How large is the discount?
Large enough to exceed anything else an owner can change. Advisors report founder-dependent companies exiting at three to four times EBITDA against seven to eight times or higher for owner-independent businesses (Succession Thinking, The Key Man Discount, May 2025), and owner dependency is reported to compress multiples by 20 to 40 percent in the lower middle market (Livmo, April 2026).
On a business generating a million dollars of earnings, the gap between those two bands is three to four million dollars of enterprise value attributable to one structural feature. That is a larger swing than most owners negotiate on the multiple, and it is decided before the negotiation starts.
The same effect is visible in transaction data where the sample is large. Software transactions below five million dollars trade at about 2.1 times enterprise value to revenue, described as reflecting founder dependency, while transactions between one hundred and five hundred million dollars average 5.3 times, a gap attributed in part to de-risking (Aventis Advisors, study of 1,325 disclosed transactions, January 2026).
And it is visible from the other direction. In a study of 75 private equity and aggregator transactions from the fourth quarter of 2025, buyers paid a 30 to 40 percent premium for firms that had moved from founder-dependent practices to institutionalised businesses with scalable, recurring operations (Golden Door Asset Management, 2026 M&A Valuation Matrix, labelled as measuring the fourth quarter of 2025).
Is this a negotiating position or a valuation mechanism?
A mechanism, and a long-standing one. The key-person discount is recognised in United States valuation practice under Revenue Ruling 59-60 and is applied either as an entity-level reduction to value or as an increase to the discount rate used in a cash flow valuation. It appears in a formal valuation before any buyer expresses a view.
Practitioners quantify the entity-level version at roughly 15 to 25 percent, with one advisory firm putting the key-person discount at 15 to 20 percent or more applied directly to company value where an identifiable dependency exists (MarshBerry, updated 2024 to 2026).
The discount-rate version is less visible and often larger. Professional services firms are described as carrying an 18 to 25 percent cost of capital as a baseline, reflecting key-person risk and customer concentration as standard inputs (Sofer Advisors, March 2026). A higher discount rate reduces value in every period of the forecast rather than once.
The distinction matters because it tells an owner where to argue. A discount embedded in the discount rate is not removed by negotiation. It is removed by changing the facts that produced it, and then by being able to evidence the change.
“Every owner knows the business depends on them, and almost every owner believes the buyer will see how manageable that is. The buyer sees a single point of failure they are being asked to purchase, and they respond in the only two ways available: a lower number, or the same number with most of it paid later, contingent on you still being there.”
What exactly do buyers test?
Four dependencies, examined separately: who originates new business, who holds the significant customer relationships, who performs or supervises the technical delivery, and who makes the decisions that cannot wait. A business can be independent on three and dependent on the fourth, and the fourth will still price it.
Origination is usually the most expensive. If the pipeline exists because the owner is known in the market, the buyer is acquiring a revenue stream with a departure date attached. This is also the dependency that takes longest to remove, because the evidence of removal is a second person's closed business over several periods.
Customer concentration compounds the key-person discount rather than sitting alongside it. A single customer above 30 percent of revenue is reported to trigger a further 20 to 35 percent reduction against a diversified peer, and above that threshold some buyers and some lenders decline the process outright (FOCUS Investment Banking, July 2025 analysis, cited by Livmo, April 2026, labelled as 2025 deal experience). Where both the relationship and the concentration attach to the owner, the two effects stack.
The commercial reason removal pays is not only the multiple. An owner-optional business is accessible to strategic acquirers, sponsor platforms and individual buyers using government-guaranteed financing at the same time, and competition between buyer types is itself reported to add 30 to 50 percent to a final price (Livmo, April 2026).
| Dependency | How a buyer tests it | What removal requires |
|---|---|---|
| Origination | Who is recorded as the originator on new business over the last three years | Closed business attributable to other named people across at least two years |
| Customer relationships | Whose name is on the contract, and who attends the customer's meetings | Contracts in the company name, with a named relationship holder and a meeting record |
| Technical delivery | Whether the owner reviews, approves or performs the work that clients pay for | Documented method, qualified staff performing it, and quality outcomes without the owner in the file |
| Decision authority | What cannot proceed while the owner is away for two weeks | Written approval limits and a management team that has exercised them |
How does the discount arrive as structure rather than price?
As deferred consideration, and this is where dependence costs sellers money they believe they have already been paid. A buyer who cannot verify that the business runs without the owner will bridge the uncertainty with an earnout, a seller note, or a long employment commitment rather than by lowering the headline number.
The incidence at the small end is high. Thirty-five percent of the smallest lower middle market deals, those with closing payments at or below twenty-five million dollars, include an earnout, and 29 percent of all lower middle market deals do (SRS Acquiom, 2026 M&A Deal Terms Special Report: Lower Middle-Market Deals, published 5 June 2026, drawn from more than 4,400 private-target transactions closed through 2025).
What those earnouts pay is the part that changes the arithmetic. Across all deals carrying an earnout, closer to one in five earnout dollars is actually paid (SRS Acquiom, M&A Earnout and Milestone Trends, published 7 July 2026, on a full-year 2025 deal population). An offer with a large contingent component should be compared to a cash offer at something closer to a twenty-cent dollar on the contingent portion.
Structure is doing more of this work in the current market generally. Practitioners report a rise in deferred purchase price mechanisms hedging seller performance against underwritten value, through earnouts, seller notes and similar structures (Andrew Silver of Much Shelist, quoted by PitchBook News, 6 July 2026). Founder dependence is the single most common reason a buyer reaches for them.
What does removal actually require?
Two years of evidence, not an organisation chart. The requirement is that someone other than the owner has demonstrably done the thing the owner used to do, across enough periods for the pattern to be visible in the accounts and in the customer record.
That timetable matches the general preparation guidance. Exit preparation is advised to begin twelve to twenty-four months before a sale in order to improve valuations, which places dependency removal at the long end of the window (EY, Global Private Equity Exit Readiness Study 2026, published 28 July 2026).
The evidence itself is specific and can be assembled deliberately. Contracts in the company's name rather than the owner's. A named relationship holder for each significant customer, with the meeting record to support it. New business closed by others, tracked by originator. Documented approval authority that does not route through one person. And at least thirty-six months of clean, normalized monthly financial statements covering the period in which all of that became true (Capstone Partners, Capital Markets Update, 4 June 2026).
The reason to start early is that this is the one discount with a fixed cost and a knowable return. Sector is given. Scale takes capital. Market timing is not controllable. Dependence is a set of specific arrangements inside a business, and every one of them can be changed by decision.
As of August 2026
Sources: Succession Thinking, The Key Man Discount, May 2025, for founder-dependent companies exiting at three to four times EBITDA against seven to eight times or higher for owner-independent businesses; Livmo, April 2026, for owner dependency compressing lower middle market multiples by 20 to 40 percent and for competition between buyer types adding 30 to 50 percent to a final price; MarshBerry, updated 2024 to 2026, for a key-person discount of 15 to 20 percent or more applied directly to company value; Sofer Advisors, March 2026, for professional services firms carrying an 18 to 25 percent baseline cost of capital reflecting key-person risk and customer concentration; Aventis Advisors, software valuation multiples study of 1,325 disclosed transactions, January 2026, for enterprise value to revenue by deal size; Golden Door Asset Management, 2026 M&A Valuation Matrix, analysing 75 private equity and aggregator transactions from the fourth quarter of 2025, for the 30 to 40 percent premium paid for institutionalised businesses; FOCUS Investment Banking, July 2025 analysis cited by Livmo, April 2026, for a single customer above 30 percent of revenue triggering a further 20 to 35 percent reduction and for buyers and lenders declining above that threshold, labelled as 2025 deal experience; SRS Acquiom, 2026 M&A Deal Terms Special Report: Lower Middle-Market Deals, published 5 June 2026, drawn from more than 4,400 private-target transactions closed through 2025, for earnout incidence at 35 percent of the smallest lower middle market deals and 29 percent across all of them; SRS Acquiom, M&A Earnout and Milestone Trends, published 7 July 2026, on a full-year 2025 deal population, for closer to one in five earnout dollars actually being paid; PitchBook News, 6 July 2026, quoting Andrew Silver of Much Shelist, for the rise in deferred purchase price mechanisms; EY, Global Private Equity Exit Readiness Study 2026, published 28 July 2026, for the twelve to twenty-four month preparation runway; Capstone Partners, Capital Markets Update, 4 June 2026, for the thirty-six months of clean normalized monthly financial statements standard. The key-person discount is recognised in United States valuation practice under Revenue Ruling 59-60; that ruling is cited for the mechanism and not for any percentage. Companion articles on this site cover customer concentration and the recurring revenue premium.