Solar is unusual among home improvements: the financing structure determines whether you keep a $4,000–$7,000 federal tax credit. That makes the loan vs. lease vs. HELOC decision here more consequential than it is for a bathroom remodel.
Here's the full map of 2026 solar financing options.
The 30% federal tax credit — and why ownership matters
The federal Investment Tax Credit (ITC) lets you subtract 30% of the total solar system cost from your federal income tax liability. On a $22,000 system, that's $6,600 off your tax bill — not a deduction, but a dollar-for-dollar credit. Per IRS Form 5695 and the Inflation Reduction Act, the 30% rate applies through 2032.
The catch: you must own the system. If you lease the panels or sign a Power Purchase Agreement (PPA), the company that owns the hardware claims the tax credit — not you.
Ownership structures that qualify for the ITC:
- Solar loan (you own the system; loan is collateral)
- Cash purchase
- HELOC draw (proceeds used to purchase the system)
- Personal loan (proceeds used to purchase the system)
Structures that do NOT qualify:
- Solar lease (company owns the panels)
- Power Purchase Agreement / PPA (company owns the panels)
Update — the 30% credit is gone for anyone installing after 2025. The One Big Beautiful Bill Act (OBBBA), signed 2025, repealed the Residential Clean Energy Credit (Section 25D) years ahead of its original 2032 sunset. The IRS's own guidance is explicit: "the credit is not available for any property placed in service after December 31, 2025" (irs.gov). If your system wasn't placed in service by December 31, 2025, the loan-vs-lease math in this guide changes — there's no longer a $4,000-$7,000 credit to finance around, whichever ownership structure you choose. The Solar Energy Industries Association (SEIA) now forecasts an 18% drop in residential solar installations in 2026, citing this exact policy change as the primary driver (seia.org) — a sign the financing calculus above has shifted industry-wide, not just for your household. Roughly 31% of solar customers financed their system with a loan rather than cash or a lease in 2026, per SEIA and Wood Mackenzie's residential solar data — exactly the ownership path this guide covers, and exactly the one that no longer carries a federal tax credit to finance around. SEIA projects that 69% of solar customers will choose third-party lease or PPA ownership instead, up sharply from 44% a year earlier, in large part because leased systems still qualify for the commercial solar tax credit that Section 25D no longer offers homeowners who buy.
Solar-specific loans
Many solar installers offer financing through specialized lenders (GoodLeap, Mosaic, Sunlight Financial, and similar). These products are designed around the ITC timeline:
- APR: 3.99–8.99% for prime borrowers (credit, income, and equity-qualified)
- Terms: 10–25 years
- Collateral: the solar system itself (UCC lien, not a mortgage lien in most cases)
- Structure: often includes an 18-month period where payments are lower, with the expectation that you apply your ITC refund to principal
Read the payment structure carefully. Some solar loans include a "dealer fee" or "advance payment" that effectively raises the cost if the ITC paydown doesn't happen. If you receive the $6,600 ITC refund and don't apply it to principal within the specified window, your monthly payment jumps. This is not always clearly disclosed upfront. Ask the installer to show you the payment schedule with AND without the ITC paydown assumption.
Financing a home upgrade with a personal loan?
See current APR ranges and loan amounts without a hard credit pull.
Check your options →HELOC for solar
For homeowners with sufficient equity, a HELOC is one of the cleanest solar financing paths:
- You own the system outright at purchase — no solar-company loan structure
- Interest may be deductible if the HELOC is used to improve the home (IRS Pub. 936)
- Draw only what you need; repay on your schedule
- APR: 8–10% variable (2026, per Federal Reserve H.15)
Tradeoffs: 30–45 day setup time; variable rate; lien on your home. See HELOC vs. personal loan for home improvement for the full rate comparison.
Personal loan for solar
A personal loan purchases the system outright and qualifies you for the ITC, same as a solar loan — but without the specialized payment structure:
- Fixed APR, fixed payment
- No lien on home, no solar-lender structure to navigate
- Fund in 1–3 days (faster than HELOC setup)
- APR: 12–25% — higher than a solar loan for most prime borrowers
Personal loans typically max out at $50,000–$100,000 — adequate for most residential systems ($15,000–$30,000 before ITC). The rate premium vs. a solar-specific loan is real: on $22,000 over 10 years, 7% vs. 16% APR is roughly $12,000 in additional interest. But the simplicity — fixed terms, no deferred-interest traps, no ITC-paydown timeline pressure — has value.
See best personal loans for home improvement for lender picks with rate ranges.
Solar lease and PPA — the no-ownership path
Leases and PPAs let you go solar with low or $0 upfront cost:
- Solar lease: fixed monthly payment to use the system, regardless of output
- PPA: pay per kWh generated — like a lower-rate electricity bill
You don't own the panels. The company that owns them claims the 30% ITC. Your monthly bill is typically lower than your pre-solar utility bill — but you don't capture the financial upside of system ownership.
Resale complication: when you sell the home, the lease or PPA contract must transfer to the new buyer or be bought out. Buyers unfamiliar with solar contracts sometimes see a lease as a liability rather than an asset. Owned systems sell as a clear home improvement; leased systems require contract education and buyer buy-in.
For homeowners who prioritize low upfront cost and minimal complexity, and who don't have the federal tax liability to fully use the ITC, a lease or PPA may still make sense. Run the numbers over a 10-year horizon including your ITC position.
Comparing the options
| Option | Upfront | ITC eligible? | APR range | Lien on home? |
|---|---|---|---|---|
| Solar loan (installer-arranged) | Low | Yes | 3.99–8.99% | No (UCC lien on system) |
| HELOC | Low | Yes | 8–10% (variable) | Yes |
| Cash purchase | Full cost | Yes | N/A | No |
| Personal loan | Low | Yes | 12–25% (fixed) | No |
| Solar lease | $0–Low | No | N/A (monthly payment) | No |
| PPA | $0 | No | N/A (per-kWh rate) | No |
What to do next
- Get 3 installer quotes. Include a cash price quote — this is your baseline for calculating the true cost of any financing offer.
- Run the ITC math: 30% of system cost = your expected credit. Confirm you have sufficient federal tax liability to use it this year or via carry-forward.
- If you have existing home equity and time: HELOC is typically the simplest path at lowest total cost.
- If you want the ITC but no home lien: compare a solar-specific loan (ask for the payment schedule with and without ITC paydown) against a personal loan at best personal loans for home improvement.
- For a related home energy upgrade (HVAC, insulation): see HVAC financing options 2026 — the ITC rules are similar.
Sources
- IRS Form 5695 — Residential Energy Credits — ITC rate, eligibility, and carry-forward rules (irs.gov/forms-pubs/about-form-5695).
- U.S. Department of Energy — Homeowner's Guide to the Federal Tax Credit for Solar — ownership vs. lease distinction, ITC mechanics (energy.gov/eere/solar).
- DOE Lawrence Berkeley National Laboratory — Selling Into the Sun — resale value premium data for owned solar systems (emp.lbl.gov).
- Federal Reserve H.15 — HELOC rate benchmarks (federalreserve.gov/releases/h15).
- IRS Publication 936 — HELOC interest deductibility for home improvement use (irs.gov/publications/p936).
