Dental Practice Accounts Receivable: When to Worry

The average dental practice is carrying $116,744 of work it has already performed and has not been paid for. That figure comes from Sikka Software data aggregated across more than 12,500 practices, and it had climbed 36% from $85,692 in five years, according to DentistryIQ. Production charts kept going up the whole time, which is exactly how this problem hides.

Here is our position, and plenty of consultants will argue with it: the total AR number on your monthly report is nearly useless, and a practice with $200,000 outstanding can be in better financial health than one sitting at $70,000. What matters is the shape of the aging report and the direction the 60-day bucket is moving. Accounts receivable is not money in transit. It's a written record of every payment conversation your team decided not to have.

Thirty Days Is the Alarm, Not Ninety

Most practices treat 90 days as the panic threshold. That's about 60 days too late. The American Dental Association is direct about it: "Accounts that are more than 30 days past due require extra attention," with staff instructed to call the patient and ask for payment. Not mail a statement. Call.

The reason that line sits at 30 and not 90 is behavioral, not accounting. At 30 days past due, the patient still remembers the appointment, still feels the crown in their mouth, and still associates the balance with something they received. At 90 days, you are asking someone to pay for a memory. The clinical work has been absorbed into their normal life, the bill has become an irritation, and you have nothing left to push on. Nothing about the balance changed. Everything about the conversation did.

So when owners ask us when to worry, the honest answer is that worry is the wrong frame. You should be acting at 31 days, every month, on every account, as a matter of routine. Worry is what happens when routine failed three months ago.

The Benchmarks Disagree, and That Spread Is Useful

There are two live standards for AR aging, and they don't match. Dental Economics puts the accounts-receivable ratio at 1.0, meaning total AR should equal roughly one month of average production, and holds that "no more than 20 percent of your accounts receivable should be aged 60 days or more." Pearly runs tighter: about 75% of receivables at 30 days or less, no more than 10% past 60 days, and only around 3% past 90.

Our view: use the tight number as the target and the loose number as the fire alarm. If more than 10% of your AR is past 60 days, you have a process defect worth a staff meeting. If more than 20% is past 60 days, you have a collections problem that is now actively costing you money, and the cash you think you'll eventually recover is mostly not coming.

The 1.0 ratio is the single most useful screening test because it scales. A practice producing $80,000 a month with $95,000 in AR is fine. A practice producing $80,000 a month with $210,000 in AR has two and a half months of production parked outside the bank, and no amount of growth will fix it, because growth adds to the numerator too.

The 98% Rule Catches It Before the Aging Report Does

Aging reports are a lagging indicator. By the time a balance shows up in the 60-day column, the decision that created it happened two months ago at the front desk. The leading indicator is your collection rate against adjusted production, and the ADA's KPI guidance draws the line plainly: "If a practice isn't collecting 98% of billable/adjusted production, your policies and scripts may need to be adjusted."

Note what the ADA blames. Not the economy, not insurance, not patients. Policies and scripts. That's a diagnosis, and it's the right one. A 94% collection rate is not a run of bad luck across a thousand patients. It's the same four or five permissions, granted the same way, a thousand times.

What Most Owners Get Wrong: They Audit the Balance and Ignore the Slope

The specific mistake is this: the owner reviews total AR once a month, compares it to last month, and if it's flat or down, moves on. Solo owners and small-group owners who run their own numbers make this error most, because the total is the easiest figure to pull and the aging breakdown takes real effort to read.

Flat total AR can conceal a steadily rotting book. If your current-month receivables are growing while your 60-plus bucket is also growing, the total can sit still for a year while the collectible portion of it drains away. You're replacing good paper with bad paper and reporting stability.

The second version of this mistake is the owner who does look at the aging report but reads it as a to-do list rather than a diagnostic. They see $31,000 past 90 days and assign someone to chase it. Nobody asks the useful question, which is how those accounts got to 90 days when a call was supposed to happen at 31. Chasing the tail treats the symptom and guarantees you'll have the same tail next quarter.

A third, quieter error: treating insurance AR and patient AR as one pile. They are different businesses with different failure modes. An unpaid claim at 45 days is usually an administrative defect: missing attachment, wrong code, coordination-of-benefits gap, claim never transmitted. A patient balance at 45 days is a relationship and policy defect. One gets fixed by a person on hold with a carrier. The other gets fixed by changing what your team says before the patient sits in the chair. If your reports blend them, you can't tell which one is bleeding, and you'll deploy the wrong person against it.

A $1.4M Practice With $210,000 on the Books

Run it with real numbers. Take a practice producing $1.4 million a year, collecting 94% of adjusted production instead of the ADA's 98%. That 4-point gap is $56,000 a year that was earned and never banked.

Now the balance sheet side. One month of average production on $1.4 million is $116,667, which is where the 1.0 ratio benchmark says total AR should sit. This practice is carrying $210,000, an AR ratio of 1.8. Excess AR above the benchmark is $93,333.

That $93,333 is not lost, but it isn't free either. Financed at 10%, the cost of having that cash outside your account instead of inside it is roughly $9,333 a year in carry.

Then the aging split. Say 34% of the $210,000 is past 60 days, which is $71,400. Against the 20% ceiling, the compliant figure would be $42,000. Against the tighter 10% standard, it would be $21,000. So this owner is carrying between $29,400 and $50,400 of aged receivable that shouldn't exist.

Here's the part that changes the decision. Assume the practice puts a team member on collections six hours a week at a fully loaded $28 an hour. That's $8,736 a year in labor aimed at the tail. If that effort recovers 25 cents on the dollar against $30,000 of genuinely old balances, it brings in $7,500. You spent $8,736 to collect $7,500 and called it a collections program.

Compare that to the front end. Moving collection at time of service enough to close just 2 points of the collection-rate gap on $1.4 million of production is $28,000, and it costs you a script change and two weeks of holding your team to it. We'd take the script change over the chase every time. The recovery work still has to happen, but it is cleanup, not strategy, and staffing it like strategy is how practices spend real money defending a pile of paper.

When We'd Write It Off

This is where we part company with the standard advice, which is to pursue everything forever because writing off balances "teaches patients they can skip." We don't buy it. An account past 120 days, already called twice, with no payment arrangement and no response, is an asset in name only. Carrying it inflates your AR, distorts your ratio, and consumes attention that belongs at 31 days.

We'd set a hard policy: two documented calls and a written arrangement offer inside 90 days. No arrangement by 120, and it goes to a third party or off the books. Clean the ledger so the number you manage is the number you can actually collect. An aging report full of fiction is worse than a smaller honest one, because it makes every ratio you compute a lie you told yourself.

The counterargument is that this leaves money on the table. It does, and the money it leaves is cheaper than the money it saves. And be aware of the resale angle: a buyer's accountant will age your receivables and discount the tail to near zero anyway. You don't get paid at closing for balances you refused to face.

Five Days to a Clean Aging Report

This week, pull your aging report split into insurance AR and patient AR, and compute your AR ratio: total AR divided by your trailing twelve-month production divided by twelve. Then pull your collection rate against adjusted production for the last three months and see how far you are from 98%. Set one rule on Monday morning, which is that every account crossing 31 days past due gets a phone call, not a statement, and name the person responsible by Friday. If your 60-plus bucket is above 20%, cancel something else this month and fix that instead.

One thing we're watching: whether AR ratios drift upward across the board as carriers extend claim-adjudication cycles, because a benchmark built in a faster payment era may be quietly unfair to practices doing everything right. And we'd revise our write-off stance if an owner showed us sustained recovery above 40 cents on the dollar past 120 days at a labor cost under 15% of the amount collected. Nobody has yet.

Uncollected production is the most expensive kind of overhead, because your overhead percentage is measured against what you actually collect, not what you billed. Collecting 94% instead of 98% means your real overhead is several points worse than your books suggest. If you want to see what that gap does to your margin, run your own numbers through our free overhead calculator and compare your collection-adjusted overhead to practices your size.