AR Management
Medical Billing AR Days Benchmark for 2026
In medical billing, days in accounts receivable (A/R) measures how long it takes to collect. Under 40 days is generally healthy, best-in-class practices run 30 to 35, and over 50 days signals a problem. Aged A/R over 90 days should stay under about 15 to 20 percent of total A/R.
Days in accounts receivable is the single clearest read on how fast your practice turns care into cash. It is easy to calculate and easy to benchmark, and a rising number is usually the first sign that follow-up or denials are slipping. Here is what a healthy A/R days figure looks like, how it varies, and how to move it.
How A/R days is calculated
Days in A/R equals your total accounts receivable divided by average daily charges (total charges over a period divided by the number of days in it). It tells you, on average, how many days of revenue are sitting uncollected. Track it monthly and watch the trend, not just the number.
Healthy vs at-risk benchmarks
- Under 40 days: healthy for most practices.
- 30 to 35 days: best-in-class.
- 40 to 50 days: watch closely, follow-up may be slipping.
- Over 50 days: a problem, usually denials or A/R follow-up falling behind.
- A/R over 90 days: keep under roughly 15 to 20 percent of total A/R.
How it varies by specialty
Benchmarks shift with payer mix and claim complexity. Practices weighted toward government payers or surgical and specialty claims (with more prior authorization and higher dollar values) tend to run higher A/R days than high-volume, low-complexity primary care. Compare yourself to your own trend and to peers in your specialty, not to a single universal number.
How to bring A/R days down
The levers are front-loaded: verify eligibility and secure authorizations before the visit so claims go out clean, submit quickly, and work A/R by payer and dollar value the moment claims age. Catch underpayments against contracted rates, and route denials to resolution instead of letting them sit. Automating the follow-up is where practices claw back the most, because nothing stalls.
How MedXFlow AI agents handle this
MedXFlow's AI agents work accounts receivable automatically - following up on aged claims by payer and dollar value, detecting underpayments against contracted rates, and driving days-in-A/R down while escalating exceptions to staff.
Related resources
Frequently asked questions
What is a good days in A/R for medical billing?
Under 40 days is generally healthy, and best-in-class practices run 30 to 35 days. Above 50 days usually points to a follow-up or denial problem.
How do you calculate days in A/R?
Divide total accounts receivable by average daily charges (total charges for a period divided by the number of days in that period). The result is the average number of days revenue sits uncollected.
What percentage of A/R should be over 90 days?
Aim to keep A/R aged over 90 days under roughly 15 to 20 percent of total A/R. A higher share signals that older claims are not being worked to resolution.