What Is ARR (Annual Recurring Revenue)?
Annual Recurring Revenue is the annualized value of all active subscription contracts, representing the predictable revenue a SaaS company expects to earn over the next 12 months.
ARR is the primary revenue metric for subscription businesses. It normalizes all contracts to an annual basis, making it possible to track growth, retention, and expansion consistently. A customer on a $2,000/month plan contributes $24,000 to ARR. A customer on a $120,000/year contract contributes $120,000.
ARR changes in four ways: new business (new customers), expansion (existing customers spending more), contraction (existing customers spending less), and churn (customers leaving). Tracking each component separately reveals the health of different business functions: sales drives new business, CS drives expansion and retention.
ARR and Customer Success
CS teams are directly responsible for the expansion, contraction, and churn components of ARR. A CS organization that adds $2M in expansion and prevents $1M in churn is contributing $3M in net ARR impact. This framing is how CS leaders justify headcount and tooling investment.
Individual CSMs should understand their ARR book of business. A CSM managing $3M in ARR knows exactly what is at stake in every renewal conversation. This number also helps CS leaders balance workloads. Distributing ARR evenly across the team is more meaningful than distributing logo counts.
ARR Benchmarks
Growth benchmarks depend on company stage. Pre-Series A companies growing ARR 3x year-over-year are on track. Series B/C companies target 50-100% growth. At $50M+ ARR, 30-40% growth is considered strong. The "Rule of 40" (growth rate + profit margin > 40%) is a common benchmark for balancing growth and efficiency.
For CS teams, the most relevant ARR metric is net ARR retention (NRR expressed in dollars). If your CS team manages $50M in ARR and delivers 115% net retention, that is $7.5M in net new ARR from the existing base without a single new logo.
Frequently Asked Questions
What is the difference between ARR and MRR?
ARR is the annualized value of recurring revenue. MRR is the monthly value. ARR = MRR x 12. ARR is more common for companies with annual contracts. MRR is more common for companies with monthly billing cycles.
Does ARR include one-time fees?
No. ARR only includes recurring subscription revenue. One-time setup fees, professional services, and hardware sales are excluded. The goal is measuring predictable, repeating revenue.
How does customer success impact ARR?
CS teams impact ARR through three levers: reducing churn (protecting existing ARR), driving expansion (growing ARR from existing customers), and minimizing contraction (preventing downgrades). Together, these determine net ARR retention.