Ask a seller what their business is worth and you'll get a number built on hope. Ask a lender and you'll get one built on cash flow. Valuation is where those two worlds collide, and the buyers who understand how it actually works, not the folklore, are the ones who avoid overpaying and still get deals to the closing table.
Small-business valuation isn't mysterious. It comes down to two things: a measure of the profit the business really produces, and a multiple the market is willing to pay for that profit. Get both right and you know what to offer.
A small business's tax return is designed to minimize taxable income, so it almost never shows the true economic profit an owner enjoys. Valuation starts by "recasting" or "normalizing" the financials to reveal what a buyer would actually earn.
For most small businesses, the key number is Seller's Discretionary Earnings (SDE): net profit, plus the owner's salary, plus one-time and non-business expenses, plus non-cash items like depreciation. SDE answers the question a buyer-operator cares about, which is how much total financial benefit this business throws off for one working owner.
For larger businesses, or those run by a management team rather than a hands-on owner, buyers use EBITDA (earnings before interest, taxes, depreciation, and amortization). The difference matters: SDE adds back one owner's salary, EBITDA does not, so the same business shows a higher SDE than EBITDA. Mixing the two up is the single most common valuation error. A "5x" quote means very different things depending on which base it's applied to.
The multiple is what the market pays per dollar of earnings, and it's set by risk. In 2026, typical ranges look like this:
Multiples climb with size, so a bigger business is worth more per dollar of profit than a small one. Buyers pay up for scale because larger companies are less risky and less dependent on any one person.
Two businesses with identical earnings can be worth very different amounts. The multiple flexes on risk, and these are the factors that move it:
Owner dependence. A business that runs without the owner is worth far more than one where the owner is the business. If revenue walks out the door when the seller leaves, the multiple drops, or the deal dies. As one valuation rule puts it, documented, recurring, transferable cash flow earns a premium; income that depends on the owner working 60-hour weeks does not.
Recurring revenue. Contracts, subscriptions, and repeat customers are worth more than one-off project work, because they're predictable. A business with service agreements will out-value an otherwise identical business that starts every year at zero.
Customer concentration. If one client is 40% of revenue, a buyer sees a business that could lose nearly half its income overnight. Diversified revenue earns a higher multiple.
Clean books and growth. Financials a buyer and lender can trust, plus a demonstrated growth trend, both push the multiple up. Messy records or declining revenue push it down fast.
Industry. Some sectors simply command more. Recurring, essential, hard-to-disrupt businesses like home services, self-storage, and car washes trade at the high end. An HVAC business that fetches roughly 2.9x SDE as a Main Street deal can command something closer to 8x EBITDA inside a private-equity roll-up, purely because of who's buying and why.
The math is straightforward once you have the pieces. A business with $400,000 in SDE, in a decent industry, with modest owner dependence, might be worth 3x SDE, or about $1.2 million. Improve the risk profile with recurring contracts, diversified customers, and a manager in place, and that same earnings base might support 3.75x, or $1.5 million. The $300,000 difference isn't in the earnings; it's entirely in the risk the buyer is taking on.
That's the insight that changes how you negotiate: you're not just buying profit, you're pricing risk. When a seller quotes a number, the productive conversation isn't "that's too high." It's "here's what would need to be true about the risk for that number to work."
The dangerous mistakes are believing the seller's add-backs without verifying them, applying an EBITDA multiple to an SDE number (or vice versa), and anchoring on an asking price instead of building your own number from the cash flow. A valuation you didn't build yourself isn't a valuation. It's a hope you inherited.
This is exactly the moment to bring in a financial analyst or M&A advisor who prices businesses for a living, and often a quality-of-earnings review to confirm the earnings are real before you commit. Five Experts maps those experts to the deal-and-financing phase, so when you're staring at a seller's number, you have someone who can tell you what it's actually worth.
Build your own number first. The seller's is a starting point, not the truth.
