You open your accounts receivable aging report and see $250,000 in the 90+ day bucket. These claims were billed months ago. They’re technically still collectible. So why does that number matter so much?
Because by the time a claim reaches 90 days, you’ve often missed your best opportunities to resolve it efficiently. The payers who were responsive at 30 days may not remember the claim at 90. The documentation that was easy to locate in week two is buried by month three. And those timely filing deadlines? Some of them have already passed.
The most expensive billing problems are often the ones that age quietly in the background while your team focuses on newer work. Let’s talk about why earlier intervention matters and what that can look like in practice.
Why Claims Age Faster Than You Think
Claims don’t age because billing teams forget about them. They age because small issues go unnoticed until they become bigger problems.
Here’s the pattern we see playing out over and over again: A claim gets submitted with a minor coding error and is denied at 15 days. Your team doesn’t catch the denial notification for another week. By the time someone investigates, corrects the code, and resubmits, the claim is at 35 days. If that resubmission has another issue (maybe a missing modifier this time), you’re suddenly at 60 days before anyone realizes the claim still hasn’t paid.
Reworking a denied claim costs providers an average of $25 and can get as high as $118, and that doesn’t even factor in the revenue delay. When this pattern repeats across dozens of claims, aging AR stops being just a collections issue and starts being a workflow issue.
The other common driver for aging AR? Lack of structured follow-up. Without a system that triggers action at specific intervals, claims can slip from 30 to 60 to 90 days without a single touchpoint. No one calls the payer. No portal check happens. The claim just sits there, aging.
What Changes at Each Stage
The aging buckets on your AR report aren’t arbitrary. They represent meaningful shifts in how hard claims are to collect and how much effort is required to resolve them.
In the 0 to 30 day range, most claims are still in normal processing timeframes. Many payers process claims within 30 days, so accounts in this bucket are either pending or recently paid. Best-in-class billing operations maintain around 65% or more of total AR here.
Once claims hit 31 to 60 days, intervention becomes more valuable. A claim sitting at 45 days isn’t necessarily denied. It might be pending additional review, stuck in a payer queue, or waiting on documentation your team didn’t realize was requested. A quick portal check or phone call at this stage often reveals the issue and gives you time to resolve it.
By 61 to 90 days, you’re working against timely filing deadlines. Many commercial payers enforce 90-day filing windows, and some are shorter. At this point, anything in this bucket deserves high-priority attention.
Industry research shows that collectability drops significantly as claims age, which is why the HFMA recommends keeping AR over 90 days below 10% of total receivables. After 90 days, collectability drops significantly. These claims are expensive to work, difficult to resolve, and increasingly at risk of timing out completely.
What Works: Building Earlier Touchpoints
The solution to growing AR is not working harder on old claims but instead focusing on catching issues earlier, when they’re still manageable.
High-performing revenue cycle teams implement structured follow-up at 30 and 60 days, when claims are still fresh and payers are responsive. One effective approach is a regular review cadence: checking claims at 7 days to confirm payer receipt, 17 days to check processing status, and 30 days to escalate if payment hasn’t been received. This rhythm keeps claims in active status rather than passive waiting.
Segmenting your AR by aging bucket also helps your team prioritize. Claims in the 61 to 90 day range typically need more attention than those in the 0 to 30 day range, and anything approaching a filing deadline should be flagged immediately.
Clean claim submission matters just as much as follow-up. The more claims you can get paid on first submission, the fewer end up aging. Real-time eligibility verification, pre-submission claim scrubbing, and accurate coding all reduce denials, which directly reduces the volume of claims that need rework.
Weekly AR aging reviews can make a big difference too. When leadership reviews aging reports weekly instead of monthly, problems surface faster and teams can course-correct before small issues become patterns.
Why This Matters More for FQHCs
Federally Qualified Health Centers often face additional pressure around AR aging. Many FQHCs operate on thin margins (on average around 2.9%), which means even modest delays in collections can create operational strain.
The payer mix at most FQHCs includes high percentages of Medicaid, Medicare, and uninsured patients. Each requires different follow-up approaches and different timely filing rules. Medicaid managed care plans, in particular, often have shorter filing windows than traditional Medicaid, and missing those deadlines means losing revenue your health center has already earned.
Grant funding cycles also make cash flow management more complex. Section 330 grants provide critical support, but they don’t replace the need for strong patient service revenue. When AR ages and cash flow tightens, health centers may find themselves unable to cover operational expenses between grant disbursements, even when their overall financial position looks stable on paper.
For FQHC leadership, monitoring AR aging isn’t just about collections performance. It’s about organizational sustainability. Best practice for health center liquidity is a minimum of 90 days cash on hand, and high AR aging directly impacts your ability to maintain that cushion.
Moving Forward
Reducing aging AR doesn’t require a complete overhaul – just consistent habits applied at the right intervals.
Start by reviewing your current AR aging distribution. If more than 20% of your total AR is sitting in buckets older than 60 days, earlier intervention could help. Look at what’s causing claims to age. Are denials going unnoticed? Is follow-up happening too late? Are coding errors creating rework cycles that add weeks to resolution time?
Then build a follow-up rhythm that fits your team’s capacity. If you can’t implement a detailed cadence immediately, that’s okay! Start simple and add more touchpoints as your team adjusts. Consistency matters more than complexity.
The 90-day mark isn’t when AR work begins. It’s where AR work becomes exponentially harder. By shifting your focus to earlier intervention, you can protect revenue before it becomes at risk, reduce the cost of collections, and build a revenue cycle that works proactively.
If your organization needs support building more effective follow-up workflows or strengthening your revenue cycle processes, our team at Practice Management would love to talk.