New York City is giving property owners an extra month to apply for an exemption from the new pied-à-terre tax following criticism from elected officials and tax attorneys over the program’s implementation.

Mayor Zohran Mamdani and Finance Commissioner Richard Lee said Saturday that homeowners now have a Sept. 18 deadline to submit an application. They originally were given until Aug. 30 to petition for removal from the tax list.

The extension comes after the city faced backlash from elected officials and tax attorneys for releasing a broad list of properties that could be subject to the levy, arguing it caused …