MRR

MRR (Monthly Recurring Revenue) is the normalized monthly value of a subscription business's recurring revenue at a point in time. It's calculated as the sum of all monthly-normalized subscription contracts: a monthly subscription contributes its full monthly fee; an annual contract is divided by 12 to get its monthly contribution. MRR is used heavily by month-billed SaaS companies and consumer subscription businesses where monthly granularity matters for operating decisions. It is mathematically equivalent to ARR (MRR × 12 = ARR) but with different operational implications because monthly tracking captures shorter-cycle business dynamics. It's the alternative to ARR most useful at consumer subscription, SMB SaaS, and month-to-month businesses.

The MRR calculation:

Basic formula:

• MRR = sum of (monthly-normalized contract value) for all active subscription customers.
• Monthly contracts: full monthly fee.
• Annual contracts: annual contract value / 12.
• Quarterly contracts: quarterly fee / 3.

MRR vs ARR (when to use which):

MRR is more useful when:

• Customers are predominantly on monthly contracts.
• Customer behavior cycles are short (consumer subscriptions, SMB SaaS).
• Operating decisions need monthly granularity.
• Churn and retention happen on monthly cycles.

ARR is more useful when:

• Customers are predominantly on annual or multi-year contracts.
• Investor-facing reporting (enterprise SaaS valuation is in ARR).
• Annual growth is the more meaningful trajectory measure.
• Customer cycles align with annual contract renewals.

Many companies use both:

• Internally track MRR for operating decisions.
• Externally report ARR for investor materials.
• The metrics are mathematically equivalent (ARR = MRR x 12).

Standard MRR breakdown (similar to ARR):

New MRR: MRR added from new customers in a month.

Expansion MRR: MRR added from existing customers (upsells, plan upgrades, seat additions).

Reactivation MRR: MRR from previously-churned customers who returned.

Churned MRR: MRR lost from customers who fully canceled.

Contraction MRR: MRR lost from existing customers (downgrades, seat reductions).

Net New MRR: New + Expansion + Reactivation - Churn - Contraction.

Monthly Net Revenue Retention: similar to NRR but calculated monthly.

Where MRR shines:

Consumer subscription businesses (Netflix, Spotify, Disney+):

• Customers on monthly cycles.
• Churn happens monthly.
• Decisions about pricing, content, marketing made on monthly cycles.
• MRR is the natural cadence for tracking and reporting internally.

SMB-focused SaaS (small business tools, freelancer products):

• Customers often on monthly subscriptions.
• Higher churn rates than enterprise SaaS.
• Monthly cohort analysis reveals patterns annual data doesn't.

Usage-based and hybrid models:

• Pure usage-based isn't strictly "recurring" but stable usage can be tracked as MRR.
• Hybrid (subscription + usage) models often track MRR for the subscription portion.

MRR pitfalls (similar to ARR):

• Including non-recurring fees padding the number.
• Not netting against churn when reporting growth.
• Including stale or expired customer ARR.
• Currency aggregation issues for international customers.

What founders get wrong: Reporting MRR growth without showing the underlying composition (new vs expansion vs reactivation vs churn vs contraction). The right discipline: track all components separately, report with composition transparency, monitor net retention and churn trends, and reconcile periodically between MRR and other revenue metrics. Top-line MRR can hide unhealthy underlying dynamics.

Related: ARR · Revenue Recognition · Net Revenue Retention · Churn Rate · Financial Model

FAQ

What is MRR?
Monthly Recurring Revenue: the normalized monthly value of a subscription business's recurring revenue at a point in time. Calculated as the sum of monthly-normalized subscription contracts (monthly fee for monthly contracts; annual contract value / 12 for annual contracts).

MRR or ARR, which should I use?
Depends on business model. MRR for monthly-billed customers, consumer subscriptions, SMB SaaS where monthly cycles dominate. ARR for annual or multi-year contracts, enterprise SaaS where annual cycles dominate, and investor-facing reporting. Many companies use both: MRR internally, ARR externally. Mathematically equivalent (ARR = MRR x 12).

What components should I break MRR into?
New MRR (new customers), Expansion MRR (existing customers growing), Reactivation MRR (returning customers), Churned MRR (full cancellations), Contraction MRR (downgrades, seat reductions), Net New MRR (the bottom-line growth). Composition transparency reveals customer-base health that top-line MRR can hide.