What Makes a SaaS Business Sellable: Metrics Buyers Check

Two SaaS businesses with the same revenue can sell for very different prices, or one can fail to sell at all. The difference is usually revenue quality: how much of the revenue repeats, how much of it stays, and how much risk sits inside it. These are the metrics buyers check first.

1. Recurring share of revenue

Buyers pay a software multiple for subscription revenue, not for setup fees, consulting or one-time projects. If a large part of your revenue is services, expect a buyer to value that part separately and at a lower multiple. Split recognized revenue for the last twelve months into recurring and services or one-time before anyone asks.

2. Net revenue retention

Net revenue retention (NRR) measures how much revenue from last year's customers you still collect this year, after upgrades, downgrades and cancellations. FE International names it the metric most closely associated with the gap between top-quartile and bottom-quartile SaaS valuations (FE International, SaaS valuation multiples, August 25, 2026).

3. Customer concentration

If one customer pays a large share of your revenue, a buyer is partly buying that one relationship. Losing it after the sale would cut the value of what they paid for, so concentration lowers the multiple or shifts part of the price into an earnout.

4. Gross retention and cohort stability

Gross retention ignores upgrades and shows how much revenue you keep before expansion. A strong NRR can hide high churn when a few customers expand a lot. Buyers look at both, and at whether each signup cohort holds its revenue over time.

5. Growth durability

Growth matters, but buyers ask how it was paid for. FE International notes that growth funded by burn is worth less than growth funded by operations. Payback period on acquisition cost and the ratio of customer lifetime value to acquisition cost show whether growth can continue after you leave.

6. Margin profile

FE International says buyers treat a business as software above roughly 75% gross margin, and start questioning how much revenue is really services below 70%. For larger companies, FE International also cites the Rule of 40 (growth rate plus profit margin of 40% or more): public SaaS companies that meet it trade at a median 6.6x trailing revenue, against 2.3x for those below it. For a small SaaS, treat it as a rough health check, not a price rule.

What buyers discount outside the numbers

• Owner dependency. If the product, support or sales depend on you, the buyer is pricing in what happens when you leave.
• Books that cannot be verified quickly. FE International notes buyers discount figures they cannot check.
• Unclear ownership of code, domains or accounts.

Score your SaaS on these six metrics

The free sellability score rates recurring share, net revenue retention, customer concentration, cohort stability, growth durability and margin profile from 1 to 5 each. It names your two weakest dimensions and, for each one, the records a buyer will likely request. Its bands are a rule of thumb, not a market statistic, and the score is a guide, not a valuation or an offer.

Then put a number on it with the valuation calculator, read how much your SaaS is worth, or see how selling with SaaSClose works.