Overstated Tax Credits: "You'll Get a Check From the IRS"
You'll get a 30% rebate check from the IRS next spring, so use it to pay down the loan and your payment stays low.
What's actually true
The Section 25D credit only reduced federal income tax you actually owed. It was never a check. Households with little tax liability got little or nothing in year one, and some never used all of it.
The 30% federal solar credit that applied through 2025 was non-refundable. It could only cancel federal income tax you owed. It was never a check from the IRS. Many retirees, low-income households and families with large child credits owed too little tax to use it, yet their proposals showed the full 30% as if it were cash in hand. The CFPB flagged this in its 2024 report on solar financing, including complaints about promised tax refunds that never came.
The credit ended for systems installed after 2025, so this mostly affects people who bought in 2025 or earlier. If you are shopping now, see quotes that still subtract 30%.
Why salespeople did it
“30% back” is a simple, powerful line. Asking about your taxes slows the sale and may reveal that the deal doesn’t work for you. Solar loans were also often structured so the monthly payment looked low only if you used the credit to pay down the loan early.
A worked example
A retired couple bought a $36,000 system in 2025. The rep said they’d get $10,800 back.
- Their federal income tax liability is about $1,200 a year (on Social Security and a small pension).
- The credit can only reduce that $1,200. In year one they use $1,200 and carry $9,600 forward.
- At that pace it takes about 9 years to use the full credit, if their tax bill stays the same.
- Their loan expected a $10,800 paydown around month 18. They have $1,200 of tax savings, not $10,800 in cash.
A tax refund is a different thing. If too much tax was withheld from your paycheck or pension, you get the extra back. The credit could make that refund bigger, but only up to the tax you owed.
How it shows up in a quote or contract
- “Federal rebate” or “IRS incentive” listed as if it were a discount
- A “net system cost” that subtracts 30% with no mention of tax liability
- A loan disclosure with two payment amounts: a lower one, and a higher one that starts if you don’t prepay
- A disclaimer like “consult a tax professional” in small print, after the rep said you qualify
Questions to ask (or to have asked)
- “Is this a credit against tax I owe, or a payment to me?”
- “How much federal income tax did I owe last year, and how much of this credit could I use?”
- “What happens to my loan payment if I can’t pay down 30% by month 18?”
- “Can unused credit be carried forward, and for how long?” (A tax preparer can answer this for your situation.)
What to do now
- Find the “total tax” line on your last two Form 1040s. That is your real limit each year.
- Look at Form 5695 from the year you installed. It shows any carryforward.
- Call your loan servicer and ask whether and when your payment re-amortizes. See reamortization balloons.
- Model your payment with the solar loan calculator.
Our federal tax credit guide explains carryforwards and what changed in 2026. If you were sold a loan you can’t afford, solar for retirees and cancel a solar contract cover your options.
Bottom line: A tax credit is worth only as much tax as you owe. A proposal that ignored your tax situation was not a proper proposal.
Where to report it
- CFPB: consumerfinance.gov/complaint for loan issues
- Your state attorney general’s consumer protection office
- FTC: reportfraud.ftc.gov
Related red flags
Quotes That Subtract the 30% Federal Tax Credit in 2026
The Section 25D homeowner credit does not apply to systems whose installation was completed after December 31, 2025. If you buy with cash or a loan in 2026, your federal credit is $0.
The Month-18 Payment Jump (Reamortization)
The low payment is often calculated as if you will pay down about 30% of the loan early. If you don't, the loan re-amortizes and the payment can jump by 40% or more. Homeowners who buy in 2026 get no federal credit to make that paydown.
Targeting Seniors and Non-English Speakers
Retirees and households pitched in another language are frequent targets of misleading solar sales. Deals can rely on tax credits the buyer can't use, run longer than the buyer plans to stay, or come with a contract in a language the buyer can't read.
Inflated 25-Year "Lifetime Savings" Numbers
Lifetime savings headlines usually add up 25 years of future dollars as if they were worth the same as today's, assume you stay the whole time, and sometimes count tax credits or inflated rate increases as savings. The real value is usually much smaller and depends on what else you could do with the money.