New York City Mayor Zohran Mamdani has achieved a significant legal victory after a state appeals court reversed a previous ruling that had hindered the implementation of his administration's tax on high-end second homes. The decision by the Brooklyn-based appellate court allows the city to move forward with the levy, often referred to as a pied-à-terre tax.

This ruling overturns a September decision by a Staten Island judge who had determined that the city had mishandled the tax's rollout and ordered officials to restart the process. The city appealed this ruling while continuing to enforce the tax.

The court's decision is seen as a win for Mamdani's progressive agenda, which seeks to increase taxes on affluent New Yorkers to help address the city's budget deficit. Despite this legal success, the tax still faces other legal challenges, and the mayor's administration is actively defending other policies, including a proposed rent freeze.