Practice Deals Are Accelerating, and So Is the Risk of Getting One Wrong
Accounting firm M&A set a record in 2025, with 194 transactions announced or completed, a 26% increase year over year. That pace has not slowed. According to Capstone Partners’ latest accounting services M&A update, deal volume in 2026 has already climbed 14.8% year over year, and private equity continues to drive a growing share of that activity.
More deals moving faster means more owners treating a sale like a single event: sign the papers, hand over the client list, walk away. That approach almost always underperforms. A tax practice’s value lives in the relationship between the client and the firm, not in a spreadsheet of names and fees. When that relationship changes hands overnight, clients notice, and some of them leave. When it changes hands in stages, the value has time to transfer along with it.
This is the difference between a transaction and a transition. The rest of this guide breaks down what that looks like from both sides of the table.
Why Staggered Exits Protect Value for Everyone
Firm owners already understand this instinct when it comes to pricing. When a firm updates its fee structure, the advice is never to convert every client to a new price on the same day. It is to start with your top clients, get them onto the right engagement, then repeat the process with the next five. The goal is the same revenue with less volume and less risk, achieved gradually instead of all at once.
An exit works the same way. A staggered sale might look like:
- An earnout tied to retention, where part of the purchase price is paid over time based on which clients actually stay.
- A consulting or emeritus period, where the seller stays involved part-time, keeps collecting a check, and gives clients a familiar face during the handoff.
- A phased client transfer, where a subset of clients moves to the new owner first, with lessons from that group applied before the rest transition.
None of these require the seller to keep running the practice day to day. They require the seller to stay attached long enough for clients to build trust in whoever, or whatever process, comes next.
The underlying principle: clients need to feel connected to a process, not just to the person who has served them for years. Firms that have already documented their engagement terms, standardized their pricing, and built a repeatable service delivery process transfer that value cleanly. Firms where everything lived in the owner’s head transfer much less, because the value was never separated from the person.
What Sellers Should Prepare Before Starting the Conversation
Firm owners nearing an exit are usually asking:
- How do I know if my client roster represents real, transferable revenue, or just my personal relationships?
- How do I find a buyer I can trust, one who will not gut the client experience I built?
- How do I maximize my payout if I cannot get paid entirely upfront?
Before listing a practice, sellers should have answers to the following:
Are clients attached to a documented process (standard onboarding, consistent pricing, a defined service tier), or are they attached to you personally? The more the former, the higher the practice is worth and the easier it is to transfer.
A buyer cannot model future revenue from inconsistent, undocumented fees. Standardized engagement letters and a clear pricing history make diligence faster and the practice more credible.
Are you open to an earnout, a consulting period, or a phased handoff of clients in groups? Knowing your own flexibility before negotiating gives you more leverage, not less.
Clients who are introduced to a transition gradually, and by someone they already trust, are far more likely to stay than clients who find out after the fact.
For a full walkthrough of what to gather and document before those conversations start, the this checklist covers each of these in more depth.
What Buyers Should Verify Before Making an Offer
On the other side of the table, buyers are usually asking:
- Is this firm's revenue actually stable, or propped up by a handful of clients who might leave the moment ownership changes?
- What happens to retention once the original owner steps back?
- Am I paying for a client list, or for a relationship I have no way to inherit?
Before making an offer, buyers should look closely at:
If a small number of clients make up a large share of revenue, that revenue is fragile. Ask for a breakdown by client, not just a total.
A firm with documented workflows, standardized pricing, and signed engagement letters on file will retain clients through a transition far better than a firm running on the owner’s memory and personal rapport.
A seller who is open to a consulting period or a phased handoff is signaling confidence in the deal and giving the buyer a much safer path to retention. A seller who wants to disappear the day after closing is a signal worth taking seriously.
Earnouts and retention-based payouts are not just protection for the buyer. They are the mechanism that keeps both sides focused on making the value exchange actually work.
This checklist breaks down exactly what to verify in each of these areas before an offer goes out.
The Mistake Both Sides Keep Making
The most common failure point in a practice sale is treating it like a single event instead of a process. A few patterns show up repeatedly:
- Sellers pricing based on tenure, not transferability. Thirty years in the profession does not automatically translate into a higher multiple. Buyers pay for revenue that will still be there in twelve months.
- Buyers skipping the retention conversation entirely. A total revenue number looks good on paper. It means far less without a plan for how that revenue survives the ownership change.
- Neither side planning the handoff in stages. A single announcement, a single letter, a single new point of contact on day one. Clients who feel the change happen all at once are the clients most likely to leave.
- Assuming a fast close is a good close. Speed protects the transaction. It rarely protects the value exchange. The deals that hold up over time are the ones built with enough runway for clients to adjust.
Protect the Relationship, Not Just the Deal
A tax practice sale is not won or lost at the closing table. It is won or lost in the months before and after, in whether clients feel like something was handed off carefully or dropped on them all at once. Firm owners who treat an exit as a process, and buyers who treat an acquisition as a relationship they are inheriting, come out ahead of everyone racing to close the fastest deal. Structure the transition in stages, document the process instead of relying on memory, and the value exchange takes care of itself.
