New York City's controversial pied-a-terre tax reaches a critical marker today, as the October 6 deadline for property owners to challenge their assessments stands — even after a Staten Island judge ordered the city to redo parts of the rollout last week. A spokesperson for Mayor Zohran Mamdani confirmed to Bloomberg Tax that the city will not extend the date.
The rollout has been rocky. About 17,000 notices went out to property owners, but a tax roll published in the process listed more than 900,000 homeowners, and city filings admit at least 1,210 notices went to actual primary residences. Justice Wayne Ozzi ruled September 30 that the city must redo its notification process; the city is appealing and has invoked a stay of that order.
Two additional legal challenges filed last week seek to block the tax entirely. The levy targets non-primary residences in New York City: one-to-three family homes valued above $5 million and co-ops or condos worth more than $1 million. Governor Kathy Hochul authorized the tax, which the city projected would raise about $500 million a year.
So far the city has granted roughly 2,900 exemptions to owners who received notices in error. With the challenge deadline now passing and appeals pending, the tax that has roiled the city's luxury housing market is headed for a prolonged courtroom fight.



