Around four in five privately held businesses that list for sale don't complete the transaction. It's an uncomfortable number, and the temptation is to blame the market — a buyer that wasn't there, a valuation that never quite met the ask, a deal that stalled at diligence. Those things happen. But the pattern underneath is more consistent, and less to do with the market than most owners assume.
The number, and where it comes from
The Exit Planning Institute has tracked completion rates on private business sales for years, and the headline figure — that only roughly 20% to 30% of businesses put on the market actually sell — is remarkably durable across cycles. It's worse for smaller businesses (below about $2m EBITDA the success rate falls to somewhere around 10%) and improves as businesses get larger — a well-prepared mid-market business can transact at rates closer to 70% or 80%. But even at the top end, that means one in five doesn't get done.
Different people cut the number differently. Brokers who count only businesses that stayed on the market until they either sold or the mandate expired will quote higher success rates than researchers who count every business that ever tried to sell. The number moves around depending on how you measure it, but the picture doesn't: most businesses that go to market don't complete, and the cause is rarely the market.
What actually determines whether a deal completes
The evidence points in one direction. Businesses that fail to sell tend to share the same handful of characteristics — and they're all characteristics of the business, not the market it went into.
Earnings quality. A buyer isn't paying for the profit you reported last year. They're paying for the profit they believe will still be there after they've owned the business for two years. If your reported profit is loaded with owner add-backs, one-off gains, or revenue that only stayed because of a relationship the owner personally holds, the buyer's number will be lower than yours — sometimes materially lower. This is where most deals actually break.
Owner-dependence. If the business can't run without you being in it every day, a buyer is buying a job, not an asset. The valuation reflects that. The single biggest lever most owners have — usually the one they've thought least about — is engineering the business so it works without them. That takes 18 to 36 months to do properly. It doesn't happen in the month before a sale process starts.
Customer concentration. One customer accounting for 30%+ of revenue is a discount. Two customers accounting for 60% is a bigger one. A buyer isn't paying full price for a revenue base they think could evaporate on a single lost relationship.
Shareholder alignment. In multi-owner businesses, the deal that dies most often is the one where the shareholders never agreed among themselves what "a good outcome" looks like. One wants to cash out and retire; another wants to stay in and grow; a third wants to sell but only above a number they've fixed in their head from a competitor's rumoured deal three years ago. A buyer walks into that room, senses the disagreement, and walks out. The internal work has to happen first.
A story a buyer can believe. Not marketing. A coherent, evidence-backed explanation of why this business, in this market, will continue to generate the cash flows the price implies. If the story is thin, the buyer supplies their own — and their version is always more conservative than yours.
The window that matters
Almost all of the value uplift that a well-run exit produces gets built in the 18 to 36 months before a business goes to market. Every one of the levers above takes time. Owner-independence, in particular, is a two-year project on a good day — you can't fake it in a diligence room.
This is the trap the standard model creates. Owners typically don't start thinking about exit until a catalyst forces them to — a health event, an approach from a competitor, a partner deciding to leave. By the time an adviser is engaged, the window has closed. The work that would have moved the number is no longer possible to do in the time available, and the business goes to market roughly as-is. The completion rate that follows is the completion rate the underlying business earned, not the completion rate the owner deserved.
What this changes about the sequence
If most of the value uplift is built well before the deal room, then the sequence most owners follow — decide to sell, appoint a broker, take the business to market — has the steps in the wrong order. The broker joins the process at the point when most of what determined the outcome has already been fixed by the state of the business.
The alternative sequence starts earlier and does the value work first. Assess where the business stands honestly. Choose the exit route that actually fits — not always a sale (see the next piece). Then do the 18–36 months of work to close the gaps the assessment surfaced. Only then does the business go to a process — and it goes with the leverage on the owner's side of the table rather than the buyer's.
The four-in-five number isn't a fact about the market. It's a fact about the business. Which means, unlike the market, it's a fact the owner can change.