A Staten Island judge temporarily paused Mayor Zohran Mamdani’s pied-à-terre tax, which levies a surcharge on luxury second homes in New York City. The ruling came from a lawsuit filed by homeowners who argued the city’s rollout created "mass confusion" and did not provide proper notice, placing the burden on property owners to prove they were exempt. Attorney Randy Mastro, representing the homeowners, claimed the city’s method of notifying 17,000 alleged second-home owners was insufficient and that a publicly posted online database of 900,000 property owners was an improper way to proceed.

Staten Island Supreme Court Judge Wayne Ozzi agreed with the plaintiffs, stating that the city failed to conduct "individualized statutorily-required initial determination" before issuing notices. He also annulled the city's mailed notices and any determination that they constituted proper notice. The judge stressed that the underlying case of the tax's legality is not yet decided, but found the plaintiffs were likely to succeed on the merits due to the city's procedural missteps.

Mamdani’s office disagreed with the ruling and immediately filed an appeal. This appeal effectively halts Judge Ozzi’s pause, allowing the city to continue with the implementation of the tax as planned. A spokesperson for Mamdani, Matt Rauschenbach, stated confidence in both the surcharge and the city’s ability to implement it fairly, noting that only about 17,000 homeowners out of 8.5 million in the city are potentially affected. The city anticipates collecting approximately $500 million in revenue from this tax.

The tax applies to second residences, specifically condos valued at at least $1 million and single-family homes valued at at least $5 million. The tax progressively increases with home value, reaching up to 1.3% of a single-family home’s value for those over $25 million and 6.5% for condos or co-ops valued over $5 million. Exemptions include primary residences, certain family members, and units rented or sublet under an arm’s-length lease of at least one year.