How skilled-nursing occupancy is calculated (and why the number varies)

The formula

• Patient-days — Available bed-days

=

occupancy

A patient-day is one resident in one bed for one day. Available bed-days are the facility's beds multiplied by the days in the period.

Occupancy sounds simple: how full is the building. The formula is simple too. What the number leaves out is where the diligence sits.

The definition

Skilled-nursing occupancy is patient-days divided by available bed-days over the same period. A patient-day is one resident in one bed for one day. Available bed-days are the facility's beds multiplied by the days in the period.

Worked example

• Certified beds — 100
• Available bed-days — 36,500
• Patient-days recorded — 30,000
• Occupancy — 82%

A 100-bed facility has 36,500 available bed-days in a year; if it recorded 30,000 patient-days, it ran about 82% occupied. Illustrative arithmetic, not a dataset figure.

In the cost-report data, the median skilled-nursing facility runs 83.8% occupied. By state, that median ranges from about 62% to nearly 95%, so the national figure is a starting point, not a benchmark for any one building. For the state picture, see SNF occupancy by state.

Certified beds vs. staffed beds: why the number varies

The denominator is where reported occupancy gets slippery. Most published rates, including the cost-report figure, divide by certified beds, the total a facility is licensed and certified to operate. But a facility does not always staff every certified bed.

An operator that takes a wing offline, because it cannot staff the beds or does not have the census to fill them, still counts those beds as certified. Its reported occupancy drops even though the beds it actually runs may be nearly full.

Fully staffed building

• 80% — reported

Slack demand across every certified bed. The reported rate is the operating rate.

Wing offline

• 80% — reported

The open beds run at 95%. A closed wing still counts in the denominator and drags the average down.

Two facilities at 80% reported occupancy can be different businesses: one with slack demand across a fully staffed building, the other running its open beds at 95% while a closed wing drags the average down. The reported rate is the right benchmark for the market, but on a single building it can understate how tightly the beds in service are actually run.

Timing adds more noise. Cost reports cover a fiscal year and can include partial-year filings, new openings, or beds added mid-year, each of which moves the ratio. Self-reported figures are also revised as filings settle, so a single year is a snapshot, not a fixed fact.

How to compare fairly

Three adjustments make occupancy comparable across facilities.

• Match the denominator — If one facility reports on certified beds and another on staffed or available beds, the rates are not comparable until you reconcile them. On a specific target, ask for occupancy on available, staffed beds alongside the certified-bed figure.
• Read the trend, not the level — A building at 82% and climbing is a different asset from one at 82% and sliding. Reported occupancy across three or four years tells you more than any single filing.
• Compare within a market — State medians differ by more than 30 points, so a facility should be read against its own state and peer group, not the national line. A rate three points under the national median can lead its local market or trail it.

Occupancy is the operating figure that moves a skilled-nursing P&L the most, because the cost base is largely fixed and every empty bed comes off the margin. That is why it is worth calculating carefully rather than taking at face value. For what the sector earns on that occupancy, see what skilled-nursing facilities actually earn.

Sources and method

• Source — CMS HCRIS provider cost reports, FY2024 and FY2025 filings
• Analysis set — 12,232 facility-level filings with reported occupancy, after dropping consolidated chain filings and margin-plausibility outliers
• Definition — Patient-days divided by available bed-days; published rates, including this one, use certified beds in the denominator
• Worked example — The 100-bed calculation is illustrative arithmetic, not a dataset figure
• Known limits — Self-reported and revised as filings settle; a single year is a snapshot, not a fixed fact

Disclaimer

This article is a market-data benchmarking resource derived from publicly available Medicare cost reports. It does not provide, and must not be relied upon as, a fair market value determination, valuation opinion, appraisal, or legal, tax, or compliance advice. Cost-report figures are self-reported, unaudited, and subject to revision. The opinion of value for any specific arrangement remains the professional judgment of a qualified appraiser.