How to Value a Small Business: What the Numbers Actually Tell You

The short version

• A valuation is not a multiple applied to the seller's stated profit. It is the conversion of that profit into the cash a buyer actually keeps.
• The same earnings can sell $555,000 apart on a $300,000-SDE business, the gap between a 1.65x and a 3.5x multiple.
• The multiple is set by how real, transferable, and safe the earnings are, not by the industry alone.
• Below: which earnings to start from, how to convert them, and what the multiple is actually paying for.

Most people who ask how to value a small business want a formula. The formula is the easy part, and it is also where most valuations go wrong.

Earnings times a multiple gives you a number. The two inputs are where the money is, and both are softer than they look.

A valuation is really one conversion. You are turning the seller's reported profit into the cash a buyer actually keeps, then pricing the risk that the cash does not survive the owner leaving.

The earnings figure is not a fact you are handed. It is a claim the seller makes, and the multiple is set by how much of that claim survives a buyer's scrutiny.

This article is the hub for the whole question. It walks that conversion, then routes each piece to the deeper article that handles it.

How to value a small business in one method

You value a small business by multiplying its real annual earnings by a market multiple, where the earnings are the seller's discretionary earnings (SDE) after verification, and the multiple reflects how independent and transferable the business is. On a $300,000-SDE service business, that ranges from about 1.65x to 3.5x, a $555,000 swing on identical earnings.

So the formula has two inputs, and neither is given to you clean. The first is which earnings, and the second is which multiple.

A broker hands you both, prefilled. Their job is to close the listing, not to defend the number to a skeptical buyer reading the books line by line.

That prefill is not neutral, and the incentive explains why. The seller's number is built to be believed, because everyone paid on the sale is paid on a higher one.

The rest of this article treats both inputs as things to verify, not accept. That is the difference between a valuation and a guess.

Start with the earnings, not the multiple

Begin with the earnings, because the multiple is meaningless until you know what it multiplies. Two businesses quoted "at a 3x multiple" can be worth very different amounts if their earnings were calculated differently.

Small businesses are valued on one of two earnings figures. The right one depends on the size and structure of the business.

• SDE (seller's discretionary earnings): net profit plus the owner's salary, plus one owner's benefits, plus non-recurring and personal expenses. This is the standard for owner-operated businesses where one person runs it.
• EBITDA: earnings before interest, taxes, depreciation, and amortization, with no owner's salary added back. This is the standard for larger businesses that already pay a manager to run the floor.

The two are not interchangeable, and quoting the wrong one inflates or deflates the number. The full comparison lives in the difference between SDE and EBITDA, and a plain definition sits in what EBITDA actually measures.

SDE is built by adding things back to net profit. Each add-back raises the earnings figure, and every dollar added back at a 3x multiple raises the price by three dollars.

That is exactly why add-backs are the most disputed line in any small-business deal. A seller piles personal travel, a relative's no-show salary, and one-time costs into the figure, and the add-backs a seller stacks onto SDE do not all survive a buyer's review.

The earnings number, in other words, is the variable under examination. Before any multiple matters, you are deciding how much of the stated profit is real.

Convert seller profit into buyer cash flow

Here is the step most valuation guides skip entirely. The seller's profit is not the buyer's profit, and the gap between them is often the whole deal.

A buyer is not purchasing last year's SDE. They are purchasing the cash that remains after they replace the owner, service the acquisition loan, and fund the business through its working-capital cycle.

Hold one example through the whole conversion: a service business with $300,000 of SDE, owner-operated, real revenue. Walk it down to what the buyer actually keeps.

1. Start with verified SDE: $300,000. This is the figure after the add-backs have been checked, not the seller's first number.
2. Subtract owner replacement cost. If the owner does $90,000 of work a manager must now be paid to do, real earnings to a new owner drop to $210,000, and the true cost of replacing the seller is frequently understated.
3. Subtract debt service. A buyer financing the purchase, often through an SBA 7(a) loan, repays that loan out of these earnings, and the annual payment can run $60,000 to $90,000 on a deal this size.
4. Account for working capital. The buyer must fund payroll and receivables from day one, and the working capital a buyer has to bring to closing is cash that does not come back quickly.

By the bottom of that list, the seller's $300,000 has become something much smaller in the buyer's hands. That is not pessimism; it is arithmetic.

Run the numbers and the picture is stark. Take out $90,000 of replacement cost and $75,000 of debt service, and the $300,000 figure leaves roughly $135,000 of cash before the buyer has set aside a dollar for working capital.

That remaining cash is what the buyer is really purchasing. The price they can pay is anchored to that figure, not to the headline SDE the listing advertises.

Run it as a return, not a feeling. That $135,000 is the cash left to reward the buyer's own invested capital once debt service is paid, and on a deal this size it is thin, with the working-capital line still not subtracted.

This is also why a profitable P&L can still describe a business that hands its owner very little spendable cash. The mechanics of why profit and cash flow are not the same number decide whether the earnings can actually carry a loan.

A valuation that skips this conversion is the broker's valuation, not the buyer's. The number that matters is the cash that survives the handoff.

What the multiple is actually paying for

Now the second input: the multiple. Most people assume it is set by the industry, and the industry is the smallest part of it.

The multiple is set by risk. Specifically, it prices the buyer's answer to one question: will these earnings continue when the person who generated them is gone?

That question is not pessimism about the seller. Earnings that live in one person's relationships and judgment are not a feature of the business priced low, they are a structural defect in the asset.

This is where the same $300,000 of SDE splits into two very different prices.

• At 1.65x, an owner-dependent business sells for $495,000.
• At 3.5x, an owner-light business sells for $1,050,000.

The independence discount on that one business is $555,000, and it is set almost entirely by transferability. The earnings are identical; the risk attached to them is not.

A business priced near 1.65x runs through one person. The relationships, the pricing judgment, and the institutional knowledge all live in the owner's head, so a buyer prices in the real chance the earnings leave with them.

A business priced near 3.5x has a manager in place, documented operations, and customers who belong to the company. The work of building a business that runs without its owner is the same work that moves the multiple up.

Most real businesses sit somewhere in the middle, not at either end. A business with one documented system and a half-trained lead, but an owner who still closes every big sale, earns a multiple that reflects exactly that mixed picture.

That is the practical use of the range. Every owner-dependence you remove and every relationship you transfer moves the business a measurable step up the multiple, and a buyer prices each step.

This is the core of valuation that no calculator captures. The multiple is not a lookup; it is a measure of how much of the business is a transferable asset versus a personal one.

Run the residual test and the multiple explains itself. Strip out the seller's relationships, hours, and institutional knowledge, ask what still earns, and the fraction that survives is roughly the fraction of the top multiple a buyer will pay.

For an owner, that is the most useful thing on this page. The one input fully inside your control is the multiple, and preparing the business to sell is the work that raises it.

Why the asking price is almost always high

Start with the incentive, not the number. A broker is paid a percentage of the sale price, on close, which means their interest is a high number that transacts.

That does not make the asking price dishonest. It makes it a negotiating position, built from the seller's best-case earnings and the top of the multiple range.

Two moves inflate most asking prices, and both are visible once you know to look.

• The earnings are stacked. Every soft add-back the seller can argue for goes into SDE, because each dollar at a 3x multiple lifts the price by three.
• The multiple is borrowed. The number quoted is often the multiple a clean, owner-light business earns, applied to a business that still runs through one person.

Separate what you know from what you are being told. You know last year's revenue and the deposits in the bank; you are being told the add-backs are real and the earnings will transfer.

The gap between those two is the work of valuation. A disciplined buyer prices what is known and makes the seller prove the rest before paying for it.

This is also why two buyers can look at the same listing and value it $300,000 apart. One accepts the broker's inputs, and one converts them to buyer cash flow and reprices the multiple to the real risk.

How the negotiation moves the number

A valuation is not a verdict; it is your opening case in a negotiation. The asking price and your number are two ends of a range, and the deal settles where the evidence lands.

Your strongest argument is the conversion you already ran. When you can show that the earnings do not survive owner replacement and debt service, the multiple you offer follows the risk, not the listing.

Price is also only one term. Seller financing, an earnout, and the working-capital adjustment at closing all shift real value without touching the headline number, so negotiation is rarely about the price alone.

The structure of the deal, in other words, is part of the valuation. A lower price with a fragile structure can be worth less than a higher price with the seller carrying risk.

Verify the earnings before you trust the number

Everything above assumes the earnings figure is real. It is the single most expensive assumption a buyer can make, so it gets verified, not trusted.

Verification is the diligence layer between the seller's claim and your offer. It is what separates a number you can finance from a number you hope is true.

Sort every figure into three piles before you price it. There is what the books actually know, what the seller assumes, and what a projection infers but cannot prove, and diligence is the work of moving each line from assumed to known.

• Read the financials yourself. The story is in how to read a small business P&L, where margin trends and oddly clean expense lines tell you where to dig.
• Catch the weak books early. The patterns that signal trouble are visible before you commit, and spotting weak books before you sign an LOI saves you from pricing fiction.
• Run a quality-of-earnings review. For any deal of size, a quality-of-earnings review tests whether the stated profit holds up against bank statements and tax returns.
• Work a full diligence list. Everything you request and when you request it sits in the due-diligence checklist, so verification is a sequence, not a scramble.

86% of small business owners have no professional valuation or only a rough estimate. The same gap exists on the buy side, where many buyers accept the listing number and discover the real earnings only after closing.

The seller's marketing packet, the confidential information memorandum a broker sends, is the start of verification, not the end of it. Treat every figure in it as a claim awaiting evidence.

When the earnings survive that review, the multiple finally means something. Apply it before, and you are pricing a story.

Valuing your own business before a broker does

If you own the business rather than buy one, run the same lens on yourself. A buyer will, and the year you decide to sell is the worst time to discover what they see.

The exercise is the same. Convert your stated profit into the cash a buyer would actually keep, then ask how much of your earnings walk out the door with you.

Most owners never do this, which is why the listing price so often surprises them. Getting a real number on what your business is worth two or three years early is what gives you time to move it.

The buyer's process and the seller's process are the same arithmetic from opposite sides. The whole buyer's playbook for valuing and acquiring a business is the mirror image of preparing one to sell.

The advantage of running it early is time. A buyer values the business on the day they look, but an owner who values it three years out can still change the inputs the multiple reads.

That is the practical payoff of treating valuation as a method rather than a number. You stop asking what the business is worth and start asking which specific change moves the figure most.

You cannot improve a number you have not measured. The first step, on either side of the table, is an honest valuation you did not get from someone paid to close the deal.

Get your number

The free Keystone diagnostic gives you three scores and an estimated sale price, calibrated against 10 years of BizBuySell Insight Reports and 1.6M+ SBA 7(a) loan records. You see your real earnings, the multiple your business actually earns, and what is discounting it.

Get your three scores and an estimated sale price, free, at app.trykeystone.io.

From there the paid tiers run the full method. Keystone Core ($129/mo, $1,290/yr) tracks your valuation as you improve it, and Pro ($199/mo, $1,990/yr) adds the Deal Analyzer for buyers pricing a target deal by deal.

The newsletter covers one valuation or operating mechanic at a time, written for owners who want the number to move.

FAQ

How do you value a small business?

You value a small business by multiplying its verified earnings (usually SDE) by a market multiple set by risk and transferability. On a $300,000-SDE service business that multiple ranges from about 1.65x to 3.5x, a $555,000 swing, and the seller's stated profit must be converted into buyer cash flow before any of it holds.

How do you value a business based on cash flow?

You value a business on cash flow by starting with SDE and subtracting owner replacement cost, annual debt service, and working-capital needs, and what remains is the cash flow that actually supports a price. A profitable P&L can still leave very little of that cash.

What multiple do small businesses sell for?

Small service businesses commonly sell between 1.65x and 3.5x SDE, with the multiple set by how independent the business is of its owner. An owner-dependent business sits near the bottom of that range and an owner-light one near the top, a spread worth hundreds of thousands of dollars on identical earnings.

How do you value a business with no profit?

You value an unprofitable business on its assets, its revenue, or its strategic value to a specific buyer, not on an earnings multiple. Most small-business sales are priced on earnings instead, which is why verifying those earnings comes first.