A private equity buyer just told you your firm is worth twice what it was three years ago. Then you open the term sheet and find a diagram that cuts your practice in half: one company keeps the audits and the CPA license, the other takes the tax practice, the advisory work, and the back office — and the buyer only writes a check for the second one. If you are a partner staring at that diagram for the first time, here is what it means, why every deal in the country is structured this way, and where sellers actually lose money.
Private equity discovered accounting later than it discovered dental offices and auto shops, but it is making up for lost time. Every US CPA-firm PE transaction from 2024 through 2026 has used the same structure, and none of the fundamentals behind it have changed. Understanding the split before you sign a letter of intent is the difference between negotiating from knowledge and discovering the mechanics at the closing table.
The One Rule That Forces the Split
You cannot sell a CPA firm's audit practice to non-CPAs. That is not a preference or a negotiating position — it is the law in every state, enforced by every state board of accountancy.
Attest services — audits, reviews, and compilations — can only be issued by a licensed CPA firm, and licensed firms must remain majority-owned by CPAs. No state has legalized non-CPA majority ownership of an attest firm, and the AICPA has not voted to change the majority-ownership rule. When the AICPA and NASBA jointly approved the 9th edition of the Uniform Accountancy Act in May 2025, it added a third licensure pathway (a bachelor's degree plus two years of experience) but left firm-ownership rules untouched.
So a PE fund that wants to buy your firm faces a hard constraint: it can own the business around the audits, but it cannot own the audits themselves. The industry's answer is the alternative practice structure, or APS — a form of organization the AICPA Code of Professional Conduct defines as an accounting firm that provides attest services closely aligned with another organization performing other professional services. The split is not creative deal-making. It is the only shape the law allows the deal to take.
How the Split Actually Works
In an APS transaction, your firm divides into two entities connected by contract:
The attest entity keeps the audit, review, and compilation practices, retains the CPA-firm license, and stays majority-owned by licensed CPAs — typically the continuing partners. This entity issues every attest report exactly as before, and it remains subject to peer review and the state board's jurisdiction.
The non-attest entity takes the tax practice, advisory and consulting, client accounting services, wealth management, and the firm's operating assets — the office, the technology stack, the brand. This is the company the PE sponsor actually buys, and it can be majority- or wholly-owned by non-CPAs.
The Administrative Services Agreement (ASA) connects the two. The non-attest entity provides back-office services — HR, IT, marketing, billing, facilities — to the attest entity at arm's length. Critically, the buyer is contractually barred from interfering with attest professional judgment: independence decisions, client acceptance, and engagement calls stay with the CPAs, behind a firewall the deal documents must respect.
In practice, that means every PE buyer is acquiring your non-attest book and your back-office assets. The attest practice continues under continuing CPA ownership, and your deal documents need to reflect that division line by line — which engagements, which staff, which receivables belong on which side.
What goes where
A rough map of the division in a typical generalist firm:
- Attest side: financial statement audits, reviews, compilations, employee benefit plan audits, SOC examinations, and any engagement requiring an attest report.
- Non-attest side: individual and business tax preparation and planning, SALT, R&D credit studies, cost segregation, bookkeeping and CAS, payroll, forensic and valuation work, and all administrative staff and systems.
- Shared under the ASA: office space, software licenses, marketing, HR, and finance — billed from the non-attest company to the attest firm at documented, arm's-length rates.
Why Buyers Prefer It This Way
The split is legally mandatory, but buyers have also learned to love it for commercial reasons.
First, the non-attest book is the scalable part of a CPA firm. Tax and advisory revenue recurs annually, grows without a proportional increase in partner hours, and responds well to technology investment and cross-selling — exactly the profile PE underwrites. Specialty tax practices (R&D credits, cost segregation, SALT) are especially prized because they combine high recurring revenue with service models that scale across a platform.
Second, valuing the non-attest business is cleaner. EBITDA add-backs are easier to justify for tax and advisory operations than for attest work, where partner labor is the product and utilization is already high. And the regulatory overhang — peer review findings, PCAOB inspection risk for firms with issuer clients — stays with the attest entity rather than clouding the acquired company's valuation.
Third, the structure preserves the license that makes the whole thing work. A PE platform that accidentally tainted attest independence would destroy the asset it paid for. The firewall is as much buyer protection as it is regulatory compliance.
The result shows up in pricing. M&A advisors report significant multiple expansion for firms over $5 million in revenue — a segment where multiples used to decline because individual buyers couldn't finance larger deals. One advisory firm describes consulting with a $5 million firm that might have sold for $3.5 to $4 million a few years ago, then selling a majority stake to a PE buyer for $7.5 million, with the seller staying on for a second payday at full exit. The headline number is real. The catch is in how it gets paid.
What the Headline Price Really Pays You
Almost no PE deal pays the enterprise value in cash at closing. Advisors who handle these transactions describe a now-standard anatomy:
- Cash at close: roughly 30 to 50 percent. This is the only guaranteed portion of your payout.
- Rollover equity: roughly 20 to 40 percent. You reinvest part of your proceeds into the buyer's platform, betting alongside the sponsor on a second liquidity event years later.
- Earnouts: roughly 10 to 30 percent, typically paid over about three years and tied to client retention and revenue targets.
Read that again from the seller's chair: half or more of "your" price depends on future performance — of a company you no longer control, through an integration you don't run. Earnout targets tied to post-deal synergies are aggressive by design, and integration hiccups that are nobody's fault can still vaporize a fifth of your valuation. Rollover documents frequently include clawback provisions if client retention dips below thresholds like 90 percent, effectively handcuffing you to perpetual performance. And if you receive rollover equity, expect a non-compete that runs through your ownership period plus one to two years after it ends.
None of this makes PE deals bad — the second-bite economics genuinely work for many sellers. But it means the letter of intent's structure matters more than its headline number. Demand a full payout breakdown in the LOI: cash, rollover terms, earnout metrics, clawback triggers, and who controls the decisions the earnout depends on. Sticker shock at closing, when the layered structure first appears in final documents, is one of the most common and most avoidable seller regrets.
The Independence Rules Are Still Moving
The APS model predates the PE wave, but regulators are actively rewriting the guidance around it — and the ASA you sign today may need revisiting tomorrow.
In December 2025, the AICPA's Professional Ethics Executive Committee (PEEC) voted to issue an exposure draft proposing independence-rule refinements specifically for APS and PE structures, including guidance distinguishing "significant influence" from "control" by investors over non-attest entities. The comment period ran through April 2026. Then, in August 2026, PEEC discussed revised changes to the Code's firm-independence guidance, a revised definition of "network firm," and a new interpretation prohibiting attest-client investment in firms — and agreed to continue discussions at an interim October meeting toward issuing a second exposure draft.
NASBA's Private Equity Task Force published its own white paper in early 2026, reinforcing that only CPA-owned entities can issue attest reports and that the attest/non-attest separation must remain real, not cosmetic.
For a selling partner, the practical takeaway is threefold. First, have attest-specialized counsel — not just M&A counsel — review the ASA and independence provisions. Second, build amendment mechanics into the ASA so the agreement can adapt if PEEC finalizes new interpretations. Third, keep the firewall genuine in daily operations: shared staff, shared email, and blurred decision-making are exactly what regulators will examine if the rules tighten.
Mistakes Sellers Make
Beyond the payout structure, advisors who sit on the sell side of these deals flag the same errors repeatedly:
Leading with price instead of fit. PE buyers negotiate for a living and move to deal terms fast. But sellers who first screen for the best outcome for clients, remaining partners, and staff — then negotiate economics — consistently report better exits, including on price. With a PE deal you may work inside the platform for years after closing, so the relationship you are entering matters more than in a clean break.
Underestimating due diligence. Expect third-party diligence that is heavier and more boilerplate-corporate than a CPA-firm buyer's review. Many requests won't quite fit an accounting practice, but answering them still consumes weeks of partner time. Start assembling quality-of-earnings materials, engagement-level profitability, and client-concentration analyses before the LOI, not after.
Skimming the operating agreement. When partners stay on, PE operating agreements run 50 pages or more and try to pre-decide every scenario over the continued-ownership period: capital calls, distributions, governance, deadlock, departure, repurchase. Expanded sell-side diligence on these documents is not optional — this agreement governs your working life and your second payday.
Ignoring the leadership plan. PE platforms aiming for $100 million-plus scale rarely install the existing managing partner as CEO; they hire enterprise operators. If influence post-close matters to you, negotiate advisory roles or board seats in the LOI rather than assuming your title survives.
Not vetting the capital stack. Leveraged roll-ups load the platform with interest obligations that compete with technology and talent investment. Ask how the platform is capitalized, what the debt service looks like, and what happens to reinvestment — and your rollover equity — if growth stalls for a year.
Run Two Sets of Books Before You Need To
Here is the move that pays off whether you sell to PE, merge with another firm, or never sell at all: start segmenting attest and non-attest revenue in your own books now.
A buyer diligence team will reconstruct that split anyway, engagement by engagement. If your chart of accounts already separates attest revenue, tax revenue, advisory revenue, and CAS — with direct costs allocated to each — you hand them a clean segment P&L instead of a forensic project. Clean segments shorten diligence, support higher non-attest multiples with evidence instead of estimates, and give you leverage when the ASA's arm's-length service charges get negotiated. The firms that command premium pricing are the firms whose numbers already tell the story the buyer wants to underwrite.
This is also where plain-text accounting earns its keep. In a version-controlled ledger, every allocation rule is visible text you can show a diligence team: which accounts roll into the attest segment, which into non-attest, and exactly how shared overhead gets split. No black-box adjustments, no "trust the export" — the segmentation logic is auditable line by line. If you track your practice in Beancount.io, the documentation walks through structuring a chart of accounts with this kind of segment reporting in mind, and the dashboard views make the resulting segment margins easy to review monthly rather than at deal time.
Keep Your Firm's Books Deal-Ready
Whether a PE platform, a strategic acquirer, or an internal succession is in your future, the firms that transact best are the firms whose books already answer a buyer's questions. Segment your attest and non-attest revenue, document your allocation rules, and review segment margins as a standing habit. Beancount.io provides plain-text accounting that gives you complete transparency and control over your financial data — no black boxes, no vendor lock-in. Get started for free and see why developers and finance professionals are switching to plain-text accounting.
