The profit-and-loss statement looks great. Revenue up, expenses lean, margin healthy. You read it twice and start picturing the income hitting your account. This is the exact moment to get suspicious, because a P&L is not the truth — it's the story the seller chose to tell about the truth, and the dangerous stuff lives in what got left off the page.
I'm not saying every seller is lying. Most aren't. But a P&L is assembled by the person with the most reason to make it look good, and even honest ones leave out the things that don't fit in a spreadsheet of revenue and expenses.
The hidden problems that don't show up as a line item:
- The expenses that should exist and don't. A content site publishing thirty articles a month with no writer cost on the books means one of two things: the seller writes them all (and leaves when they sell), or the cost is being hidden to fatten the margin. Either way, your P&L is about to have a number on it that theirs doesn't.
- Costs moved off-book. Hosting, tools, and contractors quietly paid from a personal account so they don't drag down the business's reported profit. You inherit those costs on day one.
- A Google update already in motion. The traffic was fine through the reporting period, but a core update is rolling and the rankings are already wobbling. The P&L is a rearview mirror; it can't see the truck ahead.
- Revenue timing games. Annual plans recognized all at once to spike a good month. A one-time deal counted like it's recurring. Refunds and chargebacks that land after the reporting window closes.
- Concentration risk. One customer, one sponsor, or one product is 40% of revenue, and the P&L shows a comfortable total that's actually balanced on a single point of failure.
So you check the story against the receipts. Reconcile the reported revenue against the actual processor payouts and bank deposits — they should match, and when they don't, you ask why. Look for the expenses a business like this must have and flag the ones that are missing. Ask what's recurring versus one-time, and verify it instead of taking the label. Pull the customer or revenue concentration and find out how many legs the stool really has.
This is the difference between reading the financials and doing diligence on them. Reading is “the numbers look good.” Diligence is “the numbers match the bank, the expenses make sense for a business this size, and nothing's been timed to flatter the month I'm buying on.”
If a deal's financials look a little too smooth and you can't quite find the seam, that seam is usually where the audit earns its fee. But you can start with the simplest cross-check there is: does the revenue on the P&L match the money that actually landed in the account? Get the payout exports and the bank statements, and compare. The gaps are the story they didn't tell.