Fractional CFO firm vs independent CFO for your clinic
TL;DR: An independent fractional CFO is one experienced person, usually a lower rate and a close, direct relationship, but a single point of failure: when they are out, overloaded, or move on, your finance function stalls. A firm puts the engagement on an organization rather than one individual, so coverage and institutional knowledge survive any one person leaving, and the books and the CFO work can sit under one roof. Solo fits a smaller, single-location practice that wants one relationship at a lower cost; a firm fits a clinic that needs continuity, deeper coverage, and healthcare specialization. Below: cost, coverage, scope, and where each fits.
Option A
Independent fractional CFO
One experienced finance person you engage directly. Often a lower monthly rate and a single, consistent point of contact who knows your practice personally. The trade-off is capacity: one person has a ceiling on hours, no built-in backup when they are sick or stretched, and usually no bookkeeping team behind them.
Option B
Fractional CFO firm
A firm you engage rather than an individual, so the relationship sits with the organization. A firm can cover more hours, carry institutional knowledge through staff changes, and often provides accounting and CFO work under one roof. The trade-off is a higher rate and, at some firms, less direct access to one senior person.
| Category | Independent fractional CFO | Fractional CFO firm |
|---|---|---|
| Who you are hiring | One individual. You get their judgment directly, and the engagement lives or dies with them. | An organization. The firm owns the relationship, so no single person's exit ends it. |
| Typical cost | Usually lower, because you are paying one person's time with little overhead. Rates vary widely by the individual's background and are set case by case. | Higher. You pay for coverage, backup, and process. Sorso's fractional CFO starts at $4,000/mo. |
| Coverage when they are out | The main risk. If your solo CFO is sick, on vacation, or overloaded by another client, your work waits. | A firm can reassign or add hands, so a month-end close or a financing deadline does not depend on one person's calendar. |
| Key-person risk | High. If they take a full-time job or wind down, you are starting a search and a handoff from scratch. | Low. Knowledge of your practice is documented inside the firm and survives staff changes. |
| Bookkeeping and close | Usually not included. Most solo CFOs work on top of your existing bookkeeper or CPA and expect clean books to start from. | Often available under one roof. A firm that does both accounting and CFO work can run the close and build on it without a handoff between vendors. |
| Healthcare specialization | Depends entirely on the person. A generalist solo CFO may be strong on finance but new to payer mix, denials, and reimbursement. | Depends on the firm. A healthcare-only firm brings clinic-specific benchmarks and playbooks; a generalist firm does not. |
| Access to the senior person | Direct. You usually deal with the same person on everything, which many owners prefer. | Varies. Better firms keep a named senior CFO on your account; some route you through junior staff, so ask who actually does the work. |
| Best for | A smaller, single-location practice that values one close relationship, a lower rate, and can tolerate occasional coverage gaps. | A clinic that needs reliable coverage, continuity through growth, healthcare specialization, or accounting and CFO work from one vendor. |
Solo for a close relationship at a lower cost; a firm for continuity and coverage.
Be honest about which risk you can live with. An independent fractional CFO gives you one experienced person, a lower rate, and a direct relationship, and for a smaller single-location practice with clean books that is often the right call. The cost is concentration: when that person is out, overloaded, or moves on, your finance function stalls and you restart the search. A firm spreads the engagement across an organization, so coverage and institutional knowledge survive any one person's exit, and a firm that does both accounting and CFO work can run your close and plan from it without a handoff between vendors. Sorso is a firm built only for outpatient clinics, with fractional CFO starting at $4,000/mo and healthcare accounting at $2,000/mo. Whichever you choose, check two things: who specifically does the work, and whether they already know clinic finance or are learning it on your account.
Frequently Asked Questions
Is an independent fractional CFO cheaper than a firm?+
Usually, yes. A solo CFO carries little overhead and sets rates case by case, so the monthly fee is often lower than a firm's. What you are not paying for is backup. With one person there is no one to cover a close if they are out and no bench if the work outgrows their hours. The fee gap is real; weigh it against how much a stalled month would cost you.
What happens if my solo fractional CFO quits or takes a full-time job?+
You start over. You run a new search, and whatever they knew about your practice that was not written down leaves with them. This is the single biggest argument for a firm: the relationship sits with the organization, so a staff change is a handoff inside the firm rather than a gap for you. If you do hire solo, protect yourself by insisting the work and the reasoning behind it are documented, not kept in one person's head.
Does a fractional CFO firm also do the bookkeeping?+
Some do, some do not. A firm that offers both accounting and CFO work can run your monthly close and build the forecasting and planning on top of it, which removes the handoff between a separate bookkeeper and a separate CFO. At Sorso the two are sold separately or together: healthcare accounting starts at $2,000/mo and fractional CFO at $4,000/mo, so you can run the books with us, add the CFO layer, or both. A solo CFO almost always expects you to supply clean books from elsewhere.
How do I know the firm won't just hand me off to junior staff?+
Ask directly, before you sign. Find out who will actually be on your account, how senior they are, and who does the hands-on analysis versus the review. A good firm will name the person and explain the structure. The honest version of a firm's advantage is coverage and continuity, not a senior partner doing every task, so the question to settle is whether the senior person is driving the strategy or only signing off on it.
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Founder of Sorso and a CFA charterholder. Before Sorso, Stan spent 19 years in corporate finance at institutions including UniCredit and Société Générale — managing a $450M loan portfolio and making senior partner at a major mezzanine lender by 29 — then built a fractional CFO firm exclusively for outpatient healthcare clinics.