5 Methods of Valuation Every Business Buyer Should Know
When you buy a small business, the number you agree to pay is the single decision that most determines your return. Overpay and even a great business can take years to earn back. Buy well and an ordinary business can hand you a strong return from the first day you own it.
The problem is that there is no single correct value for a business. There are only methods, each looking at the same company from a different angle. Professional buyers do not pick one and stop. They run two or three, see where the numbers converge, and use the gaps to ask better questions.
This guide covers the five valuation methods that actually matter when you are buying an owner-operated business, the same ones we use every day when we screen deals. For each one you get the logic, a worked example with real numbers, and when to reach for it.
The five methods at a glance
Most small-business valuation comes down to five approaches. The first two are the workhorses for owner-operated companies. The other three help you sanity-check the number and understand the floor and the upside.
| Method | What it measures | Best for |
|---|---|---|
| SDE multiple | Total owner benefit times a multiple | Owner-run businesses under about $5M |
| EBITDA multiple | Operating profit times a multiple | Larger, manager-run businesses |
| Comparable transactions | What similar businesses actually sold for | Any deal with recent comps |
| Asset-based | Assets minus liabilities | Asset-heavy or distressed businesses |
| Discounted cash flow | Present value of future cash flow | Stable or growing cash generators |
One note before the methods: every one of them runs on clean earnings. Before you apply any multiple, you have to normalize the financials, and that is where most buyers go wrong. We cover exactly how at the end of this guide.
Method 1: Seller's Discretionary Earnings (SDE) multiple
SDE is the workhorse for owner-operated businesses, and it is the number you will see most often on listings under a few million dollars. It captures the total financial benefit the business delivers to a single owner-operator.
You calculate it by starting with net profit and adding back:
- The owner's salary and any above-market compensation
- Owner perks and personal expenses run through the business
- Interest, taxes, depreciation, and amortization
- One-time or non-recurring expenses
Worked example. A landscaping company reports $180,000 in net profit. The owner pays himself a $90,000 salary, runs a $12,000 personal vehicle through the business, and had a one-time $18,000 legal expense last year. SDE is 180,000 + 90,000 + 12,000 + 18,000 = $300,000. At a typical multiple of 2.5x to 3.5x for this kind of business, the value lands between $750,000 and $1,050,000.
SDE multiples for small businesses usually run 2x to 4x, with cleaner, more systematized, less owner-dependent businesses earning the higher end. The single biggest driver of the multiple is how much the business depends on the current owner. A business that runs without the owner is worth far more than one that is the owner.
Method 2: EBITDA multiple
As businesses get larger and shift from owner-operated to manager-run, buyers move from SDE to EBITDA: earnings before interest, taxes, depreciation, and amortization. The key difference is that EBITDA does not add back an owner's salary, because a business of this size is expected to pay a professional manager to run it.
EBITDA equals net profit plus interest, taxes, depreciation, and amortization.
Worked example. A regional services business earns $1,200,000 in EBITDA after paying a general manager $150,000. Businesses of this size and quality commonly trade around 5x to 6x EBITDA, putting the value between $6,000,000 and $7,200,000.
As a rough rule, businesses transition from SDE-based to EBITDA-based pricing somewhere around $1M to $2M in earnings, or once there is a real management layer in place. Larger businesses command higher multiples because they carry less owner-dependence risk and are easier to finance.
Method 3: Comparable transactions
Comparable transactions, or comps, value a business by looking at what similar businesses actually sold for recently. It is the closest thing to a market price, because it reflects real deals that closed rather than theory.
To build a useful comp set, match on:
- Industry and business model
- Size, measured by revenue and earnings
- Geography and customer type
- Growth and margin profile
You then take the median multiple those businesses sold at and apply it to your target. The catch is data. Small private transactions are not public, so buyers rely on broker databases, industry reports, and the deal flow they see themselves. This is one reason we publish a fully analyzed deal every day: seeing real asking prices and earnings across a category is how you build an instinct for what a fair multiple actually is.
Reality check: asking prices are not market values. Many listings are priced 20% to 50% above what they actually close for. Comps keep you anchored to reality instead of the seller's ask.
Method 4: Asset-based valuation
Asset-based valuation sets a company's worth at the fair market value of its assets minus its liabilities. For most healthy operating businesses this is not the method you price on, but it tells you something important: the floor.
- Book value uses the balance sheet, useful for stable, asset-heavy businesses.
- Liquidation value assumes a forced sale, the realistic floor for a distressed business.
- Replacement cost asks what it would cost to rebuild the business from scratch.
Worked example. A small manufacturer has $600,000 of equipment and inventory at fair market value and $150,000 of debt. Its net asset value is $450,000. If the business is only barely profitable, that $450,000 is roughly the floor a buyer would pay, regardless of what an earnings multiple suggests.
Asset-based methods work well for real estate, manufacturing, and equipment-heavy businesses, and they set a floor for any deal. They badly undervalue service businesses, whose real worth sits in cash flow, customer relationships, and brand, none of which appear on a balance sheet.
Method 5: Discounted cash flow (DCF)
DCF is the most rigorous method. It values a business on the cash it will generate in the future, discounted back to what that future cash is worth today. It is the right tool when a business is stable enough to forecast, or is growing in a way a simple multiple does not capture.
The mechanics: project free cash flow for five to ten years, estimate a terminal value for everything after that, and discount it all back using a rate that reflects the risk. That discount rate is where DCF gets subjective, and small changes in your growth and rate assumptions swing the answer a lot. That sensitivity is exactly why, on small deals, DCF is a supplement to a multiple rather than a replacement for it.
If you want to build one properly, we walk through it step by step in our discounted cash flow modeling guide.
DCF rewards durable, predictable cash flow and punishes uncertainty, which is why it suits mature businesses and overreaches on young or volatile ones.
Which method should you use?
You do not choose one. You triangulate.
| Method | Use it for | Reliability |
|---|---|---|
| SDE multiple | Quick price on owner-run businesses under about $5M | High for small deals |
| EBITDA multiple | Larger, manager-run businesses | High for mid-market |
| Comparable transactions | Anchoring to real market prices | High when comps exist |
| Asset-based | Establishing the floor | High for assets, low for a going concern |
| DCF | Testing intrinsic value and growth | High only with good assumptions |
In practice: lead with an SDE or EBITDA multiple for a fast read, check it against recent comparable transactions, use asset value to set the floor, and run a DCF when the business is stable enough that a forecast means something. When the methods converge, you have a defensible range. When they diverge, that gap is telling you where the risk is.
The step that matters more than the method: normalizing earnings
Every method above runs on an earnings number, and the raw figure on a tax return is almost never the right one. Before you apply any multiple, adjust the financials to reflect what the business will actually earn under you:
- Add back the owner's above-market pay and personal expenses
- Strip out one-time and non-recurring items
- Remove related-party deals that will not continue
- Add in costs a new owner will actually carry, such as a manager's salary if the seller worked in the business for free
The single most expensive valuation mistake is applying a multiple to unadjusted earnings. Get the earnings number right and an average method gives you a good answer. Get it wrong and the most sophisticated DCF in the world just gives you a precise wrong answer.
Common valuation mistakes to avoid
- Relying on one method. Each has blind spots. Triangulate across two or three.
- Trusting the asking price. It is a starting point for negotiation, not a value.
- Skipping quality of earnings. One-time revenue and hidden costs distort every multiple.
- Ignoring owner dependence. A business that cannot run without the seller earns a lower multiple, full stop.
- Forgetting working capital. Confirm the deal includes enough working capital to run the business the day after closing.
Put it to work
Valuation is part discipline and part judgment. The methods give you the discipline. The judgment comes from seeing enough real deals that you recognize a fair multiple when it is in front of you.
That is what we do for you every day. Our team screens hundreds of businesses for sale, normalizes the numbers, and publishes a full valuation writeup on the most interesting one. You can study today's Deal of the Day for free, or read our full guide on how to buy a small business to see where valuation fits into the wider process.
Frequently Asked Questions
What is the most common way to value a small business?
For owner-operated businesses under about $5 million, the most common method is an SDE multiple: total seller's discretionary earnings times a multiple, usually between 2x and 4x. Larger, manager-run businesses are typically valued on an EBITDA multiple instead. Both should be cross-checked against recent comparable transactions.
What multiple do small businesses sell for?
Most small owner-operated businesses trade between 2x and 4x SDE, and larger businesses commonly trade in the range of 4x to 7x EBITDA. The exact multiple depends on size, industry, growth, margins, and above all how dependent the business is on the current owner. Less owner dependence earns a higher multiple.
What is the difference between SDE and EBITDA?
SDE adds the owner's salary back into earnings because it measures the total benefit to a single owner-operator. EBITDA does not add back an owner's salary, because it assumes the business pays a professional manager. SDE is used for smaller owner-run businesses, EBITDA for larger ones with a management layer.
Why do valuation methods give different answers?
Each method measures a different thing. Multiples reflect current market pricing, DCF reflects future cash generation, and asset-based methods reflect tangible value. Some spread between them is normal and useful: it shows you the floor, the market price, and the intrinsic value, and the gaps point you to where the risk and the upside sit.
What is the biggest mistake buyers make when valuing a business?
Applying a multiple to unadjusted earnings. Most small businesses carry owner-specific pay, personal expenses, and one-time items that distort reported profit. Normalize the financials first so you are valuing what the business will actually earn under new ownership, then apply your multiple.