Updated October 2026
Solar lease vs. buy in 2026
The federal credit ended only for homeowner-owned systems, so many installers now promote leases and power purchase agreements (PPAs). With those, a company owns the panels on your roof and may still be able to claim a federal business credit for a limited time. Ask the provider whether the system qualifies, how that credit is reflected in your price, and check current IRS guidance — the deadlines for these business credits are set by federal law and are tightening.
| Buy (cash or loan) | Lease / PPA | |
|---|---|---|
| Upfront cost | High, or financed with a loan | Often $0 down |
| Federal credit in 2026 | $0 for the homeowner | May be claimed by the owning company |
| Long-term savings | Usually highest if the price is fair | Usually smaller; depends on the price escalator |
| Maintenance | Your responsibility (warranties help) | Usually handled by the company |
| Selling your home | You sell a system you own | Buyer must qualify for and take over the contract |
This calculator models a cash purchase. To evaluate a lease or PPA, compare its monthly payment and escalator against your current bill.
Weighing a loan, lease or PPA against cash? The free calculator only models a cash purchase. The Excel & Google Sheets kit runs the same math, then gives a YES/NO verdict, the most you should pay, a 3-quote compare, loan vs lease, and battery and roof checks.
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