Exemption Brochures

Home Improvement exemption (HIEX)

County Executive Laura Curran advocated on behalf of Nassau Residents for tax relief and along with the New York State Legislature, delivered a new Home Improvement exemption (HIEX).

HIEX allows for an eight-year phase in up to $750,000 worth of assessed fair market value resulting from a permitted alteration, reconstruction, improvement, and new construction. To qualify, the parcel must be classified as a class one property.

All home improvement projects must be completed before an exemption is granted. Under the law, all new construction must be completed by January 2, 2023. There is no application needed for this exemption and will be based upon permit applications filed with your Town/City/Village.


Thanks to a new resolution signed by Nassau County Executive Laura Curran, authorized by Governor Cuomo, all homeowners who received a Senior Citizens and/or Limited Disability property tax exemption in 2020 will automatically receive the exemption for the 2021-2022 tax year.  No action is required to renew the exemption, unless the homeowner changed their primary address, added another owner to the deed, transferred the property to a new owner or passed away.

Eligible homeowners can expect to receive the benefits of these exemptions in their school property tax bills to be distributed in fall 2021. 

County Executive Laura Curran is committed to making it easier for seniors and disabled residents to receive the property tax relief they deserve throughout the pandemic and beyond.

If you have any questions regarding this update or these exemptions, please contact one of our dedicated customer service representatives at (516) 571-1500 or by email at NCexemptions@nassaucountyny.gov.