Mayor Zohran Mamdani’s pied-à-terre tax is facing its first major legal test, and City Hall has decided to give property owners until Sept. 18 to apply for an exemption, a four-week extension from the original deadline.
A tax caught in confusion
The tax took effect July 1 and applies to New York City homes worth $5 million or more and to co-ops and condos worth $1 million or more that don’t serve as the owner’s primary residence.
The rollout has drawn criticism from property owners who say the Department of Finance identified them incorrectly, particularly those whose homes are held in trusts or limited liability companies, arrangements that can obscure ownership and complicate the city’s efforts to determine who owes the surcharge, according to The Wall Street Journal.
Homeowners sue over DOF’s process
That confusion led a group of homeowners to sue the city, alleging the Department of Finance did not conduct proper due diligence to identify pied-à-terre owners before the tax took effect. The lawsuit claims, as reported by The Wall Street Journal, that the city is illegally requiring property owners to prove they don’t owe the tax rather than requiring officials to verify that themselves and that state law requires the department to make an “initial determination” based on available records such as tax returns and property assessments.
A Staten Island judge issued an emergency order Monday pausing implementation of the tax while the court reviews the case, according to The Wall Street Journal.
Trump threatens federal review
President Donald Trump weighed in on the tax Tuesday, writing on Truth Social that he was reviewing whether the federal government has legal grounds to intervene. He called the tax a “dangerous political ‘experiment'” that could hurt the city.
City extends exemption deadline
City Hall announced, alongside Department of Finance Commissioner Richard Lee, that the measure centers on giving homeowners more time and clearer guidance.
“The pied-à-terre tax is an important new tool to help our city collect the revenue we need for safer streets, cleaner parks, and other critical investments across the five boroughs,” Mamdani said in a statement. “We are announcing the extension of the exemption application deadline to ensure that New Yorkers who received the ‘You may be subject to…’ letters have the time and information they need.”
Lee said the department’s team is ready to help homeowners navigate the exemption process. The city has also expanded outreach, including working with co-op and condo boards, property managers and community groups to distribute information and reaching out directly to homeowners who received notices where contact information is available.
