Solar Lease vs PPA vs Buy After July 4, 2026: A Homeowner's Decision Guide
Updated August 14, 2026 · 12 min read
The construction-start deadline for the 30% federal credit has passed. If you're a homeowner evaluating solar right now, your financing choice matters more than ever. The 30% federal credit is gone for cash and loan buyers — theSection 25D Residential Clean Energy Credit expired December 31, 2025, and the Section 48Econstruction-start window is closed (the statutory deadline was July 4, 2026, a Saturday, rolled to Monday, July 6, 2026 under IRC 7503 — both dates have now passed). The 30% survives only in grandfathered lease and Power Purchase Agreement (PPA) contracts whose construction began before the deadline, because the installer claimed 48E and locked the value in at signing.
This guide walks you through the decision step by step. No jargon. The facts and actions that matter: which option wins when, how the 48E passthrough reaches you, the questions to ask every installer, and the red flags that should stop you from signing.
⚠ The 30-second summary
Neither path carries a federal credit for new signings anymore. Grandfathered lease/PPA contracts (construction began before the July 2026 deadline) keep the 30% indirectly; new signings get $0 on every path. Your decision now hinges on local rates, escalators, net-metering terms, and long-term ownership math — not on tax credits.
Step 1: Understand What Changed
Two deadlines reshaped residential solar financing. First, theSection 25D Residential Clean Energy Credit expired on December 31, 2025 — there is no longer a personal federal credit for a system you buy and own for your primary residence. Second, theSection 48E construction-start deadline was July 6, 2026 (the statutory date was July 4, a Saturday, which rolled to Monday, July 6 under IRC 7503). That deadline has now passed for new projects.
But 48E itself did not disappear on July 4 — it closed to new starts. It remains a 30% commercial credit claimed by thesystem owner — and for a lease or PPA, the system owner is the installer or developer, not you. Grandfathered third-party- owned projects whose construction began before the deadline keep the 30%, with the value embedded in their contract terms at signing; new signings do not. One statutory bar sits on top of the deadline:26 USC 48E(i) denies the 48E credit for solar leased to a home (tax years beginning after July 4, 2025), so a construction start alone does not rescue a residential lease — the credit reliably survives in commercial and rental projects, and whether PPAs avoid 48E(i) is unsettled. For the full market breakdown of what changed on July 6, read ourPost-48E Market Realityguide. For exactly how the 48E mechanism flows value to a homeowner, see Section 48E Pass-Through.
Step 2: Compare Your Three Options
The core decision is between cash/loan ownership, a solar lease, and a PPA. Here's how they stack up in the post-48E market:
| Factor | Cash / Loan Purchase | Solar Lease | PPA |
|---|---|---|---|
| Who owns the system | You | Installer | Installer / Developer |
| Federal 30% credit | ❌ No (25D expired) | ⚠ Only grandfathered (pre-deadline construction start) | ⚠ Only grandfathered (pre-deadline construction start) |
| Upfront cost | $15,000–$35,000 | $0–$1,000 | $0 |
| Monthly payment | Loan (~$150–$300) | Fixed lease (~$100–$200) | Per-kWh (~$0.12–$0.18/kWh) |
| Maintenance | You | Installer | Installer |
| Escalator | None (loan is fixed) | Typically 2–3%/yr | Typically 2–3%/yr |
| End of term | You keep it | Buyout / return / renew | Buyout / return / renew |
| Home value | Increases | Minimal impact | Minimal impact |
| Best for | High-rate states, long-term owners | Bill reduction, $0 down | Lowest upfront, flexible |
Buying wins when: you live in a high-electricity-rate state (California, the Northeast), you plan to stay in the home for 10 or more years, and you have the cash or can secure a low-rate loan. Even without the federal credit, ownership builds equity and the system eventually pays for itself. In high-rate states, the avoided utility cost alone can clear payback within a panel's 25-year warranty.
Leasing wins when: you want predictable monthly costs, $0 down, and no maintenance responsibility. For grandfathered pre-deadline deals, the embedded 48E passthrough locked in a lower payment at signing — those contracts remain the cheapest monthly option for many mid-bill homeowners. New leases carry no federal credit, so judge them on the monthly number, the escalator, and the lack of home-equity upside.
A PPA wins when: you want to pay only for what the system produces, you prefer flexibility, and you live in a state with good sun hours. Watch the escalator and the per-kWh rate carefully — a low starting rate that escalates 3% a year can overtake your utility rate late in the term.
Step 3: Understand the 48E Passthrough
On grandfathered deals, the installer claimed the 30% Section 48E credit on a system they own on your roof, and embedded the value of that credit in your lease or PPA terms. You never file anything — the benefit shows up as lower payments than you'd see in a world with no credit. For a sample ~8 kW system, that meant a lease payment of ~$150/month instead of ~$185, or a PPA rate of ~$0.14/kWh instead of ~$0.17, because the installer captured 48E before the deadline. New signings after the July 4/6, 2026 cutoff carry no credit to embed — if a new quote shows these numbers, ask for the construction-start documentation.
The catch that always applied: installers had no obligation to pass through the full credit. Many kept a large share as margin, and some passed through none at all — charging the no-credit price while pocketing the 30% themselves. The only way to know what a grandfathered deal included was to ask. Our48E Passthrough Guidebreaks down the three passthrough patterns (Aggressive, Partial, None) and the installer language that reveals each.
The one question that matters
“What percentage of the 48E credit is reflected in my quoted price?” A transparent installer gives you a number. Evasion is a red flag.
Step 4: Run Your Numbers
Don't guess. The single biggest mistake homeowners make post-48E is deciding on financing without modeling both paths over the full term. These tools do the math with the post-deadline reality built in:
- Financing Comparison— model all four paths (cash, loan, lease, PPA) over 25 years on post-deadline terms, with grandfathered-project 48E handling for third-party-owned systems.
- Solar Lease vs Buy Calculator — see 25-year total costs, the break-even year, and who gets the credit.
- PPA Contract Decoder— if you already have a PPA quote, decode it for escalator, buyout, and red-flag terms.
- PPA Rate Benchmark— compare your quoted per-kWh rate against state averages to see if the passthrough is real.
Compare all four financing paths — with the 48E passthrough built in
Model cash, loan, lease, and PPA over 25 years and see exactly how the 30% Section 48E credit changes your numbers. Free, no sign-up.
Run my comparison →Step 5: Questions to Ask Every Installer
Before you sign anything, get answers to these. If an installer can't or won't answer, that alone is enough to walk away:
- 1. Are you claiming Section 48E on this system? If so, show me the construction-start documentation proving the project began before the July 2026 deadline. (If they can't answer or won't document it, walk away.)
- 2. What percentage of the 48E credit is reflected in my quoted price?
- 3. Is my payment fixed, or does it escalate? What's the escalator rate?
- 4. What happens at the end of the term — buyout price, renewal, or removal?
- 5. Is there a dealer fee embedded in the financing?
- 6. What's the system's estimated production versus my actual usage?
- 7. If they claim 48E: what evidence establishes the pre-deadline construction start — the Physical Work Test or the 5% safe harbor?
The passthrough patterns behind these questions are explained in depth in the48E Passthrough Guide.
Step 6: Red Flags That Should Stop You
In the post-48E market, the riskiest deals are the ones that quietly strip the credit value out of your financing while looking cheap on the surface. Watch for:
- ⚠ A lease/PPA quote that's MORE expensive than a cash purchase would be, or one claiming a 30% federal credit without construction-start documentation proving the project began before the July 2026 deadline.
- ⚠ An escalator above 3% per year — that compounds into a much larger bill by year 15.
- ⚠ A fair-market-value (FMV) buyout trap, where the end-of-term buyout price is set at an inflated estimate.
- ⚠ No clear answer on whether a claimed 48E credit passthrough is reflected in your price, or refusal to show the pre-deadline construction-start evidence.
- ⚠ Pressure to sign before you've had time to compare competing offers.
- ⚠ “30% tax credit” language applied to a cash or loan quote — that credit no longer exists for new owned residential systems, and subtracting it is a misrepresentation of the deal.
If you have multiple quotes, run them through theSolar Quote Comparisontool to spot deals that misuse the expired credit, and use thePPA Contract Decoder to catch escalator and buyout traps in any lease or PPA contract.
Questions & Answers
Can I still get the 30% solar tax credit if I lease?
Only if your specific project is grandfathered — that is, its construction began before the July 2026 deadline (statutory July 4, 2026, a Saturday, rolled to Monday, July 6 under IRC 7503). On those deals the installer owns the system, claimed the 30% Section 48E commercial credit, and embedded that value in your lease payment or PPA rate; you receive the benefit indirectly through lower monthly costs. A NEW lease or PPA signed after the deadline carries no federal credit on any path.
Is a solar lease or PPA better than buying in 2026?
Your goals decide the answer — and the federal credit no longer tips the scale, because no path carries it for new signings (Section 25D expired December 31, 2025, and the Section 48E construction-start deadline passed in July 2026). A lease or PPA offers $0 down and a predictable monthly cost; buying builds home equity and can still win in high-electricity-rate states (California, the Northeast) if you plan to stay 10+ years. Judge each path on local rates, escalators, and net-metering terms.
What is the 48E passthrough and how do I know I'm getting it?
The 48E passthrough is the value of the 30% commercial credit the installer claimed on grandfathered pre-deadline deals and embedded in the financing terms. You know a deal included it when the lease payment or per-kWh PPA rate is meaningfully lower than the retail equivalent with no credit. For any quote claiming to include the credit, ask directly: “What percentage of the 48E credit is reflected in my quoted price, and can you show the construction-start documentation proving the project began before the deadline?” A transparent installer will answer with numbers; an evasive one is a red flag.
What happens at the end of a solar lease or PPA term?
Typically three options: renew the agreement at a (possibly higher) rate, buy out the system at a pre-negotiated or fair-market-value price, or have it removed (sometimes at no cost, sometimes for a removal fee). The specific terms are set in your contract. Read the end-of-term clause carefully before signing: the fair-market-value buyout, in particular, can be an expensive surprise.
Can I buy out my lease early, and should I?
Most leases allow an early buyout, but the price is often set near "fair market value," which may exceed the residual value you'd receive from the system's production. Early buyout rarely makes pure economic sense unless you are selling the home and the buyer refuses to assume the lease. Run the numbers in the Financing Comparison tool before deciding.
Does leasing solar increase my property taxes?
In most states, leased systems are treated differently than owned systems. Because you do not own a leased system, the solar property-tax exemption that applies to owned systems may not apply, but leased systems typically do not add to your home's assessed value either, since they are not your asset. Rules vary by state and municipality; check your state's treatment with the Incentive Finder.
What's the difference between a solar lease and a PPA?
A lease charges a fixed monthly payment regardless of how much electricity the system produces. A PPA charges you per kilowatt-hour of electricity the system generates. Both are third-party-owned (the installer owns the equipment), both could carry the 48E passthrough on pre-deadline projects, and both typically require $0 down. The lease favors predictable costs; the PPA favors paying only for what you produce.
How do I compare multiple lease/PPA offers?
Normalize every offer to the same system size and production estimate, then compare four things: the monthly payment (lease) or per-kWh rate (PPA), the annual escalator, the end-of-term options, and whether any claimed 48E passthrough is documented (construction-start evidence) and reflected in the price. The Financing Comparison and Solar Quote Comparison tools do this side by side so you can spot the best deal and the red flags.
The July 4, 2026 deadline (statutory date; rolled to Monday, July 6 under IRC 7503) closed the last route to the 30% federal credit for new signings. It changed which financing path wins, but it did not end solar's value. Homeowners holding grandfathered pre-deadline lease/PPA contracts collect the credit's value every month in a lower bill. Everyone else should price both paths with zero federal credit, ask the documentation question, and walk away from any deal that claims a 30% credit it can't prove.