Most homeowners pay for rooftop solar one of four ways. None of them is "the best" in the abstract — the right fit depends on your budget, how long you plan to stay in the home, and how much of the system you want to own and manage yourself.
Paying Cash
A cash purchase is the simplest arrangement: you pay for the system outright, and you own it from day one. There is no monthly payment, no lender, and no third party involved in the system's ownership.
- Who owns the system: you, from the moment it is installed.
- How it works: you pay the installer the agreed price; the equipment, the warranties, and the energy savings are yours.
- Considerations: it requires the most money up front, but there are no interest costs and no ongoing payments. Owners also handle maintenance directly (with equipment warranties as backup).
Solar Loans
A solar loan lets you own the system while spreading the cost over monthly payments — much like financing a car or a home improvement project.
- Who owns the system: you. The lender has a financial interest in the loan, not ownership of the panels.
- How it works: a lender provides the funds to pay for the system; you repay the loan in monthly installments over an agreed term. Terms, down payments, and eligibility requirements vary by lender.
- Considerations: a loan usually means a lower monthly outlay than paying cash, but the total cost over time is higher because of interest. Because you own the system, you also own its maintenance responsibility and any incentives available to owners.
Solar Leases
With a solar lease, a third-party company owns the system on your roof and you pay a fixed monthly amount to use it — similar to leasing equipment rather than buying it.
- Who owns the system: the leasing company, not you.
- How it works: you typically pay little or nothing up front, then make fixed monthly lease payments. The company handles monitoring, maintenance, and repairs.
- Considerations: the monthly payment is predictable, and you are not responsible for upkeep. The trade-off: you do not own the system, monthly savings may be smaller than with ownership, and the lease terms govern what happens if you sell your home.
Power Purchase Agreements (PPAs)
A power purchase agreement is another third-party-ownership model. Instead of paying a fixed monthly lease, you agree to buy the electricity the system produces at a set rate per kilowatt-hour.
- Who owns the system: the PPA provider, not you.
- How it works: you pay only for the power your panels generate, at the agreed rate — typically less than your utility's rate. The provider installs, owns, and maintains the system.
- Considerations: like a lease, a PPA removes the upfront cost and the maintenance burden, and ownership stays with the provider. Your bill varies with how much the system produces, and selling your home means transferring or resolving the agreement.
Side-by-Side Comparison
| Cash | Loan | Lease | PPA | |
|---|---|---|---|---|
| Who owns the system | You | You | Third party | Third party |
| Upfront cost | Full price | Little to none | Little to none | Little to none |
| How you pay | One payment | Monthly loan payments | Fixed monthly lease payment | Pay per kWh produced |
| Who handles maintenance | You (warranties apply) | You (warranties apply) | Leasing company | PPA provider |
| Tax benefits, if any | Go to you as owner | Go to you as owner | Go to the system owner | Go to the system owner |
| Home-sale implications | System conveys with home | Loan payoff or transfer | Lease transfer or buyout | Agreement transfer or buyout |
Tax treatment depends on your situation and current law — talk to a qualified tax professional. See the tax-credit landscape below.
The Post-2025 Tax-Credit Landscape
Federal tax incentives changed the financing math at the end of 2025, so it is worth understanding the current picture before you choose a payment path:
- The federal Residential Clean Energy Credit (Section 25D) expired for homeowner-owned systems placed in service after December 31, 2025. In 2026, the direct federal credit for a purchased residential system is 0% unless Congress enacts new legislation.
- Leases and PPAs — third-party-owned systems — may still qualify under Section 48E through 2027, which is part of why those options remain on the table for many homeowners.
For the full details, see our federal tax credit page.
Not tax or financial advice. This page describes financing types in general terms. Tax law and lending terms change, and individual situations vary — consult a qualified tax professional or financial advisor before making a decision.
Frequently Asked Questions
Mechanically, cash usually wins: with no interest and no third-party margin, the system's lifetime cost is simply its price. A loan adds interest costs over its term. Leases and PPAs add the provider's margin on top of the system's cost, though they remove the upfront payment. The real answer for your situation depends on terms you are actually offered — compare total lifetime cost, not just the monthly payment.
Lenders evaluate credit, income, and other factors when approving solar loans, and requirements vary by lender — we cannot promise any approval or rate. If a loan is not a fit, leases and PPAs are structured differently and may have different qualification standards. Ask any provider what their specific requirements are before you apply.
Tax benefits generally go to the system owner, which in a lease or PPA is the third-party company — and that owner may be able to claim the Section 48E credit through 2027. As the homeowner you would not claim it directly. Consult a tax professional about how this affects you.
Generally, the agreement must be transferred to the buyer or bought out — the specifics are spelled out in the contract you sign. Read the transfer, buyout, and escalation clauses carefully before committing, and be prepared to explain them to potential buyers.