Solar Lease and PPA in 2026: When Third-Party Ownership Still Makes Sense After §25D Repeal

Before the Section 25D repeal, the standard solar financing analysis ran three-way: cash purchase, loan, or lease/PPA. The federal Residential Clean Energy Credit was the anchor — a 30% reduction on net cost that made loan payback timelines competitive and cash purchases genuinely attractive. That anchor is gone for systems placed in service after December 31, 2025. But the three-way analysis did not collapse into a simple “just buy it” conclusion. It got more complicated, because the credit did not disappear from the solar market — it migrated.

Solar lease and PPA providers are businesses. As businesses that own solar equipment placed in service, they qualify for the Section 48E Clean Electricity Investment Tax Credit, which remains available for projects that begin construction by July 4, 2026, and are placed in service by December 31, 2027, or (for projects beginning construction before July 5, 2026) within four calendar years of construction start. The 30% credit flows to the company, not to you — but the company can price contracts to pass a portion of that benefit forward as lower monthly rates or reduced per-kilowatt-hour charges.

Whether that structure actually works in your favor depends on your state, your utility’s compensation rules, your tax situation, and the specific contract terms. This guide lays out how to evaluate it.

How the Section 48E Benefit Actually Flows

Section 48E of the Internal Revenue Code is the commercial successor to the investment tax credits that have applied to utility-scale solar for years. Unlike Section 25D, it is not limited to homeowner-owned systems, and unlike Section 25D, it was not repealed by the One Big Beautiful Bill Act (OBBBA, P.L. 119-21).

When a solar company installs a system under a lease or PPA, the company — not the homeowner — owns the equipment. The company places that equipment in service, incurs the qualified investment costs, and claims the Section 48E credit on its tax return. The credit reduces the company’s federal tax liability by up to 30% of the qualifying project cost.

The IRS issued Notice 2025-42 clarifying that for projects to satisfy the July 4, 2026 construction-start deadline under Section 48E, developers must meet the Physical Work Test — meaning actual on-site construction activity must begin. The 5% safe harbor that previously applied to Section 48 is substantially limited under the new guidance. For homeowners signing lease and PPA agreements, the practical implication is that the installer needs to have broken ground — not just signed a contract — before July 5, 2026 for the project to benefit from the full credit and the four-year completion window.

Update: a federal court vacated Notice 2025-42 on June 6, 2026, reopening the simpler 5% safe harbor as an option alongside the Physical Work Test — with real legal uncertainty attached given an expected government appeal. See our deadline explainer for what actually happened as July 4 passed and what to verify before signing a lease or PPA now.

After July 4, 2026, projects that begin construction remain eligible for Section 48E only if placed in service by December 31, 2027. Given that residential installations typically run 60 to 120 days from permit submission to interconnection, projects signed late in 2026 carry meaningful risk of missing the December 2027 deadline if permitting or utility interconnection queues slow the process.

Lease vs. PPA: The Two Structures

Both structures put the company between you and the federal incentive, but they work differently.

A solar lease charges you a fixed monthly payment regardless of how much the system produces. You bear the production risk — if the system underperforms due to shading, equipment degradation, or a bad weather year, you still pay the contracted amount. Most 2026 leases run 20 to 25 years and include an annual escalator — typically 0.99%, 1.99%, or 2.99% per year — that increases your payment each year. Over 20 years, a 2% annual escalator applied to a $150/month lease payment produces a final-year payment approaching $222/month.

A solar PPA charges you a rate per kilowatt-hour produced, metered at the system. You pay for what the system generates; the company absorbs production shortfalls. PPA rates in 2026 are commonly 20% to 40% below local retail electricity rates at contract signing, which creates immediate bill savings with no upfront cost. Like leases, most PPAs include an annual escalator of 1% to 3%.

The escalator is where the long-term comparison turns. If your local utility rate rises faster than the escalator — which has historically been the case in most U.S. markets — the lease or PPA retains its savings advantage through the contract term. If utility rates flatten or your utility moves to time-of-use rates that reduce the export value of solar production, the value proposition narrows.

The Trade-Off: What You Give Up with Third-Party Ownership

Homeowner ownership — whether via cash or loan — delivers higher lifetime savings for most buyers with adequate tax capacity and access to financing at reasonable rates. Without a federal credit for ownership in 2026, the comparison shifted, but it did not reverse in every case.

What you forgo with a lease or PPA:

Ownership of the asset at end of contract. A 25-year lease typically includes a buyout at fair market value, not at zero cost. If you want to own the system at lease end, the remaining payment may be meaningful.
Net metering credit accrual may be structured differently. Some utilities apply export credits to the third-party owner’s account rather than the homeowner’s; confirm the billing structure with your utility before signing.
Property value attribution. Research on whether solar adds home sale value generally assumes homeowner-owned systems. Third-party-owned systems complicate home sales — buyers must assume the lease/PPA or the system must be bought out before closing.
SREC and performance-based incentive income. In states with solar renewable energy certificate (SREC) markets — New Jersey, Maryland, Pennsylvania, the District of Columbia, and others — the certificates are typically owned by whoever owns the panels. Under a lease or PPA, that is the solar company.

What third-party ownership preserves:

Zero upfront cost. A cash or loan purchase still requires either capital or debt service that the lease/PPA avoids.
Maintenance and monitoring responsibility stays with the company. Reputable lease and PPA contracts include performance guarantees and equipment maintenance obligations. If the inverter fails, the company replaces it.
The federal benefit still reaches the market. The Section 48E credit effectively subsidizes the lease or PPA rate even though it never appears as a line item on your bill.

How to Evaluate Whether a 2026 Lease or PPA Makes Financial Sense

The comparison requires four numbers: your current utility rate, the lease/PPA rate at signing, the annual escalator on the lease/PPA, and a reasonable projection of your utility rate growth. No projection is certain, but the Energy Information Administration’s Annual Energy Outlook provides residential electricity price forecasts by region that are more methodologically transparent than contractor projections.

Compute the all-in cost of the lease or PPA over the full contract term including escalator, then compare it to the cost of the utility electricity you would otherwise buy under a conservative rate growth assumption. If the lease/PPA cost is lower across the contract term, the structure delivers genuine savings regardless of who owns the panels.

Then run the cash or loan comparison. With Section 25D gone, a loan-financed purchase at current solar loan rates — typically 6% to 9% for well-qualified borrowers in 2026 — produces a longer payback period than it would have in 2025. Depending on your state’s incentive stack and your utility’s net metering structure, payback may run 10 to 15 years for a loan purchase in markets where the federal credit was doing most of the work. That is still a positive return over a 25-year system life, but it is longer than the pre-repeal calculation.

The breakeven point between third-party and homeowner ownership shifted meaningfully in 2026 and will differ by state. In markets with high electricity rates, strong net metering, and active SREC programs — California, New Jersey, Massachusetts, Maryland — ownership economics remain competitive. In markets where the federal credit was the primary driver of positive returns, the lease or PPA’s ability to deliver the 48E benefit indirectly may produce a better outcome than a loan with no federal support.

Contract Terms to Read Before Signing

The escalator rate is the most consequential long-term variable, but it is not the only term that matters.

Escalator: Get the percentage in writing and model it over the full contract term. A contract that sounds affordable at $130/month in year one can reach $190/month by year 20 at a 2% escalator.

Buyout options: Reputable contracts include buyout provisions at years 5, 10, and end-of-term. Understand what fair market value means under the contract — some define it as a third-party appraisal, others as a formula. If you might sell your home before contract end, the buyout cost affects your net proceeds.

Performance guarantees: A lease charges you regardless of production; a performance guarantee sets a floor. If the system produces less than the guaranteed amount, the company typically credits your account. Know what the floor is and what remedies apply if it is missed.

Transfer on home sale: Most contracts allow transfer to a qualified buyer, but the buyer must meet the company’s credit requirements. A buyer who cannot qualify effectively requires you to buy out the system before closing. Factor that risk into your decision if you expect to sell within the contract term.

End-of-term options: Contracts typically offer three: renew the agreement, have the company remove the system at no charge, or purchase the system at fair market value. Confirm all three are present in writing.

The 2026 Calculus

Neither third-party ownership nor homeowner ownership is categorically superior in the post-25D environment. The correct answer depends on your electricity rate, your state’s incentives, your financing options, and your time horizon for the property.

What the Section 48E structure does is keep a meaningful federal benefit available to residential solar buyers who cannot access it directly — at the cost of forgoing asset ownership and its associated benefits. For buyers without capital for a cash purchase or access to competitive loan rates, or for buyers in states where state-level incentives do not compensate for the federal credit loss, a well-structured lease or PPA may be the option that actually delivers positive economics.

Read every escalator, buyout, and performance clause before signing. Run the 25-year cost comparison yourself with inputs you verified independently. And confirm the construction-start date with the installer: the Section 48E benefit that makes the lease or PPA pricing possible depends on the physical work test being satisfied before July 5, 2026.

The DSIRE database maintained at North Carolina State University remains the authoritative source for state and utility incentives that affect the ownership side of this comparison. The IRS’s guidance on Section 48E, including Notice 2025-42, is the primary source for the commercial credit mechanics.

Frequently Asked Questions

If the solar company claims the Section 48E credit, does that reduce my incentives?

Section 48E is a commercial credit with no interaction with residential tax filings. Claiming it does not reduce your eligibility for any state income tax credits, utility rebates, or SREC income — though under a lease/PPA, SREC ownership typically goes to the system owner (the company), not you. Verify SREC treatment explicitly if you are in a state with an active SREC market.

What happens if the solar company goes out of business?

Your lease or PPA is an asset of the company and will be transferred or assumed in any bankruptcy or acquisition. Utility-scale solar assets are typically absorbed rather than abandoned because they generate ongoing revenue. However, the quality of maintenance and performance guarantee enforcement may change under a new owner. Research the company’s financial stability and longevity before signing a 20 or 25-year agreement.

Can I add battery storage under a lease or PPA?

Some providers offer battery storage as part of third-party-owned packages, and Section 48E covers qualified battery storage as well. The economics of a battery lease depend heavily on your utility’s time-of-use tariff and any capacity or demand charge you could offset. Evaluate battery storage separately from solar if offered as a combined package — each should make financial sense on its own terms.

How does a lease or PPA affect my homeowner’s insurance?

Your policy covers your home and structures; the solar company’s equipment is typically covered by the company’s own insurance for the generation equipment. Review your homeowner’s policy for any liability exclusions related to contractor-owned equipment on your property, and confirm the company maintains adequate coverage in writing.