Net MRR churn

Net MRR churn is the share of monthly recurring revenue a business loses over a period from cancellations and downgrades, after subtracting the expansion revenue it gains from existing customers in the same period. It measures the net change in recurring revenue within the current customer base, so growth from upgrades offsets the losses from churn. Because expansion is netted in, net MRR churn can turn negative, a state often called net negative churn, when upgrades and cross-sells outweigh what the base loses. That is a powerful position: the existing customer base grows on its own even before new sales. Net MRR churn should be read alongside gross MRR churn, which strips out expansion and shows losses on their own. A subscription platform such as Recurly records the upgrades, downgrades, cancellations, and reactivations that feed both figures so expansion can be measured against loss over a consistent period.

Why net MRR churn matters for subscription businesses

Net MRR churn shows whether a business can grow recurring revenue from customers it already has. When the metric is low or negative, existing accounts contribute growth on their own, which lowers the pressure on new sales and compounds over time. When it is high, new revenue is being poured into a leaking base. It matters for a few reasons:

• It reflects the combined effect of retention and expansion, which is what actually drives durable growth.

• It signals product depth, since customers only expand when a product keeps delivering more value.

• It shapes valuation and forecasting, because a base that expands faster than it churns signals a positive trajectory for the business.

How to calculate net MRR churn

Net MRR churn is calculated as a rate over a period, usually a month, that nets expansion against losses.

Net MRR churn rate = (Churned MRR + Downgrade MRR - Expansion MRR) / MRR at start of period x 100 Where:

• Churned MRR is recurring revenue lost from customers who cancel.

• Downgrade MRR is recurring revenue lost from customers who move to a cheaper plan or reduce quantity.

• Expansion MRR is recurring revenue gained from existing customers through upgrades, added seats, or cross-sells.

• MRR at start of period is the recurring revenue on the books at the beginning of the period.

A negative result means the base grew, and is reported as net negative churn. To calculate it:

1. Take total MRR at the start of the period.

2. Add up MRR lost to cancellations during the period.

3. Add up MRR lost to downgrades during the period.

4. Add up expansion MRR from existing customers during the period.

5. Subtract expansion from the sum of cancellations and downgrades.

6. Divide that result by starting MRR and multiply by 100.

Illustrative example (hypothetical figures):

• MRR at start of month: $100,000

• MRR lost to cancellations: $6,000

• MRR lost to downgrades: $2,000

• Expansion MRR from existing customers: $5,000

Net MRR churn rate = (6,000 + 2,000 - 5,000) / 100,000 x 100

= 3,000 / 100,000 x 100

= 3%

If expansion in the same month had instead been $9,000, the calculation would be (6,000 + 2,000 - 9,000) / 100,000 x 100 = -1,000 / 100,000 x 100 = -1%, a net negative churn month where the base grew despite the cancellations.

How to use net MRR churn

Track net MRR churn on the same period and cohorts as gross MRR churn so the two can be compared directly. The distance between them is the contribution of expansion, and it tells you how much of your retention story depends on upsell. A low net figure sitting on top of a high gross figure means expansion is carrying the load, which is worth understanding before assuming the base is healthy. Ways to use it:

• Compare net and gross MRR churn to size the expansion effect.

• Segment by cohort or plan to see which customers and contracts have a tendency to expand at the highest rate.

• Pair it with expansion tactics such as seat growth and usage upgrades, since these are the levers that push the metric toward and past zero.

Within the Recurly platform, expansion typically takes the form of:

• Plan upgrades

• Add-ons (fixed-price and usage-based)

• Quantity/seat expansion

• Multi-currency/geographic expansion

Benefits and examples

Net MRR churn captures retention and growth from the base in a single number, which makes it one of the clearest signals of a subscription business that compounds. A negative reading is a strong sign that the product earns more from customers the longer they stay, which is exactly the dynamic investors and operators look for.

For example, a business with $100,000 in starting MRR that loses $8,000 to cancellations and downgrades but gains $5,000 in expansion posts 3 percent net MRR churn. New sales only need to cover a $3,000 net gap to keep revenue flat, rather than the full $8,000 of gross loss. If expansion grew to $9,000, the base would expand by $1,000 on its own, and every new sale would add directly to growth.

Frequently asked questions

Can net MRR churn be negative? Yes. When expansion revenue from existing customers is larger than the revenue lost to cancellations and downgrades, net MRR churn is negative. This is called net negative churn and means the base grew without any new customers.

How is net MRR churn different from gross MRR churn? Gross MRR churn counts only losses from cancellations and downgrades. Net MRR churn subtracts expansion revenue from those losses, so it is always equal to or lower than gross churn for the same period.

Why track both net and gross MRR churn? Gross churn shows how much revenue is leaving the base, and net churn shows the result after expansion. Reading them together reveals whether growth is coming from keeping customers or from upselling the ones who stay.

What counts as expansion in net MRR churn? Expansion is recurring revenue gained from existing customers, such as upgrades to a higher plan, additional seats, or added products. One-time charges and new-customer revenue are not expansion and do not belong in the calculation.