MRR movements: what they are and how to analyze them

MRR movements are the breakdown of the monthly change in MRR into its causes. Instead of looking only at the final number, you separate every dollar that came in and every dollar that left, and you start to see why recurring revenue grew, stayed flat or fell.

This breakdown is what turns MRR from a scoreboard into a diagnosis. The total can rise while the company quietly loses customers, or stay flat while hiding an intense swap between gains and losses. Only by splitting the change into parts can you tell what is really happening to the base.

Every change in MRR over a period fits into five types of movement. Added together, they explain the difference between MRR at the start and at the end of the month:

• New MRR: recurring revenue from customers who just subscribed.
• Expansion MRR: upgrades, add-ons and increased usage from existing customers.
• Reactivation MRR: customers who started paying again after having cancelled.
• Contraction MRR: downgrades that reduce the amount paid, without a full cancellation.
• Churned MRR: revenue that disappears when a customer cancels entirely.

The first three (new, expansion, reactivation) add revenue; the last two (contraction and churn) subtract it. Expansion and churn are the most revealing: together they show whether the customer base grows or shrinks on its own, before any new sales.

The clearest way to see the movements is the waterfall chart (or MRR bridge): it starts from MRR at the beginning of the month, stacks the additions and subtracts the losses until it reaches MRR at the end. The sum of every movement is the net new MRR for the period.

An example that adds up. A SaaS starts the month with $100k of MRR and records:

• New MRR: +$12k
• Expansion MRR: +$8k
• Reactivation MRR: +$2k
• Contraction MRR: -$3k
• Churned MRR: -$7k

The net for the month is +$12k ($22k of additions minus $10k of losses), and end-of-month MRR is $112k. It is the waterfall that shows that, despite the growth, $10k of recurring revenue slipped away along the way.

Two numbers are often confused. Gross new MRR adds up only what was gained in the period: new plus expansion plus reactivation. Net new MRR takes from that total what was lost to contraction and churn.

• Gross new MRR = new + expansion + reactivation. In the example, $22k.
• Lost MRR = contraction + churn. In the example, $10k.
• Net new MRR = gross minus lost. In the example, $12k.

The difference matters because the gross figure measures the strength of the sales machine and the ability of the product to expand accounts, while the net figure measures the real growth of the base. Watching only the net hides how much acquisition effort is being spent just to plug the hole left by losses.

Two companies can close the month with the very same net new MRR and be in opposite situations. One grows almost entirely from new sales while losing its base to churn: it has to run faster and faster just to stay in place. The other grows from expansion of the customers it already has, with little loss, and gains scale without depending on acquisition alone.

That second situation is the signature of a healthy business, and it shows up in the industry data: the annual private SaaS survey by KeyBanc Capital Markets shows net revenue retention above 100%, meaning that on average expansion more than offsets losses. That is why Net Revenue Retention and MRR movements tell the same story from different angles: only the breakdown says whether growth comes from inside the base or from outside it.

Movements only become decisions when they are tracked closely and rebuilt from real subscription data, not from estimates. A simple routine:

• Rebuild each movement from the subscriptions and invoices in your gateway, comparing the state of each customer from one month to the next.
• Track the movements every week, not just at close, to catch a spike in contraction or churn early.
• Separate expansion from new: they call for different teams and tactics.
• Cross new MRR with CAC to know whether acquisition pays off.

When movements are rebuilt from scratch out of what actually happened to each subscription, they stop being an end-of-month report and become the dashboard that guides product, sales and retention throughout the period. They also feed ARR and the growth forecast.