An accounts receivable (AR) aging report is the tool a dental billing coordinator uses to see every unpaid balance a practice is owed, sorted by how long it's been outstanding — current, 30, 60, and 90-plus days.
Some of that AR is owed by insurance on a submitted claim; some is owed directly by the patient.
Working it well means pulling the report on a set schedule and following up on the oldest, highest-risk balances before they become uncollectible.
The short answer
An accounts receivable aging report lists every dollar a dental practice is owed and hasn't collected yet, sorted by how long each balance has sat unpaid.
It's the single view a billing coordinator works from to see what's overdue, what's stalling, and what needs a follow-up call or a resubmitted claim before it goes uncollectible.
The report groups every open balance into buckets by age: current, then 30, 60, and 90-plus days outstanding.
Some of what's in those buckets is owed by insurance on a claim that hasn't paid yet; some is owed directly by the patient.
Working AR means running that report regularly and working the oldest, highest-risk balances first — not letting them drift into the last bucket.
The aging buckets: current, 30, 60, and 90+ days
Every practice-management system builds its aging report around the same bucket structure, even when the exact labels differ slightly: current (not yet due, or just submitted), 30 days, 60 days, and 90-plus days outstanding.
The buckets aren't just a sorting convenience — they signal how a balance should be worked.
A claim sitting in the current bucket is often just inside the payer's normal processing window and doesn't need action yet.
A balance that's moved into 30 or 60 days is worth a status check: has the claim actually been received, is it pending more information, or has it quietly denied without a call to explain why.
A balance in the 90-plus bucket gets worked first, because the longer it sits, the more likely it becomes uncollectible — a timely-filing deadline can pass, a patient can stop responding to statements, or a payer's appeal window can close.
What this article doesn't state — and why
Patient AR vs. insurance AR
Not all AR is the same kind of unpaid. Insurance AR is a submitted claim the payer hasn't settled yet — it's sitting with the insurer, not the patient, and the billing coordinator's job is confirming the claim was received, tracking it against the payer's normal turnaround, and following up or appealing once it's overdue.
See how to read a dental EOB for what happens once that claim comes back — a denial, a downgrade, or a payment that clears the balance.
Patient AR is the portion of a bill dental insurance doesn't cover, or the whole balance if there's no insurance at all — deductibles, coinsurance, or a self-pay balance the patient owes directly.
Working it looks different: statements, phone reminders, payment plans, and, for balances that go stale long enough, whatever the practice's collections policy calls for.
A single treatment plan can generate both at once — part of the balance sitting in insurance AR while the claim processes, and the patient's portion sitting in patient AR from the day of service.
A billing coordinator tracks each separately, because a slow-paying insurer and a slow-paying patient call for two different follow-ups, not one.
The AR follow-up workflow
Working AR is a recurring task, not a one-time cleanup.
A typical cycle looks like this:
- Pull the aging report on a set schedule — often weekly — rather than only when a balance becomes a problem.
- Work the oldest bucket first. A balance close to a timely-filing or appeal deadline takes priority over one that just turned 30 days old.
- Confirm status before assuming a problem. An insurance balance that hasn't paid yet may just be inside the payer's normal turnaround — check the claim's status before treating it as overdue.
- Follow up by type. An unpaid insurance claim gets a status call to the payer, or a resubmission if it was never received; an unpaid patient balance gets a statement or a call, and a payment-plan conversation if the balance is large.
- Document every contact — what was said, by whom, and what the next step is — so a balance doesn't sit untouched until the next time someone pulls the report.
- Escalate what's actually stalled. A denied claim gets corrected and resubmitted or appealed (see CDT codes for the coding side of a corrected claim); a patient balance that's gone unanswered gets handled per the practice's collections policy.
The goal isn't clearing the report to zero — some AR is always in flight.
It's making sure nothing ages past the point where it can still be collected.
How AR ties back to claims, EOBs, and CDT codes
AR doesn't start with the aging report — it starts with the claim. Insurance verification sets the expectation for what a plan should pay before treatment happens; the claim itself is coded against the CDT code set and submitted after.
What comes back — paid, denied, downgraded, or bundled, as explained in how to read a dental EOB — determines whether that claim clears out of AR or needs more work.
A claim that's miscoded, under-verified, or missing documentation doesn't just risk one denial — it tends to come back into AR again after a resubmission, aging further while it's corrected.
Getting the front end of the process right is a big part of why a balance sits current instead of stacking up in the older buckets.
This article is general career information, not accounting or billing advice specific to any practice or payer. Practice-management systems vary in exactly how they label and calculate aging buckets.
Who works AR: billing coordinator vs. front desk
Running AR is core billing-coordinator work, not front-desk work — see dental billing coordinator vs. front desk for the fuller boundary between the two roles.
The front desk's money tasks happen around the visit itself: verifying coverage, collecting the co-pay, taking the patient's information.
AR follow-up happens afterward, on balances that have already aged past the visit — squarely on the billing side.
In a smaller practice, the same person often does both, checking patients in during the day and working the aging report in the gaps.
Whoever holds the title, pulling and working an aging report on a set schedule is one of the clearest markers that a posting is billing work rather than front-desk intake.
See how to become a dental billing coordinator for where AR fits into the fuller skill set the role expects, and check current dental billing coordinator jobs for what practices are hiring for now.