What the court ordered
The lawsuit we covered on Sunday has produced its first order. On Monday, August 10, Justice Wayne Ozzi of the Richmond County (Staten Island) Supreme Court granted the three petitioning homeowners a temporary restraining order against the city's rollout of the pied-à-terre surcharge, according to reporting by the New York Post, Politico, the Wall Street Journal, CNN and Fox 5.
Per those accounts, the order requires the city to take down the online lookup list of roughly 900,000 property records, and bars it from taking further action based on that list or on the roughly 17,000 "you may be subject" notices the Department of Finance mailed — at least until the next hearing, set for August 31.
What the order does not do
It does not strike down the tax. The petition never asked for that: it challenges how the city implemented the surcharge, not the statute itself, and the broader constitutional question tracked on our legal challenges page remains unfiled. The surcharge — a flat 4%–6.5% of DOF market value on condos and co-ops over $1 million, and 0.8%–1.3% on one- to three-family homes over $5 million, in any year the property is not someone's primary residence — remains the law, effective July 1, 2026, with the first payments due with the January 1, 2027 bill.
The city has already appealed — the pause may not last the week
A spokesman for Mayor Mamdani said the Law Department "will appeal the ruling immediately, which will stay the order," and that the city "will continue with the pied-à-terre's implementation" — and it moved fast: by Monday night the city had filed court papers to appeal, per ABC7, with the New York Times reporting the administration intended to challenge the ruling within hours. The stay claim is a reference to a feature of New York procedure (CPLR 5519) under which a government appellant's notice of appeal can automatically suspend an order against it while the appeal is heard. As of Tuesday morning no appellate ruling had been reported, and the parties dispute the appeal's practical effect on the order — but owners should assume the pause could be lifted quickly, not treat it as the end of the process.
What about the September 18 deadline?
This is the part of Monday's news that is genuinely unsettled, and press accounts differ. Politico reports the order blocks enforcement of the September 18 exemption-application deadline while it is in effect; the city's own court filing argued a pause "may lull taxpayers into delaying their filings," leaving delayed appeals unprocessed before November bills; and the city's public position is that its appeal keeps implementation — deadline included — on track.
Our guidance is unchanged: act as if September 18 holds. Nothing in the order penalizes an owner for filing early. If the restraining order dissolves on appeal or after the August 31 hearing, owners who kept preparing lose nothing and are on time. Owners who stopped because of a headline could find the deadline restored with days to spare. The step-by-step process is in the notice playbook; the free checker below shows the DOF market value your exposure runs on.
If you already filed a response or appeal
Before the ruling, the city told the court it had received 3,801 submissions challenging its primary-residence determinations, out of what it projected could reach roughly 8,000. While the restraining order is in effect, the city is barred from acting on the notices — which the city itself argued means filed appeals may sit without answers for now. Notably, petitioner Simon Hedley's own appeal had already been approved over the weekend, a day after the case was filed. If you filed, keep your confirmation and records; nothing about the order undoes a submission you already made.
Where this leaves the fight
Monday was the rollout challenge working exactly as its petitioners designed it: the notices and the public list are frozen, and the city must defend the process in court on August 31 — or persuade an appellate court to lift the pause sooner. Governor Hochul, who signed the tax into law, spent the same day distancing Albany from the mechanics, telling reporters "we're not responsible for the rollout" while urging City Hall to "streamline" it. Our tracker follows the docket, the promised appeal, and the constitutional challenge that still hasn't arrived; this news desk and our phone line are updated as each shoe drops.
Questions owners ask
Did the judge strike down the pied-à-terre tax?
No. The temporary restraining order pauses rollout actions — the public lookup list and the roughly 17,000 mailed notices — at least until the August 31 hearing. The statute itself is untouched: the surcharge remains law and first payments are still scheduled with the January 1, 2027 bill.
Does the restraining order cancel the September 18 deadline?
That is genuinely unsettled — press accounts differ, and the city argues its appeal keeps implementation, deadline included, on track. As of our August 12 check the city's website still displays September 18 with live application links. The safe course is to prepare and file by September 18 regardless.
Did the city appeal the restraining order?
Yes — the Law Department filed court papers the same night, per ABC7, asserting that under New York procedure (CPLR 5519) a government appeal automatically suspends the order while it is heard. As of August 12 no appellate ruling had been reported, and the parties dispute the appeal's practical effect.
Sources
- New York Post — Mamdani forced to pause pied-à-terre tax roll-out (Aug. 10, 2026)
- Politico — Judge blocks New York City pied-à-terre tax rollout (Aug. 10, 2026)
- Wall Street Journal — Judge temporarily blocks Mamdani's pied-à-terre tax (Aug. 10, 2026)
- Fox 5 NY — Judge blocks NYC pied-à-terre tax rollout (Aug. 10, 2026)
- ABC7 NY — Judge grants TRO; city files appeal papers (Aug. 10, 2026)
- New York Times — Judge orders city to pause second-home tax rollout (Aug. 10, 2026)
- CNN — NYC homeowners file lawsuit challenging rollout (Aug. 7, 2026)