New York City Mayor Zohran Mamdani's Department of Finance published a searchable database of more than 960,000 property owners' names and home addresses for a pied-à-terre tax that was supposed to target roughly 13,000 luxury second homes, and the fallout has hit his own allies hardest.
The database, released this week as part of the city's new tax on high-end secondary residences worth more than $5 million, swept up celebrities, billionaires, middle-class homeowners, a shopping mall, and at least one city council member who has lived in her listed home full-time for more than three decades. Among the names on the list: actress Cynthia Nixon, Vogue editor Anna Wintour, director Darren Aronofsky, Taylor Swift, author Deepak Chopra, journalist Gay Talese, billionaire Leonard Stern, and real estate developers Morris Moinian and Bruce Ratner, many of them Mamdani supporters, as Breitbart reported.
The tax itself was pitched as a revenue tool aimed at the ultra-wealthy. Mamdani sold it with a viral video filmed outside billionaire Ken Griffin's $239 million penthouse, declaring, "When I ran for mayor, I said I was going to tax the rich. Well today, we're taxing the rich." That clip racked up more than 52 million views on X, AP News reported. Griffin called the video "frightening" and cited it as a reason to expand his company Citadel's operations in Miami rather than New York.
The gap between what the mayor promised and what his administration delivered is staggering in scale. The pied-à-terre tax was initially estimated to affect roughly 10,000 to 13,000 properties. By July, the official tax roll had already surpassed 31,000, more than triple the original estimate in under three months, the Washington Examiner noted.
Then the Department of Finance published the full database. It contained over 960,000 residences and individuals, a number that dwarfs even the expanded roll. The list included properties in working-class neighborhoods, homes valued well below $1 million, and the addresses of people who plainly do not own luxury second residences.
Approximately 17,000 property owners received letters asking them to prove they actually live where they live, effectively shifting the burden of proof from the government onto residents.
Council Minority Leader David Carr, a Republican from Staten Island, did not hold back. Newsmax reported Carr's full statement:
"It's a reckless and foolish move, especially considering there are potentially thousands of properties on this list that do not qualify as second homes or whose owners will successfully dispute their inclusion."
Carr also called Mamdani "realtor of the year" for the state of Texas, a pointed reference to the wealthy New Yorkers who may now have fresh incentive to relocate.
District 6 Democrat Gale Brewer was among those caught in the dragnet. Brewer has lived at her listed address as her primary residence since 1994. She was blunt about the error:
"I've been living in [my place] 365 days a year since 1994. So, this whole list must be messed up."
If the city's own elected officials cannot avoid being misidentified as absentee luxury homeowners, the database's accuracy problems are not minor. They are structural. A list that was supposed to identify second homes owned by the ultra-rich instead catalogued nearly a million ordinary New Yorkers, and published their names and addresses for anyone to search.
This is not the first time Mamdani has faced scrutiny for taking credit where it was not earned or making promises he could not keep. The mayor previously claimed credit for $104 million in delivery tips generated by a law that passed before he took office.
Steven Fulop, president and CEO of the Partnership for New York City, framed the database release as something more dangerous than bureaucratic sloppiness. The New York Post quoted Fulop directly:
"Publishing names and addresses singles out people who have done nothing wrong, at a moment when the far-left already treats success itself as something to be punished."
The economic consequences of the mayor's approach may already be materializing. Citadel, Griffin's firm, had announced plans for a $6 billion office building on Park Avenue, a project expected to generate $4.5 billion in local economic impact, 6,200 construction jobs, and 15,200 permanent positions. After Mamdani's video stunt, Citadel COO Gerald Beeson sent an internal email pushing back and issued a veiled threat that the firm was considering pulling out of the development entirely.
Beeson's statement was direct:
"It is shameful that he used Ken's name as the example of those who supposedly aren't carrying their fair share of the burdens associated with New York City's often costly and wasteful spending."
A mayor who promised to squeeze the rich for revenue may instead be driving them, and the jobs they bring, out of the city. City Comptroller Mark Levine estimates the pied-à-terre tax will generate only $340 to $380 million annually, well below the administration's $500 million projection, and the revenue could diminish over time as property owners restructure or relocate, National Review reported.
Mamdani's own Democratic Socialist allies have not rallied to his defense on the broader tax question. DSA co-chair Gustavo Gordillo complained that Governor Hochul's budget deal, which includes the pied-à-terre tax, "only fills 10% of NYC's deficit" and accused Hochul of blocking new income taxes on the wealthy. The mayor sold the tax as a landmark victory. His own coalition calls it a fraction of what was needed.
Former Los Angeles mayoral candidate Spencer Pratt offered perhaps the sharpest critique, describing the list as a form of political targeting. His language was heated:
"This is what commies do. They mark their enemies, call them 'fascists', and that's the bat signal: they know their deranged commie street animals will Luigi them. They never have to explicitly call for violence...violence is just the inherent reflex of the commie. Message receive."
Pratt's rhetoric was blunt, but his underlying concern, that publishing a searchable database of names and addresses invites harassment or worse, is shared by critics across the political spectrum. A parody account impersonating Secretary of State Marco Rubio also took aim at the elite New Yorkers on the list, telling them to pay up and live with the consequences of supporting Mamdani.
The mayor has shown a pattern of reversing campaign pledges when confronted with reality. Whether this database survives legal and political challenges remains an open question. But the damage to the nearly one million New Yorkers whose personal information was published without their consent is already done.
The Washington Examiner's Emzari Gelashvili, a former Georgian counterintelligence officer whose own grandfather was deported under Soviet classification systems, drew a historical parallel that cuts to the heart of the matter:
"Nobody in 1951 wrote destroy this man beside my grandfather's name. They wrote a category, and the category did the rest."
Gelashvili's point is not that Mamdani is a Soviet commissar. It is that loosely written government categories have a way of expanding far beyond their stated targets, and the New York pied-à-terre tax list is a textbook case. A tax sold as hitting 10,000 luxury second homes tripled its roll in three months and published a database seventy times larger than the original estimate.
Meanwhile, Jewish leaders have demanded Mamdani stop inflaming tensions in the city. The mayor's pattern of provocative public gestures followed by administrative overreach has become a defining feature of his tenure.
Mamdani has also stood by a scandal-linked political strategist through separate controversies, raising persistent questions about the judgment guiding City Hall.
No one on the list asked to be published. No one was given a chance to dispute their inclusion before their name and address went live in a searchable public database. The administration that promised to make the ultra-wealthy pay their fair share instead handed the public a phone book of nearly a million New Yorkers, and called it progress.
When a government builds a list to punish the few and ends up exposing the many, the problem is not the list. It is the people who thought building it was a good idea.