The total value of all active subscription contracts normalised to a monthly figure — the most granular recurring revenue metric, used to track momentum, churn, and expansion in real time.
Also known as:
MRR
MRR is the sum of all recurring subscription revenue normalised to a single month. Annual contracts are divided by 12. Variable or usage-based revenue is excluded unless it recurs at a predictable level. Like ARR, MRR is tracked in components: New MRR (new customers), Expansion MRR (upsell), Contraction MRR (downgrades), Churned MRR (cancellations), and Reactivation MRR (returning customers). Net New MRR is New MRR + Expansion MRR − Contraction MRR − Churned MRR.
MRR provides a real-time signal of revenue health that annual or quarterly figures cannot. Month-on-month MRR changes reveal whether the business is accelerating or decelerating, where churn is concentrated, and whether expansion revenue is materialising as planned. For early-stage and growth-stage SaaS businesses, MRR is typically the primary operating metric because it reflects current momentum rather than trailing performance.
MRR and ARR measure the same underlying revenue base at different time horizons. MRR is used for operational tracking — identifying churn patterns, measuring month-on-month growth, and monitoring expansion. ARR is used for planning, board reporting, and valuation. Neither is more correct; they serve different purposes. A business that only tracks ARR will miss intra-year deterioration. One that only tracks MRR will lack the annual planning frame investors and boards require.
MRR is the operational revenue signal in every engagement with scaling SaaS teams. We use MRR movements — particularly the ratio of expansion MRR to churned MRR — as an early diagnostic of whether the commercial model is working at a unit level. Teams with churned MRR consistently outpacing expansion MRR are funding a retention problem with new business activity. That diagnosis changes the commercial architecture we recommend: the answer is not more pipeline, it is a retention and expansion motion that changes the MRR trajectory before headcount scales.
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