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NYC Department of Housing Preservation & Development

Housing Finance Programs
Tax Incentive Programs

Please note: The following tax incentive programs are for developers and future or current property owners. If you are looking for an affordable apartment or home, please visit our apartment listings.

NEW FEATURE: Click here for the 421-a Online Certification Application

For questions or inquiries about the 421-a Online Certification Application please contact 212-863-5760.

New 421-a Rent Calculator (Excel Spreadsheet)

NEW Rental and Homeownership Affordability Calculators (Excel spreadsheet)

New 421-a Geographic Exclusion Area (GEA) beginning on July 1, 2008 

                                                                    >  Brooklyn Part I
                                                                    >  Brooklyn Part II
                                                                    >  Bronx
                                                                    >  Manhattan
                                                                    >  Queens
                                                                    >  Staten Island


  • J-51: As-of-right tax exemption and abatement for residential rehabilitation or conversion to multiple dwellings.

  • 421-a: Partial tax exemption for new multiple dwellings.

  • 421-a affordable housing program.

  • 421-b: Partial tax exemption for new construction or substantial rehabilitation of owner-occupied one- and two-family homes.

  • 421-g: Tax exemption and abatement for conversion of commercial buildings to multiple dwellings (Downtown Manhattan).

  • 420-c: Complete or partial tax exemption for low-income housing developed with tax credits.

  • UDAAP: Tax exemption for rehabilitation or new construction of housing in UDAAP areas.
  • Article XI: Tax exemption for HDFC-owned new construction or rehabilitation.

  • 420-a: Complete tax exemption for HDFC-owned housing with on-site social services.



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