The pitch is everywhere. "Lock in your power bill." "No money down." "The federal tax credit pays for a third of the system."
A salesperson rings the doorbell, runs a 30-minute slideshow on a tablet. Offers a 25-year solar loan that promises to be lower than your current electric bill.
By the end of the conversation many Christian homeowners are about to sign a six-figure financing agreement, secured by a lien on their house, with dealer fees they will never see itemized.
Solar can be a genuinely wise stewardship decision. The financing structure most installers push almost never is.
This guide walks through the four ways to pay for solar (cash, loan, lease, PPA), the hidden dealer markup buried in loan pricing, what changed about the federal tax credit in 2025–2026, the lien and title risks that surface when you try to sell. The Scripture that should govern the decision before you sign anything.
Apply this article
Before any solar quote, model the cash-purchase payback in the compound interest calculator and compare it to investing the same dollars. Open it now →
The four ways to pay for solar — and which one the installer hides
Every residential solar deal collapses to one of four financial structures. The installer almost always leads with the structure that pays them the most commission, not the one that is best for you.
1. Cash purchase
You pay the full system cost upfront. Typically $18,000 to $35,000 for a 7–10 kW system after the federal tax credit. You own the panels, you own the inverter, you own the production.
There is no lien on your house, no monthly payment, no dealer fee, no escalator clause.
The payback period. The number of years until accumulated electric-bill savings exceed the upfront cost. Is typically 7 to 12 years in good solar markets and 15+ in poor ones.
After payback the production is free for the remaining 15–20 years of system life.
This is the only structure where the homeowner captures 100% of the economics. It is also the structure the salesperson is least likely to push,. Because the commission is smaller than on a financed deal.
2. Solar loan
The lender pays the installer. You sign a 10-, 15-, 20- or 25-year loan. Most solar loans are secured. Meaning a UCC-1 fixture filing or a deed-of-trust junior lien is recorded against your property.
The advertised "low" interest rate (sometimes 0.99% or 1.99%) is achieved by the installer paying the lender a dealer fee. Typically 15% to 30% of the loan amount. Which is then added to the price you finance.
The same system the cash buyer pays $25,000 for is financed at $32,000.
Solar loans are the dominant structure. Because they preserve the federal tax credit (you, the homeowner, claim it), generate the largest installer commission. Let the salesperson advertise a monthly payment "lower than your power bill". Usually true only for the first year, before utility-rate inflation and loan re-amortization (which happens at month 18 if you do not pay down the loan with your tax credit refund) kick in.
3. Solar lease
A third-party owns the panels on your roof. You pay them a fixed monthly lease payment, typically with a 1.9% to 2.9% annual escalator built in. The leasing company claims the federal tax credit and any state incentives.
You receive the electric-bill offset but none of the asset value.
Leases lock the homeowner into a 20- or 25-year contract that follows the property and can complicate a future sale (the buyer must assume the lease or the seller must buy it out, often $15,000–$25,000).
4. Power purchase agreement (PPA)
Identical to a lease in legal structure but priced per kilowatt-hour produced rather than as a fixed monthly payment. The PPA rate starts below your utility rate and escalates annually. As with a lease, the third party owns the system, claims the credits. The contract burdens your title for 20–25 years.
The hidden dealer fee: the single most important number in a solar loan
This is the disclosure the salesperson will not volunteer. Ask directly: "What is the cash price of this exact system. What is the dealer fee on the financing you are quoting?"
If you do not get a clear, written, itemized answer, walk away. A typical 7 kW system in a competitive market has a cash price of $21,000.
The same installer's "1.99% APR for 25 years" loan price for the same system is often $28,000. The $7,000 gap is the dealer fee the installer pays the lender to buy down the rate, then passes to you in the financed amount.
The Federal Trade Commission and several state attorneys general have moved against solar installers for exactly this practice.
As a Christian homeowner you have a duty before God to understand what you are signing (Proverbs 14:15 — "the simple believes everything. The prudent gives thought to his steps").
The cash price versus financed price gap is the price of your ignorance.
The 2025–2026 federal tax credit changes
The Residential Clean Energy Credit (Section 25D) was 30% of system cost through 2032 under the Inflation Reduction Act. Tax legislation passed in mid-2025 accelerated the phasedown.
As of May 2026 the credit is still 30% for systems placed in service in 2026. It steps down to 26% in 2027, 22% in 2028. Expires for residential after 2028 unless extended.
Installers are using "the credit is going away" as a high-pressure close.
The credit is going down, not away. And signing a bad loan today to capture a credit you would have qualified for next year too is a textbook violation of Luke 14:28's "count the cost first."
One more credit nuance: the credit is non-refundable. It offsets federal income tax owed but does not generate a refund beyond your tax liability.
A retired couple with $4,000 in annual federal tax liability who buys a $25,000 system does not get a $7,500 check from the IRS. They get to apply $4,000 the first year and carry the rest forward.
Many salespeople imply the credit is a check in hand. Verify your own tax situation with a CPA before counting on it for loan paydown.
The lien problem when you sell
Solar loans secured by a UCC-1 fixture filing or a deed-of-trust lien will surface in title search when you sell your home. The buyer's lender may refuse to close until the lien is removed.
You must either pay off the loan in full at closing (eliminating your equity from the deal) or persuade the buyer to formally assume it (which most buyers refuse).
Leases and PPAs create the same problem in a different form — the contract must transfer to the buyer or be bought out.
The cash-purchase homeowner has none of this friction. The home sells with the panels as a value-adding fixture. Appraisers in most markets add $4,000–$6,000 per kilowatt of installed capacity to home value. This is one of the strongest financial arguments for the cash-purchase structure: it adds asset value while financing structures add encumbrance.
What Scripture says before you sign
Three texts govern this decision more directly than any IRS publication.
Proverbs 22:7 — "the borrower is the slave of the lender." A 25-year secured loan against your home for a depreciating consumer asset is the exact image Solomon warns against. The Hebrew eved means bondservant. A structural loss of self-determination.
Solar loans do not foreclose as easily as a mortgage default. The lien follows the property and the payment follows your budget for a quarter-century. Treat the decision with the gravity Scripture demands.
Luke 14:28 — "which of you, desiring to build a tower, does not first sit down and count the cost?" The cost is not the monthly payment.
The cost is the total of payments over 25 years, plus the dealer fee, plus the opportunity cost of not investing those dollars, minus the realistic electric-bill offset (not the salesperson's modeled offset), minus the realistic tax credit (not the gross credit).
Run the numbers in writing before you sign anything.
Proverbs 14:15 — "the simple believes everything. The prudent gives thought to his steps." Salespeople using "today only" pricing, urgency around the tax credit, or "you have to sign tonight to lock the rate" are using techniques Scripture explicitly warns the prudent against.
No legitimate solar contract loses its economics if you take 72 hours to read it with your spouse and a financial counselor (Proverbs 15:22).
The Christian decision framework — 6 questions
- Is my house staying in our family 10+ years? If you may move within 5 years, the payback math almost never works on any structure; cash works least badly. Loans and leases create transfer friction.
- What is the cash price versus the financed price, in writing? The gap is the dealer fee. If the installer will not itemize it, the installer is the wrong installer.
- Do I actually owe enough federal tax to use the 30% credit? Pull last year's Form 1040 line 24. If your total tax is under the credit amount, the credit carries forward — model the cash flow accordingly.
- What does my electric bill actually look like for the past 24 months? Get the data from the utility, not the salesperson's "modeled usage." Many quotes assume usage that does not match your meter.
- Have I tithed this season and am I out of consumer debt? Solar comes after tithe (Proverbs 3:9), after a $1,000 starter emergency fund, after the credit cards are gone (Romans 13:8). Pasting solar on top of unsecured debt compounds the bondage.
- Have I prayed with my spouse and counseled with one mature believer (Proverbs 15:22)? A 25-year obligation should never be signed without this step.
When solar is wise — and when it is not
Solar is usually wise when: you own your home with no plans to move, your roof has 20+ years of life left, your annual electric bill is over $1,800, you can pay cash or finance <7 years with a clearly itemized dealer fee, you owe enough federal tax to use the credit. Your house is debt-free or close to it.
In that profile, the cash-purchase payback is usually 6–9 years and the lifetime savings on a 25-year system are $30,000–$60,000 in real dollars.
Solar is rarely wise when: you are financing 20+ years through the installer's preferred lender, you have not seen the cash price in writing, you have credit-card or other unsecured debt, you might move within 5 years, your roof needs replacement first (replacing under installed panels costs $3,000–$6,000 in panel removal/reinstall), or your utility offers minimal net-metering credit.
In that profile, the salesperson's "lower than your power bill" claim is technically true for year one and quietly false for years 2–25.
Continue your study
Read our HELOC biblical analysis, home equity loan vs HELOC comparison, what the Bible says about unsecured debt. 27 Scriptures on debt. To stress-test the decision, run the 50/30/20 budget calculator and the compound interest calculator.
All Scripture quotations from the English Standard Version. This article is for educational purposes and does not constitute financial, tax, or legal advice. Tax credit terms reflect law as of May 2026 and are subject to legislative change. Consult a qualified CPA and a licensed electrician before any solar purchase.