Walk into most skilled nursing or senior living finance departments and you will find the same reserve methodology: a percentage applied to aging buckets, set years ago, rolled forward every close. Meanwhile the payer mix underneath it has shifted. Medicare Advantage has displaced traditional Medicare, Medicaid managed care has replaced fee-for-service in most states, private-pay rates have climbed while lengths of stay have shortened, and Medicaid-pending balances have grown as eligibility processing times stretch.

The reserve did not move with any of it. And in this industry, that matters more than almost anywhere else, because no other sector runs a receivables portfolio where a single resident's balance can flow through four payers in one stay: Medicare Part A, a Medicare Advantage plan, Medicaid, and the resident's own patient liability. Each carries different collection probability, different timing, and different reasons for nonpayment. A blended reserve rate across that mix is not a simplification. It is wrong for every dollar in the portfolio at the same time.

The result, in nearly every AR diligence exercise done in this sector, whether for a sale, a refinancing, or a REIT landlord's asset review, is the same finding: net AR on the balance sheet exceeds what the business will actually collect, usually by a material margin. Here is why, and what a defensible methodology looks like.

A note on scope before diving in. The full payer stack described here, from Medicare and managed care through Medicaid pending, is the skilled nursing picture, and SNF finance leaders will recognize their entire aging report in what follows. Predominantly private-pay senior living communities, in assisted living, independent living, and memory care, run a simpler version of the same problem: their receivables concentrate in the private pay, patient liability, and estate pools, and the sections covering those balances, along with the pooling framework, roll-rate mechanics, and the gross-AR-to-cash bridge, apply to them in full. Communities with Medicaid waiver residents, long-term care insurance billing, or VA benefits sit between the two and should read the third-party payer sections accordingly.

Contractual allowances are not bad debt, and the confusion flatters both numbers

The foundational discipline, and the one most often broken, is the separation required by ASC 606, the revenue recognition standard (Revenue from Contracts with Customers): amounts you were never entitled to collect are not receivables, and their write-off is not bad debt.

When a Medicare Advantage plan pays a skilled claim at its contracted rate rather than billed charges, the difference is a contractual allowance: a reduction of revenue that should have been estimated and booked at the time of service, not discovered at cash posting. When a Medicaid rate is retroactively adjusted, when a managed care plan downgrades a level-of-care authorization, when a claim is denied for a technical documentation defect you will not win on appeal, these may represent implicit price concessions or other variable consideration under the revenue standard when the provider expects to accept less than the stated amount. The accounting depends on the specific facts and circumstances, but in each case these amounts belong in the measurement of net revenue and must be distinguished from credit losses.

Bad debt, as a credit loss within the scope of ASC 326, generally relates to amounts that represent valid receivables but are not expected to be collected because of the payer’s credit risk or inability or unwillingness to pay — and that is narrower than most long term and senior care ledgers treat it. Examples include a private-pay resident whose family stops paying, a patient-liability amount assessed to a Medicaid resident that the resident never remits, or an estate that closes without sufficient assets to satisfy the outstanding balance.

Why insist on the distinction? Because blending them corrupts both numbers. If denial write-offs and rate adjustments are flowing through bad debt expense, your net revenue is overstated all year and trued up in lumps, your revenue-per-patient-day metrics are unreliable, and your bad debt expense looks catastrophic relative to the actual creditworthiness of your residents. That in turn makes your historical loss data useless for building a proper reserve. Most operators who decompose their write-offs for the first time find that, in Richter’s experience, roughly 40–60% of "bad debt" was never collectible revenue at all. That is not a reserve problem; it is a net revenue recognition problem wearing a reserve costume.

Aging buckets lie differently for every payer

The standard aging matrix assumes age predicts loss. Across the long term and senior care payer mix, age means something different in every column of the payer report, and a single set of bucket percentages misprices all of them.

Traditional Medicare at 90 days is usually a billing problem, not a credit problem: a claim stuck in ADR review, a sequential-billing error, a missed certification. Collection probability remains high; the reserve cost is small but the carry cost is real.

Medicare Advantage and Medicaid managed care are where aging and loss genuinely interact, but through denials rather than insolvency. A managed care balance at 120 days is very likely a denied or underpaid claim in some stage of appeal, and its value depends on your historical overturn rate for that plan and that denial type. That number is what your reserve should be built on and what your managed care contracting team should be armed with. Plans differ enormously in medical policies, filing deadlines, and appeals processes; reserving them identically because they share an aging bucket ignores the most predictive variable you have.

Medicaid fee-for-service, once eligibility is established, is slow but near-certain. The risk is not the approved balance; it is everything upstream of approval.

Medicaid pending is the single most misvalued line on most long term and senior care balance sheets. Operators book pending balances at the Medicaid rate and reserve them lightly, on the theory that most applications are approved. But the right question is not the approval rate; it is the conversion rate of pending dollars to cash, which is degraded by denials, by retroactive eligibility dates that don't reach back to admission, by penalty periods from asset transfers, and by applications that die when the resident does and no one pursues the paperwork. A facility's own two-year history of pending-to-paid conversion, by referral source and by application age, is the strongest basis for this reserve; where that history is thin or unreliable — a new facility, a management change, or a state that has just rewritten its eligibility rules — state or industry benchmarks, longer rolling lookback windows, and documented forward-looking regulatory adjustments are defensible supplements. And a pending balance that has aged past six months without eligibility is worth a fraction of its face amount, whatever the aging bucket says.

Private pay and patient liability behave like consumer credit, because that is what they are. This is also the pool that spans the entire continuum: for a predominantly private-pay assisted living, independent living, or memory care community, this section and the roll-rate methodology behind it describe essentially the whole AR portfolio. The predictive variables are behavioral: a resident or responsible party who breaks a payment pattern, a balance that survives discharge or death, a share-of-cost amount the family disputes because they dispute the Medicaid determination itself. Post-discharge and estate balances collect at rates that would shock anyone reserving them at "the over-120 percentage": recovery runs through probate and consumer-collection frameworks rather than ordinary delinquency timelines, and ultimate realization typically stabilizes at roughly 5–15% of face value. The operational corollary is that patient liability must be collected in month one, in the month it is owed, because it does not improve with age.

The methodological conclusion is consistent with what ASC 326 contemplates: pool the portfolio by payer class (at minimum Medicare, Medicare Advantage, Medicaid, Medicaid pending, managed care Medicaid, private pay in-house, private pay discharged/estate, and hospice and VA if material) and develop loss rates for each pool. Under ASC 326, financial assets with similar risk characteristics are required to be evaluated collectively, and payer class may be an appropriate risk characteristic in this industry when it is a meaningful driver of collectability and historical credit losses.

Building the rates: conversion curves, overturn rates, and roll rates

Within each pool, the techniques are simple and the data requirements are specific.

For managed care pools, the loss rate is essentially (denial rate) × (1 − overturn rate) plus underpayment leakage, measured per plan from your own claims history. This requires denial and appeal outcomes coded by reason and payer in your billing system. If your write-off codes are a single "contractual" bucket, that coding fix is the highest-ROI project in this article.

For Medicaid pending, build a conversion curve: of the pending dollars originated each month, what percentage converted to paid Medicaid within 3, 6, 9, 12 months, and what percentage died. Reserve each vintage of pending AR according to where it sits on that curve. This also gives you the operational metric that actually moves the number, application cycle time by referral source, because the reserve and the admissions policy are the same conversation.

For private pay and patient liability, classic roll-rate analysis works: measure the month-over-month probability that a dollar in each bucket migrates to the next rather than being collected, chain the probabilities to write-off, and do it separately for in-house residents versus discharged and deceased accounts. The two populations have almost nothing in common. In-house balances also carry their own regulatory constraint: you will be limited, legally and reputationally, in how hard you can pursue a current resident, which is precisely why the reserve on in-house private balances should reflect collection reality rather than collection theory.

Layer on top of the historical rates the forward-looking adjustments ASC 326 contemplates — based on current conditions and reasonable, supportable forecasts, and documented with direction and magnitude: a state Medicaid budget standoff stretching payment timing, a major MA plan tightening authorization behavior mid-year, an eligibility office whose processing backlog just doubled. These are qualitative overlays, not econometric models, but they need to exist on paper, because auditors will look for the reserve to move in the same direction as your own leading indicators. A reserve rate that falls while your denial rate and pending aging rise is a finding waiting to be written.

The haircuts the reserve never captures

Even a well-built credit reserve leaves gaps between book value and economic value, and in long term and senior care three of them are chronic.

Timing is a real cost on your safest paper. Medicaid and appealed managed care balances may collect at 95%+, but at 90–180 days. GAAP does not require discounting short-term trade receivables due within one year, so the financing cost of carrying that float never touches the balance sheet. At today’s cost of capital, though, it is roughly a 2–4% economic haircut — the exact figure depends on your funding rate and how long the balance rides — on the payer classes you worry about least, and it belongs in any per-payer profitability analysis and any decision about AR financing. A "no-loss" Medicaid payer class can be your most expensive payer to serve once carry cost is charged back to it.

Unbilled and pended revenue carries all the same risk plus some. Days of service awaiting a Medicaid eligibility determination, claims held for authorization, therapy days pending documentation: these balances sit outside the AR account and frequently outside the reserve calculation, yet contract assets and unbilled receivables can fall within CECL’s scope when they represent a right to consideration for services already transferred. Not every unbilled or pended balance automatically qualifies, but if your reserve methodology starts at "billed AR," it starts too late.

Recoupment risk runs the other direction. In no other industry can a payer reach back and take money you already collected. Medicare and Medicaid audit recoupments, MA plan retroactive disenrollments, and hospice cap liabilities are not AR reserves — probable and estimable recoupments may need to be recognized as liabilities or as reductions of revenue or receivables under the applicable guidance — but they are the same conversation about what your working capital position is actually worth. A balance sheet that reserves receivables while ignoring probable recoupments has only done half the valuation.

What good looks like

A methodology that survives both an audit and a buyer's diligence looks like this: AR pooled by payer class, with loss rates built from your own conversion curves, denial-and-overturn history, and roll rates on at least twenty-four months of claim-level data; contractual allowances and denial concessions stripped out of bad debt and booked against revenue where they belong; Medicaid pending reserved on vintage conversion, not optimism; discharged and estate balances reserved at their true single-digit-to-low-double-digit realization; forward-looking overlays documented; unbilled service days in scope; and the whole thing reconciling to a one-page bridge from gross AR to expected cash that the CFO can defend line by line. For a private-pay senior living community, the same methodology simply collapses to fewer pools, in-house, discharged, and estate, with no loss of discipline. In a sale process or a REIT landlord review, someone across the table will build exactly that bridge whether you have or not.

Then use it for more than the close. The same payer-level realization and timing data that produces the reserve is the operating dashboard for the revenue cycle: which plan's denials are worth a contract renegotiation, which hospital's referrals convert to paid Medicaid and which don't, whether patient liability is being collected in the month it is owed, what the fully loaded economics of each payer class actually are at your current mix.

The balance sheet says one number. Your pending conversion curves, your denial overturn rates, your estate collection history, and your cost of carry say another. The gap is not an accounting technicality. It is unrecognized loss and unpriced float sitting in the largest asset your facilities own, and it is the first thing a sophisticated counterparty will find. Better that you find it first.

Enhancing Outcomes Starts with an Honest Balance Sheet

Find it before they do. Our financial consulting team performs AR valuation reviews for skilled nursing and senior living operators — the same payer-level bridge from gross AR to expected cash that a buyer, lender, or landlord will build in diligence. Request an AR valuation review.

Richter partners exclusively with long-term post-acute care providers to deliver tailored, high-impact solutions across clinical, financial and operational domains. Our team brings real world industry expertise to help leadership teams improve compliance, strengthen financial performance, optimize revenue cycle management, streamline EHR and PointClickCare systems and manage Medicaid eligibility with confidence. Acting as a trusted extension of your organization, we provide personalized guidance, expert-led enablement and end-to-end support that reduces complexity while driving measurable growth. With a focus on sustainable outcomes that strengthen clinical quality, financial stability and operational efficiency, while reducing risk and advancing resident care excellence, Richter empowers skilled nursing communities, senior living providers, home health and hospice organizations to achieve long-term success in today’s complex healthcare landscape.