Solar Lease vs Buy: Which Option Saves You More Money?

The Four Solar Financing Options

Every residential solar installation falls into one of four categories. The category determines who owns the system, who claims the tax credit, how your monthly payments work, and what happens when you sell your house. Here is a quick orientation before the detailed analysis:

• Cash Purchase: You pay the full installed cost upfront — typically $22,000–$30,000 for a standard 8–10 kW system in 2026 (no federal ITC for residential buyers as of 2026). You own the system outright, no debt, no monthly payment, full home value benefit. Highest long-term savings.
• Solar Loan: You finance the purchase through a lender (bank, credit union, or installer-affiliated lender). You own the system from day one and benefit from home value appreciation — with $0 down in most cases. Monthly payments at 7–9% APR for 10–25 years. No federal ITC for residential loan buyers in 2026.
• Solar Lease: A solar company installs, owns, and maintains the panels on your roof. You pay a fixed monthly lease payment — typically $75–$200/month — regardless of how much electricity the panels produce. The solar company claims a commercial clean energy credit through 2027 and passes some benefit to lessees via lower rates. Lease terms run 20–25 years with annual payment escalators of 1–3%.
• Power Purchase Agreement (PPA): Similar structure to a lease, but you pay per kilowatt-hour of electricity produced rather than a flat monthly fee. PPA rates are set 10–30% below your utility rate. The solar company owns the system and can claim the commercial credit. Available in approximately 28 states plus D.C.

According to SEIA and Wood Mackenzie Q4 2025 residential solar data, approximately 63% of U.S. residential installations in 2025 were financed with loans, 22% were cash purchases, and 15% were leases or PPAs. The loan share has grown significantly — it was under 40% in 2018 — as solar loan products have improved and the $0-down loan has become the standard offering from most installers.

Cash Purchase: Maximum Savings, Maximum Upfront

Paying cash for solar is the financially optimal choice for homeowners who have the capital available. Here is what the math looks like for a typical 8 kW residential system:

• Gross system cost: $22,000 (at $2.75/watt installed, SEIA/NREL Q4 2025 median)
• Federal ITC (30%): Not available for residential buyers in 2026 — expired December 31, 2025
• Net out-of-pocket cost: $22,000
• Annual electricity savings: $1,650–$2,400 (at $0.15–$0.22/kWh, varies by state)
• Simple payback period: 9–13 years (extended vs. prior years without ITC)
• 25-year total savings: $45,000–$60,000 (electricity cost savings + home value − system cost)

The annualized return on a cash solar purchase in 2026 ranges from 6% to 12% depending on your local electricity rate and utility escalation. Lawrence Berkeley National Laboratory's 2024 Tracking the Sun report notes that electricity costs have risen at an average of 2.5–3% per year over the past decade — a trend that makes solar increasingly valuable over time even without the ITC, as your avoided utility costs grow while your system cost stays fixed.

Solar Loans: Ownership Without the Cash

For homeowners who want to own solar but cannot or prefer not to pay $22,000+ upfront, solar loans provide ownership with $0 down. You own the system from day one and benefit from home value appreciation. Note: residential solar loan borrowers do not receive the federal ITC in 2026 — that credit expired for residential buyers. The loan economics still work, but you need to evaluate them without the credit buffer.

Solar Loan Types

Solar loans come in several flavors, each with different interest rates and structures:

• Unsecured solar loans (most common): No collateral required. Interest rates typically 5–9% APR for good credit (700+ FICO). Terms of 10, 15, or 25 years. Available from specialized lenders like Mosaic, GoodLeap, Sunlight Financial, and many credit unions.
• Home Equity Loan (HELOC): Uses your home equity as collateral. Lower interest rates — typically 6.5–8.5% APR in 2026 — and interest may be tax-deductible. Requires sufficient home equity and a longer application process.
• FHA Title I Loan: Government-backed, available for solar improvements, lower credit requirements. Capped at $25,000, requires an approved lender.
• PACE Financing (Property Assessed Clean Energy): Repaid through property tax bill. Available in 35+ states. Runs with the property (transfers on sale), which some buyers view favorably and others do not. Higher interest rates (7–10%) are a drawback.

A Typical Solar Loan Scenario

On a $22,000 system with a $0-down unsecured loan at 6.5% APR for 15 years:

• Monthly loan payment: approximately $204/month ($22,000 at 7.5% APR, 15-year term)
• Pre-solar monthly electricity bill: approximately $158/month (10,500 kWh × $0.18/kWh ÷ 12)
• Month-one net cost: $204 − $158 = +$46/month more than before solar
• No ITC to apply in 2026 for residential buyers — the loan math stands on electricity savings alone
• Year 16+ (after loan payoff): electricity savings are fully yours — $1,900–$2,400/year with no payment

In prior years, applying the ITC to the loan principal within 12–18 months was the key step that made solar loans immediately cash-flow positive. In 2026, that step no longer applies for residential buyers. The better question is whether your loan interest rate is low enough that the long-term electricity savings justify the near-term negative cash flow. At 7.5% APR, a 15-year loan on a $22,000 system breaks even around year 12–14 in most markets — still a worthwhile investment. Make sure you understand whether your loan has a "dealer fee bridge" structure — more on that below.

Solar Lease: Zero Down, Fixed Payments

A solar lease trades long-term savings for simplicity. A third-party company — typically SunPower, Sunrun, Tesla Energy, or a regional provider — installs solar panels on your roof, owns them, and charges you a fixed monthly fee. You do not own the equipment, cannot claim the tax credit, and assume no maintenance responsibility.

Lease structures typically work like this:

• Monthly lease payment: $80–$200/month, fixed (escalating annually)
• Term: 20–25 years
• Annual escalator: 1–3% (your payment increases each year)
• Production guarantee: Most leases guarantee a minimum annual kWh production; if the system underperforms, the company compensates you
• Maintenance: Company handles all repairs and monitoring
• End-of-term options: Renew, purchase at fair market value, or have panels removed

The immediate financial benefit of a lease is clear: if your utility bill was $160/month and your lease starts at $110/month, you save $50/month instantly with no upfront cost. The problem surfaces over time: as the lease escalator pushes your payment higher while utility rates also rise, the savings margin may shrink or disappear in later years. In high-electricity-rate states, the margin typically stays positive. In lower-rate states, it can turn negative by year 15–20.

Power Purchase Agreement (PPA)

A PPA is the consumption-based version of a lease. Instead of a fixed monthly fee, you pay for every kilowatt-hour the solar panels produce — at a rate set 10–30% below your utility's retail rate.

Example: Your utility charges $0.18/kWh. Your PPA rate is $0.13/kWh. If the solar system produces 11,000 kWh in a year, you pay the solar company $1,430 (at $0.13/kWh) instead of the $1,980 you would have paid the utility (at $0.18/kWh) — a savings of $550 that year. You still draw from the utility grid when your panels are not producing (evenings, cloudy days), paying the full retail rate for that grid consumption.

Key PPA considerations:

• Annual escalator: Most PPAs include a 1–2.9% annual rate escalator, like leases
• Production risk transfer: Unlike a lease, if the system underperforms (due to equipment failure or unusual weather), you pay less because your bill is tied to actual production
• State availability: PPAs are legally permitted in approximately 26–30 states; some states prohibit third-party ownership of power generation equipment
• Tax credit: The solar company (as a commercial entity) can claim the Section 48E commercial clean energy credit through 2027. Residential buyers cannot claim this — it is exclusive to commercial system owners

For homeowners in states where PPAs are available and who prefer consumption-based billing (you only pay for what you actually get), PPAs offer a slight edge over leases in risk-adjusted financial terms. Over 25 years, however, the total savings difference between a PPA and a lease is small — and both trail cash ownership by a meaningful margin due to home value impact.

The 2026 ITC Policy Shift: A Complete Reversal

The federal solar Investment Tax Credit — which for nearly a decade was the primary reason to buy rather than lease solar — underwent a dramatic policy change in 2025. Understanding what changed is essential to evaluating your financing options in 2026.

What Happened: The One Big Beautiful Bill

The Inflation Reduction Act's residential solar ITC (Internal Revenue Code Section 25D) provided a 30% tax credit for homeowners who purchased solar systems — and was scheduled to remain at 30% through 2032. The One Big Beautiful Bill, signed by President Trump on July 4, 2025, terminated Section 25D for new residential solar installations effective January 1, 2026. No phase-down, no grandfathering for pending projects — only systems placed in service by December 31, 2025 can claim the credit.

What Section 48E Means for Leases

The commercial clean energy credit under Section 48E remains available to commercial entities — including solar leasing companies — through December 31, 2027. This credit covers 30% of the cost of solar systems owned by commercial entities (like Sunrun, Tesla Energy, and others). Leasing companies use this credit to reduce their own tax liability and can therefore offer more competitive monthly rates and $0-down terms than would be possible without it.

The benefit to you as a lessee is indirect — the leasing company does not write you a check — but it does flow through as lower monthly rates. Companies with access to the Section 48E credit can typically offer starting monthly payments 10–20% lower than would otherwise be possible given their equipment and financing costs. According to SEIA and Wood Mackenzie projections, third-party ownership (lease + PPA) market share was expected to grow from 23% of residential installations in 2023 to approximately 35–40% by 2026, partly driven by this policy shift.

The bottom line in 2026: The ITC advantage that historically drove homeowners toward purchasing has been removed. Buying solar is still financially superior for most long-term homeowners — primarily because of home value gains and avoided 25-year lease payments — but the gap is narrower than it was in 2025. See our Solar Tax Credits 2026 guide for state incentives that partially fill the gap left by the expired federal credit.

25-Year Cost Comparison (Full Model)

The table below models all four financing options on the same system: 8 kW installation, $22,000 gross cost, producing 10,800 kWh/year in a state with a $0.18/kWh electricity rate escalating at 3% annually. This is representative of an average-to-good solar market (Midwest or Southeast) with full retail net metering.

*No ITC for residential buyers in 2026 — full $22,000 upfront. †Loan: $22,000 at 7.5% APR, 15-year term, total payments ~$36,720. ‡Lease: starts $100/month, 2% annual escalator, 25 years. §PPA: starts $0.13/kWh on 10,800 kWh/year = $117/month, 2% escalator. Electricity value uses $0.18/kWh growing at 3%/year. Home value per LBNL $4/watt × 4,000W. This is a model; actual results vary significantly by state, electricity rate, and loan terms.

Cash purchase still wins by a clear margin — approximately $24,600 more in net lifetime benefit than a solar lease on this scenario (down from ~$31,000 in 2025 when the ITC was available to buyers). The solar loan now lags cash by about $14,700 — much more than before due to higher interest costs without ITC principal reduction. Leases and PPAs now appear more competitive than they were in 2025, primarily because the ITC advantage of ownership has been eliminated.

Home Value Impact: Owned vs Leased Solar

Lawrence Berkeley National Laboratory's Tracking the Sun program — the most comprehensive dataset on residential solar values — has consistently found that owned solar installations increase appraised home values by approximately $4 per installed watt. An 8 kW (8,000W) system adds roughly $16,000 in home value, on average. A separate Zillow analysis of 2.7 million home sales found that homes with solar panels sold for 4.1% more than comparable non-solar homes.

Importantly, in most states this home value increase is exempt from property tax reassessment under state solar property tax exemptions — meaning you get the higher appraisal for resale purposes without paying higher annual property taxes on it.

Leased solar tells a very different story. Because the buyer must assume the lease or you must buy it out before sale, leased solar systems add minimal appraised value. Appraisers and buyers often treat a solar lease as an obligation — a monthly payment they will inherit — rather than an asset. Some markets price leased-solar homes at a discount relative to clean-title comparable sales.

Selling Your Home With Solar

This is one of the most under-discussed aspects of the lease vs. buy decision, and for homeowners planning to sell within 10–15 years, it can be decisive.

Selling With Owned Solar

Straightforward: the solar system is part of the real property, disclosed in the listing, valued by the appraiser, and transferred with the deed. No paperwork beyond standard disclosure. Buyers who understand solar — a growing segment — will see it as a $15,000–$20,000 value-add with low monthly utility bills. In some markets, "solar home" is now a positive search filter.

Selling With Leased Solar

More complex. You have three options:

• Lease transfer to buyer: The buyer assumes the lease terms (remaining years, escalator rate). The solar company must approve the buyer's credit. This adds paperwork and a potential closing delay of 2–6 weeks. Buyers who do not understand solar leases may be reluctant to assume a multi-thousand-dollar long-term obligation.
• Pre-payment (buyout) before closing: You pay the solar company the present value of remaining lease payments — often $5,000 to $20,000 depending on years remaining — to terminate the lease. Then the system transfers with the house as owned equipment. Costly but clean.
• Panel removal: The solar company removes the panels at the end of the lease (some contracts allow early removal). Leaves roof holes that must be repaired. Not practical as a sale strategy.

The National Association of Realtors' 2024 Profile of Home Buyers and Sellers noted that solar leases were among the top five transaction complications reported by listing agents in solar-heavy markets. This does not mean a home won't sell — it means the sale is more complicated and you may need to make concessions to the buyer to accommodate the lease assumption.

Hidden Solar Loan Costs: Dealer Fees Explained

The solar industry's biggest hidden fee is the dealer fee — a charge that inflates the financed system price well above the cash price. Here is how it works:

When a solar installer partners with a lender (GoodLeap, Mosaic, Sunlight Financial), the lender pays the installer the loan amount upfront and charges the homeowner interest. The lender also charges the installer a "dealer fee" — typically 15–30% of the loan amount — as a cost of originating the loan. Installers pass this fee through to you by inflating the "financed price" of the system relative to the "cash price."

How to protect yourself: Always ask for both the cash price and the financed price. A legitimate $0-down loan should finance the actual system cost, not an inflated one. If the financed price is more than 5–10% above the cash price, push back or get competing quotes. The DOE's SunShot Initiative has identified dealer fees as a major contributor to soft-cost inflation in residential solar.

Lease Escalators: The Long-Term Risk

A solar lease escalator is an annual percentage increase in your lease payment, built into the contract. Standard escalators range from 1% to 3%. Over a 25-year term, the compounding effect is significant:

The escalator is supposed to hedge against rising electricity rates — but if rates rise slower than the escalator, you pay more than you save. In states where electricity rates have been flat or fallen (due to natural gas price declines or utility rate freezes), lease escalators have erased the financial benefit entirely in later years.

When evaluating a lease offer, always ask for a 25-year payment schedule and calculate your total payments. Some companies offer 0% escalator options at a higher starting monthly rate — which can be better for your long-term economics if you plan to stay in the home.

When Leasing Actually Makes Sense

Given the savings gap, recommending a lease over purchase is difficult in most cases — but there are genuine scenarios where leasing is the rational choice:

1. Low Federal Tax Liability

In 2026, this consideration largely disappears because the residential ITC expired for buyers. But a related tax issue still applies to loans: if your taxable income is low, qualifying for a competitive solar loan rate (under 8% APR) becomes harder, and the loan economics weaken with each percentage point of additional interest. Leasing remains a more accessible option for households with limited income, poor credit, or any situation where loan qualification is difficult.

2. Poor Credit or No Loan Options

Solar loans typically require a FICO score of 650 or above, and the best rates require 700+. Homeowners who cannot qualify for a loan at a reasonable rate (under 9% APR) may find that a lease — which requires only basic creditworthiness — delivers better economics than a high-interest loan after factoring in the interest cost.

3. Short Planning Horizon

If you are planning to sell within 5–7 years, the cash purchase payback period (9–13 years in 2026 without the ITC) almost certainly means you sell before breaking even on the upfront investment — and potentially recover less in home value than you invested. A lease requires no upfront cost, provides immediate monthly savings, and can be transferred to the buyer (or bought out). For short-horizon homeowners, a lease or PPA can be the more pragmatic choice.

4. Zero Maintenance Preference

Owned solar systems have a 25-year performance warranty, but maintenance claims still require your involvement — contacting the manufacturer, scheduling inspections, dealing with insurance claims for hail damage. For homeowners who strongly prefer zero hassle and no equipment responsibility, the lease's all-inclusive maintenance guarantee has genuine quality-of-life value.

PPA Availability by State

Power Purchase Agreements are not legally available in all states. Several states prohibit third-party ownership of on-site power generation equipment on grounds that it constitutes the unlicensed practice of utility service. The patchwork of state laws creates significant geographic variation:

Source: SEIA State Solar Policy database, 2026. PPA law is evolving — verify current status with an installer in your state.

How to Choose the Right Solar Financing Option

Run through these four questions in order:

Use our Solar Panel Calculator to estimate your system size and cost, then run your numbers through the financing comparison to see which option wins for your specific situation. For a deep dive on calculating your payback period under each scenario, see our Solar Panel ROI guide.

Frequently Asked Questions