How to Value Your Small Business for Sale

At some point, every business owner wonders: what is this thing actually worth?

Maybe you're thinking about selling. Maybe a partner wants to buy in. Maybe you just want to know if the years of work have built something with real financial value. Whatever the reason, you need a number, and "I feel like it's worth about $500K" isn't going to cut it.

Business valuation isn't magic. It's math. There are four main methods, and which one fits depends on your type of business, your industry, and why you're getting valued in the first place.

Method 1: SDE Multiple (The Most Common for Small Businesses)

SDE stands for Seller's Discretionary Earnings. It's the most widely used method for businesses under $5 million in revenue, and it's the one most buyers and brokers will start with.

How it works:

1. Start with your net income from your tax return or P&L
2. Add back the owner's salary and benefits
3. Add back one-time or non-recurring expenses
4. Add back non-cash expenses like depreciation and amortization
5. Adjust for any personal expenses run through the business
6. Multiply the result by an industry multiple

The formula: Business Value = SDE x Industry Multiple

Example: Your business shows $120,000 in net income. You pay yourself $85,000 in salary. You had $15,000 in one-time legal fees last year and $10,000 in depreciation.

SDE = $120,000 + $85,000 + $15,000 + $10,000 = $230,000

If your industry multiple is 2.5x, your business is worth roughly $575,000.

The multiple is where it gets interesting. It varies widely by industry.

Typical Industry Multiples (SDE)

Where you fall within the range depends on factors we'll cover below. A well-run plumbing company with recurring service contracts and strong reviews might command 3.0x. A struggling one dependent on the owner's personal relationships might barely get 1.5x.

Method 2: Revenue Multiple

This method values the business as a multiple of annual revenue rather than earnings. It's commonly used for businesses that are growing fast but may not yet be highly profitable.

Business Value = Annual Revenue x Revenue Multiple

Revenue multiples are smaller than SDE multiples because they don't account for profitability. A business doing $1 million in revenue at a 0.8x revenue multiple is worth $800,000, regardless of whether the business nets $200,000 or $50,000.

This method is more common for:

• SaaS and tech companies (where growth rate matters more than current profit)
• Businesses with thin margins but high revenue
• Early-stage companies with strong growth trajectories

For most traditional small businesses, the SDE multiple method gives a more accurate picture.

Method 3: Asset-Based Valuation

This method adds up everything the business owns and subtracts everything it owes.

Business Value = Total Assets - Total Liabilities

Assets include equipment, inventory, real estate, vehicles, accounts receivable, and cash. Liabilities include loans, accounts payable, and any other debts.

This method works best for:

• Asset-heavy businesses (manufacturing, real estate, equipment rental)
• Businesses being liquidated or wound down
• Companies with significant tangible assets but inconsistent earnings

The big limitation: it ignores the value of the business as a going concern. A trucking company with $500,000 in trucks and equipment might be worth far more than $500,000 because those assets generate $300,000 in annual profit. The asset value is the floor, not the ceiling.

Method 4: Discounted Cash Flow (DCF)

DCF projects the business's future cash flows and discounts them back to present value. It answers the question: what is the future income stream worth in today's dollars?

How it works:

1. Project cash flows for the next 3-5 years
2. Choose a discount rate (typically 15-30% for small businesses, reflecting the risk)
3. Calculate the present value of each year's projected cash flow
4. Add a terminal value for the business beyond the projection period
5. Sum it all up

Example: You project $100,000 in annual cash flow for 5 years, with a 20% discount rate.

• Year 1: $100,000 / 1.20 = $83,333
• Year 2: $100,000 / 1.44 = $69,444
• Year 3: $100,000 / 1.728 = $57,870
• Year 4: $100,000 / 2.074 = $48,225
• Year 5: $100,000 / 2.488 = $40,187

Total present value of cash flows: $298,959, plus terminal value.

DCF is the most theoretically rigorous method, but it relies heavily on projections. Optimistic projections give you a high valuation. Conservative ones give you a low one. The discount rate matters enormously too. A 5-percentage-point difference in discount rate can swing the valuation by 30% or more.

This method is most useful for businesses with predictable, recurring revenue, like subscription businesses or companies with long-term contracts.

What Buyers Actually Look At

Valuation formulas give you a starting point. But buyers dig deeper. Here's what moves the needle, for better or worse.

Things that increase your value:

• Recurring revenue (subscriptions, service contracts, retainers)
• Diversified customer base (no single customer represents more than 15% of revenue)
• Documented systems and processes
• A management team that can run things without the owner
• Consistent revenue growth over 3+ years
• Clean financial records (professionally prepared, not a shoebox of receipts)
• Strong online reviews and brand reputation

Things that decrease your value:

• Owner dependence. If the business can't function without you, buyers see risk. This is the single biggest value killer for small businesses.
• Customer concentration. If one client represents 40% of your revenue and they leave after the sale, the buyer just lost 40% of what they paid for.
• Declining revenue trends
• Deferred maintenance on equipment or facilities
• Pending legal issues or regulatory problems
• Handshake deals instead of written contracts
• Messy financials that require forensic accounting to understand

The Readiness Checklist

If you're thinking about selling in the next 1-3 years, start preparing now. Buyers pay more for businesses that are easy to evaluate and easy to transition.

Financial preparation:

• Get 3 years of tax returns and P&L statements in order
• Separate personal expenses from business expenses
• Resolve any outstanding tax issues
• Prepare a clear SDE calculation with documentation for every add-back

Operational preparation:

• Document your standard operating procedures
• Build a management layer so the business runs without daily owner involvement
• Secure written contracts with key customers and suppliers
• Address any deferred maintenance

Customer and revenue preparation:

• Diversify your customer base if it's too concentrated
• Convert one-time customers to recurring relationships where possible
• Focus on growing revenue, not cutting costs (buyers pay for growth)

Legal preparation:

• Make sure all licenses, permits, and intellectual property are current and transferable
• Resolve any pending lawsuits or disputes
• Review employee agreements and non-competes
• Confirm your lease is assignable or renegotiable

This checklist isn't just about getting a higher price. It's about being able to close the deal. Many sales fall apart during due diligence because the seller wasn't prepared. The buyer finds surprises, loses confidence, and walks away or demands a lower price.

Which Method Should You Use?

For most small businesses doing under $5 million in revenue, start with the SDE multiple method. It's what most buyers, brokers, and lenders use, and it gives you the most comparable data points.

If your business is asset-heavy, run an asset-based valuation as a floor. If your business has strong, predictable recurring revenue, a DCF analysis can support a higher valuation.

The smartest approach is to run all the methods and see where they converge. If the SDE method says $600,000, the asset method says $400,000, and the DCF says $650,000, you probably have a business worth somewhere in the $500,000-$650,000 range.

Get Your Number

Wondering what your business might be worth? Our free Business Valuation Calculator walks you through the SDE calculation, applies industry-specific multiples, and gives you a realistic range. No guesswork, no paying a broker $5,000 for a preliminary estimate. Plug in your numbers and see where you stand.