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

Everybody who asks how to value a small business wants a formula, and here it is: earnings times a multiple. On the same earnings, the multiple alone can move the price by hundreds of thousands of dollars.

So the formula's the easy part. It's also where most valuations go wrong, because both inputs are softer than they look.

What you're really doing is one conversion. You turn the seller's reported profit into the cash a buyer actually keeps, then you price the risk that the cash doesn't survive the owner leaving. This post walks that conversion and points each piece to the article that goes deeper.

The method, start to finish

You value a small business by multiplying its real annual earnings by a market multiple. The earnings are the seller's discretionary earnings (SDE) after verification. The multiple reflects how independent and transferable the business is.

Neither input shows up clean. A broker hands you both, prefilled, and a broker's job is to close the listing. Defending the number to a skeptical buyer reading the books line by line is somebody else's problem.

The seller's number is built to be believed, because everyone paid on the sale gets paid more on a higher one. So you treat both inputs as things to verify, and that's the difference between a valuation and a guess.

Earnings first

Start with the earnings, because a multiple means nothing 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 get valued on one of two figures, depending on size and structure:

• SDE (seller's discretionary earnings): net profit plus the owner's salary, plus one owner's benefits, plus non-recurring and personal expenses. 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. The standard for bigger businesses that already pay a manager to run the floor.

They aren't interchangeable, and quoting the wrong one inflates or deflates the number. The difference between SDE and EBITDA has the full comparison, and what EBITDA actually measures has the plain definition.

SDE gets built by adding things back to net profit. Every dollar added back at a 3x multiple raises the price by three dollars, which is exactly why add-backs are the most fought-over line in any small-business deal.

A seller piles personal travel, a relative's no-show salary, and one-time costs into the figure. The add-backs a seller stacks onto SDE don't all survive a buyer's review. Before any multiple matters, you're deciding how much of the stated profit is real.

Turn seller profit into buyer cash

This is the step most valuation guides skip. The seller's profit and the buyer's profit are two different numbers, and the space between them is often the whole deal.

A buyer isn't purchasing last year's SDE. They're purchasing the cash that's left after they replace the owner, service the acquisition loan, and fund the business through its working-capital cycle.

Run one business through the whole walk: an owner-run commercial landscaping and snow-removal outfit with $440,000 of earnings on paper.

1. Start with verified SDE: $440,000. That's the figure after the add-backs have been checked, which is often lower than the seller's first number.
2. Subtract owner replacement cost. If the owner does $130,000 of work a manager must now be paid to do, real earnings to a new owner drop to $310,000, 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 it out of these earnings, and the annual payment can run $90,000 to $130,000 on a deal this size.
4. Account for working capital. The buyer has to fund payroll and receivables from day one, and the working capital you bring to closing is cash that doesn't come back quickly.

Now do the math. Take out $130,000 of replacement cost and $110,000 of debt service, and the $440,000 leaves roughly $200,000 of cash, before you've set aside a dollar for working capital.

And that remaining cash is what you're really buying. The price you can pay anchors to it, whatever the headline SDE on the listing says. Run it as a return: $200,000 is what's left to reward your own invested capital once the loan's paid, and on a deal this size that's thin, with working capital still not subtracted.

It's also why a profitable P&L can describe a business that hands its owner very little spendable cash. Why profit and cash flow aren't the same number decides whether the earnings can actually carry a loan.

What you're paying for in the multiple

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

Risk sets it. Specifically, it prices one question: will these earnings keep coming when the person who generated them is gone?

Earnings that live in one person's relationships and judgment are a structural defect in the asset, however good the seller is at the work, and the same $440,000 of SDE splits into two very different prices because of it:

• At 1.65x, an owner-dependent business sells for $726,000.
• At 3.5x, an owner-light business sells for $1,540,000.

The independence discount on that one business is $814,000, on identical earnings.

At the low end, the business runs through one person. The relationships, the pricing judgment, and the history all sit in the owner's head, so a buyer prices in the real chance the earnings leave with him.

At the high end there's 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 land somewhere in the middle. 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. Every dependence you remove moves the business a measurable step, and buyers price each step.

No calculator captures this part. Strip out the seller's relationships, hours, and know-how, ask what still earns, and the fraction that survives is roughly the fraction of the top multiple a buyer will pay.

If you're the owner, that's the most useful thing on this page. The multiple is the one input fully in your control, and getting the business ready to sell is the work that raises it.

Why the asking price runs high

Start with the incentive. A broker's paid a percentage of the sale price, on close, so their interest is a high number that actually transacts.

That doesn't make the asking price dishonest. It's a negotating position, built from the seller's best-case earnings and the top of the multiple range. Two moves inflate most of them:

• 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 what a clean, owner-light business earns, applied to one that still runs through one person.

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

That's why two buyers can look at the same listing and value it $300,000 apart. One takes the broker's inputs. The other converts them to buyer cash flow and reprices the multiple to the real risk.

The negotiation moves it too

Treat your valuation as your opening case. The deal settles where the evidence lands.

Your best argument is the conversion you already ran. If you can show the earnings don't survive owner replacement and debt service, the multiple you offer follows the risk you found.

And price is only one term. Seller financing, an earnout, and the working-capital adjustment at closing all shift real value without touching the headline, so a lower price with a fragile structure can be worth less than a higher one with the seller carrying risk.

Check the earnings before you trust any of it

Everything above assumes the earnings are real. That's the single most expensive assumption a buyer can make.

Sort every figure into three piles: what the books actually know, what the seller assumes, and what a projection infers but can't prove. Diligence is moving each line from assumed to known.

• Read the financials yourself. How to read a small business P&L shows where margin trends and oddly clean expense lines tell you to dig.
• Catch weak books early. The patterns are visible before you commit, and spotting weak books before you sign an LOI keeps you from pricing fiction.
• Run a quality-of-earnings review. On any deal of size, a quality-of-earnings review tests the stated profit against bank statements and tax returns.
• Work a full diligence list. What you request and when is laid out in the due-diligence checklist, so verification runs in a sequence.

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

The seller's marketing packet, the confidential information memorandum a broker sends, is where verification starts. Treat every figure in it as a claim waiting on evidence, and only apply the multiple once the earnings survive.

If it's your own business

Own the business instead of buying one? Run the same lens on yourself, because a buyer will, and the year you decide to sell is the worst time to find out what they see.

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

Most owners never do it, 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, since a buyer values the business on the day they look but an owner three years out can still change the inputs. And the whole buyer's playbook for valuing and acquiring a business is the same arithmetic from the other side of the table.

On either side, the first step is an honest valuation you didn't get from somebody paid to close the deal.

Getting your own number

Keystone's diagnostic is built for exactly that first step, and Keystone is closed for now while the build is finished. You can get on the waitlist at https://app.trykeystone.io.

Once it opens, 18 questions and about four minutes get you three scores and your value range with the most likely figure locked, calibrated against 10 years of BizBuySell Insight Reports and 1.6M+ SBA 7(a) loan records, so you see your real earnings, the multiple your business actually earns, and what's discounting it.

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

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 $440,000-SDE service business that multiple ranges from about 1.65x to 3.5x, a $814,000 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.