How the commercial ITC works
The Investment Tax Credit (Section 48E) of the Internal Revenue Code is a 30% federal credit for qualified clean energy projects owned by businesses. When a homeowner signs a solar lease or PPA, the third-party solar company — not the homeowner — owns the system. That company claims the commercial ITC on its corporate taxes. Reputable installers pass a portion of that savings through to the homeowner as lower lease payments or PPA rates.
The amount passed through varies. The full 30% rarely flows directly to the homeowner — the installer keeps a portion to cover its underwriting risk, capital costs, and operating margin. A typical pass-through is 8–18% of system cost, depending on the installer, geography, and contract terms.
Why lease and PPA economics improved in 2026
For most of the 2010s and early 2020s, owning your solar system (cash or loan) was clearly better than leasing — you got the full federal credit yourself, and you owned the asset at the end. In 2026 the math has shifted. Cash and loan purchases pay full system price minus state/utility incentives. Lease and PPA purchases benefit from commercial ITC pass-through plus the same state/utility incentives. Result: monthly cash flow on a lease/PPA is often better than a loan, and breakeven on lease/PPA can be year one rather than year ten.
Trade-offs still apply: you don't own the system at end of contract, lifetime dollar savings are lower than ownership, home resale gets more complicated. But for homeowners who can't or don't want to put up the cash, lease/PPA in 2026 is a reasonable option in a way it wasn't five years ago.
What's still available: state and utility incentives
Federal changes don't affect state programs. Most state credits, rebates, and SREC markets continue to operate normally and stack on top of any federal benefit:
- State tax credits: NY (25%, capped $5K), SC (25%, capped $3,500/yr), HI (35%, capped $5K), and others
- State rebates: NJ SuSI/SREC-II, MA SMART, MD residential grant, IL Shines
- Utility rebates: Xcel Solar Rewards (CO/MN), Austin Energy (TX), Duke Energy (NC), Ameren (MO)
- Net metering and net billing: still available in most states. See net metering explained.
See state rebates by state for the full breakdown.
What this means for solar economics
For a typical $24,000 (8 kW) system in a state with no significant rebate:
| Financing | Year-1 cost to homeowner | Federal benefit | Lifetime savings | Payback |
|---|---|---|---|---|
| Cash | $24,000 | None directly | Highest | ~12 years |
| Loan ($0 down) | $0 + monthly payments | None directly | High (minus interest) | ~12–14 years |
| Lease / PPA | $0 + monthly payments | Commercial ITC pass-through | Lower than ownership | Often year-1 cash flow positive |
The right answer depends on your priorities. If you want maximum lifetime savings and own the asset, cash still wins. If you want lowest upfront cost and immediate positive cash flow, lease/PPA in 2026 is more competitive than it's been in years.
What to ask any installer in 2026
Before signing any solar proposal, ask these questions and get the answers in writing:
- "Does your proposal subtract a 30% federal tax credit (residential 25D expired Dec 31 2025; only commercial 48E for lease/PPA in 2026) from my net cost?" — If yes for a cash or loan purchase, the math is wrong
- "What state and utility incentives apply to my system?" — Real numbers, not estimates
- "If I lease or sign a PPA, how much of the commercial ITC are you passing through to me?" — Get a specific dollar amount and reasoning
- "What's the cash price vs the financed price?" — Compare these to find any dealer fee
- "Is your loan re-amortizing, and what triggers the re-amortization?" — Avoid loans that assume a tax credit paydown the homeowner won't make
When does lease or PPA actually make sense?
Lease and PPA aren't the right answer for everyone — they have real trade-offs. Generally consider a lease or PPA when:
- You don't have the cash and a loan APR over 7% would eat most of the savings
- You can't realistically use a state tax credit (low income, retired, etc.)
- You want $0-down with positive cash flow from year one
- You don't plan to sell the home in the next 5–7 years (lease assumption can complicate sales)
- The lease offers a 0% escalator (no annual payment increases)
See our loan vs lease vs PPA comparison for a fuller breakdown of how each option performs over 25 years.
Make sure your bid uses 2026 math
Upload your solar proposal — the analyzer validates federal credit assumptions for your specific financing structure, checks state incentive math, and recalculates your real 2026 payback.
Analyze My Bid →Frequently asked questions
Does the homeowner ever claim a federal tax credit on a 2026 lease or PPA?
No. The commercial ITC (Section 48E) is claimed by the third-party owner of the system. The benefit reaches the homeowner indirectly through lower monthly payments or PPA rates.
How much of the commercial ITC actually gets passed through to me?
It varies by installer and geography. A typical pass-through is 8–18% of system cost in the form of lower payments. Reputable installers will quantify this in writing if you ask.
If I buy with cash or a loan in 2026, is there any federal tax benefit at all?
Not directly through the solar credit pathway. Some homeowners may qualify for energy-efficiency credits on related work (insulation, heat pumps), and the 30C credit covers EVSE installation in qualifying low-income or non-urban census tracts. None of these are solar-specific.
What about the new FEOC (Foreign Entity of Concern) restrictions?
The FEOC rules restrict §48E commercial ITC eligibility when components come from prohibited foreign entities — primarily Chinese-owned manufacturers. They affect the third-party owner in lease/PPA structures and any commercial/farm system claiming the §48E credit. Phase-in dates apply through 2026–2027. See FEOC rules guide.
Does the residential 25D credit ever come back?
It would require new federal legislation. As of April 2026 there is no active proposal to reinstate the residential ITC. Don't sign a contract whose payback math depends on a 25D revival.
Without the residential ITC, what offsets the long-term risk on a cash purchase?
Equipment quality, installer track record, and a real third-party warranty matter more than ever. SolarInsure SI-30 Total insures the panels, inverter, racking, and battery for 30 years (with insurance backing for installer or manufacturer default through an A.M. Best A+ rated carrier) and transfers with the property if you sell. Ask your installer if they're a SolarInsure Certified Provider — details at solarinsure.com. See also battery storage guide for SI-30 Battery details.