Revenue churn rate shows how much recurring revenue you lose, not how many customers.

Definition

Revenue churn rate is the percentage of the MRR you had at the start of a period that was lost to cancellations and downgrades; the net version first subtracts expansion from existing customers.

It matters because customers are not all worth the same.

Losing ten small accounts and losing one large account can cost the same dollars and look very different in a customer count. Revenue churn measures the dollars.

Read it beside customer churn. If customer churn is high and revenue churn is low, small accounts are leaving and large ones are staying. If it is the other way round, a few large accounts left or many customers downgraded.

Divide the MRR you lost by the MRR you started with.

gross revenue churn = (churned MRR + contraction MRR) ÷ starting MRR × 100
net revenue churn = (churned MRR + contraction MRR − expansion MRR) ÷ starting MRR × 100

Churned MRR comes from customers who left. Contraction MRR comes from customers who stayed and now pay less. Expansion MRR is what existing customers added through upgrades.

Worked example, with made-up round numbers

You start the month at $80,000 of MRR. Cancellations take away $2,400 and downgrades $800. Upgrades from existing customers add $1,600.

  • Gross: ($2,400 + $800) ÷ $80,000 × 100= 4%
  • Net: ($3,200 − $1,600) ÷ $80,000 × 100= 2%

Net revenue churn goes below zero when expansion is larger than the losses.

If expansion in the example were $4,000 and not $1,600, net revenue churn would be ($3,200 − $4,000) ÷ $80,000, which is -1%. That is net negative churn: the customers you started with pay more at the end of the month than at the start, before any new sale.

David Skok treats net revenue churn above 2% a month as a warning sign.

In his guide SaaS Metrics 2.0, investor David Skok writes that net revenue churn above 2% per month is an indicator that something is wrong in the business, and that at 2% monthly churn you lose about 22% of your revenue every year.

Source: David Skok, “SaaS Metrics 2.0”, forentrepreneurs.com, read 13 October 2026.

You lower it by keeping your largest accounts and growing the rest.

  • Know which accounts carry the revenue. List customers by MRR and give the top of the list a named owner and regular contact.
  • Catch downgrades early. Watch for falling seats or usage, and talk to the customer before the plan changes.
  • Collect failed payments on large invoices first. A failed annual renewal can outweigh dozens of monthly ones. See payment recovery rate.
  • Build expansion into the pricing. Seats, volume and add-ons give revenue a way to grow inside an account. See expansion MRR.

These mistakes blur revenue churn.

  • Reporting only the net number. Strong expansion can hide heavy losses. Show gross and net together.
  • Dividing by ending MRR. The base is the MRR you started the period with, before new sales.
  • Counting new customers' revenue as expansion. Only customers who were paying at the start can offset churn.
  • Multiplying a monthly rate by 12. Revenue churn compounds like customer churn. Use the compounding formula for a yearly rate.
Free tool: churn rate calculatorEnter starting MRR, cancellations, downgrades and expansion to get gross and net MRR churn by month and by year.

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