NYC Housing Tax Incentives: 485-x, 421-a and J-51 Explained
How 485-x replaced 421-a for new NYC rentals, the June 15, 2031 completion deadline for vested 421-a projects, and the J-51 Reform abatement for renovations.
By Seayora Editorial Team · Published · Facts checked · 3 min read
Short answer: New York City’s main property tax incentives for housing are 485-x, which replaced the expired 421-a program for new construction started after June 15, 2022; 421-a itself, whose vested projects now have until June 15, 2031 to finish; and J-51, which abates taxes for rehabilitation of qualifying multiple dwellings. Each trades a tax break for affordability, wage or regulation requirements that last for years, and each is administered by the Department of Housing Preservation and Development.
Key takeaways
- 485-x covers projects that start after June 15, 2022 and by June 15, 2034, and finish by June 15, 2038, with benefits of 10 to 40 years.
- Large and modest 485-x rentals must make 20% to 25% of units affordable at an average of 60% or 80% of area median income.
- Vested 421-a(16) projects that filed a letter of intent have until June 15, 2031 to finish construction.
- J-51 Reform currently covers work completed after June 29, 2022 and on or before June 29, 2026; an extension authorized by the state needs City Council action.
What is 485-x?
Affordable Neighborhoods for New Yorkers, or 485-x, is the property tax exemption for new multiple dwellings and homeownership projects with six or more units. Construction must start after June 15, 2022 and on or before June 15, 2034, and finish on or before June 15, 2038 (HPD: 485-x).
| Option | Project | Benefit | Main requirement |
|---|---|---|---|
| A | Large rental, 100+ units | 35 years | 25% of units affordable at an average of 80% of AMI |
| A | Very large rental, 150+ units in Zones A and B | 40 years | 25% of units affordable at an average of 60% of AMI |
| B | Modest rental, 6 to 99 units | 35 years | 20% of units affordable at an average of 80% of AMI |
| C | Small rental, 6 to 10 units | 10 years | At least half the units rent stabilized; not in Manhattan or on lots allowing more than 12,500 sq ft of residential floor area |
| D | Homeownership, 6+ units | 20 years | Assessed value of no more than $89 per square foot, owners live there at least five years, not in Manhattan |
Affordable units may use no more than three income bands, with the highest capped at 100% of AMI. Rentals of 100 or more units must pay construction workers at least $40 an hour, rising 2.5% a year, with higher minimums for 150+ unit projects in Zones A and B; sites under project labor agreements are exempt. Building service employees must be paid prevailing wages unless the building has fewer than 30 units or meets certain affordability tests, and the NYC Comptroller enforces the wage rules.
What happened to 421-a?
421-a expired for projects that had not started by June 15, 2022. For projects that had started, the state’s 2024 budget extended the completion deadline for the Affordable New York Housing Program, 421-a(16), from June 15, 2026 to June 15, 2031, for developers who filed a letter of intent with HPD and chose affordability options A, B, D, E or F (HPD: 421-a). Buildings already receiving 421-a benefits remain subject to the program’s requirements for their benefit period.
What is J-51 Reform?
J-51 abates taxes for rehabilitating Class A multiple dwellings. The current J-51 Reform program covers work with a completion date after June 29, 2022 and before June 30, 2026, finished no more than 30 months after it started, and not attributable to added cubic content. Eligible rental buildings include those where at least half the units are rentals registered with DHCR with rents at or below 30% of 80% of AMI, Mitchell-Lama buildings and buildings with substantial government assistance; eligible co-ops and condos must average no more than $45,000 of assessed value per unit (HPD: J-51 Reform).
HPD says it is still accepting applications for work completed on or before June 29, 2026. The state has authorized extending eligibility to work completed before June 30, 2036, but that extension is not in effect until the City Council enacts it, so do not count on it for work finishing now.
What obligations come with these benefits?
- Affordability and income limits on the restricted units for the length of the restriction the program sets.
- Rent stabilization registration where the program requires it.
- Wage requirements where they apply, enforced by the Comptroller.
- Ongoing HPD compliance monitoring; a building that breaches can lose its benefits.
Frequently asked questions
What replaced 421-a in New York City?
485-x, Affordable Neighborhoods for New Yorkers, for projects that start after June 15, 2022 and on or before June 15, 2034.
What is the 421-a completion deadline now?
June 15, 2031 for vested 421-a(16) projects that filed a letter of intent with HPD and chose affordability options A, B, D, E or F.
Is J-51 still available in 2026?
HPD is accepting J-51 Reform applications for work completed on or before June 29, 2026. A state-authorized extension to 2036 needs City Council action before it applies.
Sources
- 485-x: Affordable Neighborhoods for New Yorkers, NYC Department of Housing Preservation and Development
- 421-a tax incentive, NYC Department of Housing Preservation and Development
- J-51 Reform program, NYC Department of Housing Preservation and Development
How Seayora helps
Property tax center: Record each property’s exemptions and when they phase out.
This article is general information, not tax advice. Tax rules change and your situation is your own, so confirm the treatment with a CPA or enrolled agent before you file.
How we write and check these guides: editorial standards.
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