Owners & management · 11/04/2026
Appeals Court Lets Mamdani's Pied-à-Terre Tax Rollout Move Forward
A state appellate court on 11/04/2026 reversed a Staten Island judge's ruling that the city mishandled the rollout of the pied-à-terre surcharge on luxury second homes. The panel found the tax legal and said owners were not harmed by a public list of about 900,000 properties. Two other suits claiming the tax discriminates against non-city residents proceed next month.
Reported by Commercial ObserverRead the original ↗

What happened
A state appellate court on Wednesday, 11/04/2026, reversed a lower court ruling against the rollout of New York City's pied-à-terre tax, Commercial Observer reported. The decision lets Mayor Zohran Mamdani's administration move forward with the surcharge on luxury second homes.
The earlier ruling came from a Staten Island judge. That judge found the rollout unlawfully put the burden on homeowners to prove their residency status. The judge also faulted the city for targeting 900,000 residential properties through a public list that included owners' personal details. Attorney Randy Mastro represents the homeowners who sued.
The appellate panel said the tax is legal. It found that owners were not harmed by the list's release, because it held details that tax assessors already publish regularly. The judges wrote that public assessments "contain much of the same information as the supplemental roll at the heart of this appeal." Mastro said the court "avoided addressing the merits of this case" and that he will keep working for his clients.
The tax was signed into law by Gov. Kathy Hochul. It applies to single-family homes worth $5 million or more and to co-ops and condos worth at least $1 million. It still faces two other lawsuits that argue it is unconstitutional because it discriminates against people who do not live in New York City. Commercial Observer, citing Bloomberg, reported that those cases will proceed next month.
Key facts
- Ruling date
- 11/04/2026
- Court
- State appellate court panel, reversing a Staten Island lower court ruling
- Tax
- Pied-à-terre surcharge on luxury second homes in New York City
- Who it covers
- Single-family homes worth $5 million or more; co-ops and condos worth at least $1 million
- Properties on public list
- 900,000 residential properties
- Plaintiffs' lawyer
- Randy Mastro
- Signed into law by
- Gov. Kathy Hochul
- Other pending cases
- Two lawsuits claiming the tax discriminates against non-residents of NYC, set to proceed next month per Bloomberg
What it means
Buyers and owners
The city can keep rolling out the surcharge on qualifying second homes. Owners of single-family homes worth $5 million or more, or co-ops and condos worth at least $1 million, should expect the residency process to go ahead while other lawsuits continue.
Landlords
Small landlords who own a qualifying co-op, condo or single-family home that is not their primary residence may fall under the tax. Check whether your property appeared on the city's list of 900,000 residential properties.
Tenants and voucher holders
The material does not describe any direct effect on tenants or voucher holders. The tax targets owners of luxury second homes.
The highlights
- The surcharge hits single-family homes worth $5 million or more.
- Co-ops and condos worth at least $1 million are also covered.
- Two other suits claim the tax discriminates against non-city residents.
Why it matters Landlords
Owners of high-value second homes in NYC should expect the surcharge to move ahead while other legal challenges continue.
What to do: Check whether your NYC second home meets the surcharge value thresholds.
Not known yet
- The surcharge rate and how much owners will actually pay
- How owners prove their residency status and any deadline for doing so
- Whether the plaintiffs will appeal this decision further
- How the two pending non-resident discrimination cases could change the tax
Background
In New York City, the Department of Finance values properties for tax purposes and publishes assessment rolls each year. Those rolls list information such as property values and tax class, and owners can review them and challenge their valuations. New taxes or surcharges tied to property often depend on these rolls to identify which properties qualify.
Summary written by Bulwark from Commercial Observer’s reporting. The original story is at commercialobserver.com. This is general information, not legal advice.
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