Trump warns of federal challenge to New York City’s pied-a-terre tax after judge orders emergency pause

President Donald Trump warned on Tuesday that the federal government could take action against New York City’s new pied-a-terre tax, saying the measure should not proceed after an emergency court order paused the surcharge.

The dispute centers on a “pied-a-terre” tax created under Mayor Zohran Mamdani’s administration, which imposes an additional charge tied to certain New York City property holdings. According to The Washington Times, a judge issued an emergency pause of the new surcharge, delaying its implementation.

Trump’s threat of federal involvement came one day after the judge ordered the emergency halt, according to The Washington Times. The report said Trump warned that federal action could “upend” the tax, framing the move as a means to counter a New York policy he opposed.

The immediate legal posture remains a matter of an ongoing court challenge, with the emergency order serving as the near-term restraint on enforcement while litigation proceeds. The emergency pause, described in the report, means the tax’s implementation has been stayed at least temporarily.

While the particulars of what federal action would look like were not detailed in the available summary, Trump’s statement put the spotlight on the broader question of whether New York’s tax approach can survive, and how federal authority could be used to challenge a local revenue measure during active litigation.

The mayor’s office and supporters of the tax argued implicitly for the city’s authority to enact local tax policy, while opponents have challenged the measure in court. The judge’s emergency order indicates at least some legal concerns were raised quickly enough to prompt immediate relief.

For New York City, the practical effect of the court pause is a delay in collecting revenue associated with the surcharge, while the federal threat raises the possibility of additional proceedings or another layer of litigation. The timing of the next steps will likely turn on how the underlying case develops after the emergency order and what, if any, federal filing or enforcement decision follows Trump’s warning.