Mamdani’s $500M ‘tax the rich’ plan hits major roadblock as judge orders him to start over

A Staten Island judge ordered new notices after finding NYC improperly shifted the burden onto homeowners during the tax rollout
The surcharge targets certain high-value New York City properties that are not used as their owners’ primary residences (Getty Images)
The surcharge targets certain high-value New York City properties that are not used as their owners’ primary residences (Getty Images)

WASHINGTON, DC: New York City Mayor Zohran Mamdani’s signature pied-à-terre tax, a plan to raise an estimated $500 million a year from high-value second homes has hit a major legal setback after a Staten Island judge ordered the city to redo how it identified and notified potential taxpayers.

The September 29 ruling does not invalidate the surcharge itself, but cancels roughly 17,000 notices already sent and requires the Department of Finance to make individualized determinations before issuing new ones.

NEW YORK, NEW YORK - SEPTEMBER 15: New York mayoral candidate Zohran Mamdani speaks as he joins striking members of the Teamsters Local 210 outside of the Perrigo Company on September 15, 2025 in New York City. Zohran, Assemblymember Amanda Septimo and State Senator Rivera joined Teamsters Local 210 and 175 Perrigo workers who have been on strike since September 2 calling for fair pay, secure retirement funding, and protections against forced weekend work without overtime pay. (Photo by Michael M. Santiago/Getty Images)
The city’s second-home surcharge is projected to generate about $500 million annually, making its rollout a significant part of Mamdani’s revenue plans (Michael M. Santiago/Getty Images)

The decision comes months after New York enacted the surcharge, which took effect July 1, and as separate lawsuits challenge the tax itself.

The city has appealed Ozzi’s ruling, putting the immediate restart on hold.

Judge rejects city’s notice process

State Supreme Court Justice Wayne Ozzi found that the city improperly placed the burden on homeowners to establish that their properties were primary residences rather than requiring officials to make that determination first. 

He ordered the existing notices canceled and directed the city to use available tax and other records before sending replacements.

Justice Scales and wooden gavel or hammer on wooden surface
Justice Wayne Ozzi found the city’s exemption system improperly required homeowners to prove they did not owe the surcharge (Getty Images)

The court also ordered the Department of Finance to remove its supplemental property roll containing more than 900,000 properties and replace it with a narrower list.

The ruling requires future notices to explain the information used to identify a property and provide supporting records.

The dispute began after homeowners challenged the rollout, arguing that the city had not adequately narrowed the pool of properties before contacting owners.

The city had told recipients they could seek an exemption if their property was actually their primary residence.

$500M revenue plan faces new hurdles

The surcharge was enacted in May and applies to certain non-primary residences, including condos and co-ops valued above $1 million and one- to three-family homes valued above $5 million.

City officials estimate it could generate about $500 million annually. 

NEW YORK, NEW YORK - MARCH 18: Dawn breaks over The Statue of Liberty as Manhattan and the nation st
The measure applies to qualifying non-primary residences above specified property-value thresholds, with city officials expecting hundreds of millions in yearly revenue (Getty Images)

Mamdani and Gov. Kathy Hochul have presented the measure as a way to generate revenue from wealthy owners of expensive second homes.

When the policy was announced in April, the mayor’s office said the measure was intended to help close the city’s budget gap while protecting funding for public services.

The latest ruling does not decide whether the surcharge itself is constitutional.

That question is now being tested separately in court, including a lawsuit filed by casino executive Steve Wynn and former Commerce Secretary Wilbur Ross, who argue that the measure unfairly targets property owners who live outside New York.

City appeal puts rollout on hold

Mamdani’s administration moved quickly to appeal Ozzi’s decision, triggering a stay that temporarily pauses the practical effect of the order.

New York City Mayor Zohran Mamdani delivers a speech to mark the 250th anniversary of the United States of America at City Hall on Friday July 3, 2026 in New York, New York.
City officials are challenging the ruling while separate lawsuits test the constitutionality of the surcharge itself (Getty Images)

City officials have defended the surcharge and said they intend to continue implementing it.

The outcome could affect the timing of payments, the city’s budget expectations and thousands of property owners who received notices under the original rollout.

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