What Is Monthly Recurring Revenue?
MRR is the normalized monthly value of all active subscriptions. It's the heartbeat metric for SaaS founders — what you gained, what you lost, and whether you're growing.
Definition
Monthly Recurring Revenue (MRR) is the predictable, normalized monthly revenue from all active subscribers. Annual plan customers are divided by 12 (a $1,200 annual plan = $100 MRR). MRR only includes recurring components — not one-time setup fees, professional services, or overage charges.
MRR is tracked with four components: New MRR (from new customers), Expansion MRR (upsells/upgrades of existing customers), Churned MRR (cancellations), and Contraction MRR (downgrades). Net New MRR = New + Expansion - Churned - Contraction. This breakdown tells you which lever to pull.
For early-stage SaaS, MRR is the daily operational metric. Founders track it in real-time. The classic early traction benchmark: $10K MRR ($120K ARR) is proof of concept; $100K MRR ($1.2M ARR) shows real market demand and is often when Series A conversations start.
Real-World Example
A SaaS company starts the month with $80K MRR. They add $12K from new customers, $3K from upsells, but lose $5K to churn and $1K to downgrades. Net New MRR = $12K + $3K - $5K - $1K = +$9K. End of month MRR: $89K. MRR growth rate: 11.25% month-over-month.
Why It Matters
MRR is the heartbeat of a SaaS business — it's the most granular, real-time measure of business health. A declining MRR despite adding new customers means churn is accelerating and the business is a leaky bucket.
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Frequently Asked Questions
How do I calculate MRR for annual subscribers?
Divide their annual contract value by 12. A customer paying $2,400/year contributes $200/month to MRR. This normalization lets you compare and aggregate customers on different billing cycles.
What is a good MRR growth rate?
Early-stage SaaS targeting VC funding typically needs 10-20% month-over-month growth to stand out. At $100K+ MRR, 5-10% monthly is strong. Public SaaS companies growing MRR at 3-5% monthly (40-80% annually) are considered high-growth.
What is the difference between MRR and revenue?
MRR is a forward-looking metric showing run-rate predictable revenue. GAAP revenue is what's recognized under accounting standards — for annual upfront plans, that's often recognized ratably. MRR > GAAP revenue for deferred annual contracts; MRR < GAAP revenue during a usage-based billing spike.
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