What Is MRR (Monthly Recurring Revenue)?
Monthly Recurring Revenue is the total predictable revenue from all active subscriptions in a single month, normalized from contracts of varying lengths.
MRR is ARR's monthly counterpart. It provides a more granular view of revenue trends, making it useful for tracking month-over-month changes in growth, churn, and expansion. A customer on an annual $24K contract contributes $2K to MRR.
MRR is typically broken into components: New MRR (from new customers), Expansion MRR (from upgrades), Contraction MRR (from downgrades), and Churned MRR (from cancellations). Net New MRR = New + Expansion - Contraction - Churned. This breakdown reveals the health of each revenue motion.
When to Use MRR vs. ARR
Companies with predominantly monthly billing use MRR as their primary metric. Companies with annual contracts typically use ARR. Both work. The key is consistency. Mixing MRR and ARR in the same analysis creates confusion.
For operational CS metrics, MRR is often more useful because it captures monthly fluctuations. A spike in churned MRR in March might not show up clearly in quarterly ARR reporting but is immediately visible in MRR analysis.
MRR in CS Operations
CS teams use MRR to prioritize accounts, allocate resources, and measure performance. A CSM's book of business is often defined by MRR under management. Renewal dashboards show upcoming MRR at risk. Expansion pipelines track potential MRR growth.
MRR forecasting is a key CS leadership skill. Predicting next month's MRR requires understanding the renewal calendar, expansion pipeline, and at-risk accounts. Accurate MRR forecasts demonstrate CS maturity and build credibility with finance and executive leadership.
When MRR trends downward, it is a leading indicator of deeper problems. Declining MRR from existing customers (negative net expansion) signals that churn and contraction are outpacing growth from the current base. CS leaders should treat MRR trends as a real-time health check on their programs.
Frequently Asked Questions
How do you calculate MRR?
Sum the monthly subscription value of all active customers. For annual contracts, divide the annual value by 12. Exclude one-time fees, professional services, and variable usage charges that are not guaranteed.
What is the relationship between MRR and ARR?
ARR = MRR x 12. MRR provides monthly granularity while ARR provides the annualized view. Companies with monthly contracts typically track MRR. Companies with annual contracts typically track ARR.
Why is MRR important for CS teams?
MRR gives CS teams a monthly view of revenue health. It makes churn, contraction, and expansion visible in real time. CS leaders use MRR trends to forecast, allocate resources, and measure the impact of retention programs.