State appellate court allows Mamdani's New York City pied-à-terre tax rollout

Lower court had ordered the city to redo tax implementation

The Wall Street Journal reported Wednesday that a state appellate court ruled New York City may proceed with Mayor Zohran Mamdani’s new pied-à-terre tax. The court said the rollout of the surcharge on second homes valued at $5 million or more was legal and could move forward.

The decision reverses a lower-court ruling that had ordered the city to redo its implementation. Justice Wayne Ozzi of Staten Island found that the surcharge unlawfully put the burden on homeowners to prove their residency status when city officials should have verified that information themselves.

Property owners had filed the lawsuit in the summer. Their challenge also covered the Mamdani administration’s publication of an online list of about 900,000 residential properties, including homes that could be subject to the tax.

The property owners alleged that the city caused mass confusion through the release. The list included owners’ names and invited public scrutiny and ridicule, the plaintiffs alleged.

The appellate court said such lists are common for local tax assessors to publish. It also said the plaintiffs had not demonstrated that they suffered harm because of the list’s release, rejecting their challenge to the publication.

The appellate decision addressed two distinct disputes. It reversed the lower court on who must verify residency and rejected the property owners’ claim that publishing the list caused harm.

For New York City, the practical result is that officials can continue rolling out the pied-à-terre tax without the lower court’s instruction to redesign the implementation. The tax targets second homes valued at $5 million or more.

The Wall Street Journal described the decision as a boost to one of Mamdani’s signature policies. The ruling allows the administration to move ahead with the surcharge after a lower court had required the city to rework it.