How to Reduce Days in Accounts Receivable: A Practice Manager's Playbook

By RCMAXIS Revenue Cycle Team  ·  June 2026  ·  13 min read

Days in AR is the single most important operational metric in revenue cycle management. It measures how long, on average, it takes your practice to collect payment after services are rendered. Reducing it is not about working harder — it's about fixing the specific upstream problems that create downstream collection delays. This guide breaks down exactly where AR days accumulate and how to systematically eliminate each cause.

1. Know Your AR Aging Profile Before You Fix Anything

Most practices look at their total AR balance and days in AR without understanding the composition. The aging breakdown tells you far more than the total number.

Run this aging report broken out by payer — not just in total. A 120+ day problem with a single commercial payer looks very different from a systemic issue across all payers. The payer-level breakdown tells you exactly where to direct your follow-up resources.

2. Front-End Fixes That Reduce AR Days Before Claims Are Even Submitted

Most AR problems are created before the claim leaves your office. Front-end failures — eligibility errors, missing authorizations, incomplete demographic data — are the leading cause of preventable claim rejections.

Eligibility Verification (The Single Biggest Lever)

Verifying insurance eligibility the day before or morning of the appointment eliminates the single largest source of preventable rejections. Best practices:

• Verify eligibility for every scheduled patient — even established patients. Insurance changes constantly without notification.
• Confirm not just active coverage but also: deductible status, copay/coinsurance amounts, out-of-pocket maximum, and any authorization requirements for the planned service.
• Flag eligibility failures at check-in so staff can collect the correct payment method or reschedule if needed.
• For high-volume practices: automated batch eligibility verification the night before eliminates morning bottlenecks.

Prior Authorization Tracking

Authorization-related denials are consistently among the top 3 denial categories across all specialties. The fix is not faster appeals — it's preventing the authorization gap in the first place:

• Maintain a payer-specific authorization requirement matrix for every procedure you perform. Update it quarterly.
• Track authorization expiry dates — authorizations obtained 30 days before service often expire before the appointment date for complex cases.
• Never allow a scheduled procedure with a required authorization to reach the appointment date without confirmed auth in hand.

3. Clean Claim Rate: The Core Metric

Your clean claim rate — the percentage of claims accepted on first submission without rejection or denial — is the most direct predictor of days in AR. Every rejected claim adds a minimum of 3–5 days to your AR cycle. Every denied claim that requires appeal adds 21–45 days.

How to Improve Your Clean Claim Rate

• Pre-submission claim scrubbing: Every claim should pass through automated validation rules before submission — checking NPI validity, payer-specific coding requirements, NCCI bundling edits, and modifier requirements.
• Rejection analysis by reason code: Track the top 5 rejection reasons each month and build process fixes for each. Most practices have 2–3 rejection reasons accounting for 60–70% of their total rejections.
• Coder education: Quarterly coding accuracy audits identify documentation and coding patterns that consistently trigger rejections or denials. Fix the pattern, not individual claims.

4. Payer Follow-Up: The Most Neglected AR Lever

Outstanding claims don't pay themselves. Systematic follow-up with payers — on a defined schedule, by aging bucket — is where most practices lose the most recoverable revenue.

Follow-Up Frequency by Aging Bucket

Payer prompt pay laws: Every state has prompt pay statutes requiring commercial payers to pay clean claims within a defined timeframe — typically 30–45 days for electronic claims. Knowing your state's law and citing it on follow-up calls dramatically accelerates resolution on aged claims.

5. Denial Management Workflow

Denied claims are not lost revenue — they're deferred revenue waiting for a response. The practices with the lowest AR days treat every denial as a time-sensitive work item, not a background administrative task.

The 48-Hour Denial Rule

Every denied claim should be reviewed, categorized, and actioned within 48 hours of the denial posting. Why 48 hours? Because payer appeal deadlines — typically 90–180 days from the date of denial — start the clock immediately. And because the physicians and staff who documented the service are most available and accurate shortly after the date of service.

Categorize Denials to Fix Root Causes

• Coding denials: Wrong code, missing modifier, NCCI edit violation → fix at the coder level
• Authorization denials: Missing or expired auth → fix at the scheduling/front-office level
• Eligibility denials: Coverage terminated or wrong payer billed → fix at the eligibility verification level
• Medical necessity denials: Documentation doesn't support the service billed → fix at the clinical documentation level
• Duplicate claim denials: Same claim submitted twice → fix at the claim submission workflow level

6. Patient Collections: The AR Category Most Practices Neglect

Patient responsibility now accounts for 25–35% of total practice revenue — up from under 10% a decade ago due to rising deductibles. Patient AR typically ages faster and writes off at higher rates than payer AR, making front-end collection the only reliable strategy.

• Collect at time of service: Copays, known deductibles, and prior balances should be collected at check-in — not billed afterward. Collecting $50 at check-in costs nothing. Billing and collecting $50 post-service costs $8–$12 in administrative expenses.
• Provide cost estimates before elective procedures: Patients who receive a cost estimate before service pay faster and have lower dispute rates. Require this for any service over $100 in anticipated patient responsibility.
• Offer payment plans proactively: A patient with a $1,200 deductible balance they can't pay in one check is far more likely to pay via a 6-month payment plan than to respond to repeated statements.
• Set a statement cycle: Send first statement within 14 days of claim adjudication. Second statement at 30 days. Phone call at 45 days. Third and final notice at 60 days before sending to collections.

7. The AR Reduction 90-Day Action Plan

Practices that implement these changes in sequence — rather than all at once — see faster, sustainable AR improvement:

1. Week 1–2: Run a full AR aging analysis by payer. Identify the top 3 payers driving 120+ day balances and the top 3 denial reason codes.
2. Week 3–4: Implement same-day eligibility verification for all scheduled patients. Track daily rejection rate.
3. Month 2: Build a denial categorization report. Assign process owners to the top 3 denial categories. Begin weekly denial review meetings.
4. Month 3: Implement systematic follow-up calendar for 61–90 day payer AR. Measure clean claim rate weekly.
5. Month 4 onward: Measure days in AR monthly. Each month it should drop 1–3 days until you reach your target range.