Business Valuation by Multiple Calculator

Why this calculator never gives you a point estimate

Many valuation tools online will give you a single number: "your business is worth $1,247,000." That number is almost always wrong, often misleading, and occasionally dangerous. Multiples are ranges because deals happen across a range. The actual price your business will transact at depends on the buyer's financing terms, deal structure, strategic fit, local market conditions, and dozens of details no calculator can know.

What a calculator CAN do — and what this one tries to do well — is produce a defensible range based on industry-typical multiples and your own quality factors. Stronger quality factors push the multiple toward the upper end of the industry range; weaker factors push toward the lower end. The output is still a range, but a tighter, more useful one.

The formula

Valuation range = Earnings × Multiple range

Two choices drive the math:

1. Which earnings metric? SDE (Seller's Discretionary Earnings) for owner-operator businesses under about $5M revenue. EBITDA for larger businesses with professional management. Different metrics have different multiple ranges, so picking the right one is the first decision.
2. Which multiple? Industry-typical ranges are wide because they cover deals at every quality level. Your quality factors determine where in the range your business sits.

Industry multiple ranges

For owner-operator businesses under $5M revenue, typical SDE multiples by industry:

• Professional services: 2.0x to 3.5x SDE
• Construction and trades: 1.8x to 3.0x SDE
• Manufacturing: 2.5x to 4.0x SDE
• Retail: 1.5x to 2.8x SDE
• Restaurants: 1.5x to 2.5x SDE
• E-commerce: 2.0x to 4.0x SDE

For larger businesses with professional management, EBITDA-based multiples typically run 3-6.5x depending on industry — wider for asset-backed manufacturing, tighter for service businesses. The calculator above includes both metrics and shows the range for your industry.

The five quality factors

1. Customer concentration

What percentage of revenue comes from your top customer? Anything over 40% raises significant buyer concern — losing one customer could be catastrophic. Below 20% is healthy and pulls the multiple toward the upper end. Diversification matters more than absolute revenue size in many deals.

2. Revenue growth (3-year trend)

Strong growth (15%+ per year) commands a meaningful premium — buyers pay for momentum. Modest growth (5-15%) is healthy. Flat or declining revenue is a serious headwind that pushes multiples to the bottom of the range. The 3-year window matters: one good year doesn't establish a trend.

3. Revenue type

Recurring revenue — subscriptions, retainers, contracted services — is the gold standard because it's predictable. Transactional or project-based revenue is harder to value because it requires constant business development. Mixed revenue is in between. SaaS-style recurring revenue can lift multiples 1-2 turns above industry typical.

4. Owner dependence

If the business depends heavily on the current owner — for customer relationships, technical knowledge, or daily decisions — the buyer is taking on transition risk. Low owner dependence (well-systematized operations, documented processes, customer relationships held by team members) lifts multiples. High owner dependence pulls them down because the buyer has to figure out how to replace the owner's role without losing customers.

5. Margin trend

Improving margins suggest operational excellence and pricing power — both lift multiples. Declining margins suggest competitive pressure or rising costs that the buyer will inherit. Flat margins are neutral.

A worked example

A professional services business with $300K in SDE. The industry-typical multiple range is 2.0x – 3.5x, giving a broad valuation range of $600K to $1.05M.

Now apply quality factors:

• Customer concentration: 25% top customer (moderate, neutral)
• Revenue growth: 12% per year (modest, neutral)
• Revenue type: 60% recurring contracts (mixed, neutral)
• Owner dependence: moderate (neutral)
• Margin trend: improving (good)

Quality score: 6 of 10 (one strong factor, four neutral). That positions the multiple in the middle-upper part of the range. Adjusted range: roughly 2.4x – 3.1x SDE, or $720K to $930K.

The narrowed range tells you where similar businesses with similar quality typically transact. Whether your specific deal closes at $750K or $900K depends on the buyer, financing terms, and how negotiation goes.

Common mistakes

1. Treating the calculator output as a target price. The output is a starting frame. Your asking price depends on negotiating posture, market timing, and whether you're a willing or motivated seller. Don't list at the top of a calculator's range expecting to transact there.
2. Using the wrong earnings metric. SDE for owner-operator businesses, EBITDA for larger professionally-managed ones. Mixing them up gives you an answer that's in a different universe from where deals actually happen.
3. Skipping the earnings validation. The multiplier is moot if your earnings number is wrong. A Quality of Earnings (QofE) report from a CPA before listing tightens the earnings figure the same way a buyer's diligence would. Saves time and renegotiation later.
4. Ignoring quality factors that pull down. High customer concentration, declining margins, and high owner dependence are addressable. Working on them 12-24 months before listing can shift the multiple range up by half a turn or more — which is real money.
5. Forgetting that buyers are also doing this math. A sophisticated buyer is thinking through the same quality factors with their own scoring. If your view of the multiple is dramatically different from theirs, negotiation gets hard. Going in with a defensible range built on the same factors saves friction.

FAQ

What about asset-based or DCF valuation?

For most small businesses, multiple-based valuation is the dominant approach because it reflects how deals actually happen. Asset-based valuation is more relevant for asset-heavy businesses being liquidated. Discounted cash flow (DCF) is more relevant for businesses with predictable long-term cash flows and substantial capital structure decisions. For owner-operator businesses up to $5-10M revenue, multiple-based is the buyer's default.

Do these multiples include working capital?

Typically no. Most small business deals are "cash-free, debt-free with normalized working capital" — meaning the buyer expects the business to come with enough working capital to operate (target working capital), and any excess goes to the seller. Net debt is paid off at close. Real deal structures vary; this is where a broker or M&A advisor adds significant value.

What if my business is at the boundary between SDE and EBITDA?

Run both. For businesses in the $3-7M revenue range, buyers may evaluate both metrics depending on whether the owner is operationally critical or whether there's a professional management layer. The two views should converge — if they don't, that gap itself is a useful diagnostic about how the owner is positioned in the business.

How accurate are the multiple ranges?

The ranges are based on small-business broker market data, and are flagged as preview values to be replaced with sourced figures from BizBuySell, IBBA Pratt's Stats, and similar databases before public launch. For any specific deal, the actual multiple depends on factors no calculator can capture. Treat this output as a frame for a conversation, not a prediction.

Should I get a formal valuation?

For most small business sales, a broker's opinion of value is sufficient and far less expensive than a formal appraisal. Formal valuations (from a Certified Valuation Analyst or ASA) are warranted for legal proceedings, partner buyouts, divorces, estate planning, or larger transactions where defensibility matters. Either way, this calculator gives you a frame to walk into those conversations informed.