I’ve been fixated on the issue of small CPA firm profitability for a few months now—ever since I took the time to really dig into the latest Management of an Accounting Practice (MAP) Survey published by the American Institute of Certified Public Accountants (AICPA).
Reflecting this fixation, this week I’m blogging on the topic and covering a couple of angles.
First, and invoking the fair use doctrine in copyright law, I want to review the MAP survey, pointing out a problem I see in the results.
Second, I want to talk about small CPA firm profitability in general and then also about profitability in other small business categories.
Small CPA Firm Profitability Data: My Review
Every few years, the AICPA’s Private Company Practice Section—a group of small CPA firms within the AICPA—surveys its members. The AICPA and the Texas Society of CPAs later publish the survey results as the MAP survey and this publication provides tons of interesting statistical information about the characteristics of small CPA firms: their financial performance, how they staff, what technologies they use, and so forth.
The survey reports, for example, the revenues and profits of single owner firms at the 25th, 50th and 75% percentiles as shown in the table below:
Percentile | Revenues | Profits |
---|---|---|
25% | $196,643 | $76,571 |
50% | $371,432 | $149,477 |
75% | $671,880 | $271,129 |
Lots of people—including government agencies like the Internal Revenue Service and CPA firm owners—use this data to benchmark. And on the face of it, that usage seems reasonable. Except for one rather awkward possibility.
See that first line of the table? The one that describes the 25th percentile firm as generating slightly less than $200,000 in revenue and as making about $77,000 in profits?
In the AICPA survey, 25% of survey participants generate revenue of less than roughly $200,000.
But US Census Bureau statistics suggest roughly 70% of CPA firms generate less than $200,000 revenue.
You have to back into this conclusion by looking at employee counts for firms in the smallest MAP survey category and the smallest Census Bureau category, by the way. (Here’s a link to a blog post I did last week about how to do this: Benchmarking Small Business Revenues and Profits .)
You see the problem, right? What the MAP survey describes as the bottom 25% of the industry probably amounts to more like 70% of the industry. And then of course if the survey misstates the 25th percentile, those values shown for the 50th and for the 75th percentiles are wrong, too.
A quick stipulation: I am not saying this situation reflects some mistake made by the AICPA. Absolutely not. They run a survey of members and low participation by the smallest firms isn’t something they can control.
However, what you realize after you think about this for a minute is this: Users need to recognize and adjust for the undersampling.
When you adjust, you get a far different picture of what small firm profitability looks like.
The table that follows gives my best guess of what small CPA firm profitability actually looks like.
Percentile | Revenues | Profits |
---|---|---|
50% | $160,000 est | $64,000 to $80,000 |
68% | $196,643 | $76,571 |
81% | $371,432 | $149,477 |
93% | $671,880 | $271,129 |
The table above, by the way, says the chunk of firms that the MAP survey presents as 25% of the industry actually represent approximately 68% of the industry since that’s what the Census Bureau data suggest. (This is the second line of data.)
Further, that 75th percentile of the MAP survey works out to represent something more like the 92nd or 93rd percentile using the same simple math. (The top 25% of the MAP survey’s top 30% of the industry equals roughly the top 7.5%, or rounded about the 93rd percentile.)
And then what the MAP survey describes as the 50th percentile actually, to me, looks to be the mid-point between that 68th percentile and the 93rd percentile, or roughly the 81st percentile.
For the record, my math here is all a little roughshod. Please consider my calculation results very approximate.
But even so, I feel pretty confident you want to adjust the MAP survey for inadvertent under-sampling. That adjustment results in more accurate descriptions of the profitability of a single owner CPA firm. That adjustment also results a more accurate description of the range of outcomes that small firms experience.
And that’s enough backstory and review of a problem in the MAP survey data. Let’s talk about why all this stuff even matters both to small CPA firm owners… and then, really, to other small business owners too.
I spot three interesting ideas baked into this situation.

Average Owner Earns a Job-like Salary
A first point, which sort of surprises me but which also makes total sense once I mull things over a bit: The combination of AICPA and Census Bureau data suggests that the average single owner CPA firm generates no true entrepreneurial profit.
If I start poking around at the financial characteristics of those firms with revenues less than that $200,000-ish threshold, for example, it looks to me as if the median single owner CPA firm generates maybe $160,000 in revenue and maybe $65,000 to $80,000 in profits. (This is the first line of data.) These values mesh with what the Census Bureau shows, with what the MAP survey says about single owner firms with less than $200,000 in revenue and with other secondary data sources.
In short, the typical single owner CPA firm produces a bottom-line net income roughly equal to the salary and fringe benefits enjoyed by an experienced senior accountant. And then remember of course that half of the single-owner firms are actually making less than whatever that median value equals.
You want to think about this possibility if you run a single owner CPA firm or are thinking of doing so. You probably also want to know this reality if you work with a single owner CPA firm.
And then this tangential thought—which is really a guess on my part. I doubt that small CPA firms are unique regarding their profitability. Surely in many small business categories, the median profit roughly resembles the salary and benefits an equivalent job pays.
Wide Variability Suggests Some Big Winners
Here’s a second interesting thing that shows up in data.
While on average, single owner CPA firms don’t earn an entrepreneurial profit, if you look at the 81st percentile or 93rd percentile of the combined Census Bureau and AICPA MAP data, the numbers look great.
An 81st percentile firm makes roughly double my estimated profits of the median performing CPA firm.
A 93rd percentile single owner CPA firm earns close to double what the 81st percentile firm earns.
If you’re a single owner CPA firm, mull over that wide variability in revenues and profits.
Many single owner CPA firms do really well. Roughly 20% of single owner CPA firms—maybe 10,000 small firms—have figured out how to make a six figure salary.

Note: If you are a member of the AICPA’s Private Company Practice Section, you just have to dig into the details of those top 5% or 10% single owner CPA firms because in those top tiers, wide variability also exists. And many of those top performing single owner CPA firms are doing really well. (By the way, if you run a CPA firm and are not a member of the Private Company Practice Section, oh my gosh, you need to join… Membership in the PCPS costs $35 for a single CPA firm, which represents an unbelievable bargain.)
Can I also use this wide variability in small CPA firm profitability to make a guess about small business profitability in general? Surely this same wide variability shows up in other industries. In other words, small CPA firms cannot possibly be the only small business category where the average person earns an okay living, but top performers put big profit numbers on the scoreboard.
The Terrible Irony in All This
Let me share a third and final comment…
Ironically, the route a single owner CPA firm takes to move from average financial performance into the aristocracy of the top financial performers is not a secret.
Within the profession, numerous resources exist that tell single owner CPA firms what they need to do and how they need to operate in order to enjoy better profitability.
In fact, I’ve already mentioned the first obvious resource any single owner CPA firm wants—which is access to the MAP survey and its detailed bench marking tools.
The weird part about the MAP survey being a bad estimate of what a typical single owner CPA firm looks like is that it is an excellent description of what a top performing single owner CPA firm looks like.
And lots of other good resources exist, too. For single owner CPA firms wrestling with small CPA firm profitability, for example, I’d recommend reading anything written by Edward Mendlowitz (especially his Practice Doctor blog), by Marc Rosenberg (but especially the Rosenberg Survey) and Ron Baker (especially his book The Firm of the Future).
And one last thought: I am quite sure that in other small business categories, similar resources exist for helping a small business owner take the steps required to create a more profitable small business.
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De-localize Your Small Business
You are correct about the income level of being on your own versus being an employee in a CPA for a variety of reasons. However you did not touch upon the intangible benefits of being self employed. When you control your own business, you control your own destiny. You can’t put a price tag on that.
Samantha, you make an excellent point. And one I totally agree with. Further, I’m sorry I didn’t include the point in the original blog post.
I appreciate the compliment and thank Steve for it. I found his article interesting and while it deals with net income, I do not feel it sets forth the true benefits of being in your own practice.
I do not accept as valid the low “average” income. I speak to hundreds of solo and two or three partner firm owners every year so have some grasp of the situation. Excluding those that started within the previous three years, every one of them is comfortable financially from their practice. Of course they would all like to make more, and many of the reasons I am called is because of pricing, billing or collecting issues. However, very few ever complain about what they take home. Some of them actually do extremely well and are on the top rung of income.
Profits and net income is illusory. Almost all of these solo practitioners run large amounts of expenses through their businesses – [multiple] cars, health and disability insurance, travel to conferences, meals, entertainment and sporting tickets and sponsorships for their children’s teams, all sorts of home owner costs, children on the books, charity ads, and if they have hobbies many of those costs. If they are incorporated then the employer’s portion of their payroll taxes, pension plan payments including for a solo 401k, and health insurance all reduce the net income.
There are two broad types of small practitioners – those that want to stay that way and those that want to build a firm. The ones that want to stay solo seem to make more than the builders for the three of four years it takes to get traction and have a firm.
Bundled with having a practice are peculiar work habits some have, the freedom to take off when they want, the being part of and camaraderie from an informal local group of similar practitioners where they can exchange information and practice problems and tips, prestige in their community, and the creation of equity where most practices are saleable while a paycheck (and equity) disappear when a job ends.
There is a current trend among larger firms to share information of their earnings in an attempt to retain key staff. The idea being is that if they knew what can be made, no one would ever quit their firm if there was a chance of a partnership. Earnings are important, but only part of being in one of the greatest professions and businesses. Just ask anyone over their mid-50s how they like public accounting – most simply love it!
Like Steve I wholly recommend Ron Baker’s and Marc Rosenberg’s books. There are others but these are basic to anyone in public practice or who wants to be. Joining the AICPA PCPS is also a must.
Earnings are a complicate topic and the article brings up an issue I haven’t thought much about. Now, it will be something I will ponder, perhaps for a future article somewhere.
Thanks Steve for the article.
Ed
Ed, thank you for your thoughtful comments. I have great respect both for your wisdom and your industy experience.
Let me also comment on your comments.
First, I totally agree that profits aren’t everything and that firm ownership delivers big, nonfinancial benefits. Samantha McGrath makes this important point,too. (Thanks Samantha!)
Second, you make an excellent point that the accounting for profits of one owner firms may be optimized for saving taxes and pyschic income rather than bottomline results.
Third, I absolutely believe you about the characteristics of your large personal sample of single owner firms.
Fourth, where we maybe disagree is that I think the census bureau data, once you mash that data up with other sources like the MAP survey, suggest large numbers of small single owner firms produce the sorts of numbers I shared.
Which is why I’ll say this again: The advice and wisdom that you and Rosenberg and Baker share is so important for single owner firms to absorb. Ditto for the work that Mark Koziel and his team at the PCPS do.
Hey Steve
Great article as you cover a lot about CPA firm that I was unaware of thanks for sharing.
The article is excellent. What the analysis and comments show is the variety of business models that small firms use. The models vary on the owners’ objectives, temperaments, and personal situations. That, to a large degree, is why public accounting is attractive as a profession. Let’s face it, the big firms’ cultures may vary, but their objective is all the same, to maximize partner income.
I just received AT Top 100 firms issue. I look at the numbers and check out revenue per partner, per professional, and per employee to see how my solo practice sizes up.
At the end of the day what matters is, are you happy?
Good points, Bill. Thank you for sharing.
I agree with Samantha (and Ed) in that I am a small firm and the highest grossing year I’ve ever had was last year at 75k, net around 50. I have 2 part time seasonal employees. I make enough to do what I want, and now that I don’t have a mortgage (age 56), my goal is to save a lot and slowly retire. I do own rentals so I have other sources of income. What I value is the time off I take: multiple vacations, conferences, and just time to putter around the house. Off season, I work very few hours a week. And that, my friend, is worth more than gold to me.
Hi Joan, You make great points… and ones I agree with. Just to make this stipulation, I don’t think there’s anything wrong with saying a solid income paired with a great work-life balance is a good deal.
But again, I do think that the MAP under-samples single-owner CPA firms… that that under-sampling unintentionally hides the great variability in single-owner performance… and that rich, rich resources exist for single-owner firms that want to move from average to above average.
P.S. Oh, and Joan? I have often appreciated your comments and insights in other online communities.
Thank you for your insight Steve. I looked at the MAP several years ago and found that it no longer represents the new CPA – Client Accounting Service firms.
Many CAS firms no longer have billing rates, partner’s book of business, realization rates, time sheets/WIP; but instead have adopted a corporate structure and a catalog of services sold on a subscription basis that is uniquely priced to fit the client requirements. CAS CPA firms manage off an entirely different set of key performance indicators than those provided in the annual MAP.
Maybe the AICPA could include a survey of CAS CPA firms and their operating results.
Thanks Hank. Agree with you that adopting our business models to the new economy is essential.
Great article. I am happy you provided the differences between the MAP and the Labor stats. I think I understand your principle regarding a owners profit above a salary you could make on a job. IE: the average salary of a Sr. Accountant. I am a member of the AICPA section for firms, and I will look at the books you have suggested. This has been the most helpful articles I have read on improving my CPA practice. Please feel free to email me if you can.