Contraction MRR

Contraction MRR is the monthly recurring revenue a subscription business loses from customers who stay but reduce what they pay. It counts downgrades to a lower plan, dropped seats or units, removed add-ons, and new discounts, but not customers who cancel entirely, since those are instead bucketed into to churned MRR.

Contraction sits alongside expansion as the two ways an existing customer's recurring revenue can move. Where expansion measures accounts growing, contraction measures accounts shrinking without leaving. Reading them separately from new business and from churn is what lets a finance team see whether the customer base is holding its value.

A subscription platform such as Recurly records the plan changes, quantity changes, and discounts that produce contraction, so the movement can be measured rather than estimated.

Why contraction MRR matters for subscription businesses

Contraction often acts as an early warning sign as accounts that shrink frequently go on to churn entirely. A customer who downgrades or drops seats is signaling reduced value or budget pressure, and catching that pattern gives customer success a chance to intervene before the account leaves entirely. Tracking contraction on its own, rather than netting it against expansion, keeps that signal visible.

It also makes revenue math more accurate. Net revenue retention depends on subtracting both contraction and churn from the starting base after adding expansion, so a business that ignores contraction will overstate how well its existing customers are performing. Separating the line makes forecasts and retention targets more honest.

How contraction MRR works

Contraction is measured only for customers who were active at the start of the period and remained active while reducing their recurring spend. The common sources are:

• Downgrades from a higher plan or tier to a lower one.

• Reductions in seats, licenses, or units on an existing subscription.

• Removal of add-ons or optional modules.

• New or increased discounts that lower the recurring amount billed.

A customer who cancels outright is not contraction; that loss is churned MRR. Keeping the two seperate matters, because a downgrade still leaves a paying customer to retain and grow, while a cancellation does not.

How to calculate contraction MRR

Contraction MRR is the sum of the recurring decreases from retained customers over the period. Written as a plain formula:

Contraction MRR = Downgrade losses + Reduced-quantity losses + Removed add-on losses + Added discounts (from retained customers, over the period)

It is often read together with expansion as net MRR movement from the existing base:

Net MRR movement = Expansion MRR - Contraction MRR - Churned MRR

And it is one of the terms in net revenue retention:

Net revenue retention = (Starting MRR + Expansion MRR - Contraction MRR - Churned MRR) / Starting MRR

To calculate contraction MRR for a period:

1. Identify the customers who were active at the start of the period and are still active at the end.

2. For each, find the decrease in their recurring charge from downgrades, reduced quantities, removed add-ons, or new discounts.

3. Exclude customers who cancelled entirely, which is churned MRR.

4. Exclude increases, which are expansion.

5. Add the decreases together to get total contraction MRR for the period.

Illustrative example (hypothetical numbers):

• Starting base: 200 retained customers contributing 80,000 dollars in starting MRR.

• During the month, 15 customers downgrade, each reducing their charge by 100 dollars.

• Separately, 8 customers drop a 50 dollar add-on.

• No retained customer increases spend, and cancellations are counted elsewhere as churn.

Downgrade contraction is 15 times 100 dollars, or 1,500 dollars. Add-on contraction is 8 times 50 dollars, or 400 dollars. Total contraction MRR is 1,500 plus 400, or 1,900 dollars. Against 80,000 dollars of starting MRR, that is a contraction rate of 1,900 divided by 80,000, or about 2.4 percent for the month.

Benefits and examples

Tracking contraction MRR as its own line gives a subscription business several advantages:

• An early churn signal, since downgrades and dropped seats often precede a full cancellation.

• Honest retention math, because contraction is subtracted rather than hidden inside a net figure.

• A target for customer success, who can focus on accounts that are shrinking but still savable.

• Better product and pricing feedback, as patterns in what customers drop point to where value is thin.

For example, a company might show flat net revenue while a rising contraction line reveals that expansion is masking a growing number of downgrades. Reporting contraction as its own line makes that trend visible early enough for a team to act on it. Recurly captures the underlying plan and quantity changes so the contraction line can be built from actual billing events.

Frequently asked questions

What is the difference between contraction MRR and churn MRR? Contraction MRR is revenue lost from customers who stay but pay less, through downgrades, dropped seats, removed add-ons, or discounts. Churned MRR is revenue lost from customers who cancel entirely. Both reduce recurring revenue, but only churn removes the customer.

What causes contraction MRR? The usual causes are downgrades to a lower plan, reductions in seats or units, removal of optional add-ons, and new discounts that lower the billed amount. Each leaves a paying customer whose spend has decreased.

Is contraction MRR always bad? It reduces recurring revenue, but it can be less damaging than churn because the customer relationship continues and can be grown again. A downgraded customer is still a customer to serve, retain, and expand.

How does contraction MRR affect net revenue retention? Net revenue retention subtracts both contraction and churn from the starting base after adding expansion, so higher contraction lowers net revenue retention. Tracking it separately keeps the retention picture accurate.