Deadline September 18, 2026
File the exemption application with the Department of Finance and show that somebody uses the property as their primary home. The deadline was extended to September 18, 2026.
Getting a letter doesn’t mean you owe anything. The city mailed them wherever its own records couldn’t confirm that somebody lives there, and most owners who send back the right documents are finished with it.
On August 1, 2026 the city announced a four week extension. Owners who received a “You may be subject to…” notice now have until September 18, 2026 to submit an exemption application.
There are separate applications for residential homes and condos and for cooperative units. Both close on the same date. The city’s page is nyc.gov/npsurcharge, and 311 will walk you through it.
If you’re still working out whether the surcharge reaches you at all, start with the thresholds and exemptions for Brooklyn houses.
It depends on who lives there. For every person you name as using the property as a primary residence, you’ll provide a recent federal or state tax return, or a driver’s license or other DMV identification. If neither exists, a voter ID card plus other proof of primary residence.
Then add the layer that matches your situation.
| Who lives there | Extra documents |
|---|---|
| A tenant or subtenant | Current lease plus one rental document such as a utility bill, proof of rent payment or renter’s insurance. Or a tenant affidavit plus two rental documents. |
| An immediate family member | Proof of the relationship: birth certificate, marriage certificate, or the immediate family member affidavit. |
| A majority owner of an LLC, corporation, trust or partnership | The operating agreement, trust agreement or affidavit, or articles of incorporation, plus the majority interest affidavit. |
Source: NYC Department of Finance, non-primary residence property surcharge documentation requirements.
This is the detail worth reading twice, because the two routes don’t mix.
The exemption application goes to the Department of Finance. That’s the straightforward path when somebody genuinely lives at the property. Arguing that the city valued your property wrong is a different thing, and that goes to the New York City Tax Commission.
You can ask the Tax Commission to review the primary residence question instead. But if you do, you must also file a challenge to your property’s value, and you will not be able to apply for an exemption from the Department of Finance. Pick the wrong door and you’ve given yourself the harder case.
For most owners with a straightforward primary residence situation, the Department of Finance application is the one to file.
The Department of Finance reviews your documents and sends a determination letter and an email telling you whether the exemption was approved.
If it’s denied, you can then apply to the Tax Commission to appeal that determination. If the surcharge does end up applying, it shows on the property tax bill due January 1, 2027.
Missing September 18 isn’t the end of it either. The Tax Commission route remains available before the tax is levied, but it’s a heavier process than sending in a lease and a tax return this month.
For the wider picture, our 2026 rules overview covers this surcharge alongside the ADU changes and the rent freeze.
Yes, if you received a letter. The city sent notices where its records couldn’t confirm primary residence, including cases where a co-op or condo abatement was in place without a sufficient tax filing on record. Ignoring it is the one move that costs you.
Most primary residence cases are a document upload. Where an entity, a trust or an estate is involved, or where the property value itself is the argument, talk to your attorney or accountant. We’re happy to point you toward what the city is asking for, but we don’t give tax or legal advice.
Then the surcharge likely applies, and the decision becomes financial. Renting it to a full-time tenant generally removes it. So does selling. The co-op and condo page walks through how the yearly cost compares at different values.
You’re already on the roll the city published on July 24, 2026, along with every one, two and three family home and every co-op and condo property in New York City. Being listed there isn’t a finding of anything. What counts is whether a letter came to you.
Once the paperwork is handled, the real question is what the property is worth and what it costs you to hold. We’ll give you both numbers.
Deadlines, documents and process come from the NYC Department of Finance and the NYC Tax Commission. General information about a city process, not tax or legal advice.
