A business is generally valued off its normalized earnings, adjusted for how transferable those earnings are without the owner. In 2025, businesses sold on BizBuySell traded at an average cash flow multiple of 2.61x. The spread around that average has a lot to do with recurring revenue, owner dependency, customer concentration, and documented systems.
The one-sentence version
Almost every valuation of a privately held operating business, however elaborate the report, is doing one thing: estimating what a buyer would pay today for the earnings the business is expected to produce tomorrow, discounted for the risk that those earnings don't show up.
That's the whole idea. Two levers, earnings and risk. Owners spend nearly all their attention on the first one and almost none on the second, which is unfortunate, because the second is where most of the variation lives.
The IRS has said essentially this since 1959. IRS Revenue Ruling 59-60, 1959-1 C.B. 237, still the foundational guidance for valuing closely held stock, lists eight factors requiring careful analysis in each case. The first is "The nature of the business and the history of the enterprise from its inception." Note what leads: not the financials. The character of the thing. (Source note: the ruling itself is not hosted at a stable IRS.gov URL; the link above is a full-text, verbatim reproduction of Rev. Rul. 59-60 published by a business valuation firm, verified against the ruling’s known language before publishing.)
Normalized earnings: the number under the multiple
Before any multiple gets applied, someone has to decide what the earnings actually are. For most small and mid-sized businesses that means seller's discretionary earnings or adjusted EBITDA, which is the reported profit with the owner's personal and discretionary items added back and any below-market items corrected.
This is where a real valuation starts to differ from a rule of thumb. Adding back the owner's above-market salary is standard. Adding back the truck, the family cell phone plan, and the country club is standard. Adding back three years of legal fees from a lawsuit that isn't over yet is an argument. Adding back an owner's salary while ignoring what it would cost to hire a general manager to replace that owner's actual work is the single most common way a business gets overvalued in an owner's own head.
Buyers know this. When a buyer looks at the add-back schedule, they're not just checking arithmetic. They're forming a view about how the seller thinks.
Value driver one: recurring revenue
A dollar of revenue that renews automatically is worth substantially more than a dollar that has to be won again next quarter, because it carries less risk of not appearing. That's the entire mechanism. Contracts, subscriptions, service agreements, maintenance plans, and long-standing repeat purchasing all move revenue toward the predictable end of that spectrum.
The signal a buyer looks for isn't the word "recurring" in a pitch deck. It's evidence: contract terms and remaining duration, historical renewal and churn rates, and revenue retention by cohort. A business that can show three years of renewal data is telling a different story than one that says most customers come back.
Value driver two: owner dependency
This is the one owners consistently underestimate, partly because the thing that makes a business valuable to run is often the thing that makes it hard to sell.
The question a buyer is asking is narrow and unsentimental: if the owner is gone in ninety days, what breaks? If the owner holds the key customer relationships personally, or is the only licensed professional, or does the estimating, or is the only person who knows the pricing logic, then what's being sold is a job rather than a business. Buyers price that difference, and they price it hard.
The practical markers are boring and easy to check. Whether there's a second-in-command with real authority. Whether the owner can be away for three consecutive weeks without daily contact. Whether customers ask for the company or for the owner by name. Whether anyone else can quote a job.
Value drivers three and four: customer concentration and documented systems
Customer concentration is the risk that one departure changes everything. When a single customer represents a large share of revenue, a buyer isn't buying a diversified earnings stream, they're buying a relationship they don't control, with someone who has never met them. That risk gets priced, and in some cases it caps the deal structure entirely, pushing consideration into an earnout rather than cash at close. The same logic applies to supplier and referral-source concentration, which owners think about less often.
Documented systems are the least glamorous driver and among the most reliable. Written procedures, a real org chart, clean and current financial statements, a functioning CRM, documented pricing methodology, current employment agreements, an accurate asset list, and intellectual property that's actually assigned to the entity. None of this generates a dollar of profit. All of it reduces the buyer's perceived risk that the earnings walk out the door, and reduced risk is, definitionally, higher value.
There's a second benefit worth noting. Businesses with clean documentation move through diligence faster. In 2025, the median time to close on BizBuySell was 170 days, and manufacturing deals took a median of 223 days. Deals that drag are deals that renegotiate.
What the market data actually shows
Real transaction data is useful mostly as a sanity check on expectations, not as a valuation. According to BizBuySell's 2025 Year in Review, published January 30, 2026, 9,586 small business transactions closed on the platform in 2025, representing $7.95 billion in total enterprise value. The median sale price was $350,000, on median revenue of $703,000 and median cash flow of $158,950. Businesses sold at 94% of asking price. The average cash flow multiple was 2.61x and the average revenue multiple was 0.69x.
Two cautions about those numbers. They describe a specific slice of the market, Main Street businesses listed on one marketplace, and they say nothing about any individual company. And an average multiple is exactly the wrong tool for an owner asking what their business is worth, because the entire question is why a given business sits above or below it.
The value drivers, compared
| Value driver | What the buyer is really testing | Evidence that tends to support a higher multiple | Conditions that tend to pull the multiple down |
|---|---|---|---|
| Recurring revenue | Will the revenue still be here next year without new selling? | Multi-year contracts, documented renewal and churn history, revenue retention by cohort | Project-based or one-time work, no contracts, revenue rebuilt from zero each year |
| Owner dependency | What breaks if the owner leaves in ninety days? | Empowered management layer, relationships held at the company level, owner able to step away | Owner holds the licenses, the estimating, the pricing, and the key relationships personally |
| Customer concentration | How much of the earnings depends on one phone call going badly? | Broad customer base, long average tenure, no single account dominant | One or two customers driving most of revenue; concentrated referral or supplier sources |
| Documented systems | Can someone else operate this without the owner's memory? | Written procedures, current and reviewed financials, clean entity records, assigned IP | Undocumented processes, commingled personal and business expenses, records reconstructed at diligence |
Why most owners have never had a real valuation done
Three reasons come up repeatedly, and none of them are laziness.
The first is that owners have a number in their head, usually derived from an industry rule of thumb heard at a conference or a figure a competitor supposedly got. It feels like knowledge. It functions like a guess.
The second is that a valuation feels like a transaction step, something you do when you're selling. So it gets deferred until the year of the sale, which is precisely the year it's least useful, because by then there's no time left to fix anything it reveals.
The third is cost and formality. A full certified appraisal is a significant engagement, and owners reasonably don't want one every year. But the alternative to a formal appraisal isn't nothing. A calculation of value, a broker's opinion, or a structured driver assessment can each establish a baseline and, more importantly, identify which of the four drivers above is currently costing the most.
The timing argument is the one worth sitting with. Every driver on that list takes years to move. Reducing owner dependency means hiring and delegating. Building recurring revenue means changing how the company sells. Diversifying away from a dominant customer means winning others first. An owner who learns about these gaps five years out has options. An owner who learns at the letter of intent has a renegotiation.
Where the buy-sell agreement comes back in
Valuation isn't only a sale question. It's the input to the agreement that governs what happens if an owner dies, becomes disabled, or wants out. A buy-sell agreement with a stale fixed price, or a vague instruction to "obtain an appraisal," is only as reliable as the method behind it, which is the subject of our companion piece on what happens when co-owners never wrote a buy-sell agreement.
The stakes there are concrete. In Connelly v. United States, decided by a unanimous Supreme Court on June 6, 2024, an agreement that contemplated an outside appraisal was settled instead by informal agreement between the surviving brother and the deceased brother's son, and the estate ultimately owed an additional $889,914 in federal estate tax. The valuation method wasn't a technicality. It was the whole outcome.
A composite illustration
Consider a hypothetical composite: a 15-year-old commercial services company, roughly $4 million in revenue, healthy margins, an owner in his late fifties who is well liked and, in practice, the company's entire sales function. One client accounts for a large share of revenue. Financials are accurate but prepared for tax minimization rather than for a buyer. The owner's expectation, drawn from an industry rule of thumb, sits meaningfully above what a buyer would likely offer, and the gap isn't about profitability. It's three risk facts stacked together. What's useful here isn't the number. It's that all three facts are addressable over a few years, and none of them are addressable in the ninety days before a closing.
This composite is illustrative, constructed for this article, and does not describe any actual client.
What owners can reasonably do next
Not a prescription, just the questions that tend to matter. Confirm with your CPA which earnings figure a buyer in your industry would actually work from, and what the defensible add-backs are. Evaluate honestly, ideally with someone outside the business, what would break in ninety days without you. Calculate your largest customer as a percentage of revenue and of gross profit, since those two numbers often differ. And review with your attorney whether the valuation method in any existing buy-sell agreement matches how a buyer would really price the company.
BAS Financial works with San Diego business owners on the intersection of company value and personal financial planning through the San Diego Business Owner's Valuation & Exit Strategy Hub. Any fees are discussed during a complimentary review.
Frequently asked questions
What's the difference between a valuation and a broker's opinion of value?
A formal valuation or appraisal is a defined professional engagement, often prepared to standards suitable for tax, litigation, or estate purposes. A broker's opinion of value is a market-based estimate of likely sale price, generally faster and less formal. Which one fits a given purpose is worth confirming with your CPA or attorney.
Are industry rule-of-thumb multiples reliable?
They're useful for orientation and poor for precision. BizBuySell reported an average cash flow multiple of 2.61x across 2025 transactions on its platform, but that average blends thousands of businesses with very different risk profiles. The reason two similar companies sell at different multiples is usually the risk factors, not the industry.
How does owner dependency get measured?
There's no single metric. Buyers typically look at whether a management layer exists with real decision authority, whether customer relationships sit with the company or the individual, whether the owner holds required licenses personally, and whether the owner can be absent for an extended period without daily involvement.
How far ahead does this matter?
Each of the main drivers takes years rather than months to change. Reducing owner dependency requires hiring and delegating, building recurring revenue requires changing how the company sells, and reducing customer concentration requires winning new accounts first. Owners who assess these several years before a transition generally have more options available.
Does a valuation matter if there's no plan to sell?
It can, for reasons unrelated to a sale. Valuation is an input to buy-sell agreements, estate planning, gifting, divorce, partner admission, bank financing, and insurance sizing. Whether a given situation calls for a formal valuation is a question for your attorney and CPA.