Tax Consultant, Deloitte & Touche
1990 - 1991
Bankruptcy Extern, Honorable Dorothy T. Eisenberg
1986 - 1989
Senior Accountant, Bernstein & Pinchuk now part of Marcum
1999 - Present
American Association of Attorney-Certified Public AccountantsMember
1999 - 2001
New York County Lawyers' AssociationCo-Chair Consumer Bankruptcy Committee
Case Confirmed and settlements with government
Case confirmed, 363 sale.
Case Confirmed IRS taxes reduced by close to $1M with 6 year payout
Case confirmed
1996
LL.M - Master of Laws Taxation
1992
JD - Juris Doctor
1986
BBA - Bachelor of Business Administration
2003
1999
Solutions for the Bankruptcy Taxpayer
2006
English