How to Value a Small Business (SDE, Multiples & the Numbers That Matter)
You found a listing. The broker says it’s priced at $450,000. The seller is motivated. Before you structure anything — before you talk seller financing, before you mention a leaseback, before you draft a letter of intent — you need to answer one question: is that number real?
This article is your first-principles guide to small business valuation. We’ll walk through the two main earnings metrics (SDE and EBITDA), how multiples actually work in the sub-$5M market, how to build your own numbers from scratch, and the red flags that separate a deal from a trap.
- SDE (Seller’s Discretionary Earnings) is the right metric for owner-operated businesses under $5M — it includes the owner’s salary added back.
- EBITDA is used for businesses with hired management. It does not add back owner comp.
- Most small businesses trade at 2–4x SDE. Recurring-revenue businesses command 5–7x and attract more competition.
- A “golden ratio” first screen: SDE should be 15–35% of asking price for the deal to pencil as a cash-flowing acquisition.
- Messy books reduce the buyer pool, which can work in your favor if you can verify the numbers yourself.
- Paying full asking price in exchange for favorable terms (seller financing, extended earnout) is often the smartest play.
SDE vs EBITDA: Two Different Questions
When a business owner hands you a P&L, the headline net income number is almost never what the business actually earns for its owner. You need to recast the financials.
SDE — Seller’s Discretionary Earnings
SDE answers the question: what would this business put in the pocket of a single full-time owner-operator?
The formula is:
SDE = Net Income + Owner’s Salary + Add-Backs
Add-backs are legitimate business expenses that benefit the current owner but won’t apply to you:
- Owner’s W-2 salary (or draw)
- One-time expenses (a lawsuit settlement, a roof repair, equipment the owner bought for personal use but ran through the business)
- Depreciation and amortization
- Interest on existing debt (which goes away when you buy the assets)
- Non-recurring marketing spend or consultant fees
- Personal perks run through the business (car lease, phone, travel)
When to use SDE: Any business under $2–3M in revenue where the owner is the main operator. Retail, laundromats, carwashes, small service firms, restaurants. This is the standard metric at the Main Street deal level.
EBITDA — Earnings Before Interest, Taxes, Depreciation & Amortization
EBITDA answers a different question: what does this business earn assuming professional management is already in place?
EBITDA = Net Income + Interest + Taxes + Depreciation + Amortization
Notice what EBITDA does not include: the owner’s salary is already gone because you’re assuming a hired CEO or manager is running the business. That means EBITDA is typically lower than SDE for owner-operated companies.
When to use EBITDA: Businesses above $3–5M in revenue with an existing management team, or any deal where you plan to step in as a passive investor on day one. Private equity uses EBITDA. Middle-market deals ($5M–$50M enterprise value) use EBITDA. If you’re buying a small business and the broker is quoting EBITDA multiples on a one-person operation, push back — they’re making the deal look cheaper than it is.
Quick test: Ask the seller what their job is in the business. If they answer “I run everything,” the right metric is SDE. If they say “I have a GM and three managers and I come in twice a week,” EBITDA may be appropriate — but verify that the management team stays post-close.
What Multiples Mean (And Why They Vary)
Once you have a clean earnings number, the business is priced as a multiple of it. The multiple reflects:
- Risk: how likely those earnings are to continue under new ownership
- Effort: how much the business depends on the current owner’s specific relationships or skills
- Revenue quality: one-time revenue vs. recurring monthly contracts
- Competition among buyers: how many buyers are looking at this type of deal
Typical ranges in the sub-$5M market
| Business type | Typical multiple | Why |
|---|---|---|
| Single-location, owner-dependent | 1.5–2.5x SDE | High key-person risk, illiquid |
| Established service business (5+ years) | 2.5–3.5x SDE | Stable but owner-reliant |
| Business with systems & employees | 3–4x SDE | Transferable, lower key-person risk |
| Subscription / recurring revenue (SaaS, membership) | 5–7x SDE/EBITDA | Predictable cashflow, strong buyer demand |
| Franchise resale | 2–3x SDE | Built-in systems, but royalties reduce margin |
Recurring revenue sounds great — but it attracts competition. A SaaS tool or gym with membership contracts trading at 5–7x SDE will have sophisticated buyers and may require a larger down payment. Boring businesses (carwashes, laundromats, HVAC companies, cleaning services) at 2–3x SDE are less competitive precisely because they look less exciting. That’s often a feature, not a bug.
The Golden Ratio: Your First-Screen Filter
Before building a full model, educator Ben Kelly popularized a quick first screen: SDE should be 15–35% of the asking price.
That means: if a business is listed at $500,000, you want to see SDE of at least $75,000 (15%) and ideally closer to $125,000–$175,000 (25–35%).
- Below 15%: the business is priced at more than 6–7x SDE. That’s private equity territory, and you’re likely overpaying for the scale of deal.
- Above 35%: SDE is more than 35% of asking price, meaning you’re paying under 3x. That deserves a closer look — either it’s a great deal, or there’s a problem the seller isn’t disclosing.
This ratio won’t replace a full Quality of Earnings (QoE) analysis, but it screens out non-starters in 30 seconds on a listing page.
The Math Check: Building the Numbers Yourself
Never accept a seller’s stated SDE without reconstructing it from raw financials. Here’s the sequence:
- Request three years of tax returns (not just the most recent P&L)
- Request three years of bank statements — match deposits to reported revenue
- Identify every owner add-back and ask: is this truly non-recurring, and will it not apply to me?
- Normalize revenue: strip out any one-time contracts, government grants, or anomalous years (like a COVID-era PPP windfall)
- Build your own earnings statement line by line
Messy books reduce your competition. If the bookkeeping is inconsistent or the seller can’t produce three years of tax returns, most buyers walk — including SBA-backed buyers, because SBA lenders require clean documentation. That means you may be the only buyer at the table. Messy books aren’t automatically a dealbreaker; they’re a negotiating lever — and a reason to pay less or demand better terms. See our guide to Quality of Earnings due diligence for the full process.
Seller’s stated numbers
- Asking price: $450,000
- Seller claims: “We make $150,000 a year”
Step 1 — Reconstruct SDE
| Item | Amount |
|---|---|
| Net income (from tax return) | $62,000 |
| Owner’s W-2 salary | + $75,000 |
| Owner’s truck (personal use, on books) | + $8,400 |
| One-time equipment repair (non-recurring) | + $6,200 |
| Depreciation | + $4,100 |
| Interest on existing line of credit | + $3,300 |
| Reconstructed SDE | $159,000 |
Step 2 — Golden ratio check
- $159,000 ÷ $450,000 = 35.3% — passes the first screen
Step 3 — Implied multiple
- $450,000 ÷ $159,000 = 2.83x SDE
- At 2.83x for a 12-year-old established service business with two employees: reasonable
Step 4 — Payback period
- At $159,000 SDE, you recover the purchase price in ~2.8 years before debt service
- After a 30% seller note at 6% over 5 years (~$2,700/month) and working capital reserve: estimated year-1 cash-to-pocket ≈ $95,000
Verdict: deal pencils at asking — but push for terms
Paying $450,000 with 100% seller financing, a 12-month interest-only period, and a small earnout tied to year-1 revenue retention changes the risk profile dramatically. You’re buying the same asset at the same price with much less day-one exposure.
When to Pay Full Asking Price
This sounds counterintuitive, but Pace Morby’s documented example makes the logic clear: he paid more than asking price for a $5M RV park because the seller needed specific terms (low interest, monthly payments, no bank involvement). Morby got $20,000/month net cashflow with zero bank qualification because he prioritized the seller’s emotional need over the price.
The principle: price and terms are a trade-off. If you can get 100% seller financing, an interest-only period, or a deferred earnout structure, paying full asking price can be entirely rational.
Where this matters most:
- Seller financing: a seller who fully finances the deal has accepted the risk that you won’t default. They almost certainly won’t do that and discount the price. Pick one.
- Earnouts: paying full price now in exchange for a portion held in escrow pending year-1 performance protects you against misrepresented numbers.
- No bank = no SBA requirements: a deal structured entirely between you and the seller requires no third-party approvals, no asset tests, no personal guarantee review.
For a deeper look at how to structure the conversation with a seller, see our guide to seller financing.
“Seller financing happens for 60% of all small businesses that are bought — it’s super common.” — Codie Sanchez, Contrarian Thinking
How Valuation Connects to Creative Finance
Getting the valuation right is not just an academic exercise — it determines which financing structures are available to you.
- Deals priced at 3–4x SDE with strong cashflow can support a seller note and conventional commercial debt, because the earnings cover two debt obligations comfortably.
- Deals at 2x SDE may have enough margin to survive even an aggressive capital stack (equipment loan + seller note) with room left for operations.
- Deals priced above 5x SDE for non-recurring revenue businesses are thin — any deal structure that involves debt payments will eat the margin and leave you scrambling in year two.
If the business owns its real estate, the valuation picture changes entirely. A sale-leaseback can unlock capital embedded in the property to fund part or all of the acquisition — independent of the business earnings multiple.
For sourcing deals where the numbers are more buyer-friendly before they hit the open market, see our guide to finding off-market deals.
And if you want to understand how no-money-down structures work once you have a validated valuation, start with no money down acquisitions.
Quality of Earnings: Don’t Skip It
A QoE (Quality of Earnings) report is a third-party analysis of the financial statements, usually performed by a fractional CFO or boutique accounting firm (not a Big 4, which would charge $50,000–$150,000 for a deal this size).
For deals under $2M, a boutique QoE report typically costs $3,000–$15,000 and takes two to four weeks. It validates:
- Are the add-backs legitimate?
- Is revenue actually recurring, or was year three anomalously good?
- Are there any off-book liabilities (lawsuits, unfiled payroll taxes, deferred maintenance)?
- Do the bank statements match the tax returns?
Think of the QoE as your insurance policy. If the deal falls apart after the QoE, you saved yourself from a bad acquisition. If it holds up, you now have documentation that supports your LOI valuation — and a clean file if you ever need to bring in a lender or partner.
See our full breakdown at due diligence and quality of earnings.
Frequently Asked Questions
What is SDE in business valuation?
SDE stands for Seller’s Discretionary Earnings. It’s the total economic benefit a single full-time owner-operator extracts from a business in a year. It equals net income plus the owner’s compensation (salary, benefits, perks) plus non-cash charges (depreciation, amortization) plus one-time or non-recurring expenses. SDE is the standard earnings metric for Main Street businesses under $3–5M in revenue.
What multiple should I pay for a small business?
Most owner-operated small businesses with $100,000–$500,000 in SDE trade between 2x and 4x SDE. The lower end (2–2.5x) applies to high-risk, owner-dependent businesses or those with declining revenue. The higher end (3.5–4x) applies to businesses with systems, trained employees, contracts, and consistent multi-year performance. Recurring-revenue businesses (subscriptions, memberships, SaaS) can command 5–7x but also attract more competitive buyers.
What is the difference between SDE and EBITDA?
SDE adds the owner’s salary and personal benefits back into earnings, making it the right metric when the buyer will replace the owner. EBITDA does not add back owner compensation — it assumes a professional management team is already in place and fully costed. EBITDA is the right metric for businesses with hired management, or for middle-market deals where you’re buying a platform, not a job.
How do I verify the seller’s numbers?
Request three years of business tax returns and three years of bank statements. Match bank deposits against reported revenue for each month. Build your own SDE from scratch rather than accepting the seller’s add-back schedule at face value. If there are large discrepancies or the seller can’t produce tax returns, treat that as a red flag and either walk away or price it into a lower offer.
Why do messy books sometimes favor the buyer?
Most buyers — and all SBA lenders — require clean financials, a minimum of two to three years of documented history, and reconciled books before they’ll approve a deal. A business with inconsistent bookkeeping loses access to those buyers. If you can independently verify the underlying cash flows (bank statements, POS system exports, payroll records), you may be negotiating with one buyer instead of fifteen. That translates directly into price reductions, seller financing willingness, and more favorable terms.
When does it make sense to pay full asking price?
When the seller will fully finance the deal in exchange for their price. A seller who receives 100% of their asking price via a promissory note you repay over five to seven years from business cashflow is in a very different position than a seller who discounts by 20% but demands all-cash at close. Paying full price for a business that pencils at 2.5–3.5x SDE, in exchange for seller financing with a deferred first payment, often results in a better day-one cash position than a discounted all-cash deal.
This guide is educational and is not financial, tax, legal, or investment advice. Programs, lender policies, and tax rules change. Consult a licensed attorney, CPA, and lender before acting.