Every January, the city tells me what it thinks my building is worth. Every March, I get to tell it what I think. That conversation is the most underworked line item in New York multifamily.
The Notice of Property Value lands in the mail and most owners do what I used to do: glance at it, wince or shrug, and file it away. But that notice is not a bill. It is a tentative assessment — the city's opening offer — and opening offers are made to be answered. Whatever number survives becomes the base of your tax bill, and unlike most expenses, this one compounds year after year.
The calendar is what makes this a discipline instead of an inspiration. For Tax Class 2 apartment buildings, the Department of Finance accepts Requests for Review on the tentative value, but the appeal that actually preserves your rights is filed with the Tax Commission, and the deadline is March 1. Not mailed by March 1 — received by March 1. The Commission is explicit that the deadline cannot be extended. Miss it and you are not negotiating this year.
Building the case is ordinary, unglamorous work. It runs on comparable sales, your actual rent roll, and your actual operating income — the real numbers of your building against the value the city estimated. One wrinkle worth knowing: if the building is ten units or fewer, the bar is higher. You have to show your property is worth less than its effective market value, which the Commission computes as the assessed value divided by forty-five percent. Know the bar before you file.
The reason to grieve every year is not that you will win every year. It is the shape of the economics. A reduction to the assessment stays on the roll, so a single successful appeal pays you back every tax bill afterward, not just once. And the professional help — tax certiorari attorneys and firms — generally works on contingency, taking a share of what they save you. When the people who do this for a living will bet their own fee on the outcome, the math is speaking.
None of this is a trick or a loophole. It is the process the city itself built and publishes forms for. The tentative roll is an estimate produced at scale, and estimates made at scale are wrong in both directions on individual buildings. If your building's real value is up and the assessment is fair, a weak case will go nowhere and you will have spent a little effort to learn something. But letting the tentative number roll through uncontested, year after year, is the costliest move available — you are accepting the opening offer by default.
So I treat the January notice the way I treat any other negotiable number in the business: as the start of a conversation, not the end of one. File the review, file the appeal, bring the real numbers, and do it every year. The city is allowed to make its estimate. You are allowed to make your case.
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