A Staten Island judge on Monday temporarily blocked the controversial rollout of New York Mayor Zohran Mamdani’s pied-à-terre tax, pausing enforcement of one of his signature campaign promises: taxing the rich.

The judge’s order pauses the rollout of the surcharge on high-value second homes in the city while a lawsuit brought by a group of homeowners moves forward. The group says the city wrongly flagged their primary residences as subject to the tax.

Under the temporary restraining order, the city must take down the public tax roll and is barred from issuing any additional notices while the order is in effect. The next hearing is set for August 31.