The NYC Solar Property Tax Abatement, Explained

If your property is in one of New York City’s five boroughs, the Solar Electric Generating Systems (SEGS) tax abatement may reduce the building’s property tax. It is separate from the New York income-tax credit and any approved NY-Sun incentive. Each has its own eligibility and cost-base rules.

It is not a rebate and not an income tax credit. It reduces the property tax bill on the building itself, in instalments, over four years.

What the abatement actually is

The SEGS abatement reduces property tax owed on an eligible NYC building with a qualifying solar installation. The NYC Department of Buildings determines eligibility and approves the application; the Department of Finance applies the approved benefit to the property tax bill. See NYC Department of Finance guidance. It is not filed as an income-tax credit with the state tax department.

That administrative detail matters more than it sounds. Because it is a property tax mechanism rather than an income tax one, it does not depend on your income, your tax liability on a return, or whether you itemise. It depends on the building.

Who qualifies

The abatement is available to Class 1, Class 2 and Class 4 properties in New York City. In practice that covers:

• Class 1 — one-, two- and three-family homes, which is most of Staten Island, much of Queens and the outer parts of Brooklyn and the Bronx.
• Class 2 — co-ops, condominiums and rental buildings with more than three units.
• Class 4 — commercial and industrial property.

The current service window is 1 January 2024 through 31 December 2034. DOF identifies incompatible benefits including ICAP, 421-a, 421-b, 421-g and PILOT. The statute also restricts benefits where specified property-tax, water/sewer or other municipal charges are in arrears. Tax-exempt property has no eligible tax to abate. Check the property’s actual status with DOB and DOF; see NYC Department of Finance guidance and Real Property Tax Law section 499-CCCC. Filing and job sign-off requirements are explained below.

What it is worth

Under Real Property Tax Law section 499-BBBB, the annual rate is 7.5% of eligible expenditures for four years for the current service window. The potential four-year total is 30%, capped at $250,000, but only if every year’s eligible tax and the other conditions permit the full annual amount. It is not a 30% cash payment at installation.

Each year’s benefit cannot exceed $62,500 or the eligible real-property tax payable on the relevant property that year. If the tax cap binds, the unused portion of that year’s 7.5% calculation cannot be added to a later year.

Eligible cost and a tax-capped example

Eligible expenditures include qualifying solar materials and properly allocated preparation, installation, architectural and engineering costs. Interest and financing charges are excluded. The statutory cost definition and DOB solar FAQ require grants and cash rebates to be removed from eligible cost; other tax credits, abatements, exemptions and tax rebates are not subtracted as if they were grants. Do not exclude the same grant a second time from an already net cost.

Assume $20,100 of fully eligible solar expenditures after any required grant or cash-rebate adjustment, a system within the current service window, and an otherwise eligible property with $1,000 of eligible property tax for the year. The 7.5% calculation is $1,507.50, but that year’s abatement is limited to $1,000. The remaining $507.50 cannot carry to another year. The NY State solar income-tax credit is not deducted from this NYC cost base. This is an assumed example, not a finding that a particular property qualifies.

How it stacks with the other two programmes

For new installation expenditures treated as made in 2026, the federal household section 25D credit is unavailable. A historical 2025 claim and unused carryforward are different cases. The IRS timing FAQ (questions 1 and 7) explains normal installation completion and the special construction/reconstruction timing rule. The NY State credit and NYC abatement remain separate benefits: neither is guaranteed solely because the other applies.

As checked on 7 October 2026, the regular residential NY-Sun blocks in the Con Edison, Upstate and Long Island regions are closed. The Con Edison and Upstate Affordable Solar blocks are also closed. However, the Affordable Solar intake accepts applications for PSEG Long Island customers, and the Long Island dashboard lists a conditional $0.40-per-watt Affordable Solar incentive. This does not establish remaining funding or an approved award for a particular project. Confirm income eligibility, current funding and contractor approval before including an incentive in a quote. For an NYC project, an incentive should only be included if the contractor can document applicable approval. The state credit is claimed under IT-255 rules; the NYC abatement is approved separately and starts on 1 July following DOB approval. These are different filing and payment schedules.

For the NYC abatement, the DOB solar FAQ says to subtract grants and cash rebates, including NYSERDA grants, but not other tax credits or abatements. For a NY income-tax credit, use its own eligible-cost rules rather than copying a universal net-cost formula. The same amount must not be subtracted twice. A new 2026 quote should also exclude an inapplicable household federal credit. See the real cost of installing solar panels in New York.

How it is claimed

The applicant is the building owner or the condominium/co-op board. Coordinate the abatement paperwork with the installer and the licensed professionals responsible for the DOB job. Do not assume a completed solar installation automatically creates the abatement.

1. Discuss the abatement when the DOB solar job and permit are being prepared; identify who will submit the application and supporting documents for the owner or board.
2. Prepare the final eligible-cost affidavit and required completion records. Under DOB rule 1 RCNY 105-02(e)(5), the solar abatement application must be submitted with job sign-off; an application missing at sign-off is denied.
3. Submit the request by 15 March before the tax year beginning 1 July for which the abatement is sought, and obtain DOB approval. The statute’s final application boundary is before 1 January 2036; this does not extend the placed-in-service window beyond 2034. See Real Property Tax Law section 499-CCCC.
4. DOB sends the approval to DOF. The four-year abatement begins on 1 July following DOB approval, subject to continuing eligibility and each year’s tax cap.

What it does not do

• It is not refundable. If the year’s instalment is larger than your property tax bill, the difference is lost rather than paid out or carried forward.
• This NYC abatement does not apply outside the five boroughs. Other New York properties must check the state credit, local exemptions and any separately available incentive under their own rules.
• A lease or PPA needs arrangement-specific confirmation. Do not assume a universal equipment-ownership exclusion under the NYC abatement rules. The applicant, expenditures, installation and property must qualify under DOB’s process. Separately, qualifying leases and PPAs of at least ten years can be eligible for the NY income-tax credit under different rules. See lease vs buy in New York and have the agreement checked.

Frequently asked questions

This article is general information, not tax, legal or financial advice. Incentive amounts, eligibility rules and deadlines change and depend on your utility, your tax situation and your property. Confirm current terms with NYSERDA, your utility and a qualified tax professional before making a decision.