Should I Get a Solar Loan, Lease, or Pay Cash? (Complete Guide)

Choosing between a solar loan, lease, or cash purchase depends on your tax situation, home plans, and long-term goals. Here's a complete breakdown of every option.

⚠️ IMPORTANT 2026 UPDATE

This article was originally published August 27, 2024 and references the 30% Federal Solar Tax Credit (Section 25D), which was terminated by the One Big Beautiful Bill Act for expenditures made after December 31, 2025. No homeowner who owns their own system qualifies for a federal residential solar tax credit in 2026 — cash, loan or any other structure. (Different situation if your installation was completed in 2025: any part of that credit you couldn't use against your 2025 tax still carries forward. Ask your CPA.)

The information below reflects the law as it stood at original publication. For current 2026 federal solar incentives and what replaced the 30% credit, read our updated guide:

→ The 30% Federal Solar Tax Credit Is Gone — What Replaced It in 2026

— Eric Brickus, Solarfying

If you're considering going solar but aren't sure whether to get a loan, lease, or pay cash outright for your solar energy system, this guide will help you make an informed decision.

Drawing on over six years of experience in solar and more than a decade in real estate, I've seen various situations and factors come into play — whether you're selling the home, refinancing, or planning to keep the property long-term for personal or rental use.

This article could potentially save you tens of thousands of dollars by helping you identify the best financing option. Choosing the wrong one for your situation can be costly, leading to setbacks and, in some cases, negative savings.

Most solar companies and sales reps won't give you all the details I'm about to share. My goal is simple: provide the truth so you can make the best decision for yourself.

Is It Worth Paying Cash for My Solar System?

The answer is: it depends. If you have cash in hand, paying upfront offers benefits like 0% interest, no dealer fees, and a typical ROI within 5–7 years. After that, the system is essentially free electricity for the life of it. Most panels still perform at about 86% efficiency after 25 years, and home energy efficiency improves over time with newer appliances. You may not need to add or replace panels for 60+ years.

On top of that, you'd be able to claim the 30% federal solar tax credit (note: terminated as of Dec 31, 2025 per OBBB — see banner above).

However, waiting until you have the full cash amount might not be worth it, as you're already "renting" energy from your utility company with ever-increasing rates. In many states, utility bills have doubled in the past five years.

Only about 5% of buyers with extra cash opt to pay 100% upfront for their solar systems. Most homeowners prefer having a fixed, lower solar bill that eventually ends, compared to rising, never-ending utility payments.

Loan vs. Lease: Which Is Best for You?

Deciding between a loan and lease depends on your personal financial situation. The first question I ask homeowners: are you in a fiscal position to pay taxes after applying all available deductions like mortgage interest and homestead exemptions?

This matters because of the 30% Federal Solar Tax Credit (FTC) — which historically applied to systems the homeowner owned, and which OBBB terminated for expenditures made after Dec 31, 2025. If you're reading this in 2026 or later, the FTC is gone for every homeowner-owned system, however you pay for it. Under a lease or PPA the provider owns the panels and is the taxpayer, so there is still no credit for you: nothing goes on your return, and any value the provider passes along shows up only as your monthly payment.

Best Option if Refinancing or Selling Your Home in the Next 5 Years (and You Can't Claim the FTC)

Solar Leases

If you're unable to claim the FTC, a solar lease can be your best option. Leasing companies claim the tax credit, which historically allowed lower monthly payments compared to loans.

For most homeowners, the goal is simple: save money by switching from traditional utility companies to solar. A lease is normally priced to start below your current monthly utility bill — but that payment is a price the provider sets, and whether it stays a saving depends on the escalator over the full term.

At the end of the lease term (usually 25 years) you can buy out the system, have it removed, or replace with a new one. This flexibility is attractive if you may sell your home — it lets the future homeowner decide what's best.

A solar lease simplifies home selling: potential buyers don't worry about assuming a loan or seeing their mortgage pre-approval reduced due to added debt. Lower utility costs vs neighbors without solar are a selling point.

Solar Lease Options:

  • Option 1: 2.9% Escalator — payments increase 2.9% annually, but still lower than the average 4% utility rate increase. Good for selling within 5 years (lowest upfront monthly).
  • Option 2: 0% Escalator — payment stays the same for 25 years. Greater long-term savings.

Best Option if Selling in the Next 5 Years and You Can Claim the FTC

Higher APR, Lower Dealer Fee Loan

If selling within 5 years and eligible for the FTC, a higher APR loan with no dealer fees can save substantially. Pay it off at home sale using equity, potentially saving $15,000–$30,000.

When marketing your home you can highlight the loan being cleared at closing using equity. Higher APR loans (~7.99%) have much lower dealer fees (5–12%) vs lower APR loans (3.99%) which carry 30–36% dealer fees.

Best Options if You Plan to Keep Your Home Long-Term and Can Claim the FTC

Low APR, Higher Dealer Fee Loan

For long-term ownership, a low APR loan despite higher dealer fees pays off over 25 years. Lower monthly payments effectively replace your utility bill.

PACE Loans (Florida and California Only)

PACE loans attach to your property taxes, so they don't affect personal credit. They typically have 0% dealer fees. Selling or refinancing requires paying off the PACE loan in full as it places a lien.

You can deduct the interest portion of a PACE loan on personal income taxes — like mortgage interest.

Cash Payment

If you have funds available, cash is great for this scenario. No interest, claim the FTC (where applicable), no payoff hassle when selling or refinancing.

Solar Lease with 0% Escalator

A great option if you want flexibility to replace panels at end of lease, avoid credit impact, and easier sell/refinance. Especially helpful for solar battery backup, which is costly. Leases offer lower monthly payments since they don't include dealer fees or interest, and you don't need to claim the federal tax credit.

Conclusion

Choosing the best financing option depends on your specific circumstances. Refinancing or selling within 5 years? Lease or higher APR loan are likely best. Long-term homeowner? Low APR loan, PACE, or cash purchase may offer the most savings.

Important note for 2026 readers: the 30% federal tax credit referenced throughout this article was terminated for every homeowner-owned system after Dec 31, 2025 — no purchase structure survived it. Under a lease or PPA (48E) the credit belongs to the company that owns the panels, not to you; nothing goes on your return, and what you get is a monthly price to compare against your utility. Read the full update here.

Want a current, 2026-accurate financing comparison specific to your situation?

Eric Brickus, Solarfying

🧮 Got a solar quote? Use our free Solar Quote Calculator to instantly check whether your price per watt is fair for your state — then get a free, independent review before you sign.