Pay off a solar loan early: your options
A partial prepayment, a full payoff, or neither. The arithmetic, and the paperwork that follows.
Written by HyreSolar Research Desk Primary-source research; not legal or financial advice
The short answer
To pay off a solar loan early, your options are a partial prepayment that keeps the payment from rising, a full payoff that ends the loan, or keeping to schedule.
Many solar loans are built around one early prepayment: the CFPB found they commonly re-amortize at a higher payment at month 19 unless about 30% of the principal is paid down first.
That 30% matched the federal tax credit. With Section 25D gone for expenditures after 2025, there is no refund to fund it, so decide from your own cash and the interest saved.
Check your contract first
- Re-amortization month and target prepayment
- Any prepayment fee
- How a partial payment is applied
Ask whether it lowers the payment (re-amortization) or shortens the term. They save different amounts.
- Whether the dealer fee is refundable on early payoff
Usually not: it was added to the principal at the start.
A worked example
Illustration only, computed by HyreSolar with the standard amortization formula: $30,000 at 4.99% APR over 25 years. Your loan’s numbers will differ.
| Scenario | Monthly payment | What happens |
|---|---|---|
| Months 1–18, before prepayment | about $123 | Payment sized as if 30% ($9,000) will be prepaid; the balance barely falls |
| Month 19 onward, $9,000 prepaid | about $127 | Payment stays close to where it was |
| Month 19 onward, nothing prepaid | about $181 | Full balance re-amortized over the remaining 282 months: roughly 47% more |
The structure, not the dollar figures, comes from the CFPB report. Run your own balance in the loan calculator.
Your options
Partial prepayment. Keeps the payment where it was. Worth it if the cash is not needed elsewhere and the loan rate beats what that cash would earn.
Full payoff. Ends interest and lets you clear the fixture filing, useful before a sale or refinance.
Keep to schedule. Reasonable at a low rate if the higher payment fits your budget. Or refinance if a cheaper loan is available.
Step by step
- 1Request a written payoff or prepayment quote
- 2Tell the lender how to apply a partial payment
In writing, before you send it.
- 3Pay and keep the confirmation
- 4After a full payoff, demand the termination
UCC § 9-513: within one month of payoff, or 20 days after your authenticated demand. If it does not happen, § 9-625 provides $500 in statutory damages plus actual loss.
- 5Check the county record
Confirm the UCC-3 termination appears.
When to get help
If the lender misapplies a payment or will not file the termination, send a written demand, then complain to the CFPB. Before a sale, involve your title company early.
When you are ready
Ready to explore solar for your home?
If you have done your research and want to speak with a solar professional, HyreSolar can help you explore available options.
Free, with no obligation: a person at HyreSolar reads your request and gets back to you about it. Matching with solar professionals is not live yet, so this is not a quote, and nothing is shared with anyone until you agree.
Keep learningQuestions
Is there a penalty for paying off a solar loan early?
What happens if I do not make the 30% prepayment?
Will paying off the loan remove the lien?
Sources and retrieval dates
- CFPB, Issue Spotlight: Solar Financing , published 7 August 2024: dealer fees, re-amortization at month 19, PPA escalators of 1 to 5% Retrieved 22 October 2026.
- UCC § 9-513, termination statement , one month after payoff, or 20 days after an authenticated demand Retrieved 22 October 2026.
- UCC § 9-625, remedies, including $500 statutory damages Retrieved 22 October 2026.
- CFPB, submit a complaint Retrieved 22 October 2026.
This page explains how solar contracts and consumer rules usually work and links the documents it relies on.
It is general information, not legal, tax or financial advice; your own contract and your state’s law decide your case.
For a dispute, speak to a lawyer licensed in your state or your state attorney general’s consumer office. HyreSolar does not install, finance, lease or sell solar.