What Is MRR (Monthly Recurring Revenue), Agency Context?

A healthy topline revenue figure can hide a fragile business if too much of it comes from one-off project work rather than recurring retainers. MRR isolates the recurring portion specifically, which is why it matters more to lenders, acquirers, and an agency's own owners than total monthly revenue does, since MRR is the piece of the business that does not have to be re-sold from scratch every month.

Retainer-based revenue also appears to hold up meaningfully better over time than project-based revenue. Industry churn analysis synthesized across 2026 sources found retainer-based agencies churning around 18% annually versus roughly 42% for project-based shops, a gap described as directional and drawn from secondary aggregator sources rather than a single disclosed-methodology study, but consistent in direction with top-performing retainer shops reportedly holding churn as low as 8% to 10%.

The practical read for new-business strategy is straightforward: an agency chasing a steadier MRR base should be optimizing new-business efforts toward retainer conversions specifically, not just booking any signed deal, project or retainer, as an equal win. A project-heavy new-business quarter can look identical to a retainer-heavy one on a single month's invoice total while representing very different underlying revenue stability.