A Q&A on passing an acquirer’s inspection before anybody schedules one. Run the business so it could survive due diligence, and you will own a better business whether or not a buyer ever knocks.

Published by 1000Startups.com  |  Updated August 2026  |  Reading time: about nine minutes

Most owners think of a sale as an event. It is closer to an exam, and the syllabus has been posted for years. What follows is the exam, question by question, with the actual numbers buyers use. Every answer here is sourced, because the useful version of this conversation is the one you can check.

Figure 1. Two of the most expensive findings in due diligence, priced. Full sources at the end.

Let’s start with the number that ruins the mood. How many businesses that go up for sale actually sell?

Fewer than most owners assume. The Exit Planning Institute puts it plainly: only 20 to 30 percent of businesses that go to market actually sell, which leaves as many as 80 percent of owners with no clean way to harvest the wealth they spent decades building.

The advisor-side data tells a compatible story from a different angle. Pepperdine University’s 2025 Private Capital Markets Report found that roughly 31 percent of sell-side engagements ended with no transaction at all. The leading cause was a valuation gap, at 26 percent, followed by unreasonable demands from one side or the other at 14 percent, and simply no market for the business at 12 percent. When price was the sticking point, about 84 percent of the gaps were between 11 and 30 percent wide.

That last detail is the encouraging one. An 11 to 30 percent gap is not a canyon. It is roughly the size of the discounts described in the rest of this article, which means most failed sales are failed preparations wearing a disguise.

So a business can be profitable and still be unsellable?

Routinely. The word the field uses is transferable value, and it is not the same thing as profit. Transferable value is whatever survives your departure: documented processes, contracted revenue, relationships that live in the company rather than in your phone, and a team that can make decisions without checking the group chat.

If none of that survives you, a buyer is not acquiring a company. They are acquiring your job, complete with your hours and none of your enthusiasm, and they will price it accordingly. The business is not bad. It is unbuyable, which is a different and entirely fixable condition.

What is the first thing a buyer opens?

Your customer list, sorted descending. Customer concentration is the most predictable discount in the market because it is the easiest risk to see and the hardest to argue with.

The thresholds are remarkably consistent across advisors. A well-diversified business generally has no single customer above 10 percent of revenue, with the top ten accounts under half of the total. Above that, the pricing ladder in Figure 1 kicks in: MyExec’s 2026 guidance describes a 5 to 15 percent multiple discount for a top customer in the 10 to 20 percent range, a 10 to 20 percent price reduction at 25 to 40 percent concentration, and 20 to 30 percent or more once a single client passes 40 percent, at which point many institutional buyers stop returning calls entirely.

Mid Mkt Advisors frames the same thing in turns of EBITDA: buyers discount 0.5 to 2.0 times EBITDA depending on severity and contract terms, and above 50 percent concentration many will walk or demand a personal guarantee from the seller. CT Acquisitions puts the arithmetic on a real business: on a company with $5 million of EBITDA, concentration alone can cost $5 to $10 million of purchase price.

One client at 30 percent of revenue is not a customer. It is an unhedged liability with a friendly account manager.

My biggest client is 30 percent of revenue, and they adore us. Doesn’t loyalty count?

It counts, but not for what you think. Buyers do not price affection. They price who the affection is for.

Mid Mkt Advisors is direct on this point: what matters is whether the relationship is personal, meaning attached to the founder, or institutional, meaning attached to the company. A customer at 30 percent of revenue on a multi-year contract with several relationships across both organizations draws a smaller discount than a customer at 25 percent on a handshake and a standing lunch.

There is also the leverage problem nobody enjoys discussing. When a client knows they are a third of your revenue, they negotiate like it, and every price concession and extended payment term shows up in the margins a buyer is underwriting.

Peter Thiel is famous for arguing that competition is for losers, and he is right that a monopoly is a wonderful thing to own. The trouble is directionality. A monopoly you hold over a market is an asset. A monopoly your largest client holds over you is the identical structure aimed the wrong way, and a buyer will spot it before the coffee arrives.

The genuinely good news is that direction beats position. A documented slide from 35 percent to 24 percent over eighteen months tells a fundamentally different story than a static 35 percent snapshot. You do not have to fire your best client. You have to grow past them.

Is recurring revenue really worth more than simply bigger revenue?

Yes, and it is not close. A smaller book of renewing revenue routinely outvalues a bigger pile of excellent project work, because one is a forecast and the other is a hope with a good track record.

The estimates cluster tightly. RELAY Corporate Finance reports that companies running mainly on recurring revenue typically receive multiples 20 to 40 percent higher than comparable project-based companies. CT Acquisitions puts the premium at 1.5 to 2 times for a business with roughly 75 percent contracted revenue. Icon Business Advisors describes a spread of 1.0 to 3.0 turns of EBITDA within the same industry at the same earnings level.

Mayfaire Row Partners published a useful hierarchy drawn from GF Data’s lower-middle-market reporting: true subscription businesses with automatic renewal and low churn at the top, long-term service agreements next, annual retainers below that, and easily cancelable month-to-month arrangements at the bottom of the recurring tier. Where you sit on that ladder is a design decision, not a market condition.

Icon’s practical version is worth stealing: moving from 10 percent recurring to 40 percent recurring can meaningfully move your multiple, and buyers want at least twelve months of renewal data before they will believe the stream is proven rather than experimental.

How bad is founder dependency, in actual numbers?

It is the value killer nobody wants to name, and it has the largest published gap of anything in this article.

Research from The Value Builder System, reported by Duran Advisors, values businesses that can run without the owner at roughly 4.49 times pre-tax profit, against 2.93 times where the owner knows every customer personally. That is more than a 50 percent swing, and it is larger than most owners will ever add through growth alone.

The same body of work, drawn from an analysis of more than 40,000 businesses, found that companies scoring 80 or above on the Value Builder assessment received acquisition offers 71 percent higher than average. The average score is 59. Bennett Financials, running a score-to-multiple model built on 5,000 benchmarked companies, reports 2.76 times EBITDA below a score of 50 and 6.27 times at 80 or above.

Here is the detail that should reorder your to-do list. In that model, owner dependence carries roughly 25 of the 100 available points and recurring revenue carries about 10. Converting to retainers before you fix who the business depends on is doing the second-hardest thing first.

People keep telling me to take a month off. Does that prove anything, or is it just a vacation with extra steps?

It proves the only thing a buyer cares about, which is that the business is a system rather than a personality.

Take the month. Do not theorize about the month. What breaks while you are gone is your list of the next three years of work, and it is the same list an acquirer would have written for you, at their price rather than yours.

Paul Graham’s most repeated instruction to founders is to do things that don’t scale, and it remains excellent advice with an expiration date nobody prints on the label. Answering every email yourself is how you win your first fifty customers. It is also, five years later, the precise line item an acquirer subtracts.

The cost of skipping this shows up in time as much as money. Arx Business Brokers notes that a well-structured business often sells in six to nine months while owner-dependent companies can sit on the market for twelve to eighteen or longer, because fewer buyers want to inherit a complex operational role. Fewer bidders means less competition, and less competition means a lower final number.

One more thing worth naming, because it is the item most likely to be genuinely unfixable: if the business cannot legally operate without your professional license, no amount of documentation solves it. That needs its own succession plan, and it needs to start early.

Why do deals die after the letter of intent is signed?

Usually because the financial statements do not survive contact with a quality-of-earnings review.

Axial’s 2025 Dead Deal Report found that EBITDA discrepancies uncovered in quality-of-earnings work accounted for 21.3 percent of deals that failed after the letter of intent was signed, more than double the 10.6 percent rate in 2023. Data compiled from IBBA and M&A Source Market Pulse surveys indicates that 78 percent of buyers walk away when a seller cannot produce three years of reviewed or compiled financial statements.

Diligence is also getting slower, which gives problems more room to surface. IBBA and M&A Source data show that the $5 million to $10 million segment averaged a record 5.5 months in diligence during 2025, against a historical post-LOI window of 60 to 90 days.

None of this is about honesty. Most of these discrepancies are ordinary bookkeeping drift that nobody had a reason to reconcile. The reason to reconcile is that a stranger with a spreadsheet is eventually going to try.

What are the boring items that quietly cost real money?

The ones with no revenue attached, which is exactly why they never get done.

Work through this list on an ordinary Tuesday when nothing is at stake:

• Contracts that survive a change of control instead of terminating on one.
• Employment and non-solicit agreements that actually exist, signed, for the people who matter.
• Clear intellectual property ownership, including from that contractor you hired in 2019.
• Books that reconcile to the tax returns and the bank statements without a narrator.
• Three years of reviewed or compiled financial statements, ready to hand over.
• A corporate record that is complete: cap table, minutes, licenses, leases, and permits.

None of this makes you a dollar. All of it takes discount off the table, which is the same thing arriving through a less exciting door.

Ben Horowitz has a line about there being no silver bullets, only lead bullets. He was describing how to beat a competitor by out-building them rather than out-maneuvering them, but it holds up nicely as a description of a weekend spent chasing down contractor IP assignments. Nobody has ever felt heroic doing that. It shows up in the price anyway.

What is an earn-out, and why should I care about it years before I sell?

An earn-out is the part of the price you receive only if the business performs after you hand it over. It is where the disagreement about your company’s quality moves once the disagreement about price is settled.

It is also increasingly normal. SRS Acquiom’s 2026 analysis of more than 4,400 private-target transactions found earnouts in 29 percent of lower-middle-market deals up to $50 million, rising to 35 percent for deals up to $25 million. Across the broader dataset, all-cash deals fell to 51 percent in 2025 from 58 percent in 2024, and the median earnout equaled about 34 percent of the payment due at closing. IBBA’s fourth-quarter 2025 reporting has sellers averaging 76 to 89 percent cash at close, with the balance bridged by earnouts, rollover equity, or seller notes.

Read those two numbers together, because two offers with the same headline can pay very differently. And note what an earn-out actually is underneath the legal language: a bet that the thing you described as systematic really was. This is the moment your written sales method stops being an internal document and starts being worth money.

Should I commission the inspection on myself?

Nobody buys a house without an inspection, and nobody sells a good one without having quietly had it done first. Pay an advisor for the diligence checklist and run it against your own company while the stakes are zero.

Almost nobody does this. BizBuySell’s second-quarter 2026 data indicates that only 14 percent of owners have completed a professional valuation before going to market. The Exit Planning Institute’s generational research found that among Baby Boomer owners, more than half of whom plan to exit within five years, only 27 percent have completed a formal valuation, 9 percent have an estate plan, and 5 percent have a dedicated exit planning team.

The pricing is knowable. A quality-of-earnings report for a smaller lower-middle-market business generally runs $15,000 to $25,000 under $3 million of adjusted EBITDA and $25,000 to $50,000 from $3 million to $10 million, per figures compiled by Iconic and CT Acquisitions in 2026. Against a discount measured in turns of EBITDA, that is the cheapest insurance on the list.

I have no intention of selling. Why is any of this my problem?

Because intention is not the primary scheduler of exits. Roughly half of all business exits are involuntary, driven by what exit planners call the five Ds: death, disability, distress, disagreement, and divorce. The Exit Planning Institute’s national research also found that 73 percent of privately held U.S. companies expect to transition within ten years, a roughly $14 trillion transfer.

And the best unsolicited offers arrive at the worst possible time, from someone who has been watching you for two years. You do not get to prepare after the email lands. You only get to have already prepared.

There is a quieter argument too. Every item on the diligence list is something you would want anyway. Diversified revenue means you sleep better. Recurring contracts mean January is not a cliff. Documented methods mean you can hire. A business that runs without you means you can actually go to Portugal. Nobody has ever regretted any of it on the grounds that no buyer showed up.

What is the honest timeline?

Longer than a sale process and shorter than you fear.

Meaningful customer diversification takes 12 to 24 months of deliberate new business development. Moving from a hub-and-spoke model to a genuine team-and-systems model takes 12 to 36 months. Advisors generally recommend starting the structural work three to five years out, and the sale process itself, from listing to close, typically runs another six to twelve months.

The single biggest variable is runway. An owner who needs to sell in six months accepts the discount. An owner with two years fixes the thing and collects the premium instead.

The one-page version

If you read nothing else, this is the exam:

• No single customer above 10 to 15 percent of revenue, and a documented downward trend if you are above it.
• A recurring or contracted revenue base you can point to, with at least twelve months of renewal data.
• Relationships that belong to the company rather than to you personally.
• A month away, actually taken, with a written list of everything that broke.
• Three years of clean financial statements that survive a quality-of-earnings review.
• Contracts, IP assignments, and employment agreements that are boring in the good way.
• A written methodology, because an earn-out is a bet on whether it was ever real.
• A self-commissioned diligence checklist, run on a Tuesday when nothing is at stake.

The bottom line: the sale is just the exam that makes you finally do the homework. The homework was worth doing anyway.

Sources

Exit Planning Institute, State of Owner Readiness research and Generational State of Owner Readiness Report. exit-planning-institute.org

Pepperdine Graziadio Business School, 2025 Private Capital Markets Report, as summarized by Chinook Capital Advisors (September 2025).

SRS Acquiom, 2026 Lower Middle-Market M&A Deals Report and 2026 Deal Terms Study, drawn from more than 4,400 private-target transactions. srsacquiom.com

IBBA and M&A Source, Market Pulse Survey, Q4 2025 and Q1 2026.

Axial, 2025 Dead Deal Report, as reported by DueDilio (June 2026).

The Value Builder System, owner-dependence and Value Builder Score research, as reported by Duran Advisors (2026) and Truforte Business Group (2026).

Bennett Financials, score-to-multiple model built on 5,000 benchmarked companies (June 2026).

MyExec, How Customer Concentration Affects Business Valuation (2026). CT Acquisitions, Customer Concentration Risk in a Business Sale (2026) and Valuing Recurring Revenue vs Project Revenue (2026). Mid Mkt Advisors, Customer Concentration: What ‘Too High’ Actually Means to a PE Buyer (2026).

RELAY Corporate Finance (2026), Icon Business Advisors (2026), and Mayfaire Row Partners on recurring versus project revenue premiums, the last citing GF Data’s lower-middle-market reporting.

BizBuySell Insight Report, Q2 2026. Iconic, due diligence and valuation cost data (2026). Arx Business Brokers, owner dependency and time-to-close (2026).

Note on interpretation: figures drawn from broker and advisory publications describe buyer rules of thumb and practitioner experience, not audited transaction averages. They are directionally consistent across independent sources, which is the reason to trust the shape of the range rather than any single number in it.