Most CS teams track too many metrics and act on too few. This guide covers the eight metrics that actually predict what you care about — retention, expansion, and churn — with practical benchmarks and calculation formulas for each.
1. Time to Value (TTV)
The most important metric in CS. Formula: Date of first value experience − Date of contract signing. Benchmark: Under 30 days for complex products, under 7 days for simple ones. According to Sybill's 2026 research, customers who don't reach value within 14 days are 3× more likely to churn. See our full TTV guide for tactics to reduce it.
2. Onboarding Completion Rate
Percentage of customers who complete all onboarding stages. Formula: (Customers completing all stages / Total onboarded) × 100. Benchmark: 80%+ is excellent. Below 60% signals a structural problem in your onboarding process. The most common cause is IT delays blocking users.
3. Health Score
A composite measure of account engagement, product usage, and relationship strength. There's no universal formula — build yours from 3–5 leading indicators specific to your product. Common inputs: login frequency, core feature adoption, support ticket volume, NPS score, last CS touchpoint date.
4. Net Revenue Retention (NRR)
Formula: (Starting MRR + Expansion MRR − Churned MRR − Contraction MRR) / Starting MRR × 100. Benchmark: 100% means you're replacing churn with expansion. 110%+ is world-class. NRR is the metric that investors care about most — and it's almost entirely driven by onboarding quality in the first 90 days. See our churn reduction guide for tactics.
5. Customer Effort Score (CES)
How easy is it for customers to work with you? Survey customers at the end of onboarding with: "How easy was it to get started with [Product]?" on a 1–7 scale. Benchmark: 5.5+ is good. Below 4.5 signals friction in your onboarding process that needs immediate attention.
6. Activation Rate
Percentage of onboarded customers who reach your defined activation event (the moment they first experience meaningful value). A 25% improvement in activation leads to a 34% improvement in MRR according to Userpilot's research.
7. Onboarding Task Completion Rate
Percentage of assigned onboarding tasks completed on time. Benchmark: 70%+ on-time is good. Below 50% means clients are disengaging from your onboarding process. The fix is usually removing login friction — see our analysis of why Slack channels fail as task management tools.
8. Days to First Value (DTFV)
Similar to TTV but focused specifically on the first meaningful value experience, not the full onboarding completion. Use this alongside TTV to understand whether your "aha moment" comes early enough in the journey. If DTFV is over 14 days, you're at risk. See the TTV guide for tactics to move this number down.