Every SaaS founder I know has a dashboard. Most of them are vanity machines. Green arrows going up, numbers that feel good to look at, metrics that would impress a VC but don't actually tell you what to do next week.
The difference between a useful metric and a vanity metric is actionability. A good metric tells you what to do. A vanity metric tells you whether to feel good or bad.
The Big Six That Actually Matter
These are the metrics that predict your runway, your growth rate, and your chances of hitting your next milestone:
1. Monthly Recurring Revenue (MRR)
Your baseline. But not just the number—track MRR movement: new MRR, expansion MRR, churned MRR, and net MRR change month over month. The movement tells you whether your growth is accelerating or decelerating.
2. Churn Rate
Logo churn (customers lost) and revenue churn. The rule of thumb: 5% monthly churn is fatal. 2% is sustainable. 0.5% is exceptional. If you're above 3%, everything else is secondary—churn is your biggest threat.
3. Customer Acquisition Cost (CAC) by Channel
Not your average CAC—your CAC by channel. Organic vs paid vs referral. You'll almost always find one channel that's 2-3x more efficient than the others. Double down there.
4. Lifetime Value (LTV)
LTV:CAC ratio is the gold standard. 3:1 means healthy. 5:1 means you're under-investing in growth. Below 2:1 means you're acquiring customers at a loss and subsidizing your own demise.
5. Net Revenue Retention (NRR)
NRR = MRR at start of month + expansion - churn. If NRR > 100%, you're growing without acquiring a single new customer. Best-in-class SaaS companies have NRR > 120%. This is the most important metric for understanding your product-market fit momentum.
6. Time to Value (TTV)
How long until a new customer gets their first "win" from your product? Short TTV = low churn. Long TTV = customers cancel before they experience value. Track this per customer cohort.
What Most Founders Get Wrong
The mistake isn't ignoring metrics—it's reacting to the wrong ones. When MRR goes up 10% but churn is also up 20%, you have a problem disguised as growth. When CAC looks fine but your LTV is calculated wrong, you're making bad decisions about where to invest.
BeaconIO automatically tracks these six metrics, correlates them with leading indicators, and alerts you when trends emerge—not just when thresholds are crossed. Because by the time you see churn spike in your dashboard, the customers have already left.