The buyer-side framework that found $340,000 in hidden churn on 11 of 14 SaaS deals. Hook → Story → Offer, in 12 minutes.
A 12-minute read · Updated July 2026
Never trust a summary. Always request the raw CSV.
That's it. That's the one sentence that would have saved me $340,000. Every number in a data room summary has been chosen by the seller. The raw CSV has not. If the seller won't give you the export, walk away — or demand a price adjustment large enough to cover the risk.
If you get nothing else from this masterclass, get this: the seller's churn number is a marketing claim. The CSV is the evidence. This is the one thing that separates acquirers who get burned from acquirers who find the gap in the first hour.
That gap will cost you $340,000 on a $1M SaaS acquisition. Here's how it happens:
This isn't fraud. It's selection bias — and every SaaS broker knows how to frame the numbers. You need to know how to unframe them.
I'd bought a SaaS with "2% monthly churn." The dashboard said it was growing. The first three months looked fine.
Then month four hit. MRR dropped 14% in 30 days. I pulled the raw customer export at 3:47 AM and started tracing every cohort manually. By sunrise, I had the answer:
I spent four months and $340,000 learning what every SaaS acquirer eventually learns: the summary is the seller's story. The CSV is the truth.
That morning, I built the first version of what became ChurnLens — the 5-Risk Buyer-Side Method. This masterclass is that method, in 12 minutes.
Most acquirers check revenue concentration and logo retention. That's 2 of 5 risks. Here are all 5:
Run all 5 against the raw CSV, not the summary. If any one of them is significantly worse than reported, you've found your negotiation lever.
Before you can run the 5-Risk Method, you have to crush the three false beliefs that make acquirers trust the summary instead of the CSV:
Truth: Due diligence checks legal and financial risk. It rarely re-derives churn from raw data. The seller knows this. The summary survives DD because nobody asks for the CSV.
Truth: 2% monthly = 24% annual. That's high. But the real number, after accounting for excluded categories, is often 5-9% monthly — 60-108% annual. You're buying a business that loses half its customers every year.
Truth: Growth masks churn until it doesn't. When new sales slow (and they always do), the underlying churn rate is the number that determines whether the business survives. You're not buying the growth — you're buying the churn.
Yes you do. The 5-Risk Method takes under 10 minutes if you have the right tool. Here's the workflow:
The deal takes 30-60 days. The analysis takes 10 minutes. The gap between those two numbers is why acquirers skip it — and why 11 of 14 deals have hidden churn the buyer only discovers after the wire clears.
That's less than the cost of one hour with an M&A analyst. And it runs in 60 seconds.
Every acquirer who skips the 5-Risk Method has the same story: "I trusted the summary. I discovered the real churn four months later. It cost me $340,000."
Don't be that story. Run the analysis before the wire clears — not after.
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