Solar Lease vs Loan: Which Saves More Over 5–25 Years?

Thinking about getting solar panels for your home? That’s great! But before you jump in, you’ve got a big decision to make: should you lease them or buy them? It sounds simple, but there’s a lot to consider, especially when you look at the money side of things over the long haul. We’re talking about 5, 10, even 25 years down the road. This isn’t just about what your monthly bill looks like right now; it’s about which choice actually puts more money back in your pocket over time. Let’s break down the solar lease vs loan options so you can figure out what makes the most sense for your wallet and your home.

Key takeaways

• The rule that used to settle this argument is gone. The 30% federal credit for homeowners who buy ended on 31 December 2025.
• A lease or PPA can still carry that credit, because the solar company owns the system and claims it. Whether any of it reaches your monthly payment is a question for the quote, not the brochure.
• Buying still wins over a long enough horizon, because the payments stop and the power does not. It now takes longer to get there.
• Over five years a lease often looks better. Over twenty-five, ownership usually does. The crossover point is personal, which is why a fixed table cannot answer it for you.
• The two numbers that decide it are how long you will stay in the house and what the quote actually says. Not a national average.

What changed in 2026, and why old comparisons are wrong

For most of the last decade this comparison had an easy answer. A buyer got 30% of the system cost back from the federal government. A lessee got nothing. That gap did most of the work in every lease-versus-loan article on the internet, including the earlier version of this one.

The One Big Beautiful Bill Act, signed on 4 July 2025, repealed Section 25D for anything installed after 31 December 2025. A homeowner who buys or finances panels today gets no federal residential credit at all.

The credit did not disappear from solar entirely. It moved. Under Section 48E a company that owns a system can still claim it, which means the firm behind a lease or a PPA can. Some pass part of that through in a lower monthly payment. Some keep it. You cannot tell from an advert, and you should not assume either way.

So the honest position in 2026 is that the tax argument no longer picks a winner. It has stopped favouring the buyer and started favouring whoever owns the panels.

The four questions that actually decide it

Work through these in order. By the fourth you will usually know.

1. How long will you be in this house?

This is the big one, and most people answer it too optimistically.

A loan puts a large cost in front of you now and pays it back slowly through lower bills. If you sell before that has played out, you hand the remaining benefit to the next owner. A lease has no upfront cost, so leaving early costs you less, though you will need to transfer the agreement or buy it out.

Under about five years, a lease is usually the safer answer. Over fifteen, ownership almost always is. In between, it depends on the rest of this list.

2. Can you carry the whole cost now?

Before 2026 you could treat roughly a third of the system as money coming back at tax time. That is no longer true. Whatever the quote says, that is the amount you are financing.

Check what that does to the monthly payment before you sign, not after. If a lender still shows a balloon payment you are expected to cover with a tax credit, ask them in writing which rule they are relying on. That structure was built for a credit that no longer exists for homeowners.

3. Who do you want responsible when something breaks?

Under a lease, the solar company owns the equipment and is on the hook for maintenance, inverter replacement and monitoring. That has real value, and it is the part of a lease that people underrate.

When you own, it is yours. Panels are reliable and usually carry a twenty-five year performance warranty, but inverters typically need replacing once during that period, and that is a cost nobody puts in the sales presentation.

4. What happens when you sell?

An owned system usually adds value and is simply part of the house. A leased system is a contract the buyer has to agree to take over, and some walk away rather than inherit a twenty-year commitment with an escalator in it.

Ask any lease provider two things before signing: what the transfer process is, and what the buyout costs at year five, ten and fifteen. Get both in writing.

What a lease really costs

Three clauses do most of the damage, and none of them show up in the headline monthly figure.

• The escalator. Most leases raise the payment every year, commonly by around 3%. Over twenty years that compounds into a much larger number than the one you were quoted. If your utility rate rises more slowly than the escalator, your savings shrink each year and can eventually go negative.
• Early termination. Leaving before the term ends usually means buying the system outright or paying out the remaining payments. Find out which.
• The term itself. Twenty to twenty-five years is normal. That is a long time to be tied to one company’s service standards.

We go through these in detail in escalators, buyouts and the true cost of a lease, and the difference between the two arrangements in PPA versus lease.

What a loan really costs

The advertised rate is rarely the whole story.

• The dealer fee. A low advertised APR is often paid for by a fee folded into the amount you borrow. Always ask for the cash price of the same system, then compare. The gap is the fee.
• The term. A twenty-five year solar loan produces a comfortable monthly payment and a very large total. Run the total, not the monthly.
• Where it sits. A home equity loan is usually cheaper than a dealer-arranged solar loan, but it is secured against your house.

The solar loan calculator will show you the lifetime cost of a quote, including what the fee does to it.

Run it on your own numbers

There is no national answer to this question, and any article that gives you one is guessing at your tax position, your utility rate, your quote and how long you plan to stay. Those four inputs move the answer by years.

Put your own figures in instead. The calculator compares buying outright, financing and leasing over the full term, using your quote rather than an average.

So which one

If you are staying put, can carry the cost, and want the payments to end one day, buy. Ownership is still the better long-run outcome, and the repeal of the credit lengthened the wait rather than removing the advantage.

If you may move within about five years, do not have the tax appetite or the credit score for good loan terms, or you simply do not want to own the equipment, lease. That is a legitimate answer and not a consolation prize.

What has changed is that the second group is bigger than it was in 2025, and anyone still telling you the tax credit makes buying obvious has not updated their page.

Frequently asked questions

Can I still get the 30% federal tax credit if I buy solar in 2026?

No. Section 25D was repealed for systems installed after 31 December 2025. If your system was placed in service before that date you can still claim it on that year’s return. If a salesperson includes it in a 2026 quote, ask them in writing which rule they are relying on.

Does the tax credit still apply to a lease or PPA?

The solar company can claim it, because it owns the system, under a different section of the tax code. Whether any of that reaches your monthly payment depends on how the company prices its offer. Ask.

Does buying still save more than leasing?

Over a long enough period, usually yes, because loan payments end and lease payments do not. The repeal of the credit pushed the break-even point out by several years, so the answer now depends much more on how long you stay in the house.

When is leasing the better choice?

When you may move within about five years, when your credit or tax position makes a good loan hard to get, or when you would rather someone else be responsible for maintenance and inverter replacement.

What should I check before signing a lease?

The annual escalator, the buyout cost at year five, ten and fifteen, the early termination terms, and the transfer process if you sell. Get all four in writing before you sign.

What should I check before signing a loan?

Ask for the cash price of the same system. The difference between that and the financed amount is the dealer fee. Then compare the total repaid over the full term, not the monthly payment.

Once you have a quote in hand, put it through the comparison before you make a decision.