The New York City Tax Appeals Tribunal is the independent agency where you contest a city business or excise tax bill after the Department of Finance issues a Notice of Determination. It sits apart from Finance, so the office that assessed the tax does not get the final word on whether it is correct. You have 90 days from the notice to file a petition, and that deadline is unforgiving: miss it and the assessment becomes final.
Which Taxes the Tribunal Hears
The tribunal’s authority comes from Title 11 of the New York City Administrative Code and covers the city’s business and excise taxes, including the General Corporation Tax, Unincorporated Business Tax, Commercial Rent Tax, Real Property Transfer Tax, Hotel Room Occupancy Tax, Banking Corporation Tax, Utility Tax, and Cigarette Tax.1The City of New York. About Tax Appeals Tribunal
One boundary matters up front. Real property tax assessments do not go to this tribunal. Those are handled by the separate New York City Tax Commission.1The City of New York. About Tax Appeals Tribunal
The 90-Day Deadline
The clock starts on the date printed on your Notice of Determination (or, less commonly, Notice of Deficiency). You have 90 days to file with the tribunal. If the notice is addressed to a taxpayer outside the United States, the window extends to 150 days.2New York City Department of Finance. Business Audits Neither deadline can be extended. Once it passes, the Administrative Code fixes the tax, interest, and penalties as “finally and irrevocably” due, with no administrative or judicial review of the amount available afterward.3NYC Administrative Code. New York City Administrative Code 11-1106 Determination of Tax
If you mail your petition through the U.S. Postal Service, the postmark counts as the filing date under the “timely mailed, timely filed” rule. The risk sits with you: an illegible or late postmark makes the petition late no matter when you dropped it off. Petitions sent by courier or messenger are filed on the date of actual delivery.4New York City Tax Appeals Tribunal. Rules of Practice and Procedure of the New York City Tax Appeals Tribunal
Trying a Conciliation Conference First
Before petitioning the tribunal, you can request a conciliation conference through the Department of Finance’s Conciliation Unit. It is an informal meeting with a conciliator who is independent of the Audit Division, and no representative is required.5New York City Department of Finance. Business Audit Conciliation Conference
Conciliation is optional. You can skip it and file with the tribunal directly, or try it first. If you request a conference, the 90-day clock for filing a tribunal petition pauses until a conciliation decision is issued or you withdraw.6NYC Administrative Code. New York City Administrative Code 11-124 Conciliation Conferences
Three outcomes are possible. You and Finance agree, and you pay the adjusted amount or take a refund. You reach no agreement and the conciliator issues a decision confirming the original determination, at which point you have 90 days from the mailing of that decision to petition the tribunal. Or you withdraw. Conciliation decisions are not published and do not create precedent, which can make candid negotiation easier.5New York City Department of Finance. Business Audit Conciliation Conference
Filing the Petition
The tribunal uses Form TAT-P, downloadable as a PDF from its website. You enter identifying information, the tax periods in dispute, the amounts contested, and a statement of why Finance’s determination is wrong on the facts or the law. Attach a copy of the Notice of Determination, or the Conciliation Order if you went through conciliation first.7NYC.gov. Forms – Tax Appeals
The tribunal does not accept electronic filing. Print the form, sign it, and mail or hand-deliver it to the tribunal’s Manhattan office. Forms can be requested by phone at (212) 669-2070.7NYC.gov. Forms – Tax Appeals
You cannot initiate a case on your own. The tribunal has jurisdiction only after Finance issues a Notice of Determination or Notice of Deficiency, or after a conciliation decision is issued.2New York City Department of Finance. Business Audits
Small Claims or Formal Hearing
The tribunal runs two tracks. Smaller disputes can go to a small claims proceeding, which is less formal and conducted by a presiding officer rather than an Administrative Law Judge. The decision is final and binding on both sides, meaning no further appeal within the tribunal.
Larger or legally complex cases go to a formal hearing before an Administrative Law Judge. This is the standard path for most contested audit assessments and the only one that preserves your right to appeal to the tribunal’s commissioners.
The Hearing and Who Has to Prove What
At a formal hearing, you and the Department of Finance present documents, testimony, and legal argument to an Administrative Law Judge, who issues a written determination applying city tax law to the record.
The burden of proof sits with you. You are the one who has to show Finance got it wrong. Finance carries the burden only in narrow situations:
- Fraud allegations, where Finance must prove intent to evade tax
- Transferee liability, where Finance must prove you are liable as a transferee of another taxpayer’s property
- Certain deficiency increases asserted after the original notice was mailed
- Specific penalty assessments
In every other scenario, an inconclusive record means the assessment stands.8NYC Administrative Code. New York City Administrative Code 11-680 Petition to Tax Appeals Tribunal Documentation is what wins these cases; vague objections without records lose them.
Appealing the ALJ Decision
If either side disagrees with the Administrative Law Judge, the next step is filing an exception, which sends the case to the tribunal’s commissioners. The full panel reviews the hearing record and can affirm, reverse, modify, or send the case back for further proceedings.8NYC Administrative Code. New York City Administrative Code 11-680 Petition to Tax Appeals Tribunal Their decision is the final word inside the city’s administrative system.
Judicial Review in Court
A taxpayer who disagrees with the commissioners can seek judicial review through an Article 78 proceeding. The case goes directly to the Appellate Division, First Department, of the New York State Supreme Court, not to a trial court.9NYC.gov. NYC Tax Appeals Tribunal – Decisions, Determinations and Orders Under CPLR Section 217, the proceeding generally must be commenced within four months after the tribunal’s decision becomes final and binding.10New York State Senate. New York Laws CVP Article 2 – 217
The court reviews whether the tribunal’s decision was supported by substantial evidence and whether the law was properly applied. It does not re-hear the case, so the record you built at the tribunal is what the court works from.
Representing Yourself or Hiring Help
You can represent yourself. Under New York’s Administrative Procedure Act, anyone appearing before an agency has the right to be accompanied and advised by counsel, and because tribunal hearings are not courts of record, the rules around who may appear are less rigid than in court. The proceedings still follow structured rules of evidence and procedure, and Finance will be represented by experienced attorneys.
Attorneys, certified public accountants, and enrolled agents are the professionals typically authorized to handle tax controversies. If you use a representative, note that the tribunal has its own Power of Attorney form and will not accept the New York State Department of Taxation and Finance’s POA-1.7NYC.gov. Forms – Tax Appeals
If You Miss the Deadline
If you receive a Notice of Determination and do nothing within 90 days, and you did not request conciliation to pause the clock, the assessment becomes “finally and irrevocably” fixed under the Administrative Code.3NYC Administrative Code. New York City Administrative Code 11-1106 Determination of Tax Finance can pursue collection through liens and bank levies, and no administrative remedy remains. There is no mechanism to reopen the deadline after it passes, which is why calendaring that 90-day date the moment a notice arrives matters more than any other step in the process.