What is MRR (Monthly Recurring Revenue)?

Why It Matters

MRR is the single most watched number at most subscription businesses because it's the base unit nearly every other SaaS metric, from ARR to NRR to CAC payback, is built on top of. A rising MRR means the business is growing in a predictable, recurring way, while a flat or declining MRR is an early warning sign that gets lost if a team only looks at total cash collected, which can be skewed by annual prepayments. Breaking MRR movement down into new business, expansion, downgrades, and churn is what turns a single number into an actionable diagnosis of exactly what's driving growth or decline. Ignoring that breakdown means two months with identical total MRR could actually represent completely different underlying health, one growing from new sales and the other propped up entirely by expansion while losing customers. Because so many other metrics derive from it, an error in how MRR is calculated quietly distorts everything built on top of it.

Example

A company has 500 customers paying an average of $80 per month. MRR is 500 times $80, which equals $40,000. The following month, 10 customers upgrade to a plan that is $50 more expensive and 5 customers cancel at $80 per month, so MRR moves up by $500 from the upgrades and down by $400 from the cancellations, landing at $40,100 overall. Breaking MRR down into new business, expansion, downgrades, and churn each month is what lets a finance or growth team see exactly which lever moved the number, rather than just watching the total go up or down.

Frequently Asked Questions

• How is MRR different from ARR?

  MRR is the recurring revenue normalized to a monthly figure, while ARR (Annual Recurring Revenue) is simply MRR multiplied by 12. They represent the same underlying revenue base at two different time scales, and companies typically report whichever one matches their planning cadence.

• Does MRR include one-time payments or setup fees?

  No, MRR only includes revenue that recurs predictably each billing cycle. One-time fees, like an implementation or onboarding charge, are excluded because they don't represent revenue the business can count on repeating next month.

• How do annual contracts get counted in MRR?

  An annual contract's total value is divided by 12 and added to MRR at that normalized monthly rate, rather than counting the full annual payment in the month it was collected. This keeps MRR comparable across customers on different billing frequencies.

• What's the difference between MRR and Net Revenue Retention?

  MRR is a snapshot of total recurring revenue at a point in time, while Net Revenue Retention measures the percentage change in that revenue from existing customers specifically, isolating expansion and churn from new sales. NRR is calculated using the same underlying MRR components, but answers a narrower question.

• How often should MRR be tracked?

  Most subscription businesses track MRR monthly at minimum, and many break it into its new business, expansion, downgrade, and churn components on that same monthly cadence. Tracking it less frequently makes it harder to catch a shift in one of those components before it compounds.