SaaS M&A Due Diligence Framework

A systematic methodology for evaluating a SaaS target before acquisition — going beyond revenue multiples to surface the five risks that determine whether MRR will still exist 12 months after close.

Key insight: 80% of SaaS acquirers overpay because they diligence revenue but not revenue quality. A $1M ARR SaaS at 8× with 1% monthly churn is a better deal than a $1M ARR SaaS at 5× with 5% churn — but standard valuation models treat them identically.

The 5 Risk Dimensions

Every SaaS acquisition should be stress-tested across these five dimensions. Each dimension surfaces a risk that sellers rarely disclose in their Confidential Information Memorandum (CIM).

1. Revenue Churn Rate

How much MRR is leaking each month. The seller's headline churn number is almost always understated — it often excludes downgrades, paused accounts, and payment failures. Request cohort retention data for the last 18 months.

2. Customer Concentration

What percentage of revenue comes from the top 1, 3, and 5 accounts. If the top 3 customers represent over 30% of MRR, the loss of one account could crater revenue. Negotiate a holdback clause for these accounts.

3. Annual-Plan Renewal Risk

What percentage of annual contracts are up for renewal in the next 90 days. A high concentration of renewals in a short window creates a cliff — sellers often time their exit just before these cliffs to shift the risk to the buyer.

4. Zombie MRR Detection

Revenue from accounts that haven't logged in for 90+ days. These are "walking dead" customers — they're still paying but have disengaged. Zombie MRR above 5% signals future churn that hasn't materialized yet.

5. MRR Trajectory Forensics

Is growth accelerating or decelerating? Look at net revenue retention (NRR) and YoY growth trend. A SaaS with 30% YoY growth but NRR below 100% is growing only through acquisition — the existing base is contracting.

How to Apply This Framework

  1. Request the target's subscription CSV export (Stripe, Chargebee, Recurly) — not the seller's summary spreadsheet.
  2. Run the ChurnLens 5-Risk analysis on the raw data to get each dimension scored and benchmarked.
  3. Adjust your valuation model based on the composite Revenue Quality Score — higher risk = lower multiple.
  4. Negotiate holdbacks for the specific risks the analysis surfaces (e.g., 20% holdback tied to top-3-account retention at 12 months).

Try the Interactive Simulator

Run a quick screening simulation before you commit to a full data-room analysis. Enter the target's headline metrics and get an instant Revenue Quality Score with radar breakdown.

→ Launch the Due Diligence Simulator (free, no signup)

The Revenue Quality Scorecard

The composite A–F grade that ties all five dimensions together into a single screening signal. A letter grade tells an acquirer more about whether MRR will persist in 12 months than a 50-page CIM.

→ Read about the Revenue Quality Scorecard

Run the full analysis on real data

Upload your target's subscription CSV and get the complete buyer-side due diligence report with all 23 audit points.

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