Price-to-Sales vs EV/Revenue: Which Multiple to Use

The choice between price-to-sales vs EV/revenue hinges on a single fact: whether the company is sitting on cash or drowning in debt. Both measures the value assigned to each dollar of revenue, but EV/Revenue tells you what an acquirer would actually pay, while Price-to-Sales tells you what equity investors are paying right now.

The mechanical difference

Price-to-Sales (P/S) = Market capitalization ÷ Annual revenue.

If a company has a market cap of $10 billion and revenue of $2 billion, its P/S ratio is 5×. You pay $5 in stock price for every $1 of sales the company generates.

EV/Revenue (Enterprise Value ÷ Revenue) = (Market cap + Total debt − Cash) ÷ Annual revenue.

Same company, but suppose it carries $1 billion in debt and holds $500 million in cash. Its enterprise value is $10B + $1B − $0.5B = $10.5B. So EV/Revenue = 10.5 ÷ 2 = 5.25×.

The gap widens with leverage. If that same firm had $3 billion debt and $100 million cash, EV would be $10B + $3B − $0.1B = $12.9B, and EV/Revenue jumps to 6.45×—even though the P/S stayed at 5×. The extra debt makes the business look more expensive on a full economic basis, because someone acquiring it would assume that debt.

When Price-to-Sales makes sense

Use P/S when you’re comparing how equity investors value two companies right now, controlling for size differences. It’s especially useful for unprofitable or low-margin firms (startups, early-stage tech, specialty retailers) where earnings are negative or trivial. P/S ignores profitability, which sounds wrong but makes sense when comparing pre-profit businesses—you’re saying “the market is paying a premium for growth and market position, not today’s earnings.”

P/S is also convenient for quick screening. Pull the market cap and last quarter’s revenue (annualize it), and you have a number in seconds. No need to dig into the balance sheet. For equity research or stock picking, this speed is valuable.

The downside: P/S completely ignores how the company financed itself. A company with $5 billion debt is treated the same as one with $500 million debt, as long as their market caps and revenues are equal. That’s misleading if you’re trying to understand what a buyer would actually pay or what the firm is really worth on a levered basis.

When EV/Revenue makes sense

Use EV/Revenue when you’re comparing businesses with different capital structures (debt levels) or when you’re modeling an acquisition. An acquirer doesn’t just buy the equity—they assume the debt and inherit the cash. So EV is the true economic price they’d pay.

EV/Revenue is especially useful for:

• Debt-heavy industries: utilities, REITs, telecom carriers. Two utilities with the same P/S but vastly different debt loads will have different EV/Revenue multiples, properly reflecting the true leverage and risk.
• Cash-rich firms: tech giants, pharmaceuticals sitting on hoards. P/S overstates their value because it ignores the cash cushion. EV/Revenue nets it out, showing a lower effective multiple.
• M&A analysis: comparing acquisition targets. You’re asking, “What are acquirers willing to pay per revenue dollar?” EV/Revenue is the answer.
• Cross-border or cross-sector comparisons: when leverage norms differ widely, EV/Revenue normalizes the comparison.

A worked example

Three software companies, all with $1 billion in annual revenue:

On P/S, all three look identical—investors are paying $8 per revenue dollar. But EV/Revenue tells a different story. Company A looks cheap at 8.3× when you account for its modest debt. Company B looks expensive at 9.7× because it’s leveraged and buyers would assume that debt. Company C is the cheapest at 6× because it’s flush with cash; a buyer would use that cash to offset the purchase price.

If you’re an acquirer, you’d likely target Company C or A, not B. But if you’re picking stocks based on how equity investors value them, you might favor Company B if you believe it can service its debt and grow, because the equity is cheap relative to leverage.

The profitability blind spot

Both P/S and EV/Revenue ignore margins and profitability. A high-margin software firm (60% EBITDA) and a low-margin retailer (3% EBITDA) could have identical P/S ratios but vastly different economics. When comparing across industries or business models, pair these multiples with gross profit margin or EBITDA margin to see how much cash each dollar of sales actually generates.

Choosing between them

Ask yourself: “Am I comparing peers with similar capital structures, or am I looking at a deal?” If peers have roughly the same debt-to-equity profile, P/S is faster and just as accurate. If you’re modeling acquisition scenarios or comparing a leveraged firm to an unleveraged one, EV/Revenue is essential. Many analysts use both—P/S as a quick sanity check, EV/Revenue as the deeper valuation anchor.

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