Solar Financing in 2026: Your Real Options Without the ITC

Let’s address the elephant in the room: the Section 25D Investment Tax Credit — the 30% federal tax credit for homeowner-purchased solar — expired on January 1, 2026. It’s gone. No extensions, no last-minute saves, no retroactive credits.

That changes the math. It doesn’t kill solar economics — equipment prices have dropped enough that solar still pencils out in most markets — but it changes how you should think about financing. Some options that made sense with a 30% tax credit coming back don’t make sense without it. Others just got relatively more attractive.

Here’s your honest breakdown.

Option 1: Cash Purchase

Best overall ROI. Requires capital.

If you have $12,000-$22,000 available (depending on system size and whether you include batteries), paying cash gives you the best long-term return.

Why Cash Wins

• No interest costs. Every dollar of savings goes straight to your return.
• Fastest payback period. A 10 kW semi-DIY system in North Carolina at $1.50/W all-in costs about $15,000. At current Duke Energy rates, that system saves roughly $1,800-$2,200 per year. Payback: 7-8 years. After that, it’s free electricity for 20+ more years.
• No lender requirements. No credit checks, no appraisals, no waiting.
• Simplest transaction. Buy equipment, hire electrician, done.

The Math Without the ITC

Pre-2026, a $15,000 system with the 30% ITC effectively cost $10,500. Your payback was 5-6 years. Now it’s 7-8 years for the same system. That’s longer, but the 25-year return is still excellent — roughly $30,000-$40,000 in cumulative savings on a $15,000 investment.

The key insight: equipment costs have dropped roughly 15-20% since 2024. Panels that cost $0.40/W are now $0.28-$0.32/W. The EG4 18kPV inverter is more affordable than comparable inverters were two years ago. The ITC expiration hurts, but falling equipment prices have partially offset it.

Who Should Pay Cash

Anyone who has the capital and doesn’t need it for higher-return investments. If your alternative is a savings account earning 4%, putting that money into solar at a 12-15% effective annual return is a clear win.

Option 2: HELOC (Home Equity Line of Credit)

Best loan option for most homeowners.

A HELOC lets you borrow against your home equity at rates significantly lower than personal loans or solar-specific financing. In early 2026, HELOC rates are running 7-9% for borrowers with good credit.

Why HELOCs Work for Solar

• Interest is tax-deductible if used for home improvements (solar counts). This effectively reduces your rate by your marginal tax bracket. A 7.5% HELOC for someone in the 22% bracket has an effective rate of about 5.85%.
• Lower rates than alternatives. Solar loans through dealers are 5-7% nominal, but the dealer fees (more on that below) inflate the true cost dramatically. A HELOC at 7.5% actual is often cheaper than a solar loan at 2.99% with a 25% dealer fee baked in.
• Flexible draw and repayment. Draw what you need, pay it back as fast as you can. Make extra payments when you have cash. No prepayment penalties on most HELOCs.
• No installer restrictions. Unlike solar-specific loans, HELOCs don’t care who installs your system. Use any electrician you want. Buy equipment from anywhere.

The Numbers

HELOC Detail	Typical Range
Interest rate	7.0% - 9.0%
Effective rate (after tax deduction, 22% bracket)	5.5% - 7.0%
Typical draw for solar	$12,000 - $20,000
Closing costs	$0 - $500
Appraisal required?	Usually yes
Time to fund	3-6 weeks

The Downside

Your home is collateral. If you can’t make payments, the lender can foreclose. That’s a real risk to acknowledge, even though solar payments are typically less than what you were paying for electricity.

You also need equity to borrow against. If you bought your home recently with a small down payment, you may not have enough equity for a meaningful HELOC.

Who Should Use a HELOC

Homeowners with 20%+ equity in their home, good credit (700+), and the discipline to pay it off within 7-10 years. The tax-deductible interest makes this the most cost-effective borrowing option for most people.

Option 3: Clean Energy Credit Union Loans

Purpose-built solar lending without the markup games.

The Clean Energy Credit Union (CECU) and similar clean-energy-focused lenders offer solar loans specifically designed for homeowner-purchased systems. Unlike dealer-financed solar loans, these are straightforward: you borrow money, you pay it back with interest, and there are no hidden fees inflating your system cost.

What Makes CECU Different

• No dealer fees. The loan amount is the loan amount. If you borrow $15,000, your system costs $15,000.
• No installer requirement. CECU doesn’t require a specific installer. Semi-DIY is fine.
• Reasonable rates. Typically 6-9% fixed, depending on credit and term length.
• Solar-specific terms. They understand solar systems, solar timelines, and solar economics. You’re not explaining to a confused loan officer what a hybrid inverter is.

Comparison to Dealer-Financed Solar Loans

This is the critical comparison. When a turnkey installer offers you a “2.99% solar loan” through GoodLeap or Mosaic, that rate is subsidized by a dealer fee — typically 25-35% of the system cost — that gets baked into your loan amount.

Here’s what that looks like in practice:

	CECU Loan	Dealer-Financed “2.99%” Loan
Actual system cost	$15,000	$15,000
Dealer fee (hidden)	$0	$4,500 (30%)
Amount financed	$15,000	$19,500
Interest rate	7.5%	2.99%
Term	15 years	25 years
Monthly payment	$139	$93
Total interest paid	$10,020	$8,400
Total cost	$25,020	$27,900

The “cheap” dealer loan costs you $2,880 more over the life of the loan. That 2.99% rate is an illusion — you’re paying for it through an inflated principal balance.

Who Should Use a Clean Energy CU

Homeowners who don’t have enough equity for a HELOC, want a straightforward solar loan, and want to avoid the dealer fee trap. Particularly good for semi-DIY homeowners who are buying equipment directly and need financing that doesn’t require an installer contract.

Option 4: Personal Loans

Available but rarely the best option.

Personal loans from banks, credit unions, or online lenders work for solar. They’re unsecured (no home as collateral), which means higher rates but no foreclosure risk.

The Reality

• Rates: 8-15% for good credit. Higher than HELOCs.
• Terms: Typically 3-7 years. Shorter than solar-specific loans.
• Monthly payments: Higher due to shorter terms and higher rates.
• No tax deduction on interest (personal loan interest isn’t deductible).

When a Personal Loan Makes Sense

Honestly? Rarely. The only scenarios where we’d suggest a personal loan:

• You don’t have enough home equity for a HELOC
• You need a smaller system ($8,000-$12,000) and can pay it off in 3-5 years
• You find a credit union personal loan under 8%
• You don’t want your home as collateral under any circumstances

For most homeowners, a HELOC or CECU loan is a better choice. But a personal loan is better than a dealer-financed solar loan with hidden fees.

Option 5: TPO — Lease or PPA

Section 48E still applies. Can work for some homeowners.

Third-party ownership (TPO) means a company owns the solar system on your roof. You either lease the system for a fixed monthly payment or sign a Power Purchase Agreement (PPA) to buy the electricity it produces at a set rate per kWh.

The 2026 TPO Advantage

Here’s the one place where the tax credit situation actually favors a specific financing method. The Section 48E Investment Tax Credit (30%) is still available for business-owned clean energy projects, including TPO solar installations, through December 31, 2027.

That means a TPO provider installing solar on your roof can claim a 30% tax credit that you as a homeowner no longer can. In theory, they pass some of that savings to you through lower lease/PPA rates.

When TPO Makes Sense

• You have no upfront capital and can’t qualify for a HELOC or reasonable loan.
• Your credit isn’t strong enough for the best loan rates, making ownership economics less favorable.
• You want zero maintenance responsibility. The TPO company owns the system and is responsible for repairs and replacements.
• Your state has strong consumer protections for solar leases (varies widely).

When TPO Doesn’t Make Sense

• You plan to sell your home within 5-7 years. Solar leases complicate home sales. Some buyers don’t want to assume the lease, and some lenders won’t approve mortgages on homes with solar leases.
• You can afford to buy. Over 25 years, ownership almost always beats leasing. Even with the 48E credit advantage, the TPO company needs to make a profit, and that profit comes from the difference between what you pay and what the system costs them.
• The escalator is too high. Many PPA contracts include 2-3% annual rate escalators. If your utility rate doesn’t increase as fast as your PPA rate, you end up paying more for solar electricity than grid electricity in later years. Be very careful with escalators above 2%.

TPO Red Flags

Watch for these in any lease or PPA offer:

• Escalator above 2.5% per year. You’re betting that utility rates will rise faster than that. Historically they have, but it’s not guaranteed.
• Buyout terms that don’t reflect market value. Some leases let you buy the system after 6 years, but at an inflated “fair market value” that’s far above what the equipment is worth.
• Performance guarantees with weak enforcement. A guarantee that the system will produce X kWh is meaningless if the penalty for underperformance is a credit equal to $0.02/kWh.
• Automatic contract renewal. Some leases auto-renew for additional 10-year terms if you don’t cancel within a specific window. Read the fine print.

The Dealer Fee Trap: What Every Solar Buyer Must Understand

This section is the most important thing in this article. If you remember nothing else, remember this.

When a turnkey solar installer offers you a 0.99% or 1.49% interest rate on a 25-year solar loan, that rate is not free. Someone is paying for it — and that someone is you.

How It Works

The installer gets the loan funded by a finance company (GoodLeap, Mosaic, Sunlight Financial, etc.). The finance company charges the installer a “dealer fee” — typically 25-35% of the loan amount — to buy down the interest rate to that attractive headline number.

The installer adds that dealer fee to your system cost. So your $28,000 system becomes a $36,400 system (at a 30% dealer fee), but the paperwork just shows $36,400 as the “system cost.”

The Real Numbers

Scenario	Actual Cost	Dealer Fee	Financed Amount	Rate	Monthly	25yr Total
Honest pricing, market rate	$28,000	$0	$28,000	6.99%	$197	$59,100
Dealer fee, “low rate”	$28,000	$8,400	$36,400	1.49%	$140	$42,000
Semi-DIY, HELOC	$16,000	$0	$16,000	7.50%	$149	$26,820

Look at the 25-year totals. The “low rate” dealer fee loan costs you $42,000 for a $28,000 system. The semi-DIY approach with a higher interest rate costs you $26,820 for the same equipment. That’s a $15,000 difference.

The monthly payment on the dealer fee loan looks lower because the rate is lower. But you’re paying that lower rate on a much larger balance. It’s financial sleight of hand, and it works because most buyers focus on the monthly payment, not the total cost.

How to Spot Dealer Fees

• Ask for an itemized breakdown. If the installer won’t show you exactly what you’re paying for equipment, labor, permitting, and overhead separately, there’s probably a dealer fee hiding in there.
• Compare the system cost to equipment retail prices. If your 10 kW system is quoted at $35,000 but the equipment retails for $10,000, that’s a $25,000 spread for labor, overhead, and hidden fees.
• Ask directly: “Does this price include dealer fees or rate buydowns?” An honest installer will tell you.
• Get quotes at the installer’s “cash price” and the “financed price.” If the financed price is 20-30% higher, you’ve found the dealer fee.

Financing Comparison Summary

Method	Effective Rate	Upfront Cost	Monthly Cost	Best For
Cash	0%	$12,000-$22,000	$0	Best ROI, fastest payback
HELOC	5.5-7.0% (after tax deduction)	$0-$500 closing	$120-$180	Best loan option for most
Clean Energy CU	6-9%	$0	$130-$170	No equity, want transparency
Personal loan	8-15%	$0	$180-$350	Last resort for ownership
TPO lease/PPA	N/A (lease payment)	$0	$80-$150	No capital, no credit, or no hassle
Dealer-financed “low rate”	15-20% effective	$0	$90-$140	Never (in our opinion)

Our Recommendation

If you can buy with cash, buy with cash. The payback period is longer without the ITC, but it’s still under 8 years in most markets, and you get 17+ years of free electricity after that.

If you need to borrow, use a HELOC. The tax-deductible interest, flexible terms, and low rates make it the best loan product for solar.

If you can’t get a HELOC, use a Clean Energy Credit Union loan. Transparent, fair, and designed for exactly this purpose.

If you can’t qualify for any of the above, consider TPO — but only with a reputable provider, a reasonable escalator (under 2%), and clear buyout terms.

Whatever you do, don’t fall for a dealer-financed “0.99%” loan without understanding what that rate is actually costing you. Do the total-cost math. Every time.

Ready to figure out your costs?

• Design your system — get equipment costs for your specific home
• Browse equipment packages — pre-negotiated pricing, no dealer fees
• Read the semi-DIY guide — the full process from start to finish
• Find an installer — vetted electricians who do labor-only work

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