Dealer Fees Exposed: Solar Lenders' Hidden 'Low APR' Costs

Q: What if the dealer fee was not disclosed to me in California?

California law includes solar specific dealer fee disclosure rules for covered transactions. If the fee was not disclosed, save the proposal, contract, loan disclosures, and sales messages, then ask a California consumer protection attorney or regulator how the rule applies to your facts.

Disclaimer: This article is for informational purposes only and does not constitute legal advice. Consult an attorney or financial advisor before entering into any solar financing agreement.

Overview

Quick answer: a low-APR solar loan may still be expensive if the installer bought down the interest rate with a dealer fee and rolled that cost into the system price or amount financed. Before signing, compare the cash price, financed price, amount financed, APR, finance charge, total of payments, and any state-required dealer-fee disclosure in one written breakdown.

The salesperson tells you the solar loan is 3.99% APR — an interest rate that may look lower than other consumer credit. What they may not explain is whether the rate was bought down through a dealer fee or similar charge. If that cost is embedded in the system price or amount financed, the homeowner can pay thousands more while being marketed a "low APR." This article explains how dealer fees work, where they hide, and how to demand a clearer loan breakdown.

For the broader financing playbook, compare this with solar dealer fees explained and solar financing scams. The short version: a low APR can be the shiny wrapper around a much uglier total price.

How Dealer Fees Work

Solar lenders — including GoodLeap, Mosaic, Sunlight Financial, and Dividend Finance — offer installers a menu of interest rates. Lower rates cost more: the installer pays a dealer fee to the lender, expressed as a percentage of the loan amount, to buy down the APR. The installer then passes this cost to you by inflating the total system price or the "amount financed."

The math can be stark. If a solar system has a lower cash price but a higher financed price, the gap may represent a dealer fee, rate buydown, or other financing cost. The borrower sees a lower advertised rate but may not realize the financed principal already includes the cost of creating that rate.

The fee is not disclosed as a line item on most loan documents. It is baked into the principal. You borrow more, pay interest on the fee, and — if you sell the house — must pay off a loan balance inflated by thousands of dollars in charges you never knowingly agreed to pay.

What TILA Requires

The Truth in Lending Act requires lenders to disclose the finance charge, the amount financed, and the APR — all calculated in a specific, standardized manner. But here is the catch: TILA treats dealer fees as prepaid finance charges included in the finance charge calculation, not as a separate broken-out line item. The borrower sees a "Total of Payments" figure that may seem high relative to the system cost, but the specific dealer fee amount is not isolated.

This does not mean TILA authorizes hidden fees. It means that TILA's disclosure format — while providing important information — does not by itself expose the dealer fee structure. You must ask for the breakdown separately.

California SB 784: Mandatory Dealer Fee Disclosure

California has gone further than federal law. SB 784, effective in 2024, added written dealer-fee disclosure requirements for certain residential solar transactions. California homeowners should compare the required disclosure, the contract, and the loan documents before relying on the advertised APR.

The Minnesota AG Investigation

In 2024, the Minnesota Attorney General's office sued several solar lenders over alleged hidden dealer fees. The case highlighted a broader consumer-protection issue: a homeowner may be told they are getting a low-interest loan while the upfront financing cost is embedded somewhere else in the transaction.

This investigation — and similar scrutiny from other state regulators — signals that dealer fee opacity is a recognized consumer protection problem. It is not merely a sharp business practice; in some cases, it may constitute deception.

How to Demand an Itemized Breakdown

Before signing any solar loan, send a written request for:

The base system price (equipment plus installation, before any financing charges)
The dealer fee — as a dollar amount and percentage
The total amount financed and how it reconciles with the base system price plus dealer fee
The APR and total of payments over the full loan term
Any other fees, points, or charges included in the loan

Request this breakdown in writing. If the salesperson or lender cannot — or will not — provide it, treat that refusal as a red flag. You cannot evaluate the cost of borrowing if you do not know what you are paying to borrow.

Red Flags in Loan Documents

Watch for these warning signs:

"Amount financed" exceeds the cash system cost. Ask whether the gap is a dealer fee, buydown, add-on, or other financing cost.
No line item showing origination charges, points, or fees. Silence in the fee section does not mean no fees exist — it often means they are buried in the principal.
APR lower than the current prime rate. If the rate seems too good to be true, you are probably paying for it through a dealer fee.
Pressure to focus on monthly payment rather than total cost. The monthly payment is designed to look manageable; the total of payments reveals the true cost.

Sources and Official References

FAQ

What is the typical dealer fee on a solar loan?

Dealer fees vary by lender, product, market conditions, and the rate selected. Instead of relying on an average, ask for the cash price, financed price, dealer fee or buydown amount, finance charge, APR, and total of payments in writing.

Is the dealer fee the same as an origination fee?

Functionally similar, but structurally different. Dealer fees are paid by the installer to the lender for buying down the rate; origination fees on traditional mortgages are paid directly by the borrower. The difference matters because dealer fees are passed through to you without being called "borrower fees," making them harder to spot.

Can I negotiate the dealer fee?

Sometimes. If you are paying cash or using alternative financing, there is no dealer fee. If you must use the solar lender, asking for a higher APR (lower dealer fee) can reduce the upfront cost. The trade-off is higher monthly payments. Always compare total cost across all options.

What if the dealer fee was not disclosed to me in California?

California law includes solar-specific dealer-fee disclosure rules for covered transactions. If the fee was not disclosed, save the proposal, contract, loan disclosures, and sales messages, then ask a California consumer-protection attorney or regulator how the rule applies to your facts.

Are dealer fees illegal?

Not inherently. The practice of buying down rates through upfront fees is common in consumer lending (mortgage points, for example). The problem is the lack of transparent disclosure. When consumers are told they are getting a "great rate" without being told they are paying thousands of dollars for it, the failure to disclose may cross into deception or fraud.

Got blindsided by a solar deal that did not deliver?

You may have a claim, and some consumer-protection statutes include fee-shifting or lender-liability remedies when the facts fit. Our 2-minute eligibility check screens for statutes that may apply to your situation, including TILA, the FTC Holder Rule, and state UDAP laws, then routes qualified matters toward attorney review. Use the eligibility form to send the right facts through the right intake path.

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