The Hidden Fee Trap in Most Dental Financing (And How to Avoid It)

When you signed up for patient financing for your practice, you probably compared merchant discount fees across providers. Maybe you saw an advertised range and felt good about it. But here’s the question almost no one asks before signing: what fee do you actually pay on most transactions?

For a lot of practices, the answer is a painful surprise.

How Most Financing Providers Price Their Plans

Most patient financing companies don’t charge a single, consistent fee. Instead, they tie the fee your practice pays to whichever payment plan the patient selects at checkout.

Here’s how that typically works. The provider offers several plan tiers — a short-term plan, a mid-range plan, and a longer-term plan. Each tier carries a different merchant fee for the practice. Short-term plans have the lowest fees. Longer-term plans carry the highest. On paper, the menu of options looks reasonable, and your brain anchors to the low end of the advertised range.

But the low end isn’t where most of your transactions land.

Where Patients Actually Land

Think about the typical patient sitting in your office who just got treatment-planned for a crown or an implant case. They open the financing application on a tablet, get approved, and now they’re choosing a payment plan.

Are they picking the shortest plan with the highest monthly payment? Or are they picking the longest plan with the lowest monthly payment?

You already know the answer. Patients overwhelmingly choose the longest available term with the smallest monthly payment. That’s not a guess — it’s basic consumer behavior. When someone is financing a large, unplanned expense, they optimize for cash flow. They want the payment that fits comfortably in their monthly budget.

And that longest-term, lowest-payment plan? It carries the highest merchant fee for your practice.

The Gap Between Advertised and Actual

The advertised “starting at” rate functions like a teaser rate on a credit card. It technically exists, but it’s not the rate most practices actually experience. The fee that matters — the one tied to the plan patients actually choose — is buried in the fine print.

Because patients gravitate toward the longest term, your effective blended fee ends up much closer to the high end of the range than the low end. Multiplied across a year of financed cases, the gap between what you thought you were paying and what you’re actually paying can become substantial.

It also creates an uncomfortable dynamic in your office. Your team knows that the shorter-term plan costs the practice less. But pushing patients toward shorter terms with higher monthly payments isn’t great for case acceptance. So you’re stuck choosing between protecting your margins and getting patients to say yes to treatment.

That’s not a choice you should have to make.

A Simpler Model Exists

What if your merchant fee didn’t change based on the plan the patient picked? What if it was the same predictable rate whether the patient chose the shortest term or the longest one?

That’s what a flat-fee financing model looks like. One rate. No guessing. No spreadsheet required to figure out your real cost per case. The patient picks whatever plan works best for their budget, and your practice pays the same fee regardless.

With a flat fee, everyone’s interests line up: patients get the terms they need, your team doesn’t have to steer plan selection, and your practice pays a predictable cost on every transaction.

What to Ask Your Current Provider

If you’re not sure how your current financing partner structures their fees, here are three questions to ask today:

“What is the merchant fee on each available patient plan?” If the answer is a range, you’re on a variable model. Ask for the specific fee at each term length.

“What percentage of our patients select the longest-term plan?” If your provider can’t or won’t answer this, pull your own data. You’ll likely find that the majority of patients choose the lowest monthly payment option.

“What is our effective blended fee across all transactions?” Take your total fees paid last quarter and divide by your total financed production. That single number tells you what you’re really paying — and it’s almost certainly higher than the “starting at” rate you were sold.

The Bottom Line

Patient financing should help your practice grow, not quietly erode your margins with fees that escalate based on what the patient picks. A flat-fee model aligns everyone’s interests: patients get the payment terms they need, your team doesn’t have to steer plan selection, and your practice pays a predictable, low cost on every transaction.

The next time a financing rep shows you a fee range, ask one simple question: “What does the average practice actually pay?” The answer will tell you everything you need to know.

At Sunbit, we keep it simple with flat, predictable pricing — no variable tiers and no surprises based on which plan the patient selects. For practices with meaningful loan volume, that often translates into significant savings on merchant fees compared to variable-fee competitors.

If that sounds better than what you’re seeing from your partner today, reach out and set up a Sunbit demo.

Know a dental practice that could benefit from Sunbit? Refer them here.

Loans are made by Transportation Alliance Bank Inc. dba TAB Bank, which determines qualifications for and terms of credit.