The Mamdani administration has released a searchable online database identifying New York City properties that could be impacted by the state’s new pied-à-terre tax, listing the names and addresses of hundreds of thousands of property owners across the five boroughs.

The database, published by the city’s Department of Finance, is intended to identify non-primary residences valued at more than $1 million that may be subject to the tax. However, critics say the list is overly broad and includes many properties that ultimately may not qualify.

Council Minority Leader David Carr (R-Staten Island), whose own home appears in the database, blasted the release as “reckless and foolish,” arguing that many listings could be removed after appeals or further review and questioning why the city publicly disclosed owners’ personal information before eligibility has been determined.

The controversy follows a recent social media post by Mayor Zohran Mamdani telling affluent New Yorkers to “check your mailbox” as notices about the new tax were mailed. Mamdani has defended the measure, saying it is designed to ensure wealthier property owners “pay their fair share” while generating revenue for public services such as parks, libraries, and schools.

The pied-à-terre tax was approved earlier this year by Gov. Kathy Hochul and the Democratic-controlled Legislature. City Hall has projected the measure could raise about $500 million annually, though New York City Comptroller Mark Levine’s office has estimated revenues will likely be lower—between $340 million and $380 million—and could decline over time as property owners adjust their holdings.

The database includes the names of several well-known New Yorkers, including Woody Allen, Anna Wintour, and Cynthia Nixon. But according to the New York Post, it also contains many properties that do not resemble luxury second homes, including modest residences in the Bronx and Staten Island, as well as commercial properties such as the Breezy Point Shopping Center. The publication reported that more than 960,000 properties and owners appear in the database, even though only about 31,000 homes are ultimately expected to owe the tax.

Business leaders and privacy advocates have also raised concerns. Steven Fulop, CEO of the Partnership for New York City, warned that publicly posting owners’ names and home addresses creates “real safety and privacy concerns.” Opponents argue the policy could further weaken New York City’s luxury real estate market, while supporters contend it is a way to raise additional revenue from underutilized high-value properties.

Mamdani continues to incite violence against his own constituents. This time, the VILLAIN is the rich New Yorker: those who dared to work hard & make it big. Make no mistake, this is a call to ACTION. In simple English what he’s saying is: here are their names & addresses, please… https://t.co/3GTB9ZneYg

— Councilwoman Inna Vernikov (@InnaVernikov) July 28, 2026

Councilwoman Inna Vernikov: “Mamdani continues to incite violence against his own constituents. This time, the VILLAIN is the rich New Yorker: those who dared to work hard & make it big. Make no mistake, this is a call to ACTION. In simple English what he’s saying is: here are their names & addresses, please go Luigi Mangioni on them! What could possibly go wrong?”