Succession Planning for CPA Firms: Preparing to Sell or Merge

7/28/2026

The firm most owners think they are selling and the firm a buyer is actually valuing are different firms.

Owners describe profitability, revenue, and years in business. Buyers price transferability — the likelihood that the revenue continues after the person who generated it stops being there. A highly profitable practice in which every significant relationship runs through one partner's personal credibility is worth less than a modestly profitable one where clients deal with a team, because the first one may not survive the transaction.

Which means the work of preparing to sell is mostly the work of making yourself less necessary, and it takes years.

Start Three Years Out

Not because the process takes three years, but because the things that change the price take that long to change.

Year three before: fix the client base. Cull or reprice the low-fee, high-maintenance clients — the same exercise our post on client retention recommends for margin reasons. A buyer discounts a client list padded with work nobody wants, and the seller is better off without it in any case.

Raise fees to market. Under-priced work is a double loss at sale: it lowers the revenue the price is calculated from, and it hands the buyer a fee increase problem that raises their attrition risk, which they price in.

Distribute the relationships. Introduce other people to your clients, systematically, so that by the time you sell the clients have a working relationship with someone who is staying. This single item probably moves the price more than any other, and it cannot be done in the last six months.

Year two: standardize. One tax software, one document system, one workflow, documented procedures. A buyer integrating a firm with idiosyncratic systems is buying a project, and they price the project.

Get engagement letters in place for every client. Buyers check, and a practice with informal arrangements has both a valuation problem and a liability problem.

Clean up the financials. Three years of accrual-consistent statements, with owner compensation and discretionary items clearly identified — because the buyer will build the adjusted earnings bridge described in our post on due diligence, and it goes better when the seller has already done it honestly.

Year one: assemble the data. Revenue and realization by client and by service line, three years. Client tenure. Staff roster with tenure, compensation, and credentials. Lease terms. Software contracts and their assignability.

Internal Succession Usually Fails, and the Reason Is Financing

Owners prefer to sell internally, and it is worth understanding why it so often does not happen.

The retiring partner needs a sum that reflects a career's worth of built value. The internal successors are employees who do not have that money and generally cannot borrow it against a service business with no hard assets. Which leaves the firm's own future cash flow as the funding source — meaning the successors buy the firm out of the profits they will generate while also paying themselves less than the market would pay them elsewhere.

That arithmetic works only when: the price is realistic rather than aspirational, the payment runs over a long enough period, the successors are genuinely capable of running the firm and want to, and the retiring partner actually withdraws rather than staying on and continuing to draw.

Where it fails, the failures are predictable: the price expectation exceeds what the cash flow supports; the successors were never developed into managers, only into technicians; the retiring partner cannot let go; or there simply is nobody. A firm that intends internal succession should test the arithmetic five years out, because the answer determines whether the successors need to be recruited or the firm needs to be sold.

How the Price Actually Gets Paid

The structural fact that changes how sellers behave, if they understand it in time.

Small and mid-market accounting practice sales are commonly priced as a multiple of revenue rather than of earnings, and — more importantly — a substantial part of the consideration is typically contingent on client retention over a defined period after closing. The seller receives the full price only if the clients stay.

Three consequences that follow directly:

Your post-closing conduct is part of the price. A seller who introduces the buyer properly, stays visible during the transition, calls the important clients personally, and is publicly enthusiastic gets paid. A seller who disappears the day after closing usually does not, and then blames the buyer.

How the retention measure is defined is a negotiation, not a formality. Measured on revenue or on client count; measured at what date; how a client who reduces their fee is treated; what happens to a client who leaves for reasons unrelated to the transaction, such as a business sale or a death; and whether the buyer's own conduct — a large fee increase, a service failure, reassigning the client to someone unsuitable — can reduce the seller's consideration. That last point is where sellers get hurt, and it should be addressed explicitly.

The transition period should be defined. What the seller will do, for how long, for what compensation, and what happens if the buyer wants more or less. "Available as needed" is not a term.

What drives the multiple itself: client and revenue mix, fee levels relative to market, realization, staff retention prospects, service concentration, geography, the seller's willingness to transition properly, and — again — transferability. Valuation and structure concepts overlap with the Certificate in S Corp Transactions material.

Staff Are the Capacity You Are Selling

A buyer is acquiring the ability to serve the clients, and that ability is the staff.

Key staff departures at announcement destroy value, and announcement is exactly when staff feel most at risk. Which means retention arrangements — stay bonuses, defined roles, compensation commitments — should be prepared before the announcement, not improvised afterward.

Sequencing matters: tell key staff before they hear it elsewhere, and be able to answer the question they will actually ask, which is not about the firm's strategy but about their own job, compensation, and who they will report to.

The Client Confidentiality Problem Nobody Plans For

The professional requirement most likely to be handled badly, because it arrives at the least convenient moment.

Due diligence requires disclosing client information to a prospective purchaser. But tax return information is subject to a statutory restriction on disclosure and use, with penalties, and the professional conduct rules impose confidentiality obligations independently.

Practical implications to work through with counsel before data goes anywhere:

What can be shared during diligence without consent — generally aggregated and de-identified information, but the boundary needs to be established rather than assumed.

What requires client consent, in what form, and when it must be obtained.

What the transfer itself requires, including how clients are notified and whether consent is needed for the transfer of their information and files.

Record retention and client access after the sale, which the professional standards address and which sellers routinely leave undocumented — the seller may still need access to support their own prior work.

The tax practitioner regulations, penalties, and security session and ethics training and professional conduct cover the standards; the point here is only that this is a workstream with a lead time, not a closing checklist item.

Tail Coverage Is the Most Forgotten Item

Short, specific, and expensive to miss.

Professional liability policies are generally written on a claims-made basis — they cover claims made during the policy period, not work performed during it. When a selling practitioner's policy ends, claims arising from work done years earlier but asserted afterward may be uncovered.

The remedy is an extended reporting period endorsement, commonly called tail coverage, purchased at the time the policy ends. It costs real money, it must be arranged rather than assumed, and the buyer's policy will generally not cover the seller's prior acts.

Two related points: the purchase agreement should state who bears responsibility for pre-closing work, and a retiring partner who never buys tail coverage has an uninsured personal exposure for the rest of the claim period. Confirm the specifics with an insurance professional; the failure mode is that nobody raises it until after the policy has lapsed.

The Tax Structure Is a Negotiation With Real Money in It

Because the allocation of the purchase price has opposite effects on the two parties, this is a bargained item and not an accounting formality.

The issues to raise early:

Asset versus equity sale, which drives everything else.

Allocation among goodwill, client relationships, fixed assets, a covenant not to compete, and any consulting or employment agreement — each with different treatment to the seller and different recovery to the buyer.

Personal goodwill, where the facts support it, which can materially change the seller's result and requires that the underlying facts actually exist rather than being asserted at closing.

Consulting agreements, which convert purchase price into ordinary compensation and should be sized for the work actually contemplated rather than used to move value.

Contingent payments, whose timing and character need to be understood before the structure is agreed.

State tax consequences, particularly for a multi-state practice or a seller who is relocating.

Get the tax structure into the discussion before the economics are agreed. A seller who negotiates a price and then discovers the structure's tax cost has negotiated the wrong number. Foundational estate and transition issues are covered in HS 330: Fundamentals of Estate Planning, and the buy-sell funding question connects to insurance analysis.

The Partner Agreement You Should Have Had

If there are multiple owners, the documents govern and they are usually inadequate. Confirm now, not at retirement:

How a retiring partner's interest is valued, with a method rather than a promise to agree.

Payment terms and duration, and whether the obligation is funded.

Mandatory retirement or transition provisions, if any.

Notice requirements for withdrawal.

Client and staff non-solicitation, and what happens to clients a departing partner brought in.

Death and disability, including whether funding exists.

What happens if the remaining partners cannot pay — the provision nobody writes and the one that produces litigation.

The Tax Business Marketing Manual and the practice resources cover the growth side; the agreement is the part that determines whether the value built is realizable.

Client Communication, Sequenced

Top clients personally, before anything general goes out. In person or by phone, from the seller, with the buyer introduced. A significant client who learns of the sale from a letter is a client at risk.

Then the general communication, jointly signed, framed around continuity and what stays the same.

Then availability. The seller answers questions for a defined period and does not vanish.

The frame that works: what is changing, what is not, and who to call. The frame that does not: an announcement about the firm's exciting new chapter, which tells the client nothing they asked.

Where Sellers Lose Value

Selling a firm where every relationship runs through the owner, which is the definition of low transferability
Under-priced work left unfixed, lowering the base and raising the buyer's attrition risk
A client list padded with low-fee, high-maintenance work
Testing internal succession too late to recruit or develop successors
A price expectation the firm's cash flow cannot fund
A retiring partner who will not actually withdraw
Not understanding that retention contingency makes post-closing behavior part of the price
A retention measure defined loosely, with no protection against the buyer's own conduct reducing the earnout
"Available as needed" instead of a defined transition
Key staff learning from rumor, with no retention arrangements prepared
Client information shared in diligence without resolving the consent question
No plan for record retention and seller access after closing
No tail coverage, leaving personal exposure for prior work
The tax structure discussed after the price is agreed
A partner agreement with no valuation method or funding
Major clients informed by letter rather than personally

The summary for an owner three years out: the buyer is pricing transferability, so spend the time introducing your clients to the people who are staying, raise the under-market fees, shed the work nobody wants, and put the systems on one platform. Then, when the deal comes, remember that most of the price is contingent on retention — which makes your conduct after closing part of the consideration — and settle tail coverage, the client consent question, and the tax structure before the economics are signed.

Frequently Asked Questions

What do buyers of accounting practices actually pay for?

Transferability — the likelihood that revenue continues after the seller leaves. A highly profitable firm in which every significant relationship depends on one partner's personal credibility is worth less than a modestly profitable one where clients work with a team, because the first may not survive the transaction.

Why does internal succession so often fail?

Financing. The retiring partner needs a career's worth of value, and the internal successors are employees who cannot borrow it against a service business with no hard assets — so the firm's own future cash flow becomes the funding source. That works only with a realistic price, a long enough payment period, successors developed as managers rather than technicians, and a retiring partner who actually withdraws.

How does the retention contingency affect the seller?

It makes the seller's post-closing conduct part of the price. Because much of the consideration typically depends on clients staying for a defined period, a seller who introduces the buyer properly and calls the important clients personally gets paid, and one who disappears at closing generally does not. The definition of the retention measure — including whether the buyer's own fee increases or service failures can reduce it — should be negotiated explicitly.

What confidentiality issue arises in due diligence?

Disclosing client information to a prospective purchaser runs into the statutory restriction on disclosure and use of tax return information, which carries penalties, plus independent professional confidentiality obligations. What can be shared without consent, what requires consent and in what form, and what the transfer itself requires all need to be resolved with counsel before any data moves.

What is tail coverage and why does it matter?

Professional liability policies are generally claims-made, covering claims asserted during the policy period rather than work performed then. When a selling practitioner's policy ends, an extended reporting period endorsement — tail coverage — is what covers claims arising later from earlier work. It must be purchased, it costs real money, and the buyer's policy will generally not cover the seller's prior acts.

When should the tax structure be discussed?

Before the economics are agreed. Asset versus equity sale, allocation among goodwill, non-compete, and consulting agreements, personal goodwill where the facts support it, and the character and timing of contingent payments all have opposite effects on buyer and seller. A seller who agrees a price and then learns the structure's tax cost has negotiated the wrong number.