Solar Leasing vs. Buying: Which Actually Makes Sense in 2026

The old rule of thumb — "buying always saves more than leasing" — is outdated. The One Big Beautiful Bill Act (July 2025) eliminated the federal tax credit for cash and loan purchases starting January 2026. Only leases and PPAs can access the 30% credit now, through a separate program (Section 48E) claimed by the leasing company.

This changes the math significantly. Here's the honest 2026 comparison.

The Case for Buying in 2026

When you buy (cash or loan), you own the system. You get net metering credits, the system adds to resale value, and you pay no monthly lease payment. But you get zero federal tax credit. An 8 kW system costing $22,000 stays $22,000 — there's no 30% deduction.

Your return comes entirely from avoided electricity costs. Over 20 years in a moderate-rate state, a cash-purchase system might generate $45,000-60,000 in electricity vs. $22,000 upfront — a net of $23,000-38,000. That's still a solid return, but it takes longer to reach than it did with the 30% credit.

The Case for Leasing in 2026

Leasing is now the only way to get a federal tax credit applied to your project. The leasing company claims the 30% credit via Section 48E and typically passes some of that value through as lower monthly payments. You pay $0 upfront, get immediate bill savings, and don't worry about maintenance.

The tradeoff: leases include annual escalators (typically 2.9-3.9%) that increase your payment over time. The leasing company keeps the tax benefits and most of the long-term value. And selling your home is more complicated — the buyer must qualify to take over the lease.

The Fine Print on Leases

Lease escalators mean that after year 10 you may be paying nearly as much for your lease as you were for your original electric bill. A PPA (power purchase agreement) is often better than a flat lease because your payments are tied to production — if the system underperforms, you pay less. Read the escalator clause carefully before signing anything.

The 20-Year Math (2026)

Cash purchase of an 8 kW system: $22,000 upfront, $0 tax credit. At $0.14/kWh with good sun, you save roughly $2,200/year in electricity, giving a 10-year payback and $23,000-38,000 net savings over 20 years.

Lease of the same system: $0 upfront, ~$80-120/month lease payment starting, escalating 2.9% annually. Your net monthly savings starts around $40-80 but shrinks each year. Total net savings over 20 years: roughly $8,000-15,000 — less than buying, but with zero upfront risk.

A PPA at $0.12/kWh (vs. $0.14 grid) with a 2.5% escalator: similar numbers, but with production-linked payments.

Which Makes Sense in 2026?

If you have $22,000 in cash and plan to stay in your home 10+ years, buying still wins on total lifetime savings — even without the tax credit. If you want immediate savings with no upfront cost, leasing is the only way to get any federal tax benefit applied to your project. A PPA is usually better than a fixed lease because payments track production.

Before 2025, buying was a clear winner for anyone who could afford it. In 2026, that advice needs a qualifier: buy if you can pay cash and stay long-term; lease or PPA if you want zero upfront and the only remaining federal credit.