Monthly Recurring Revenue (MRR)

Monthly Recurring Revenue (MRR) is a critical metric for subscription-based businesses that represents the predictable, normalized revenue a company can expect to receive every month. It is calculated by summing up the recurring revenue components from all active subscriptions for a given month. This calculation typically excludes one-time fees, variable charges, and non-recurring add-ons to focus solely on the predictable revenue stream.

MRR provides a consistent measure of a company's financial health and growth trajectory. Unlike one-time sales, it smooths out fluctuations and offers a clear view of momentum, making it one of the most important financial KPIs for SaaS and other subscription models. Tracking changes in MRR, including new business, expansion, contraction, and churn, is fundamental to understanding customer base dynamics and informs metrics like Net Revenue Retention (NRR).

While MRR is a key operational metric for internal management and financial forecasting, it is distinct from GAAP revenue and should not be confused with bookings or billings. Its annualized counterpart, Annual Recurring Revenue (ARR), is often used by companies with longer-term contracts to represent the same concept on a yearly basis.