How to Clean Up Inherited AR When You Take Over a Practice

Inherited AR is not the same as current AR. It comes with unknown history, payor contacts that were not documented, denials that were noted but not worked, patient balances that received one statement and nothing after, and timely filing windows that may already be closed on claims that still appear as open receivables.

Before any recovery work begins, the priority is triage: understand what the inherited portfolio actually contains, protect the accounts that still have a recovery window, and avoid wasting effort on balances that cannot be collected regardless of follow-up intensity. This is a 30/60/90-day plan to do it correctly.

Disclaimer: This article is for general informational and educational purposes only. It does not constitute legal, financial, or compliance advice. AR recovery approaches, write-off policies, and triage standards vary by practice, payor, and market. Consult qualified legal and financial advisors before making AR disposition decisions following a practice transition.

Key Takeaways

• The first 30 days after inheriting AR should focus on data integrity, access, and deadline protection, not collection action. Acting before you understand the portfolio produces write-offs you could have prevented and effort on accounts you cannot recover.
• Inherited AR requires a triage classification before any follow-up begins: current and collectible, denied and appellable, aged and recoverable within the timely filing window, beyond recovery, or misclassified.
• Timely filing deadlines are the most urgent variable in an inherited AR portfolio. Any claim approaching its timely filing limit must be identified and acted on before any other work.
• AR cleanup is a root-cause process, not just a recovery process. What the inherited backlog reveals about prior billing practice informs the controls the practice needs to prevent the same AR from accumulating again.

Why Inherited AR Needs Triage Before Collection Begins

Inherited AR, whether from a practice acquisition, a management change, a billing vendor switch, or an internal billing takeover, differs from current AR in one critical way: you did not produce it and you do not know its history. The prior billing team’s documentation practices, their follow-up discipline, their write-off policies, and their appeal habits all determine what the inherited portfolio actually contains. Assuming it looks like current AR and applying the same workflow is the most common mistake.

Before any collection effort begins, the practice needs to answer four questions about the inherited portfolio.

• First: which accounts are still within their timely filing window, meaning a corrected claim or appeal can still be submitted?
• Second: which accounts have documented follow-up history versus no history at all?
• Third: what percentage of the accounts are clinically correctible if they were denied for documentation?
• Fourth: what percentage are contractual adjustments that should have been written off but were not?

Helpful reads:

• The AR recovery process that applies once triage is complete is covered in the AR recovery guide.
• The billing audit that confirms what the inherited portfolio actually contains is the first tool. The medical billing audit process guide covers the structured audit that produces this baseline.

First 30 Days: Establish a Clean Baseline

1. Freeze assumptionsDo not accept the prior team’s AR total as accurate until you have confirmed it against independent sources. Request the aged trial balance from the practice management system, not a summary report. Reconcile the total against the general ledger. Any discrepancy between the AR system balance and the accounting balance signals either posting errors or unrecorded adjustments that will affect cash forecasting.
2. Secure accessConfirm that the practice has access to all payor portals, claim status systems, ERA files, and appeal submission portals for the prior billing period. Inherited AR that sits behind payor portal access the new team cannot reach is AR that cannot be worked. Securing portal credentials is a day-one task, not a week-three task.
3. Identify timely filing deadlinesRun an aging report segmented by payor and pull the timely filing deadline for each payor in the portfolio. Any claim in the portfolio within 30 days of its timely filing deadline is a priority account regardless of dollar value or prior follow-up history. These claims must be acted on before any other recovery work begins.
4. Establish the AR baselinePull an aged trial balance by payor group using the HFMA MAP Key AR-1 bucket structure: 0-30, 31-60, 61-90, 91-120, and over-120 days.¹ This is the baseline against which recovery progress will be measured. Do not begin collection work until this baseline is documented and reviewed by practice leadership.

The AR aging documentation from this baseline review becomes the first report to practice leadership. The revenue loss that drove the AR backlog is covered as context in the why is my practice losing revenue guide.

Days 31-60: Segment the Backlog by Recoverability

Once the baseline is established and timely filing emergency accounts are identified, segment the remaining backlog into four categories. The triage category determines the action, not the account age alone.

Category 1: Current and collectible

Claims within the timely filing window, with no prior documented follow-up or with a recent follow-up that received no response. These are standard accounts receivable requiring a follow-up workflow. Prioritize by dollar value within this category.

Category 2: Denied and appealable

Claims that were denied under the prior billing team but still within the appeal window. The denial date and the contracted appeal deadline determine whether an appeal is viable. If the appeal window is open and the denial is clinically or administratively correctable, file the appeal. If the appeal window has closed, the claim is no longer actionable regardless of merit.

Category 3: Aged and approaching the filing window

Claims that have not been denied but are approaching the timely filing deadline without a payment or denial response on record. These are the highest-priority accounts in the portfolio; they have a closing recovery window that is not triggered by a denial action date.

Category 4: Beyond recovery

Claims past the timely filing deadline with no documented exception (such as a payor-acknowledged delay), claims past the appeal deadline with no resolution, or patient balances past the practice’s documented collection threshold with no payment plan or financial assistance review. These accounts are candidates for write-off review under the practice’s write-off policy.

The write-off decisions that apply to Category 4 accounts are covered in the AR triage policy guide. The vendor transition implications, when the inherited AR came from a prior billing company, are covered in inherited AR during a vendor transition.

Days 61-90: Resolve, Appeal, Write-Off Review, and Report

By day 61, the triage is complete and the recovery work is underway. The 30-day window now is for resolving Category 1 and Category 2 accounts, submitting Category 3 appeals before deadlines close, and completing the write-off review on Category 4 accounts.

1. Category 1 and 2 follow-up

   Apply the standard claim-stage workflow. Every account has a documented next action, an owner, and a deadline. Accounts that receive a denial during follow-up move to appeal immediately, the appeal deadline starts from the denial date, not from the inherited follow-up date.

2. Category 3 appeals

   File every appeal within the window regardless of the billing resources required. A $300 claim that is still within its appeal window has more value than a $2,000 claim that closed last month. The dollar value does not change the finality of a closed window.

3. Category 4 write-off review

   Document each account, the reason for write-off, and the approval authority. Do not write off accounts in bulk without individual review, the write-off documentation is both a financial record and a root-cause signal. A pattern in the write-off reasons reveals what billing practice produced the backlog.

4. The 90-day recovery report should show

   Total inherited AR baseline at day one; amount recovered; amount written off with reason codes; amount remaining by category; and root-cause findings that inform the controls the practice needs going forward. This report is the deliverable to practice leadership at the end of the 90-day plan. The clean AR portfolio that emerges from this process is the starting point for the standard AR management workflow.

The Controls That Stop Inherited AR Becoming the New Normal

The 90-day cleanup plan produces a clean AR portfolio. It does not prevent the next one unless the root-cause findings drive workflow changes. AR recovery solutions that address current AR without fixing the underlying process produce the same inherited AR backlog for the next person who takes over.

Five controls that prevent AR from accumulating in the first place:

1. Claim submission within one business day of service documentation sign-off
2. Eligibility verification at scheduling rather than at check-in
3. Denial follow-up within five business days of the denial date
4. Payor escalation triggered at 60 days without adjudication response
5. Patient balance outreach within seven days of statement generation

Each of these reduces the AR aging rate before it creates a backlog.

The broader AR management framework that makes these controls operational is covered in accounts receivable in medical billing.

How to Clean Up Inherited AR

Inherited AR is a triage problem before it is a collection problem. The practices that recover the most from an inherited portfolio are the ones that classify accounts before acting, protect the timely filing deadlines before anything else, and use the write-off findings to drive the workflow changes that prevent the next backlog.

A3 Medical Billing provides AR recovery services and accounts receivable recovery support for practice acquisitions, billing transitions, and inherited AR situations, including a structured 30/60/90-day recovery plan with documented triage, follow-up, and write-off review.

As a revenue cycle management company for independent practices, A3 affords you the expertise to clean up what was inherited and build the controls that prevent it from recurring. Contact A3 for a free inherited AR assessment and find out what your current portfolio actually contains.

Frequently Asked Questions

What is AR recovery in medical billing?

AR recovery in medical billing is the structured process of identifying, working, and resolving outstanding unpaid claims and patient balances, particularly aged balances that have not been collected through the standard billing cycle. Accounts receivable recovery in an inherited portfolio context specifically means assessing the receivables left by a prior billing team or practice owner, classifying them by recoverability, and taking the appropriate action for each category before deadlines close the recovery window permanently.

What is an AR account?

An AR account is an individual record in a practice’s accounts receivable ledger representing a specific unpaid balance, either an insurance claim pending adjudication or a patient balance after insurance has processed. Each AR account tracks the amount owed, the responsible party, the age of the balance, and the follow-up history. Collectively, all open AR accounts make up the practice’s total accounts receivable.

How do you clean up old AR after taking over a practice?

The 30/60/90-day framework: first 30 days, freeze assumptions, secure portal access, identify timely filing deadlines, and establish a baseline aged trial balance. Days 31-60, triage the portfolio into four categories by recoverability, prioritizing by timely filing deadline rather than dollar value. Days 61-90, work Category 1 and 2 accounts using the standard claim-stage workflow, file all viable appeals before deadlines close, and complete the write-off review on Category 4 accounts with individual documentation.

Which inherited claims should be worked first?

Clean AR triage prioritizes by timely filing deadline, not by dollar value, account age, or denial complexity. Any claim within 30 days of its timely filing limit must be acted on before any other recovery work. The second priority is claims within the appeal window that have not yet been appealed. The third priority is claims that have never received a follow-up contact. Claims beyond both the timely filing limit and the appeal window, with no documented exception, are candidates for write-off review rather than recovery effort.