Operating margin and EBITDA: reading a hospital's true profitability

The hospital income statement, stripped down

Let's use a simplified but realistic 400-bed acute care hospital. Numbers below are illustrative and rounded for teaching, not from a specific named institution.

| Line item | Amount ($M) |

|---|---|

| Net patient service revenue | 380 |

| Other operating revenue (grants, cafeteria, parking) | 20 |

| Total operating revenue | 400 |

| Salaries, wages, benefits | 210 |

| Supplies (drugs, implants, devices) | 90 |

| Purchased services and utilities | 45 |

| Depreciation and amortization | 25 |

| Interest expense | 12 |

| Total operating expenses | 382 |

| Operating income | 18 |

A few definitions before we calculate.

Net patient service revenue: what the hospital actually expects to collect from patients and insurers, after subtracting contractual discounts. Hospitals bill a high "gross charge," then write most of it off. Medicare (the US federal program for people 65+) and Medicaid (state and federal coverage for low income patients) pay fixed rates far below gross charges. Net revenue is the honest number.

Depreciation and amortization (D&A): the annual accounting charge that spreads the cost of buildings and equipment over their useful life. A $50M MRI wing does not hit the books all at once; it depreciates over years.

EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition →: Earnings Before Interest, Taxes, Depreciation, and AmortizationEarnings Before Interest, Taxes, Depreciation, and AmortizationEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition →. It strips out financing and accounting choices to show cash-like operating performance.

Calculating operating margin

Operating margin tells you what percent of every revenue dollar survives after running the hospital.

Formula:

Worked calculation:

So this hospital keeps 4.5 cents of every operating dollar. For a US non-profit system, that is healthy.

Calculating EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition → and EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition → margin

EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition → adds back the non-cash and financing items. Start from operating income and add back D&A. (Interest and taxes are already excluded here because operating income sits above them, but for non-profits taxes are largely moot, and we treat the $12M interest as below the operating line for this example.)

EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition → margin:

Notice the gap: 4.5% operating margin but 10.75% EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition → margin. That 6-point spread is almost entirely depreciation. Hospitals are capital-heavy. Buildings, imaging suites, surgical robots, and IT systems generate large annual D&A. EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition → reveals the cash the hospital throws off before it pays for that capital.

Why lenders and bond markets love EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition →

Non-profit hospitals raise money through tax-exempt municipal bonds, debt whose interest is exempt from federal income tax, which lets hospitals borrow cheaply. Rating agencies (Moody's, S&P, Fitch) judge whether the hospital can service that debt.

They watch debt service coverage: EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition → divided by annual principal and interest payments. A hospital with thin operating margin but solid EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition → can still look creditworthy, because EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition → is the pool that repays bonds. This is exactly why you must read both numbers together.

Benchmarks: US versus Europe

Here is where the two systems diverge sharply.

United States: 3 to 4% is the target

US non-profit health systems typically aim for operating margins around 3 to 4%. This is a widely cited industry planning benchmark, not a regulatory rule. Why so specific?

• Non-profits pay no dividends, so surplus is the only source of reinvestment capital.
• That 3 to 4% funds new equipment, facility upgrades, and a cash cushion.
• Median performance is often thinner. Through the post-2020 cost surge, many US systems ran near breakeven or slightly negative operating margins before recovering. Kaufman Hall's monthly National Hospital Flash Report tracks these medians and is a good free running benchmark source (figures move monthly, so always check the current release date).

For context, EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition → margins in the low-to-mid teens are common targets for stronger US systems, though the range is wide and depends on service mix.

Europe: near zero by design

European public hospitals, the NHS trusts in England, public hospitals in France and Germany, often run operating margins at or near zero. This is not failure. It is the model.

• They are funded through government budgets, national insurance, or global tariffs (fixed prices per treatment, such as France's tarification a l'activite, meaning "activity-based pricing").
• The state, not retained surplus, funds most large capital projects.
• The mandate is to spend the allocated budget on care, not to accumulate profit.

So a French public hospital at 0.5% operating margin and a US non-profit at 4% can both be "on target." The number is meaningless without knowing who pays for the next MRI: retained surplus (US) or the state (Europe).

Reading the two numbers together

The real skill is interpreting the spread and the trend.

Scenario 1: high EBITDA, low operating margin. Our example hospital (10.75% vs 4.5%). Heavy depreciation from recent capital investment. Often a hospital mid-modernization. The cash engine is fine; accounting charges are dragging the operating line.

Scenario 2: low EBITDA, low operating margin. Danger. The hospital is not generating enough cash even before capital costs. Common cause: a rising labor cost ratio, salaries as a percent of revenue. In our example that ratio is 210 / 400 = 52.5%, which is typical; US hospital labor often runs roughly 50 to 60% of operating revenue. Above that band, margins compress fast.

Scenario 3: EBITDA positive, operating income negative. The hospital covers day-to-day operations in cash terms but cannot cover its depreciation. It is slowly consuming its physical plant. Sustainable short term, dangerous long term.

One caution on EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition →

EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition → ignores the real cost of replacing worn-out equipment. A hospital cannot run forever on EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition → while skipping capital reinvestment. Depreciation is a proxy for that future bill. Never let a strong EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition → number hide a hospital that is under-investing in its buildings and machines.

A quick sensitivity check

Suppose supply costs rise 5% due to drug and implant inflation. Supplies go from $90M to $94.5M, a $4.5M increase. Everything else held constant:

New operating income = 18 - 4.5 = 13.5
New operating margin = 13.5 / 400 = 3.375%

A single 5% supply shock drops operating margin from 4.5% to about 3.4%, pushing this hospital to the bottom of the US target range. This is why margin is fragile in a low-margin sector, and why cost control per case is a constant management focus.

EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition → moves too:

New EBITDA = 13.5 + 25 = 38.5
New EBITDA margin = 38.5 / 400 = 9.6%

Both metrics fell by the same $4.5M, but the percentages look very different because of the depreciation add-back. Always know which metric someone is quoting before you react to it.

Key Takeaways

• Operating margin = operating income / total operating revenue. Our example: 18 / 400 = 4.5%. It shows profitability after all operating costs including depreciation.
• EBITDA margin adds back D&A, revealing cash-like performance. Our example: 43 / 400 = 10.75%. The gap between the two is driven by capital intensity.
• US non-profit systems target roughly 3 to 4% operating margin (an industry planning benchmark, with medians often thinner and moving month to month). Check current Kaufman Hall data for live figures.
• European public hospitals often run near zero by design, because the state funds capital, not retained surplus. Zero margin there is not the same warning sign it would be in the US.
• Read both numbers together and watch the trend. A small cost shock can move operating margin a full point, and strong EBITDAEBITDAEBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortization) measures a company's operating profitability before financing and accounting decisions, used to compare core performance across firms.View full definition → can mask dangerous under-investment in physical plant.