Overview
- The city began mailing letters to owners this week after Mayor Zohran Mamdani announced the Department of Finance had started notifying properties that may face the new surcharge.
- The surcharge applies to one- to three-family homes, condos and co-ops assessed at $5 million or more with a separate primary residence and uses progressive rates that start at 0.8% and rise to 1.3% for the most expensive units.
- The administration has launched a dedicated website, a secure document portal, trained 311 and DOF staff, and added Office of Administrative Tax Appeals personnel to process claims and disputes.
- City officials estimate roughly $500 million a year in revenue while the comptroller’s analysis projects a larger scope of about 13,500 properties and revenue as high as $1 billion, with final yield uncertain because of exemptions and likely behavioral responses.
- The rollout has drawn sharp political backlash on social media and prompted warnings from analysts about possible market effects such as increased listings, lower prices for affected units and special assessment challenges for small co-ops.