How to Value a Small Business: The Methods Buyers and Sellers Use
Whether you are buying a business, selling one or just want to know what you have built, you need a number you can defend. This explainer walks through the four methods used for established small businesses, shows the math on a worked example and explains why two buyers can look at the same company and offer very different prices.
Key takeaways
- Small owner-operated businesses are usually valued on a multiple of seller's discretionary earnings (SDE). Larger businesses with a management team are valued on a multiple of EBITDA.
- The multiple is where the judgment lives. It reflects risk: customer concentration, owner dependence, growth, industry and the quality of the records.
- Asset-based valuation sets a floor and matters most for businesses with little profit or lots of equipment and property.
- Discounted cash flow is the most rigorous method and the least used for small deals, because it depends on forecasts few small businesses can support.
Valuation is not an exact science and it is not a mystery either. For an established small business, the price almost always comes from one of four methods, and most of the time from the first two. This guide focuses on businesses that have been trading for years and make a profit: the café, the plumbing contractor, the accounting practice, the regional distributor. Early-stage startups with no earnings are valued differently and are not covered here.
One idea underlies all the methods: a business is worth the future cash it will produce for its owner, discounted for the risk that it will not. Every method is a shortcut to that number.
Method 1: Multiple of seller's discretionary earnings (SDE)
SDE is the total financial benefit one full-time owner-operator gets from the business in a year. It starts with pre-tax profit and adds back everything that is specific to the current owner or not part of normal operations:
- The owner's salary and benefits (one owner only)
- Interest, depreciation and amortization
- Personal expenses run through the business, such as a car, phone or travel
- One-off costs, such as a lawsuit, a move or a flood repair
- Non-cash items
SDE is the standard measure for businesses that a buyer will run themselves, typically those selling for under about $1 million to $2 million. Business brokers, marketplaces and lenders all speak this language.
Worked example: calculating SDE
Imagine a landscaping company with $900,000 of revenue and $60,000 of reported pre-tax profit. The owner pays herself $85,000 in salary, runs a $9,000 truck lease for personal use through the business, had $12,000 of depreciation and spent $8,000 on a one-time legal dispute. SDE = $60,000 + $85,000 + $9,000 + $12,000 + $8,000 = $174,000. That is the number a buyer would use, because it shows what the business generates for whoever owns and runs it.
Picking the multiple
Small businesses commonly sell for somewhere between roughly 2 and 3.5 times SDE, with the low end for businesses that depend heavily on the owner or have declining sales and the high end for businesses with strong systems, recurring revenue and growth. Some industries, such as established professional practices or businesses with contracts in place, can command more; others, such as restaurants, often sit at the lower end. BizBuySell's quarterly Insight Reports, drawn from businesses sold through its marketplace, have for years shown median sale-price-to-cash-flow multiples in the low-to-mid 2s. Treat all ranges as a starting point, and look at actual sold comparables in your industry and region if you can get them from a broker.
Using the example above, at 2.5 times SDE the landscaping company would be worth about $435,000. At 2.0 times it is $348,000; at 3.0 times it is $522,000. That $174,000 range is the entire negotiation, which is why the factors that move the multiple matter so much.
Method 2: Multiple of EBITDA
EBITDA is earnings before interest, taxes, depreciation and amortization. It is the right measure for businesses large enough to run without the owner, usually with a general manager in place and often above $1 million in earnings. The difference from SDE is that EBITDA assumes a market-rate salary for whoever runs the company, because a buyer at this size will hire a manager rather than do the job.
Adjusted EBITDA adds back the same personal and one-off items as SDE, but then subtracts a fair salary for management. In the landscaping example, if a competent general manager costs $75,000, adjusted EBITDA is $174,000 - $75,000 = $99,000. EBITDA multiples for small and lower-middle-market companies are higher than SDE multiples, often in the range of 3 to 6 times for businesses with earnings of a few hundred thousand to a few million dollars, because the business is less dependent on one person. On $99,000 at 4 times, the value is $396,000, in the same neighborhood as the SDE approach. The two methods should land close to each other when applied correctly, and large gaps usually mean an error in the add-backs or the salary assumption.
Common mistake
Applying an EBITDA multiple to SDE. A seller who sees "5x EBITDA" quoted for companies in their industry and multiplies their SDE by 5 will overvalue the business by the owner's salary times five. Match the multiple to the earnings measure it was derived from.
Method 3: Asset-based valuation
An asset-based valuation adds up what the business owns and subtracts what it owes. The simplest version is book value from the balance sheet. The more useful version is adjusted net asset value, where each asset is restated at what it is worth today: vehicles and equipment at market value rather than depreciated cost, inventory at what it can be sold for, receivables net of what will not be collected, and property at appraised value.
This method matters in three situations:
- The business makes little or no profit. If earnings are weak, the value of the assets may exceed any earnings-based number, and a buyer is effectively buying equipment and stock.
- The business is asset-heavy. Trucking, manufacturing, farming and businesses that own their premises often have asset values that set a floor under the price.
- Liquidation. If the business will be wound down, the question is what the assets fetch in a sale, minus the costs of selling them, which is usually far less than their value in a going concern.
For a profitable service business with few assets, the asset-based value is usually well below the earnings-based value. The difference is goodwill: the value of the customer relationships, reputation, systems and staff that make the assets produce more than they would on their own.
Method 4: Discounted cash flow (DCF)
DCF values a business directly on the principle behind all the other methods: forecast the cash it will generate each year, then discount each year's cash back to today at a rate that reflects the risk. Add a terminal value for the years beyond the forecast, and the sum is the business's value.
The method is rigorous and transparent, and it is the standard in corporate finance. For small businesses it is used less, for two practical reasons. First, a five-year forecast for a small company is mostly guesswork, and the result is very sensitive to the growth and discount rate assumptions. Second, buyers of small businesses think in multiples and will translate any DCF back into one anyway. Where DCF earns its place is in businesses with predictable contracted revenue, in disputes where a formal appraisal is needed, or as a cross-check on a multiple.
Worked example: a simple DCF cross-check
Suppose the landscaping company's adjusted EBITDA of $99,000 translates to about $80,000 of free cash flow after tax and equipment replacement, growing 3% a year. Using a 22% discount rate, which is in the range appraisers often apply to small private companies to reflect their risk, the present value of the next five years of cash flow is roughly $250,000, and a terminal value for the years after that adds roughly $150,000 in today's money. Total: about $400,000, consistent with the multiple-based estimates. Change the discount rate to 18% and the value rises to around $480,000, which shows how sensitive the method is.
What moves the multiple
Two businesses with identical SDE can sell for prices 50% apart. The table lists the factors that most often explain the difference.
| Factor | Pushes the multiple down | Pushes the multiple up |
|---|---|---|
| Owner dependence | Owner holds the key relationships and skills | Trained staff and documented systems run the business |
| Customer concentration | One customer is more than 20% of revenue | No customer above 10% |
| Revenue quality | Project-based, one-off sales | Contracts, subscriptions, repeat customers |
| Trend | Flat or declining revenue and margin | Three years of steady growth |
| Financial records | Cash sales, unreconciled books, large unexplained add-backs | Clean accountant-prepared statements and filed tax returns that match |
| Industry and location | Shrinking sector, lease about to expire, local competition rising | Growing sector, long lease or owned premises, defensible niche |
| Transferability | Licenses, contracts or suppliers tied to the owner personally | Everything assignable to a new owner |
Pro tip
Buyers discount add-backs they cannot verify. If you claim $20,000 of personal expenses as an add-back, be ready to show the receipts and explain each one. An add-back that is challenged and withdrawn costs you the amount times the multiple, so a $20,000 add-back at 2.5x is $50,000 of price.
How buyers and sellers actually arrive at a price
- Normalize three years of financials. Recast the profit and loss statement for each year, listing every add-back with evidence, and calculate SDE or adjusted EBITDA for each year. Weight recent years more heavily if the trend is clear.
- Pick the earnings measure. SDE for an owner-run business the buyer will operate; adjusted EBITDA for a business with management in place.
- Choose a multiple range from comparables. Ask a broker for sold comparables in the industry, or use published marketplace data, then place the business within the range using the factors above.
- Cross-check with assets. Calculate adjusted net asset value. If it is above the earnings-based value, that is the floor.
- Decide what is included. Most small business sales are asset sales that include equipment, inventory and goodwill but exclude cash and receivables, with working capital negotiated separately. Make sure both sides are valuing the same bundle.
- Consider structure. A seller note, an earn-out tied to future revenue or a transition period can bridge a gap between what the seller wants and what the buyer can finance. In the US, lenders under the Small Business Administration's 7(a) program will finance a large share of many small business purchases, which affects what buyers can pay.
When a multiple is enough
- Stable earnings over three or more years
- Plenty of comparable sales in the industry
- A buyer who will run or manage the business themselves
- A deal under a few million dollars
When you need more than a multiple
- Earnings are volatile or recently changed sharply
- The business owns significant property or equipment
- A formal appraisal is required for tax, divorce, partner buyout or litigation
- Revenue is contracted far into the future and worth modeling
Action checklist
- Recast the last three years of profit and loss statements and list every add-back with evidence
- Calculate SDE and adjusted EBITDA for each year
- Collect at least five comparable sales from a broker or marketplace data for your industry
- Score the business on each factor in the table and place it within the multiple range honestly
- Calculate adjusted net asset value as a floor
- Get a professional opinion from a business broker or an accredited appraiser before you buy, sell or sign anything
Tax treatment of a sale differs by country and by deal structure, and it affects what a seller actually keeps. In the US, the split of the price between asset classes in an asset sale changes the tax for both sides, and a stock sale is taxed differently again. Similar distinctions exist in the UK and elsewhere. Involve a tax advisor early, because a lower price with a better structure can leave more in your pocket than a higher one.
Frequently asked questions
Do I need a professional valuation?
For a sale, a broker's opinion of value is usually enough to set an asking price, and the market decides the rest. A formal appraisal by an accredited valuer is worth paying for when the number must stand up to scrutiny: tax authorities, courts, a partner buyout or a lender.
Why is my business worth less than the rule of thumb for my industry?
Rules of thumb such as "one times revenue" describe averages. The factors in the table above explain most deviations: owner dependence, customer concentration, weak records and declining trends all pull a business below the average, regardless of the industry.
Is revenue or profit more important?
Profit, specifically SDE or EBITDA. Revenue multiples are sometimes quoted for businesses with very consistent margins, but a buyer is paying for the cash they will receive, and a $2 million business with no profit is worth less than a $500,000 business making $150,000.
How does the valuation change if I stay on after the sale?
A transition period, typically a few months, is usually expected and already assumed in the multiple. A longer commitment, or an earn-out that pays part of the price only if revenue holds up, reduces the buyer's risk and can support a higher total price, but it also means part of your payment depends on the business performing under someone else's control.
Related reading
The bottom line
Established small businesses are valued on earnings: a multiple of SDE for owner-run companies and a multiple of adjusted EBITDA for those with management in place, with asset value as a floor and DCF as a cross-check. The earnings are arithmetic; the multiple is judgment, and it is driven by how risky and how transferable the cash flow looks. If you want a higher number, the path is clear: reduce owner dependence, spread the customer base, build recurring revenue and keep records a stranger could verify.
