East Hampton Septic Incentive Program: Up to $20,000 Toward an I/A System
The Town of East Hampton uses its Community Preservation Fund to pay owners who replace an existing septic system or cesspool with a county-approved low-nitrogen system. The amount depends on where the property is and on your income, and it stacks with the Suffolk County and New York State grants.
Quick facts. Water Protection District: up to $20,000. Rest of the town: up to $15,000. Low to moderate income owners: up to $20,000. Who: residential and non-residential owners, including in the villages. Not eligible: new construction. Contact: Natural Resources Department, 631-324-0496, septicrebate@ehamptonny.gov.
Why the Town pays for upgrades
According to the Town, about 19,400 parcels in East Hampton are developed. More than 12,500 of them use cesspools, and about 6,700 use traditional leach field systems. Neither type was designed to remove nitrogen. About 6,330 developed parcels, or 32% of the total, sit in the Water Protection District, which the Town calls a critical environmental area. That is why the incentive is highest there.
How much you can get
| Who | Maximum rebate |
|---|---|
| Eligible owners in the Water Protection District | $20,000 |
| Eligible owners in all other areas of the Town | $15,000 |
| Owners who meet the low to moderate income and asset requirements | $20,000 |
The incentive pays for approved costs of replacing a septic system with a low-nitrogen system approved by the Suffolk County Department of Health Services.
Who is eligible
- Residential property owners in the Town of East Hampton
- Owners of property used for non-residential purposes
- Properties inside village boundaries within the Town
New construction is not eligible.
What you need to apply
- A valid Certificate of Occupancy issued by your town or village
- A property survey
- The property deed
- For the low to moderate income level: the first two pages of the owners' latest tax return (Form 1040, 1040A, 1040EZ or IT-201) showing federal adjusted gross income
Email eligibility applications to septicrebate@ehamptonny.gov, or get help in person from the Natural Resources Department at 300 Pantigo Place, Suite 107, East Hampton, NY 11937 (631-324-0496). The Town also publishes a Septic System Upgrade Process Guide that runs from funding approval through installation and reimbursement.
Direct pay to your installer
The Town says it can now pay your septic installer directly, and any remaining balance is available to you for other approved costs. It keeps its own approved vendor list, so ask the Natural Resources Department how to set up direct pay with your installer. If you also want the county SIP grant, your installer must be on the county's SIP Approved Installer List as well.
Adding up the grants
East Hampton's incentive sits alongside the county Septic Improvement Program (up to $20,000, paid to the installer) and the state Septic System Replacement Program (up to 75% of eligible costs, capped at $25,000). You apply for those two through the county. Our cost and grant guide explains what each covers and what stays on you.
Planning an upgrade in East Hampton? Compare quotes from up to 3 independent local installers.
Get up to 3 installer quotesRelated guides
- What an I/A system costs and how the grants stack
- How to apply for the county and state grants, step by step
- Cesspool rules: replacements, renovations, new homes and selling
Other town guides
Sources
We checked every grant amount, rule and cost on this page against these official pages on November 10, 2026. Grant rules and funding change, so confirm with Suffolk County or your town before you rely on them.