7 Numbers a SaaS Founder Should Be Able to Recite From Memory
Sam's List Editorial | 2026-06-23
7 Numbers a SaaS Founder Should Be Able to Recite From Memory There's one number that decides whether your growth is a business or a bonfire: the burn multiple. It's your net burn divided by your net new ARR. Burn $2M to add $1M of new annual recurring revenue and your burn multiple is 2.0 — you're spending two dollars to buy one dollar of recurring revenue. Investors read that as "fix the engine before you pour in more fuel." Most founders can't say their burn multiple out loud. They can recite their pitch-deck TAM to the decimal, but freeze when an investor asks the question that actually underwrites the round. That gap is the whole problem. The SaaS metrics founders should know aren't trivia — they're the language your board, your lead investor, and your eventual acquirer all speak. If you can't recite them from memory, you're negotiating in a language you don't fluently speak. Here are the seven that matter, and what each one is really telling you. 1. Burn multiple: the one number that grades your growth We started here for a reason. Net burn divided by net new ARR tells you, in a single ratio, whether growth is worth what it costs. Under 1.0 is excellent. 1.0 to 1.5 is good. 1.5 to 2.0 means you have work to do. Above 2.0 and you're buying revenue at a price the market won't refinance. The honest version of "we're growing fast" is "we added $4M in net new ARR last year and burned $5M to do it, so our burn multiple was 1.25." That sentence ends the conversation faster than any slide. 2. Net revenue retention: the SaaS metric founders should know vetted Net revenue retention (NRR) measures what happens to a cohort of customers over a year — including expansion, contraction, and churn. Above 100% means the business grows even if it never signs another logo, because existing customers expand faster than others leave. Here's the trap. Most founders quote gross retention — which only counts churn and ignores expansion — and call it a health number. It overstates nothing and understates your vetted dollars. Or worse, they conflate the two and report a figure they can't reconstruct. A board member who asks "is that gross or net?" and gets a blank stare has already learned something about how the company is run. This is one of the ARR net retention founder conversations that separates operators from optimists. If your NRR is 115%, say 115% and show the expansion that built it. 3. CAC payback, in months — not "we're efficient" Customer acquisition cost payback is how many months of gross profit it takes to earn back what you spent to land a customer. The...
