How much should an MSO management fee be?

Ask this question and you get a percentage. Somebody's lawyer saw 30% once. A broker says 15% is standard. A PE platform charges 8% because that is what the last platform charged. None of that is support, and in 2026 the question gets asked by people who can fine you.

An MSO management fee is typically supported as the cost of the services the MSO provides plus a fair market value markup. That is the structure regulators and healthcare counsel treat as the most defensible, and New York law effectively requires it. The percentage is the output. The method is two checks: what should the services cost, and what does a manager earn above cost.

Check one: what the services should cost

Start with what the MSO took off the practice's plate. Billing, clerical staff, rent, equipment, supplies, administration. All of it has a market cost, and CMS publishes the inputs. Benchmarked from public CMS data covering roughly 1.1 million clinicians, non-clinical cost as a share of practice net revenue looks like this by specialty:

The median specialty sits at 46.6% of net revenue. The spread is 4.6x, from emergency medicine at 16.6% to diagnostic radiology at 75.7%. Dermatology, the specialty with the most MSO deal flow, sits at 61.4%.

Specialty drives the number because specialties carry different amounts of practice on their own books. A dermatology office owns its rooms, staff, and equipment. An emergency physician works in a hospital that owns all three, so there is almost nothing for an MSO to manage. Which is the first sanity check on any fee: a fee sized for a specialty that carries 60% overhead makes no sense in one that carries 17%.

Check two: what a manager earns above cost

Cost alone is not a fee. No manager sells services at cost, and a fee with no margin fails its own commercial reasonableness test. The question is what margin the market pays for non-clinical services, and healthcare M&A answers it. Across 73 outsourced-services transactions in the Scope Research Healthcare M&A Valuation Database, spanning revenue cycle, staffing, consulting, and IT, the median EBITDA margin is 18.5%.

An 18.5% margin implies a 22.7% markup on cost. The conversion is markup = margin / (1 minus margin), and the markup calculator on the MSOs module does it for any margin you want to test.

Put the two checks together and the fee builds itself:

For a dermatology practice where the MSO provides the full non-clinical stack: services that should cost 61.4% of net revenue, plus a 22.7% markup on that cost, supports a fee near 75% of revenue. Scope scales it down. An MSO that only handles billing and clerical staff prices only those categories. The fee follows the MSA's service list, not the other way around.

Why cost plus is the structure that survives review

Percentage-of-revenue fees are the industry habit and the regulatory target. New York treats them as fee splitting, which is professional misconduct, not a paperwork problem. The flat or cost-based fee is the structure that survives there. California's SB 351 and AB 1415 took effect January 1, 2026, and between them codify what an MSO may not control and let OHCA demand financial disclosures, fee structures included. Oregon's SB 951 is stricter still. The direction of every new statute is the same: show us the money between the PC and the MSO.

A percentage fee that rises because collections rose looks like sharing professional revenue. A cost-plus fee looks like buying services at market. That distinction, structure by structure and state by state, is where MSAs now get won or lost. The full method is worth reading before your MSA gets repriced, whether by you, a buyer's quality of earnings team, or a regulator.

What moves the number

Four things, in order of force:

Specialty. The 4.6x spread above. This is the biggest lever and the least appreciated one.

Site of service. The same specialty costs different amounts in an office than in a facility, because the facility absorbs overhead the practice would otherwise carry. Emergency medicine at 16.6% is the extreme case of a blended figure dominated by facility practice.

Geography. CMS prices practice expense across 109 localities. The index spans 0.852 in Mississippi to 1.435 in San Jose, a 1.7x gap on the same basket of costs.

Scope. The cost benchmark breaks into categories: clinical labor, clerical labor, office overhead, equipment, supplies. Price the categories the MSO delivers.

The free tier of the MSOs module shows each specialty's overall median, including dermatology and cardiology. The full distributions, three sites of service, and locality cuts sit behind the subscription.

Using a benchmark responsibly

This data supports a fee analysis. It is not the analysis. An FMV opinion weighs the actual MSA, the actual services, and the actual costs, and it comes from a qualified appraiser. What a benchmark does is tell you, before you pay for that opinion, whether the fee you are contemplating is in the neighborhood or in another zip code. It also tells a practice evaluating an MSO deal whether the fee being offered leaves the practice anything to live on.

Common questions

How much should an MSO management fee be? The cost of the services the MSO provides plus a fair market value markup. Median non-clinical cost spans 16.6% to 75.7% of practice net revenue depending on specialty, and comparable managers earn a median 22.7% markup on cost.

Is a percentage-of-revenue management fee legal? It depends on the state. New York treats percentage fees as fee splitting. Most states allow them but scrutiny is rising, and cost-based structures are safer everywhere.

What is a fair markup for an MSO? The median EBITDA margin across 73 healthcare outsourced-services M&A comparables is 18.5%, an implied markup on cost of 22.7%. Individual service lines vary.

What does an MSO management fee cover? Whatever the management services agreement says it covers, which is the point. Billing, clerical staff, facilities, equipment, supplies, and administration are typical. The fee should map to the listed services and their cost.

Sources and method

Cost benchmarks are built from public CMS data covering roughly 1.1 million clinicians, expressed as median non-clinical cost as a percentage of practice net revenue, by specialty, across three sites of service and 109 Medicare localities. Markup benchmarks are implied by EBITDA margins of 73 healthcare outsourced-services M&A transactions (2012 to 2026) in the Scope Research Healthcare M&A Valuation Database. Figures cited here are the free-tier medians. Full methodology on the MSOs module.

This article is a market-data benchmarking resource. 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. The opinion of value for any specific arrangement remains the professional judgment of a qualified appraiser.