New York City Mayor Zohran Mamdani introduced the pied-à-terre tax in April. Bloomberg/Bloomberg via Getty Images Mayor Zohran Mamdani extended a deadline for homeowners seeking exemption from his pied-à-terre tax. Eligible homeowners now have until September 18 to apply for an exemption. The tax applies to people who own a secondary property in NYC valued at over $5 million, but who live elsewhere. Wealthy homeowners who might be subject to New York City Mayor Zohran Mamdani's pied-à-terre tax just got more time to avoid it. Mamdani and Department of Finance Commissioner Richard Lee announced on Saturday that the deadline for homeowners to submit an exemption application has been extended to September 18. That's four weeks past the original August 21 deadline. "The extension gives homeowners additional time to establish that the property is their primary residence or demonstrate they are not subject to the surcharge," a press release said. "It also provides mo...