City officials announced this week that roughly two thousand New York City homeowners will not be required to pay the newly proposed pied‑à‑terre tax after a review showed their primary residences had been incorrectly flagged as secondary homes.

The clarification follows a wave of warning letters sent earlier in August to 4,290 property owners. Those letters indicated that the recipients might owe the tax, which targets owners of non‑primary residences in the city.

Mamdani administration officials said the tax notices were based on data that mistakenly categorized many primary residences as possible second homes. After the error was identified, the city contacted the affected homeowners and confirmed that the tax would not be assessed against them.

The pied‑à‑terre tax was introduced as a measure to generate revenue from owners who maintain a secondary dwelling in New York City. The recent misclassification prompted a review of the criteria used to identify secondary properties, leading to the exemption of the nearly two thousand homeowners now cleared of liability.

City representatives indicated that the correction applies only to the subset of owners whose primary residences were wrongly identified. The administration plans to continue pursuing the tax against owners of genuine secondary residences, while refining the data‑matching process to avoid similar errors in the future.

The episode underscores the challenges of implementing a new tax framework in a city with a complex housing market. Officials emphasized that the exemption does not alter the broader intent of the pied‑à‑terre tax, which remains in effect for qualifying secondary‑home owners.