Ask a first-time buyer how they evaluated a target and most describe the same process: they looked at revenue, looked at EBITDA, and decided the price seemed fair or it didn't.

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That's not reading the numbers. That's glancing at them.

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The financials a seller hands you are a starting point, not an answer. Every number on that page has a story behind it, and the buyers who lose money post-close are almost never the ones who missed an obvious red flag. They're the ones who accepted the summary version of the story instead of asking what's underneath it.

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Here's how to actually read an agency's numbers before you commit to anything, line by line.

1. Start With Tax Returns, Not Just the P&L

A seller's internal P&L is easy to shape. It's built for internal use, and internal use means flexibility: revenue recognition timing, discretionary add-backs, expenses categorized in whatever way tells the best story.

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Tax returns are harder to massage, because they've already been filed with the IRS. If the revenue on the P&L doesn't reconcile with what was reported on the return, that's not a rounding error. That's a conversation that needs to happen before you go one step further.

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What to do: Request three years of tax returns alongside financial statements from the very first ask, not after you've already fallen in love with the opportunity. Any resistance to sharing them is information in itself.

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Watch-Out: A seller who's happy to share P&Ls but slow-walks the tax returns isn't necessarily hiding fraud. But they're hiding something, and you need to know what before you price the deal.

2. Trace Every Add-Back to a Specific Line Item

"The real EBITDA is higher once you add back X" is one of the most common sentences in agency M&A, and one of the most dangerous to accept at face value.

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Some add-backs are completely legitimate: a one-time legal expense, an owner's above-market salary that a new buyer wouldn't need to replicate exactly, a piece of equipment that won't recur. Others are optimistic reclassifications of expenses that will absolutely continue after you own the business.

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What to do: Build your own add-back schedule from source documents, not the seller's summary. For every adjustment, ask: would this expense still exist under my ownership? If the honest answer is yes, it's not an add-back. It's a real cost you're about to inherit.

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Pro Tip: Run the deal math twice: once with the seller's adjusted EBITDA, and once with only the add-backs you can independently verify. If the deal only works under the first number, you're not pricing the business. You're pricing a story.

3. Separate Recurring Revenue From Revenue That Looks Recurring

Retainers look identical on a spreadsheet whether they're month-to-month arrangements a client can exit with 30 days' notice, or 12-month contracts with real termination clauses and auto-renewal.

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Those are not the same asset, even though they show up as the same number in the revenue column. One is a promise. The other is contracted, durable cash flow you can actually underwrite.

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What to do: Ask for a breakdown of revenue by contract type: month-to-month, annual with auto-renewal, project-based, and one-time. Calculate what percentage of revenue is genuinely locked in versus what's essentially a handshake that renews every 30 days.

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Pro Tip: Calculate net revenue retention, what percentage of last year's revenue from existing clients came back this year, including any upsells. A number consistently at or above 100% tells you the client relationships are growing. A number trending down tells you the business is quietly losing ground even while the top-line revenue number looks stable.

4. Read the Trend, Not the Snapshot

A single year of financials tells you almost nothing on its own. The same $1.5M revenue, $300K EBITDA agency could be accelerating, stable, or declining, and the number on the page looks identical in all three cases.

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Revenue that's climbing while margin compresses year over year is a specific and dangerous pattern. It usually means the business is chasing top-line growth at the expense of profitability, taking on clients it shouldn't, discounting to keep volume up, or absorbing costs it can't sustainably carry. Whatever the cause, you're evaluating a business that's getting worse at making money even as it appears to get bigger.

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What to do: Always request three years of financials minimum, and lay them side by side. Look specifically at margin trend, not just revenue trend. Ask the seller to walk you through any year-over-year movement that doesn't have an obvious explanation, growth included. Growth you can't explain deserves the same scrutiny as decline you can't explain.

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Watch-Out: Never evaluate an agency's financials as a snapshot. Three years of margin compression isn't a rounding error you can fix post-close through better management. It's a structural problem you're about to own.

5. Quantify Client Concentration in Dollars, Not Just Percentages

Every buyer knows to ask about client concentration. Fewer buyers actually run the math on what it means for their specific deal.

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If one client represents 30% of a $1.5M revenue agency, that's $450K of revenue riding on a single relationship you didn't build and don't control. If that client leaves in year one, you didn't acquire the business you thought you did. You acquired a smaller one, at the price of the larger one, and that gap comes directly out of your cash flow and your ability to service acquisition debt.

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What to do: Get a full client revenue breakdown before you discuss price, not after. Any client above 20% of revenue deserves a direct conversation about relationship history and switching risk. Any client above 30% should change the deal itself: a lower upfront price, a larger earnout tied to retention, or a short-term revenue guarantee from the seller.

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Pro Tip: Model the deal under a scenario where your largest client leaves in month six. If the numbers don't work under that scenario, the structure needs to change before you sign anything, not after it happens.

6. Check Whether the Numbers Depend on the Owner

This one doesn't show up as a line item, but it shapes every number on the page.

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An agency where the founder personally handles the top client relationships, approves every deliverable, and drives most new business isn't really generating the revenue you're looking at. The founder is. The financials describe what happens when that person is fully engaged, which is precisely the condition that changes the day you close.

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What to do: During diligence, ask specifically how new clients were acquired in each of the last three years. If the answer is overwhelmingly referrals from the founder's personal network, that pipeline is not an asset that transfers at close. Ask who owns each major client relationship day-to-day, and what happens if that person is unavailable for 60 days. The answer tells you more about the durability of the numbers than the numbers themselves.

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Watch-Out: Don't let a strong revenue number substitute for this question. A financially strong agency that's entirely owner-dependent isn't a strong acquisition target. It's a strong argument for a much lower price and a much longer transition period.

7. Look at Accounts Receivable, Not Just Revenue

Revenue recognized isn't the same as revenue collected, and an agency with growing accounts receivable, especially receivables aging past 60 days, is often quietly signaling problems that haven't shown up in the P&L yet.

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Slow-paying clients, disputes over deliverables, or cash flow strain inside the seller's business can all hide behind a healthy-looking revenue line while the actual cash position deteriorates.

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What to do: Request an aging schedule for accounts receivable alongside the P&L. Look specifically at what percentage is current versus 60, 90, and 120+ days past due, and ask directly what's driving any aged balances.

The Real Skill Is Asking What's Underneath

None of these checks require sophisticated financial modeling. They require the discipline to treat every number as a starting point for a question, not a finished answer.

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The agencies worth buying have financials that hold up under this kind of scrutiny: the story reconciles with the tax returns, the add-backs trace to real, non-recurring items, the revenue is genuinely recurring, the trend is healthy, concentration is manageable, the business doesn't collapse without the founder, and cash is actually being collected.

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The agencies that become expensive lessons almost never fail because a buyer missed something impossible to find. They fail because a buyer accepted the summary instead of doing the work to verify it, usually because they were excited, in a hurry, or didn't know which questions to ask.

What This Means for Your Next Deal

Before you take any set of financials at face value, run them through these seven checks. Most agencies you look at will hold up on some of these and raise questions on others. That's normal, it doesn't mean walk away. It means you now know exactly what needs to be priced, structured, or addressed in the transition plan before you sign anything.

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That clarity, knowing precisely what you're buying instead of hoping the summary was accurate, is what separates buyers who close good deals from buyers who spend their first year post-close discovering what the numbers didn't tell them.

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Want a full framework for financial diligence before your first LOI? Get the FREE 21-Day Email Course designed for first-time agency buyers.

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Or join us live at the M&A & Exit Lab, where you'll work through real financial statements with experienced buyers and advisors who've learned exactly what to look for the hard way.

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The numbers will tell you the truth. You just have to know how to ask.

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