Ask a senior CPA at a CAS practice to describe their week and you'll almost always find the same pattern: Monday through Wednesday managing the close for a handful of clients — reviewing reconciliations, clearing exceptions, updating the management report. Thursday and Friday for client meetings, business development, and the advisory conversations that are theoretically the purpose of the role.
The split varies. But the pattern — senior professionals spending 50–60% of their billable time on execution work that doesn't require their level of expertise — is nearly universal.
It's also the reason that most CAS practices struggle to scale, struggle to retain senior talent, and struggle to build the deep advisory relationships that generate genuine client loyalty.
The Misallocation Problem
Senior CPA time is the scarcest and most expensive resource in a CAS practice. The fully-loaded cost of a senior CPA — salary, benefits, overhead, partner share — typically runs $150,000–$250,000 per year. If 50–60% of that person's time is spent on work that a well-trained junior staff member or an automated process could handle, the practice is significantly over-investing in execution and under-investing in advisory.
The CPA.com & AICPA PCPS CAS Benchmark Survey found that the practices with the best economics are the ones that have most aggressively separated execution from advisory — using technology, automation, and in some cases outsourced delivery for the transactional work, freeing senior staff for client-facing advisory. Top performers in the survey were significantly more likely than average respondents to use workflow tools and technology to automate execution tasks.
Source: CPA.com & AICPA PCPS Client Advisory Services (CAS) Benchmark Survey 2022.
What Senior CPAs Should Actually Be Doing
In a well-structured CAS practice, the senior CPA's role is fundamentally different from what it looks like in most practices today. Specifically:
These activities create genuine value that clients are willing to pay premium prices for. They also create the deep, trusted advisor relationship that drives long-term retention and referrals. And they require the full attention and expertise of a senior professional — not the hours left over after the close is done.
Restructuring the Delivery Model
Getting senior CPAs into this role requires restructuring the delivery model: specifically, moving execution work off their plates and onto a different resource.
The three options available to most practices are: technology and automation (for the highest-volume, most repeatable tasks), upskilled junior staff (for the tasks that require accounting knowledge but not senior judgment), and outsourced execution partners (for the full FinOps and basic FP&A work that exceeds what internal junior staff can handle efficiently).
The practices that have made the most progress on this restructuring typically use all three — technology for automation, junior staff for review and quality control, and an execution partner for the delivery capacity they can't efficiently staff internally. The result is a senior team that is genuinely deployed in an advisory capacity — and a client base that notices and values the difference.
The Talent Retention Argument
There's a second argument for getting this right that goes beyond economics: talent retention. Senior CPAs who spend their time on advisory work — building client relationships, solving complex financial problems, acting as strategic partners — are doing the work they went into the profession to do. Senior CPAs who spend 60% of their time on reconciliations are not. The practices with the best senior talent retention are almost universally the ones that have successfully separated execution from advisory.
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CFOLogic works with CAS practices as an execution delivery partner — providing the FinOps and FP&A capacity that moves execution work off senior CPA plates and frees them for the advisory relationships that build the most durable practices. We'd welcome a conversation about what a partnership model would look like for your firm.