How to pick a valuation multiple: EBITDA, SDE or revenue?

When you’re evaluating a small acquisition—say, a $2M to $8M deal—you’ll encounter three valuation multiples offered by different brokers, advisors, or analyzed by different buyers. One agent leans on EBITDA multiples, another highlights SDE, a third argues the industry trades on revenue. Without clarity on what each metric actually captures and which one fits your deal shape, you risk either overpaying or walking away from a solid target because you don’t understand the basis of the asking price. This guide walks you through the mechanical differences, the real-world conditions that favor each approach, and how to triangulate the right multiple for your deal.

The Mechanical Difference: What Each Multiple Captures

EBITDA is Earnings Before Interest, Taxes, Depreciation, and Amortization. In an M&A context, especially for smaller deals, you normalize EBITDA by backing out one-time costs, owner perks (excess compensation, personal vehicle expense), and non-recurring revenue to arrive at what the business would truly earn in the buyer’s hands. A normalized EBITDA of $500K, valued at a 4.5x multiple, implies an enterprise value of $2.25M.

SDE (Seller’s Discretionary Earnings) is a close cousin—it’s typically the normalized net income plus the owner’s total compensation (salary, W-2 wages, bonuses, and sometimes consulting fees) plus non-recurring or discretionary expenses. SDE assumes a single owner-operator, so it’s the true cash earnings available to an owner who works the business. The math: Net Income + Owner Compensation + Discretionary Expenses + Depreciation/Amortization (often) = SDE. Valued at 3.0x SDE for a small-business deal might yield the same enterprise value as 4.5x EBITDA if the owner’s total draw is embedded in the SDE figure.

Revenue multiples are simpler: Enterprise Value ÷ Annual Revenue. A business generating $4M in annual revenue valued at 0.75x revenue yields a $3M enterprise value. Revenue multiples are favored in high-growth or SaaS-adjacent models where profitability isn’t yet proven, or where the business model scales predictably with top-line growth.

When Each Multiple Makes Sense

EBITDA multiples dominate mid-market deals ($10M+ enterprise value) and industries with stable, repeatable margins. When you have a platform or roll-up strategy, EBITDA is neutral to owner compensation structure—it accounts for what the business earned regardless of how the owner extracted cash. This is ideal when you’re comparing targets across different owner pay philosophies or when the seller’s personal overhead (country club, car allowance) is easy to quantify and remove.

SDE multiples are the default for smaller, owner-operated acquisitions ($500K to $5M enterprise value) because they’re transparent about what a new single owner will actually pocket. If the selling owner took a $120K salary plus $80K in “consulting” work plus $40K in vehicle and meal expenses, the SDE model makes that visible. A buyer asking “What’s my year-one cash return?” gets a clearer answer from SDE than from EBITDA, since SDE already absorbs the real owner draw.

Revenue multiples appear when: (1) the business is pre-profit or breakeven (rare for acquisitions but not unheard of), (2) the model scales predictably (recurring SaaS revenue, managed services with high retention), or (3) you’re in an industry where margin variation is huge and top-line growth is the primary value driver. Avoid revenue multiples if profit margins are inconsistent or if you suspect the seller has inflated revenue with low-margin transactions.

A Worked Example: The Same Deal, Three Ways

Imagine a staffing services provider with $3.6M in annual revenue, $420K in normalized net income, and a seller who drew a $200K salary plus $50K in car/meals. The business has $20K annual depreciation.

SDE approach: Net Income ($420K) + Seller Salary ($200K) + Discretionary Expenses ($50K) + Depreciation ($20K) = $690K SDE. At a 3.5x SDE multiple (typical for a staffing business), enterprise value is $2.415M.

EBITDA approach: Normalized Net Income ($420K) + Depreciation ($20K) = $440K EBITDA (note: we haven’t added back the owner compensation because EBITDA doesn’t assume it goes away—it’s already in net income as a salary expense). At a 5.0x EBITDA multiple (higher than the SDE multiple, but SDE already included owner pay), enterprise value is $2.2M.

Revenue approach: $3.6M Revenue × 0.65x multiple = $2.34M enterprise value. Revenue multiples for staffing typically run 0.55x to 0.75x depending on margin and growth.

All three approaches yield $2.2M to $2.4M enterprise value. The choice of multiple shouldn’t radically change your valuation if you’re consistent—but if you mix them up, you’ll overshoot or undershoot badly.

The Edge Case: When Multiples Diverge

Multiples diverge most when the seller’s true compensation is hidden or inflated. Say the SDE calculation includes $150K of consulting fees that were actually the owner’s spouse’s salary, paid but unearned. If you accept the SDE-derived valuation, you’re overpaying for that buried cost. A quality normalized EBITDA calculation would catch this—the add-back only includes legitimate non-recurring items, and inflated compensation gets flagged during due diligence.

Conversely, if the seller took minimal salary (say, $60K) and drew most of their income as dividends or S-corp distributions, the net income figure looks artificially low. SDE properly adjusts by adding back that owner draw. EBITDA—if calculated from a tax return where dividends don’t appear—would understate the business’s true earnings power. This is why SDE is more transparent for owner-operator deals and why a disciplined, add-back-by-add-back EBITDA calculation matters.

Revenue Multiple Red Flags

Watch for inflated revenue in deals pushed on revenue multiples. If the target reports $5M revenue but 8% EBITDA margin (only $400K EBITDA), the 1.2x revenue asking price ($6M) might overvalue a low-margin, capital-intensive business. A revenue multiple strategy can hide margin deterioration. Always cross-check: What’s the actual EBITDA or SDE? What’s the capital intensity? Are margins improving or declining?

Picking the Right Multiple for Your Offer

Start with comps in the target’s industry. If you’re buying a tax prep firm, research 50-100 recent tax prep sales and extract the implied multiple (ask your broker or check SBA lending data). Most industries have a “normal” range—plumbing contractors trade around 3.5x to 5.0x SDE; SaaS products might trade at 8x to 12x revenue or 6x to 10x EBITDA.

Second, assess the quality of earnings. If the seller’s books are clean and normalized earnings are defensible, you can justify a multiple at the high end of the range. If the seller relied on owner sweat equity, customer concentration is high, or you’ve found major add-backs, discount the multiple. A business with 60% customer concentration might trade at 3.0x SDE where a diversified peer trades at 4.0x SDE.

Third, triangulate. Calculate the deal price under all three methods. If EBITDA, SDE, and revenue approaches yield a narrow band (within 5-10%), you have confidence. If one method suggests $3M and another suggests $4.5M, dig into the add-backs and revenue quality. The gap often signals a hidden weakness.

Use the Outsourcing Processing platform to organize and normalize your EBITDA or SDE data as you run these calculations. The platform helps you track add-backs, isolate one-time items, and build a documented, auditable earnings statement—so when you reach an LOI or enter due diligence, your valuation premise is clear and defensible.

Frequently Asked Questions

Should I always use the multiple that gives the lowest valuation?

No. The lowest valuation isn’t always the most accurate. If you choose a multiple that doesn’t match the deal type or quality of earnings, you risk either underpaying and looking suspicious in negotiations, or overpaying if the multiple hides poor margin or growth. Use the multiple that best fits the business model and industry—then adjust within that multiple’s range based on the target’s risk profile, not by shopping for the method that suits your budget.

Why would an owner prefer SDE over EBITDA?

An owner often prefers SDE over EBITDA because SDE explicitly includes their compensation and perks—it’s a more transparent reflection of the cash they extracted. If a seller took $250K in total owner draws and you value the business at 4.0x EBITDA, the seller sees you’re not accounting for the fact that a new owner will need to hire and pay someone (or work themselves) to fill that gap. SDE makes that cost visible and defensible in the asking price. Brokers and sellers pitching SDE are essentially saying, “Here’s what the new owner will pocket after covering the cost of replacing the owner-operator.”

Can I use revenue multiples for capital-intensive businesses?

Avoid it unless you have no alternative. A capital-intensive business (manufacturing, construction) with high depreciation and low EBITDA margins will look artificially cheap on a revenue multiple, but you’ll spend years paying down debt and capex. Stick with EBITDA or SDE for capital-intensive deals because those metrics reflect what the business actually throws off in cash. If the industry primarily trades on revenue (rare for capital-heavy sectors), make sure you’re also analyzing working capital needs and capex as separate line items.

How do add-backs affect which multiple I should use?

Add-backs hit EBITDA and SDE calculations equally—both methods require you to back out one-time costs, non-recurring revenue, and personal expenses. The question isn’t which method avoids add-backs; it’s which method’s baseline captures the true owner’s draw and the business’s repeating earnings power. Once you’ve normalized earnings consistently, the multiple choice depends on whether you’re comparing to EBITDA or SDE comps in your industry. Don’t inflate add-backs to game a lower multiple; do be disciplined and documentable so your normalized earnings hold up under scrutiny.

What if the target trades in an industry where I don’t have good comps?

Build comps from adjacent industries or use SBA lending data as a proxy. SBA loans are rated on cash flow multiples (essentially SDE for owner-operators), so a quick call to a lender in the space often yields a “normal” SDE multiple. If you’re truly without comps, interview other buyers or brokers who’ve closed deals in the niche. A 30-minute conversation often surfaces the “market multiple” faster than hunting online. For smaller deals where no public comps exist, the multiple itself becomes a negotiation point—and your discipline in calculating normalized earnings becomes your leverage.

The right multiple isn’t a number pulled from a formula; it’s the result of understanding your industry, trusting your normalized earnings calculation, and adjusting for the target’s specific risk and growth profile. EBITDA works best for larger, platform-style acquisitions where you’re layering businesses. SDE is ideal for owner-operator deals under $5M where the new owner’s personal income is a key value driver. Revenue multiples belong in high-growth, predictable-margin models. When all three converge, you have confidence. When they diverge, you’ve found the gap worth investigating before you move to an LOI.

This article is educational and does not constitute M&A, investment, or accounting advice — confirm findings with a licensed CPA or M&A advisor before making an offer.

This article is educational and does not constitute M&A, investment, or accounting advice — confirm findings with a licensed CPA or M&A advisor before making an offer.

See how IncomeReady organizes normalized EBITDA and SDE before you make an offer.