Monthly Recurring Revenue (MRR)
The predictable, normalized monthly revenue from all active subscriptions, excluding one-time fees, providing the baseline metric for subscription business health and growth trajectory.
MRR is the heartbeat metric of subscription businesses. It normalizes all subscription revenue to a monthly figure: a customer on a $1,200 annual plan contributes $100 MRR. This normalization allows apples-to-apples comparison across different billing periods and makes month-over-month growth rates meaningful.
MRR decomposes into five components: New MRR (from first-time customers), Expansion MRR (upgrades and add-ons from existing customers), Reactivation MRR (returning customers), Contraction MRR (downgrades), and Churned MRR (cancellations). Tracking each component separately reveals the health of different growth engines. A company growing MRR 10% monthly through new customers but losing 8% to churn has a very different trajectory than one growing 5% from new and 5% from expansion with only 2% churn.
For growth teams, MRR growth rate is the primary KPI. Healthy early-stage SaaS companies grow MRR 15-20% month-over-month. At scale, 5-10% monthly growth is strong. The key insight is that net new MRR equals the sum of all positive components minus all negative components, so improving any single component directly impacts the bottom line. AI-powered growth focuses on each component: optimizing acquisition for new MRR, predicting expansion opportunities, and preventing churn.
Related Terms
Growth Loop
A self-reinforcing cycle where each cohort of users generates inputs (data, content, referrals) that attract the next cohort, creating compounding growth.
Churn
The rate at which customers stop using or paying for a product over a given period, typically measured as monthly or annual churn percentage.
Activation Rate
The percentage of new signups who complete a key action (the 'aha moment') that correlates with long-term retention and product value realization.
Product-Led Growth (PLG)
A go-to-market strategy where the product itself drives acquisition, activation, and expansion through self-serve experiences rather than sales-led motions.
Viral Coefficient (K-Factor)
The average number of new users each existing user brings to the product, where a K-factor above 1.0 indicates self-sustaining viral growth.
Net Revenue Retention (NRR)
The percentage of recurring revenue retained from existing customers over a period, including expansion, contraction, and churn — where 100%+ indicates growth without new customers.