- Tax season gets the headlines. Audit and review season is the second capacity ceiling that wears teams down quietly.
- AICPA MAP data shows combined voluntary CPA turnover roughly doubled between 2021 and 2024 — 28% of departing staff are now leaving the profession entirely.[1]
- AI doesn’t touch the judgmental work. It eats the 35–50% of audit hours spent on PBC chase, reconciliation, and workpaper formatting.
Tax season gets the attention because tax season breaks things. Capacity, morale, and client patience all hit a wall in March. But most mid-size Springfield CPA firms have a second capacity ceiling that nobody writes case studies about: audit and review season.
If your firm does assurance work — financial statement audits, reviews, compilations — you already know. The PBC list goes out in January, half of it comes back wrong in March, the other half comes back in April, and your senior staff spend May and June reconstructing information that should have been clean the first time.
The Talent Crunch Behind Both Peaks
The AICPA's 2025 Management of an Accounting Practice (MAP) Survey — the largest benchmarking study of public accounting firms, with over 1,000 firms reporting — tells a stark story. Among firms reporting voluntary turnover, 30% had a team member move to another firm and 28% had a team member leave the profession entirely. Both numbers are up sharply from 19% and 20% respectively in the 2021 survey.[1]
The pipeline behind that turnover isn't exactly catching up either: the U.S. awarded just 55,152 accounting degrees in 2023–24, down 6.6% year over year, with master's degrees specifically down 15%.[2] There's a small bright spot — enrollment ticked up 12% in 2024–25 — but it will be three to four years before that flows into staff capacity. In the meantime, every busy season is fought with the team you have, not the team the firm wishes it had.
Combined voluntary turnover at U.S. CPA firms
From the AICPA's 2021 vs. 2025 MAP Survey results
Where the Hours Actually Go
Walk an audit manager through a recent engagement and the time distribution is predictable: 30–50% on collecting and reconciling PBC items, 10–15% on rollforward schedules, another 10–15% on workpaper formatting and tickmark population, and the remaining 20–50% on actual judgmental work — analytics, sampling, memo drafting. The ratio is worse on smaller engagements, where fixed setup costs eat a bigger share of the budget.
AI doesn't touch the judgmental work. It absolutely does touch the first 65% that's eating your staff's time.
Three Leverage Points
1. PBC Collection & Validation
AI handles the back-and-forth on the PBC list: it chases missing items with client-friendly reminders, flags items that were returned in the wrong format, and does a first-pass validation against prior-year balances so your senior doesn't have to discover a $40,000 discrepancy at 11 PM. The client sees one unified portal instead of a chain of individual emails.
Hours recovered per engagement: typically 8–15 on a mid-size review, more on full audits.
2. Rollforward & Workpaper Population
Rollforwards are the poster child for “work a computer should do.” AI pulls opening balances from last year's workpapers, current-period activity from the trial balance, and populates the rollforward schedule with tickmarks mapped to the right source documents. Your senior reviews rather than builds.
Hours recovered: 4–8 per area per engagement, concentrated in the staff and senior ranks where billable-rate pressure is highest.
3. Workpaper Review Assistance
AI flags the things a reviewer is going to flag anyway: missing signoffs, un-ticked items, analytics outside tolerance, and memos missing required references. The reviewer spends their time on substance instead of on formatting issues. For a partner reviewing three engagements in parallel, that's the difference between a 2 AM night and an 8 PM finish.
Three Audit-AI Deployment Phases — Side by Side
You don't have to do everything at once. Most firms phase audit AI in over two busy seasons. The trade-offs:
| Phase 1: PBC chase only | Phase 2: + Rollforward / workpaper auto-pop | Phase 3: + Review assistance | |
|---|---|---|---|
| Setup effort | Low (Quick Win) | Medium (Practice Accelerator) | Medium — needs Phase 2 first |
| Hours saved per mid-size review | ~8–15 | ~12–25 (cumulative) | ~20–35 (cumulative) |
| Who feels it most | Staff & clients | Seniors | Managers & partners |
| Risk level | Very low (no audit judgment) | Low (always reviewed) | Low (assists, doesn't replace) |
| Best timing to start | Q4 before busy season | Off-season after Phase 1 | Year 2 with one full cycle of clean workpapers |
The Compounding Benefit
Every hour saved on data gathering is an hour that can go to either more engagements (revenue) or earlier delivery (retention) or earlier sleep (the AICPA turnover number). Most firms blend the three. A 12-person assurance team that recovers 8–10% of its audit hours can take on one more mid-size engagement in the season without adding headcount.
That's independent of the tax-season automations we cover in AI for Springfield CPA Firms. Audit season wins stack on top. Law firms face a structurally identical realization-rate problem — for the parallel mechanics in legal billing, see law firm billing automation.
A Local Note: Springfield’s Accounting Heritage
Springfield punches well above its weight in accounting. BKD spent decades headquartered here before merging with DHG in 2022 and joining the Forvis Mazars global network in 2024 — one of the top 10 professional services firms in the world built from a Springfield base.[3] Missouri State University's accounting program continues to feed the regional pipeline; the school recently received a major donation specifically aimed at strengthening that program.[4]
That heritage cuts both ways. The Springfield-area mid-size and small firms competing for talent against Forvis's campus presence don't have national-firm budgets for tooling. AI is one of the few levers that lets a 10–30 person assurance team operate with the same per-engagement efficiency as a top-10 firm — without the hiring war chest.
How to Scope This
A Practice Accelerator for audit season automation runs 4–6 weeks and is best timed to land 60–90 days before your busy season. Phase 1 maps your workpaper software (Caseware, ProSystem fx Engagement, ProWorkPapers) and your PBC workflow. Phase 2 pilots on one active engagement with a senior shadowing the AI. Phase 3 rolls out firm-wide with training.
The firms that see the biggest lift are the ones who start before they're drowning, not during. Booking a conversation in October for the following busy season is the normal cadence.
Frequently Asked Questions
It doesn't. AI assists with the 35–50% of audit hours that are data gathering, reconciliation, and formatting — not analytical procedures, materiality judgments, or fraud risk assessment. Those stay with the licensed audit team. We deliberately scope AI to the work where the right answer is verifiable from source documents, not the work where professional judgment is required.
Trust takes one cycle to build, two cycles to solidify. Most partners we've worked with start by spot-checking AI flags — comparing what AI surfaced to what they would have flagged manually — for the first engagement or two. After that, the pattern is consistent: AI catches the things partners always catch (missing tickmarks, unsupported variance), plus a few they wouldn't have. The result is partners spending review time on substance, not formatting.
AI-assisted workpapers are still subject to the same auditing standards and peer review process. The key is documentation: every AI-generated tickmark, rollforward, or analytic should have a clear audit trail showing what the AI did and what the human reviewed. We design the workflow so that audit trail is automatic. Peer reviewers we've talked to actually prefer it — it's easier to inspect than handwritten tickmarks.
Yes for all three. The integration approach varies — Caseware has the deepest API access, ProSystem fx Engagement uses a combination of API and structured exports, and ProWorkPapers we typically integrate via document automation. The capability is the same; the engineering effort during setup differs by platform. We map your specific environment in week one of any engagement.
For audit-focused firms, the sweet spot is Q4 — October through December — for an engagement landing 60–90 days before your busy season. That gives you time to pilot on one engagement before the wave hits. Starting duringbusy season is technically possible but rarely advisable; the team doesn't have bandwidth to learn new tools while already underwater. Plan ahead, not in crisis.
- AICPA & CIMA, “2025 National Management of an Accounting Practice (MAP) Survey.” Voluntary turnover at U.S. CPA firms: 30% of firms reporting team members leaving to another firm; 28% reporting members leaving the profession entirely — both up significantly from 2021. aicpa-cima.com/professional-insights/article/national-map-survey
- Journal of Accountancy, “The accounting graduate pipeline: Where do things stand?” October 2025. U.S. accounting degrees awarded 2023–24: 55,152 (down 6.6% YoY); master's programs down ~15%. journalofaccountancy.com/news/2025/oct/the-accounting-graduate-pipeline
- KY3, “Springfield-based accounting firm BKD announces merger with national firm DHG.” February 20, 2022. ky3.com/2022/02/20/springfield-bkd-dhg-merger
- KY3, “Missouri State University’s accounting school receives significant donation.” February 9, 2026. ky3.com/2026/02/09/missouri-state-accounting-school-donation
Planning Next Busy Season?
Book a free 30-minute call. We'll map your current audit workflow and show you where AI delivers hours back — without touching the judgmental work.