0% APR contractor financing lets a homeowner pay for a project in equal monthly installments with no interest, as long as the offer is a true 0% product and they follow the terms. The catch lives in two places. First, some offers are deferred interest plans that charge all the accrued interest retroactively if even one dollar remains at the deadline. Second, the contractor funds the promotion through higher dealer fees, typically 5 to 15 percent of the job. Know which structure you are selling before you say a word at the kitchen table.
Key takeaways
- True 0% APR charges no interest during the promo period; deferred interest accrues from day one and hits retroactively if the balance is not paid in full on time.
- The language test: "no interest IF paid in full" signals deferred interest, while "0% intro APR for X months" signals a true 0% product. The CFPB has urged issuers toward the second structure.
- Wisetack includes a 3-month 0% option for every approved merchant, then charges 4.9%, 6.9%, or 9.9% add-on fees (on top of its 3.9% base) for 6, 12, or 24-month 0% terms.
- GreenSky's 0% promo plans are deferred interest, with merchant fees around 8 to 15% versus 3 to 6% on standard loans, per its published merchant pages.
- Never promise a homeowner they will get 0%. Approval and terms come from the lender, and financing platforms themselves tell merchants not to quote specific pricing.
True 0% APR vs deferred interest: the difference that matters
True 0% APR and deferred interest look identical in a sales pitch and behave completely differently in month 19. With a true 0% product, no interest accrues during the promotional period. A homeowner who finances $15,000 over 18 months pays $833.33 a month, and if a balance somehow remains at the end, interest starts on that remaining balance from that point forward. Nothing retroactive.
Deferred interest works another way. Interest accrues at the plan's full rate from the day of purchase, gets parked in a deferred bucket, and is waived only if the homeowner pays the entire balance before the deadline. Carry $500 past the cutoff on a plan with a 25% standard rate and the lender charges back roughly 18 months of interest on the original $15,000, which can add several thousand dollars in a single statement cycle. GreenSky's own interest rate disclosures describe this mechanic plainly: interest is billed monthly during the promo and waived only when the purchase balance is paid in full before the period ends.
Regulators have noticed. The Consumer Financial Protection Bureau has publicly encouraged retail credit issuers to drop deferred interest promotions in favor of more transparent 0% APR offers, saying consumers routinely feel tricked when the retroactive charge lands. Deferred interest is legal, but the CFPB's own guidance treats true 0% as the cleaner structure, and that matters for how you protect your customer relationships.
How to tell which type of 0% financing you are offering
The disclosure language tells you which structure a 0% financing offer uses, and the tell is one word.
- Deferred interest language: "No interest if paid in full within 18 months." The word "if" is the red flag. Interest has been accruing the whole time; it only gets waived when the deadline is met.
- True 0% language: "0% introductory APR for 18 months." No "if", no accruing interest, no retroactive charge.
Read your own program's consumer disclosures before you pitch it. Plenty of contractors have sold "no interest" plans for years without knowing which side of this line their lender sits on, and the homeowner who gets burned will leave the one-star review on your business, not the bank's.
What the major platforms offer for 0% APR in 2026
Wisetack offers true 0% APR installment loans, not deferred interest. Every approved merchant can offer a 3-month 0% option at the standard 3.9% transaction fee, according to the Wisetack Help Center. Longer 0% terms are paid add-ons: 4.9% for 6 months, 6.9% for 12 months, and 9.9% for 24 months, each stacked on top of the 3.9% base fee. Because these are fixed installment loans, the homeowner gets equal predictable payments. Full fee breakdown in our Wisetack contractor financing review.
Hearth takes a subscription approach. Its pricing pages list a flat annual membership (most contractors invest roughly $2,000 to $6,000 per year depending on plan, plus a $99 setup fee) with no per-loan dealer fees. The 0% piece is an optional add-on: for $399 per year, contractors can present homeowners 0% introductory APR credit card offers with promotional periods of 6 to 18 months. These are credit cards, not installment loans, so qualified homeowners (typically stronger credit) get a credit line rather than a fixed payment. Our Hearth cost breakdown covers the full subscription math.
GreenSky runs promotional plans from 3 to 24 months, and its published materials describe them as deferred interest: interest accrues monthly and is waived only if the balance is paid in full before the promo ends. Merchant fees on standard GreenSky loans run about 3 to 6%, climbing to roughly 8 to 15% on 0% promotional plans. The homeowner sees "0%", you pay for it, and the retroactive interest risk sits with your customer. See GreenSky vs Hearth for the dealer fee math side by side.
Regions Home Improvement Financing is the current name for EnerBank, which Regions Bank acquired in 2022 and folded into its brand. The program still offers no-interest and same-as-cash loan products alongside standard installment loans, with contractor fees that vary by product. If older articles you have read reference "EnerBank" as a standalone company, that is stale; the comparison in Hearth vs EnerBank (Regions) explains what changed.
Service Finance Company advertises more than fifty financing programs on its site, explicitly including No Interest, Deferred Interest, and Long Term Installment options. Which structure you are actually enrolled in depends on your program rate sheet, so confirm it in writing. We compare the models in Hearth vs Service Finance.
What 0% promos cost you: the dealer fee math
Promotional 0% financing always costs the contractor more than standard-rate financing, because the lender gives up interest income and recovers it from you. Here is how the math lands on a $15,000 job, using each platform's published fee structure as of mid-2026:
| Platform | 0% product type | What you pay | Net on a $15,000 job |
|---|---|---|---|
| Wisetack (12-month 0% add-on) | True 0% installment | 3.9% + 6.9% = 10.8% | $13,380 |
| Wisetack (3-month 0%, included) | True 0% installment | 3.9% | $14,415 |
| GreenSky (0% promo plan) | Deferred interest | 8 to 15% | $12,750 to $13,800 |
| Hearth (0% credit card add-on) | True 0% intro APR | $399/yr add-on + membership, no per-job fee | $15,000 minus prorated subscription |
| Service Finance / Regions | Program dependent | Varies by rate sheet | Confirm before enrolling |
Two things to check before you offer any promo tier. First, price your jobs so a 10 to 15% fee does not erase your margin, but read your merchant agreement carefully: most programs prohibit charging a financed customer more than a cash customer. The clean fix is building the cost into your baseline pricing across the board. Second, remember that a subscription model only beats per-transaction fees at volume; our guide to dealer fees in contractor financing walks through the break-even math.
Monthly payment framing: the numbers to use in the room
Monthly payment math on true 0% financing is the simplest in the business: loan amount divided by number of months, nothing else. That makes it easy to quote accurately at the table.
| Project size | Term | Monthly payment at 0% |
|---|---|---|
| $8,000 | 18 months | $444 |
| $12,000 | 18 months | $667 |
| $15,000 | 18 months | $833 |
| $20,000 | 12 months | $1,667 |
| $25,000 | 24 months | $1,042 |
"This bathroom comes out to $833 a month for 18 months, with no interest if you qualify for that option" is a sentence a homeowner can process instantly. On larger projects, also show a longer standard-rate term: $30,000 at 0% for 18 months is $1,667 a month, while the same job at 8% over 7 years is about $467 a month. Presenting both moves the homeowner from a yes/no decision to a which decision, and our guide on how to pitch financing covers that framing in depth.
What to tell homeowners (without creating a compliance problem)
The compliance-safe script has three rules: describe, never guarantee, and let the lender's paperwork state the terms. You are a contractor, not a loan officer. The lender handles the credit decision and delivers the Truth in Lending disclosures; your job is to explain the structure honestly and point the homeowner to the actual offer terms.
When a homeowner asks "is there really no interest?", something like this works:
"The 0% option through our financing partner is a true 0% APR loan, which means no interest builds up in the background during the term. That is different from store-card style deals where interest accrues the whole time and gets charged back if you miss the payoff deadline. Whether you qualify for the 0% option depends on the lender's approval, so the application will show you your exact options and the disclosure will spell out every term before you commit."
Notice what that script never does. It never promises approval, never quotes a rate the lender has not offered, and never claims every applicant gets 0%. Wisetack's own merchant guidance says enrolling in 0% add-ons does not guarantee any given customer will qualify, and warns merchants not to promise specific pricing. Keep every conditional in your pitch ("if you qualify", "the lender will show your options") and you stay on the right side of both the platform agreement and consumer protection expectations. For the follow-up questions that come next, our list of 10 homeowner financing objections has word-for-word responses.
Common mistakes contractors make with 0% offers
Contractors lose money and trust on 0% financing in predictable ways. The five below account for most of the damage:
- Promising 0% before prequalification. The homeowner who hears "you'll get 0%" and is approved at 14.99% feels baited. Always say "0% options are available for qualified applicants".
- Not knowing your own product's structure. If you cannot say whether your program is true 0% or deferred interest, you cannot brief the homeowner honestly. Read the consumer disclosure once; it takes five minutes.
- Selling deferred interest to a homeowner who plans to carry a balance. That plan only works for people who will genuinely pay it off inside the window. Steer balance-carriers toward a standard installment term instead.
- Ignoring the fee stack. A 12-month Wisetack 0% loan costs 10.8%, not 3.9%. Quote jobs with the real fee in mind.
- Forgetting credit realities. True 0% products generally require solid credit, and a declined homeowner still needs a path to yes. Know what happens to applicants across the credit spectrum; our piece on how contractor financing affects homeowner credit scores covers what to say.
How we put this together. We compared the published 0% APR structures and merchant fees of Wisetack, Hearth, GreenSky, Regions Home Improvement Financing, and Service Finance using each company's own pricing pages and help center documentation, plus the Consumer Financial Protection Bureau's published guidance on deferred interest promotions. Fee figures were last verified in July 2026; programs change their rate sheets periodically, so confirm current numbers with your rep before enrolling.
Frequently asked questions
Is 0% contractor financing really interest free?
Yes, a true 0% APR product charges no interest as long as the homeowner follows the loan terms. The exception is deferred interest plans, where interest accrues silently from day one and is charged retroactively if the full balance is not paid before the promotional deadline.
Who actually pays for 0% financing?
The contractor pays for most of it, through dealer fees or subscription costs the lender charges to fund the promotion. Expect roughly 8 to 15% on GreenSky promo plans and 10.8% total on a 12-month Wisetack 0% loan, versus 3 to 6% for standard-rate products.
What happens if a homeowner misses the deferred interest deadline?
Missing a deferred interest deadline triggers a retroactive charge of all the interest that accrued on the original balance from the purchase date, even if only a small amount remains unpaid. On a $15,000 project at a mid-20s APR over 18 months, that can mean thousands of dollars added at once.
Can every homeowner qualify for a 0% APR option?
No, 0% options are approval dependent, and the strongest offers generally go to applicants with good to excellent credit. Financing platforms explicitly tell merchants that enrolling in 0% programs does not guarantee any individual customer will see a 0% offer, so never promise it in your pitch.
Is deferred interest financing illegal?
Deferred interest is legal in the United States, but the Consumer Financial Protection Bureau has pressed issuers to replace it with more transparent true 0% APR offers because consumers frequently misunderstand the retroactive charge. Contractors are free to offer it; the reputational risk of a burned customer is the real cost.
Should I offer 0% or a low-rate long-term plan?
Offer both and let the homeowner pick, because they solve different problems. 0% minimizes total cost for homeowners who can handle a bigger payment, while a 7 to 8% rate stretched over 5 to 7 years produces a much lower monthly number on large projects.
Want 0% offers without per-job dealer fees? Hearth's subscription model includes access to its lender network with no per-transaction fee, and 0% intro APR credit card offers as a $399 per year add-on. See if Hearth fits your business.
