What the Medicaid Cost Report Actually Does
Most SNF operators understand that they file a Medicaid cost report annually. Fewer understand that this document is the single most consequential financial filing their facility produces. In cost-based reimbursement states (and even in states with modified prospective systems), the cost report is the foundation of your per diem rate. Every dollar of allowable cost you fail to capture is a dollar of reimbursement you forfeit, not for one patient, but for every Medicaid patient day across the entire rate period.
The mechanics vary by state, but the general framework is consistent. Your cost report aggregates all facility operating costs, allocates them across cost centers using a step-down methodology, and then divides by patient days to produce a per diem cost. The state Medicaid agency applies its rate-setting formula (which may include inflation factors, peer group ceilings, efficiency adjustments, or case mix indices) to arrive at your reimbursement rate. If your reported costs are understated, your rate is understated. It is that simple.
Allowable vs. Non-Allowable Costs
The distinction between allowable and non-allowable costs is where most of the money gets left behind. CMS guidelines under PRM-15 define allowable costs broadly: they include all costs that are necessary for the provision of patient care, reasonable in amount, and related to the care of patients. The list is longer than most operators realize.
Allowable costs include nursing salaries and benefits, dietary department costs, housekeeping and laundry, plant operations and maintenance, administrative salaries (including a portion of ownership compensation), employee health insurance, workers compensation, property taxes, insurance premiums, depreciation on building and equipment, interest expense on facility-related debt, professional fees related to operations, and IT systems used in care delivery or billing.
Non-allowable costs include return on equity (for proprietary facilities under current rules), entertainment expenses, political contributions, fines and penalties, costs related to non-patient care activities, and certain related-party transactions that exceed fair market value.
The gray area between these categories is enormous, and it is where most facilities lose money. A conservative accountant will err toward excluding costs. A strategically minded advisor will document the patient-care nexus for every borderline cost and include it with proper support.
The Five Most Common Allocation Errors
1. Understating Administrative and General (A&G) Costs
A&G is the catch-all cost center that includes management salaries, accounting, human resources, legal, IT, and general office operations. Many facilities understate this category because they fail to allocate a reasonable portion of ownership or management company compensation. If the owner or a related management entity provides operational oversight, strategic direction, or compliance management, a portion of that compensation is allocable. The key is documentation: time studies, job descriptions, and functional analyses that demonstrate the patient-care nexus.
2. Missing Step-Down Allocations from Support Departments
The step-down allocation methodology requires that costs from support departments (laundry, housekeeping, dietary, plant operations, A&G) be allocated to revenue-producing departments (routine nursing, ancillary services) based on statistical bases such as square footage, pounds of laundry, meals served, or hours of service. When a facility fails to capture accurate statistics, or when the preparer uses a simplified allocation that does not reflect actual utilization, costs get stranded in support departments rather than flowing through to the per diem calculation.
For example, if your plant operations department spends significant resources maintaining the nursing wings but the allocation basis underweights those areas relative to administrative space, you are diluting the nursing cost center and reducing your Medicaid-eligible costs.
3. Improperly Excluding Facility and Occupancy Costs
Rent, depreciation, interest, and property taxes are major cost components, but they are frequently understated. Related-party leases must be at fair market value, but 'fair market value' in the SNF context includes the specialized nature of the facility. A facility that was purpose-built as a skilled nursing home has different FMV characteristics than general commercial space. Many operators use below-market lease rates for related-party transactions because they have never obtained a proper rental valuation. This directly reduces their cost report and their rate.
Similarly, capital improvements that should be depreciated over their useful life sometimes get missed entirely, either because they were not capitalized on the books or because the depreciation schedule was set up incorrectly.
4. Failing to Capture Therapy and Ancillary Cost Centers
Even in facilities that contract out therapy services (PT, OT, Speech), the costs of space, utilities, and equipment dedicated to therapy should be allocated to therapy cost centers. When therapy is provided by an outside contractor, the contract amount is reported, but the facility's own costs to support therapy delivery often get lost. These include the square footage of the therapy gym, the equipment, the utilities for that space, and any staff time dedicated to therapy scheduling or transportation.
5. Ignoring the Case Mix Index (CMI) Impact
In states that use a case mix adjusted rate methodology, your CMI directly multiplies your base rate. A facility with a CMI of 1.05 versus 1.15 is leaving roughly 10% of its rate on the table. While CMI is driven by clinical documentation and MDS coding rather than the cost report itself, the two are deeply interconnected. Higher acuity patients require more resources, and those resources should show up in your cost report. When your CMI and your reported costs are misaligned (high acuity patients but low reported costs), it signals either poor documentation or poor cost reporting, and either way, you lose.
Strategic Preparation Within Regulatory Guidelines
Let us be clear: strategic cost report preparation does not mean inflating costs or fabricating expenses. It means capturing every legitimate, allowable cost with proper documentation and allocating those costs using methodologies that accurately reflect the facility's operational reality.
Time studies are one of the most powerful tools available. When an employee splits time between patient-care and non-patient-care activities, a properly conducted time study (typically over a two-week representative period) provides the documentation needed to allocate their compensation appropriately. Without a time study, the default is often 0% allocation to patient care, which is almost never accurate.
Compensation analysis for owners and related parties should be benchmarked against industry salary surveys (AHCA, BLS, state-specific data) to establish that the amounts reported are reasonable and necessary. Many operators underpay themselves relative to market, which ironically hurts their cost report.
Depreciation schedules should be reviewed annually to ensure that all capital additions are captured, useful lives are appropriate (not overly conservative), and that any impairments or retirements are properly reflected.
Related-party transaction documentation is critical. Every transaction with a related entity, whether for management fees, rent, supplies, or services, must be supported by a written agreement, fair market value analysis, and evidence of arm's-length negotiation. States routinely reduce or eliminate related-party costs that lack this documentation.
The Dollar Impact: Real Examples
Consider a 120-bed SNF operating at 88% occupancy, which translates to approximately 38,544 Medicaid patient days annually (assuming a 70% Medicaid census). If strategic cost report preparation identifies $300,000 in additional allowable costs that were previously excluded or misallocated, the per diem impact is approximately $7.78. Over a full rate year, that translates to roughly $300,000 in additional Medicaid revenue. And because many states use a trailing cost report to set prospective rates, this improvement carries forward until the next rebasing.
We have seen facilities recover anywhere from $100,000 to $400,000 annually through this process, depending on the size of the facility, the Medicaid census, and how conservatively the prior reports were prepared. The investment in proper cost report preparation, which typically runs $15,000 to $30,000 for a single facility, produces a return of 5x to 20x.
For multi-facility operators, the impact scales. A five-facility portfolio with aggregate annual Medicaid revenue of $25 million that improves its cost reporting by even 3% is looking at $750,000 in annual rate improvement.
Timeline and Process
The cost report preparation process should begin well before the filing deadline. Here is the timeline we recommend:
Months 1-2 after fiscal year end: Conduct time studies, update compensation analyses, review depreciation schedules, and compile all related-party documentation. Ensure the general ledger trial balance is finalized and reconciled.
Months 3-4: Prepare the draft cost report, including all allocation statistics and step-down calculations. Run a preliminary rate analysis to identify areas where costs may be understated relative to the facility's actual operations.
Month 5: Review the draft with the operator. Discuss any items that require additional documentation or analysis. Make adjustments as needed.
Month 6: File the completed cost report with the state Medicaid agency. Retain all workpapers and supporting documentation for the desk review and potential audit.
Ongoing: Monitor the rate impact when the new rate is published. If the state applies adjustments or reductions during the desk review, prepare a response with supporting documentation. Many rate reductions can be reversed through a well-documented appeal.
The Bottom Line
Your Medicaid cost report is not a tax return. It is not a compliance obligation to be minimized or rushed through. It is the primary mechanism through which your facility communicates its cost of care to the rate-setting authority. Every dollar of allowable cost you fail to report is a dollar of revenue you forfeit, multiplied by every Medicaid patient day, compounded over the rate period.
If your cost report is being prepared by the same firm that does your tax return, and if that firm does not have deep expertise in SNF reimbursement and PRM-15, you should get a second opinion. The most expensive cost report is the one that leaves money behind.