Who owes NYC’s second-home tax? Outdated records and co-op questions cloud rollout

By Adam Daly Posted on July 29, 2026

Mayor Zohran Mamdani’s administration acknowledged on Wednesday that some of the records used to identify possible payers of the city’s new pied-à-terre tax may be outdated, while finance officials said they are still working through how the surcharge will be administered in co-op buildings.

Department of Finance Commissioner Richard Lee said the agency relied on its existing information to identify properties that may be subject to the surcharge, but acknowledged that some applications, filings and exemptions may not be current.

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