Business Valuation Calculator for Small Business

What This Calculator Does and Why It Matters

Knowing what your small business is worth is critical whether you are planning to sell, bring on a partner, apply for a loan, or simply want to understand the value you have built. Business valuation is part art and part science — but having a reliable ballpark figure puts you in a far stronger position during any negotiation or financial conversation.

This free calculator estimates your business value using three widely accepted methods: the Revenue Multiple, the EBITDA Multiple, and the Seller’s Discretionary Earnings (SDE) Multiple. It also shows an asset-based floor so you can see the full range of where your business might be valued depending on the buyer and the method used.

How to Use This Calculator

Step-by-Step Instructions

1. Enter your annual revenue, EBITDA, SDE, and net business assets where known.
2. Select an appropriate revenue multiple based on your business’s growth stage and profile.
3. Choose an EBITDA multiple that reflects your industry and profitability level.
4. Select an SDE multiple appropriate for the size and owner-dependence of your business.
5. Select your industry from the dropdown for context.
6. Click Calculate Valuation to see the valuation from each method.
7. Review the suggested range and the blended average across all three methods.

The Formula Explained

Each valuation method multiplies a financial metric by an industry-based multiple. The multiple reflects how much a buyer is willing to pay relative to the underlying earnings or revenue of the business. Higher multiples indicate stronger businesses with better margins, growth, or recurring revenue.

Breaking Down the Formula

Revenue Multiple Valuation = Annual Revenue × Revenue Multiple. EBITDA Multiple Valuation = EBITDA × EBITDA Multiple. SDE Multiple Valuation = SDE × SDE Multiple. SDE is EBITDA plus the owner’s compensation and personal benefits run through the business, since a new owner would recapture this value.

For an authoritative overview of how business valuation works, Investopedia’s business valuation guide covers the major approaches used by professionals including discounted cash flow and comparable transactions.

Example Calculation with Real Numbers

A plumbing services business has annual revenue of $600,000, EBITDA of $120,000, and SDE of $160,000. Using a 1× revenue multiple = $600,000. Using a 3× EBITDA multiple = $360,000. Using a 2.5× SDE multiple = $400,000. The blended average of all three methods is approximately $453,333. A buyer would likely offer somewhere in the $350,000–$450,000 range depending on their due diligence.

When Would You Use This

Real Life Use Cases

Business owners use this calculator to prepare for a sale, understand how much to ask for before listing with a broker, or check whether their business has hit a valuation milestone. It is also useful for buy-sell agreements between partners, estate planning, and conversations with investors or lenders who need to understand business worth.

Specific Example Scenario

A marketing agency owner is considering selling after 8 years. She has annual revenue of $1.2M, EBITDA of $300,000, and SDE of $350,000. Running this calculator with a 3× EBITDA and 3× SDE multiple gives her a range of $900,000 to $1,050,000 — helping her set a realistic asking price before approaching a business broker.

Tips for Getting Accurate Results

Use the Right Multiple for Your Business Type

Multiples vary enormously by industry. A SaaS business with recurring monthly revenue might command 5–8× EBITDA, while a sole-trader service business might only get 2–2.5× SDE. Research recent sales of comparable businesses in your industry on platforms like BizBuySell, which publishes median sale price multiples by industry sector regularly.

Clean Up Your Financials Before Valuing

Personal expenses, irregular payments, and one-off items distort the picture. Add back legitimate owner benefits when calculating SDE, and remove one-time costs from EBITDA. Buyers and brokers will scrutinize your books, so your valuation will be much more credible if it is based on clean, normalized financials.

Consider the Asset Floor

No rational buyer will pay less than the liquidation value of the business’s net assets. Enter your net assets in the calculator to establish this floor. If your earnings-based valuation is lower than your asset value, the business may be worth more in a liquidation than as a going concern — an important signal for your strategy.

Frequently Asked Questions

What valuation method is most accurate for small businesses?

There is no single most accurate method. Most buyers and brokers use SDE multiple as the primary method for small owner-operated businesses, EBITDA multiple for larger businesses with staff and systems, and revenue multiple as a secondary check. Using all three together gives you a credible range rather than a single number you can over-rely on.

What is a typical small business valuation multiple?

For most Main Street small businesses, SDE multiples of 2× to 3× are common. EBITDA multiples of 3× to 5× apply to slightly larger businesses. Revenue multiples of 0.5× to 1.5× are typical for service businesses, while SaaS or tech businesses can exceed 3× revenue. These ranges shift with economic conditions and industry trends.

What is SDE and why is it used for small business valuation?

Seller’s Discretionary Earnings (SDE) is the total financial benefit an owner-operator receives from the business — including salary, profits, and personal expenses run through the business. It is used because it represents the full economic reward for running the business, which is what a new owner-operator would look at when evaluating a purchase.

Does a business valuation include the property or building?

In most cases, real property is valued and sold separately or not at all. The business valuation typically covers goodwill, equipment, inventory, and intangible assets. If a building is owned by the business, it may add to net assets but is usually treated as a separate real estate transaction in any sale.

How do I increase my business’s valuation before selling?

The most effective ways to improve valuation include increasing recurring revenue, reducing owner dependence by building a capable management team, diversifying your customer base so no single customer accounts for too much revenue, and improving profit margins. Even small improvements in EBITDA compounded by a good multiple can significantly raise the asking price.

Do I need a professional valuation before selling?

For any business sale, a professional business broker or certified valuation analyst (CVA) can produce a formal valuation that will hold up to buyer scrutiny. This calculator gives you a reliable starting estimate, but a formal appraisal is advisable before entering serious negotiations or signing a letter of intent.

How does customer concentration affect business value?

If more than 20–25% of your revenue comes from a single customer, buyers will apply a discount because losing that customer would significantly harm the business. Diversifying your client base before selling can directly increase your multiple and final sale price.

What is an asset-based business valuation?

An asset-based valuation adds up the market value of all business assets (equipment, inventory, receivables, intellectual property) and subtracts all liabilities. This gives a liquidation floor — the minimum the business is worth. It is most commonly used for asset-heavy businesses like manufacturing or real estate rather than service businesses where value lies in cash flow and goodwill.

Conclusion

Valuing a small business requires looking at multiple angles — earnings, revenue, assets, and what comparable businesses have sold for in your market. This free calculator gives you a strong starting framework using three proven methods so you walk into any sale or financial conversation with realistic expectations.

Use these figures as the starting point for a conversation with a business broker, your accountant, or a potential buyer — not as a final number. The more accurate your financial inputs, the more useful your estimate will be.