Learn how to reduce days in AR with proven medical accounts receivable best practices: benchmarks, aging buckets, denial follow-up and AR recovery that works.
Your practice saw the patients. Your providers did the work. The claims went out. But the money is still sitting somewhere between your billing system and the payer. That gap is your accounts receivable, and the number of days it takes to close it says a lot about the health of your practice.
High days in AR rarely come from one big problem. They build up from small delays: a claim held for a missing detail, a denial no one had time to appeal, a payer that never responded and no one called. Each one adds days. Together, they turn earned revenue into cash you may never collect.
This guide explains what days in AR really measures, what a healthy number looks like, and why AR grows. It then walks through the medical accounts receivable best practices that bring days down at every stage, and shows how a dedicated AR team recovers the money that is already aging.
How do you reduce days in AR?
Reduce days in AR by stopping problems before the claim is sent and working every unpaid claim fast after. Verify eligibility before the visit, submit clean claims within 24 to 48 hours, post payments daily, and follow up on every claim not paid within 30 days. Work denials within days, not weeks, and give the oldest balances to a team that does nothing else. Most practices should aim for 30 to 40 days in AR and keep less than 15% of AR over 90 days.
What Days in AR Really Measures
Days in AR is the average number of days it takes your practice to turn a charge into cash. It is one of the clearest single numbers in healthcare accounts receivable, because it captures every delay in the revenue cycle at once.
The common formula is simple:
Days in AR = (Total AR minus credit balances) ÷ Average daily charges
To get average daily charges, take your gross charges for the last three to six months and divide by the number of days in that period. If your practice has $300,000 in AR and charges an average of $8,000 a day, your days in AR is 37.5.
The number on its own can hide a lot. A practice can show 35 days in AR while a large share of old claims sits untouched, because new, fast-paying claims pull the average down. That is why days in AR should always be read with your aging report.
What Is a Healthy Days in AR Number?
There is no single perfect number, because specialty and payer mix matter. But these are the targets most practices use:
Metric | Healthy target | Warning sign |
Days in AR | 30 to 40 days | Above 50 days |
AR over 90 days | Under 15% of total AR, ideally near 10% | Above 20% |
Denial rate | Under 5% | Above 10% |
Net collection rate | 95% or higher | Below 90% |
Industry groups such as HFMA and MGMA point to 30 to 40 days as a strong range, while the average practice runs closer to the high 40s. The gap between the two is real money. For a practice with $5 million in yearly collections, every 1% lift in net collection rate is worth about $50,000.
How Aging Buckets Show Where Money Is Stuck
An AR aging report sorts unpaid balances by how old they are. Each bucket tells a different story, and each needs a different response.
Aging bucket | What it usually means | Chance of collecting |
0 to 30 days | Normal processing time | Very high |
31 to 60 days | A claim is stuck, pended or quietly denied | High, if worked now |
61 to 90 days | Follow-up has been missed or an appeal is needed | Falling |
91 to 120 days | Denials not worked, payer not responding, filing limits near | Low |
Over 120 days | Often written off without a real attempt | Lowest, many collect half or less |
A healthy practice keeps most of its AR in the first bucket, often around 70%. When the 61-plus buckets grow, it means claims are not being worked on time. The longer a claim ages, the harder it is to collect, because timely filing and appeal deadlines start to close.
Why Days in AR Keeps Growing
High AR is almost always a process problem, not a payer problem. These are the root causes we see most:
Front-end errors. Wrong member ID, inactive coverage, or a missing authorization means the claim is denied before anyone looks at it.
Slow charge entry. Notes are signed late, so claims leave the office a week or two after the visit.
Coding and claim errors. Small mistakes cause rejections that sit in a clearinghouse queue until someone notices.
No follow-up system. Claims with no response are not called on until they are 90 days old.
Denials left in a pile. Small-dollar denials feel not worth the time, so they age out.
Payments not posted daily. Underpayments and denials hidden in remittances are not caught until much later.
Patient balances with no plan. Statements go out late or not at all, and patient AR grows on its own.
Medical Accounts Receivable Best Practices That Bring Days Down
The practices with the lowest days in AR do not work harder at collections. They prevent problems early and follow up on a fixed schedule. Here is how that works at each stage.
Before the visit
The fastest claim to collect is the one that is right the first time. Strong AR management in medical billing starts at scheduling: check eligibility and benefits, confirm the right payer, and secure any prior authorization before the patient arrives. Collect copays and known patient balances at check-in. Each of these steps removes a reason for a denial later.
When the claim is built
Charges should be entered and claims sent within 24 to 48 hours of the visit. Every claim should pass through a scrubber, a set of checks that catches coding, modifier and data errors before the payer sees them. A high clean claim rate is the single biggest driver of low days in AR. Our guide on how to improve your clean claim rate covers the checks that matter most.
After the claim is sent
This is where most AR is won or lost. Every claim should have a follow-up date:
Check clearinghouse rejections daily and fix them the same day.
Post every payment and remittance daily, and flag any underpayment against the contract rate.
Follow up on any claim with no response by day 30, by portal or by phone.
Work every denial within a few days of receiving it, find the root cause, and correct or appeal.
Track each payer's timely filing and appeal deadlines so nothing ages past them.
Denials deserve special attention, because most come from a short list of causes. Our breakdown of the common reasons medical claims are denied shows what to look for first.
For patient balances
Patient AR is now a large share of total AR for many practices. Send clear statements soon after the payer pays, offer online payment, and set simple payment plans for larger balances. A patient who gets a bill three months late is far less likely to pay it.
Report and review every month
What gets measured gets worked. Review days in AR, the aging report, denial rate by payer and reason, and net collection rate every month. When one payer or one denial reason starts to grow, you can fix the cause before it reaches the 90-day bucket.
Should You Manage AR In House or Outsource It?
In-house AR can work when you have staff whose only job is follow-up, and who have time to call payers, work denials and track deadlines every day. In most practices, AR work is shared with front desk and billing duties. It is the task that slips first when the office gets busy.
Outsourcing makes sense when your days in AR sit above 45, more than 15% of AR is over 90 days, denials are piling up, or old balances are being written off without a real attempt. A dedicated accounts receivable medical billing team brings the time, the payer knowledge and the follow-up discipline that in-house teams often cannot spare.
How Avorcms Services Helps Reduce Days in AR
Avorcms Services provides medical AR recovery services for practices that want their earned revenue collected, not written off. We work current claims to keep them from aging, and we recover the old balances many billing companies give up on.
Here is what our medical billing AR services include:
A full AR review that sorts your balances by age, payer and cause, so we know where the money is stuck.
Aged claims worked at 60, 90 and 120 plus days, with payer calls, portal checks, corrected claims and appeals.
Denial management for medical practices that fixes the root cause, so the same denial does not keep coming back.
Underpayment checks against your contracted rates on every remittance.
Front-end fixes through our revenue cycle management services, from eligibility checks to clean claim submission within 24 to 48 hours.
Monthly reporting on days in AR, aging, denials and collections, with a dedicated account manager.
Based in St. Petersburg, we provide AR recovery services in St. Petersburg, FL and across Florida, and support practices throughout the United States.
Find Out How Much of Your AR Is Still Collectible
Every claim aging in your AR is revenue your practice already earned. The sooner it is worked, the more of it you keep. Our team will review your aging report, show you which balances are still collectible, and explain how we would bring your days in AR down.
Start with a free medical billing audit, call (727) 662 8558, or email [email protected]. We respond within 24 hours.
Frequently Asked Questions
1. What is days in AR in medical billing? Days in AR is the average number of days it takes a practice to collect payment after a service is billed. It shows how fast charges turn into cash.
2. How do you calculate days in AR? Divide total accounts receivable, minus credit balances, by your average daily charges. Average daily charges are your gross charges for the last three to six months divided by the number of days in that period.
3. What is a good days in AR for a medical practice? Most practices aim for 30 to 40 days. Above 50 days usually points to problems with claim quality, follow-up or denials.
4. What percentage of AR should be over 90 days? Keep AR over 90 days under 15% of total AR, and ideally close to 10%. A higher share means claims are not being worked in time.
5. What is the fastest way to reduce days in AR? Work the claims most likely to pay first: rejections, unanswered claims past 30 days, and fresh denials. At the same time, fix front-end errors so new claims stop adding to the backlog.
6. Can old AR over 120 days still be collected? Often, yes, if the claim is still within the payer's filing or appeal window. The chance of collecting drops sharply with age, so these balances need a focused team working them quickly.
7. What is the difference between AR management and AR recovery? AR management keeps current claims moving so they do not age. AR recovery works the old balances that have already aged, often 60, 90 or 120 days and beyond.
8. How do denials affect days in AR? Every denial adds days, because the claim must be corrected, resubmitted or appealed. A denial that is not worked can stay in AR until it is written off.
9. When should a practice outsource AR recovery? Consider it when days in AR stay above 45, more than 15% of AR is over 90 days, or your team does not have time to follow up on every unpaid claim.
10. Does Avorcms Services offer AR recovery services in St. Petersburg, FL? Yes. Avorcms Services is based in St. Petersburg and provides AR recovery and AR management for practices across Florida and the United States. Call (727) 662 8558 or email [email protected].
Disclaimer: This blog is for informational and educational purposes only and does not constitute legal, compliance, or financial advice. Benchmarks vary by specialty, payer mix and region.
