Full Breakdown
New York City’s Proposed Pied-à-Terre Tax Targets Hedge-Fund Billionaire Ken Griffin
4/26/2026, 4:15:38 AM
Tax Proposal and Its Rationale
Mayor Zohran Mamdani unveiled a proposed “pied-à-terre” tax that would impose an annual fee on luxury homes valued over $5 million for non-resident owners. In an April 15 video, he cited Ken Griffin’s $238 million penthouse at 220 Central Park South as an example. The mayor says the levy would help close a $12 billion budget gap.
Key Players
Key figures are Mayor Zohran Mamdani, Governor Kathy Hochul, hedge-fund billionaire Ken Griffin—who was the fifth-largest individual Republican donor in the 2024 election—Citadel chief operating officer Gerald Beeson, and investor Bill Ackman, who publicly defended Griffin. Citadel employs roughly 2,500 staff in New York City.
Financial Stakes
The $238 million penthouse is the nation’s most expensive home. Citadel’s $6 billion 350 Park Avenue project would generate 6,000 construction jobs and over 15,000 permanent jobs. Beeson cited $2.3 billion in recent city and state taxes paid by Citadel and $650 million in Griffin’s charitable gifts that support New York City institutions.
Official Statements
Mamdani framed the levy as a “pied-à-terre” tax targeting non-resident owners to relieve fiscal pressure, noting the penthouse in the video. Governor Hochul endorsed the proposal as a plug for the $12 billion deficit. Beeson’s memo warned that Citadel’s 350 Park Avenue project would proceed only if the policy environment remains favorable.
Criticism and Defense
Beeson called Mamdani’s use of Griffin’s name “shameful,” accusing the mayor of “ignorance and disdain” toward the city. Bill Ackman urged praise for Griffin’s $238 million investment rather than attack. Griffin has previously questioned whether policy serves the public interest, but has not responded directly to the tax proposal.
Conflicting Reports and Gaps
Mamdani’s video claimed the tax had been “secured,” while later reporting indicates the measure remains a proposal pending Governor Hochul’s approval, with the specific exemption criteria and enforcement mechanisms not disclosed.
Verbatim Quotes
- “We’ve secured a pied-à-terre tax,” — Zohran Mamdani, Mayor of New York City
- “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,” — Gerald Beeson, Citadel chief operating officer
- “We should be applauding Ken for spending $238 million in NYC, not attacking him for doing so,” — Bill Ackman, Investor (X)
- “That calls into question, is the public interest being served?” — Ken Griffin, Hedge-fund CEO (Florida conference)
What’s Next
The mayor’s office is expected to submit the tax proposal to the state legislature for review. Citadel has indicated that the continuation of the 350 Park Avenue redevelopment hinges on the final policy outcome, and further details on the tax’s structure are expected in upcoming budget deliberations.
