Direct Answer
Monthly Recurring Revenue (MRR) is the predictable, recurring subscription revenue a business expects to receive in a given month. Analysts break it into new, expansion, contraction, and churned MRR to see what's actually driving month-over-month change, and typically multiply MRR by 12 to get annual recurring revenue (ARR), the figure most often cited for subscription-business growth.
Key Takeaways
- MRR captures only recurring subscription revenue normalized to a monthly figure - one-time fees, setup charges, and non-recurring services don't belong in it.
- The four components - new, expansion, contraction, and churned MRR - reconcile the change from last month's total to this month's total.
- ARR is MRR annualized (MRR × 12), and it's the number most commonly quoted in growth headlines, funding announcements, and public SaaS company reporting.
- Net new MRR (new + expansion − contraction − churn) can be positive or negative even when gross new sales look strong.
- Expansion MRR from existing customers is generally cheaper to generate than new MRR from new customer acquisition.
- A rising headline MRR number can mask a shrinking customer base if expansion from a few large accounts offsets churn among many smaller ones.
- MRR is a business-reporting and SaaS-metrics concept - it is not a line item defined by GAAP or IFRS, so definitions can vary slightly between companies.
What Makes Up MRR?
MRR starts from every active subscription contract, converts each one to its monthly-equivalent value, and sums them. An annual contract of $1,200 contributes $100 to MRR; a quarterly contract of $300 also contributes $100. The point of normalizing to a monthly figure is comparability - a business can look at MRR side by side month after month regardless of how individual customers happen to be billed.
The more useful part of MRR reporting isn't the total, it's the bridge between two months' totals. That bridge has four pieces:
- New MRR - recurring revenue from customers who signed up during the month.
- Expansion MRR - additional recurring revenue from existing customers who upgraded plans, added seats, or bought add-ons.
- Contraction MRR - recurring revenue lost from existing customers who downgraded but did not fully cancel.
- Churned MRR - recurring revenue lost from customers who canceled entirely.
Ending MRR for the month equals starting MRR, plus new MRR, plus expansion MRR, minus contraction MRR, minus churned MRR. Because the formula is additive, each component can be tracked and trended separately, which is where the diagnostic value lives.
A Worked Example
Suppose a subscription business starts a month with $500,000 in MRR. During the month:
- New MRR: $40,000 from new customers
- Expansion MRR: $25,000 from existing customers upgrading
- Contraction MRR: $10,000 from existing customers downgrading
- Churned MRR: $30,000 from customers who canceled
Ending MRR = $500,000 + $40,000 + $25,000 − $10,000 − $30,000 = $525,000. Net new MRR for the month is $25,000, and the month-over-month MRR growth rate is $25,000 ÷ $500,000 = 5%. Annualized, that $525,000 MRR figure implies ARR of $525,000 × 12 = $6,300,000. Note that "annualizing" the current MRR run-rate this way is a snapshot projection, not a forecast that guarantees the next twelve months will actually produce that revenue - it assumes the current run-rate holds constant, which real businesses rarely do exactly.
Why the Breakdown Matters More Than the Total
A single MRR figure moving up tells an investor or operator almost nothing about durability. A company could hit the same net new MRR two different ways: broad-based new customer growth with modest churn, or a handful of large accounts expanding while a much larger number of small accounts quietly cancel. The second pattern is far riskier - it depends on concentrated relationships continuing to expand, and it can reverse quickly if even one or two large accounts churn.
Watching churned and contraction MRR as a share of starting MRR (sometimes framed as a revenue churn rate) also flags retention problems earlier than customer-count churn alone, since it weights lost accounts by dollar value rather than treating a $50/month cancellation the same as a $50,000/month one.
Limitations and Common Mistakes
- Not a GAAP figure. MRR and ARR are operating metrics, not revenue recognized under accounting standards - a company's reported GAAP revenue for a period can differ from its MRR-implied run-rate.
- Inconsistent definitions across companies. Some businesses include usage-based or variable fees in MRR, others exclude them; comparing MRR figures across companies without checking the definition can be misleading.
- Annualizing assumes a static run-rate. Multiplying MRR by 12 to get ARR is a snapshot, not a promise - it ignores seasonality, known upcoming churn, or planned price changes.
- One-time and non-recurring revenue creeping in. Including setup fees, professional services, or one-time upsells inflates MRR and overstates the predictable base.
- Ignoring the components. Reporting only the net MRR change hides whether growth is coming from new logos, expansion, or simply less churn than usual - each has very different implications for the business.
Frequently Asked Questions
What is Monthly Recurring Revenue (MRR)?
Monthly Recurring Revenue (MRR) is the predictable, recurring subscription revenue a business expects to receive in a given month. It excludes one-time fees and is normalized to a monthly figure even for annual or multi-month contracts.
How is MRR different from ARR?
ARR (annual recurring revenue) is simply MRR annualized, typically by multiplying MRR by 12. MRR is used for month-over-month tracking of a subscription business, while ARR is the more commonly cited top-line growth figure.
What are new, expansion, contraction, and churned MRR?
These are the four components that explain month-over-month MRR change. New MRR comes from new customers, expansion MRR from existing customers upgrading or adding seats, contraction MRR from existing customers downgrading, and churned MRR from customers who cancel entirely.
Can MRR go down even if new sales are strong?
Yes. If contraction and churned MRR in a given month exceed new and expansion MRR combined, total MRR falls even while the sales team is closing new business, which is why the breakdown matters more than the single headline number.
How should the components of the recurring revenue change be read together?
New revenue from added customers, expansion from existing ones, contraction from downgrades, and churn from departures each tell a different part of the story. Strong new revenue with heavy churn indicates an acquisition treadmill, while modest new revenue with strong expansion indicates a durable base. The net figure conceals which pattern is operating.
What non-recurring revenue is sometimes included in this metric?
Implementation fees, professional services, usage-based overages, and one-time charges are all sometimes folded into the figure despite not recurring by contract. Companies disclose their definition, and one including such items reports a higher and less durable figure. This is one of the definitional differences that makes cross-company comparison unreliable.
How does usage-based pricing complicate a recurring revenue metric?
Revenue that varies with customer consumption is not contractually recurring even though it repeats, so companies with consumption pricing either exclude it, include an estimate, or report a separate measure. The choice materially affects the reported figure and its stability. Businesses shifting from subscription to consumption pricing often see the metric become less meaningful for exactly this reason.
Why can this metric fall while new sales are strong?
Because the net change combines new and expansion revenue against contraction and churn, so heavy downgrades or departures can outweigh strong acquisition. This is a common pattern when existing customers reduce usage during a difficult period while new sales continue. The component breakdown is what identifies it, and the aggregate figure alone would suggest a sales problem.
How should annual contracts be converted into a monthly recurring figure?
By dividing the annual contract value by twelve, which produces a monthly equivalent regardless of when the customer is invoiced. This separates the revenue run rate from the billing schedule. A company that reports the figure without normalising for contract length produces a series that jumps with billing timing rather than describing the underlying run rate.
References
This page is educational content, not investment, tax, or accounting advice. MRR and ARR are operating metrics, not figures defined by GAAP or IFRS, and definitions can vary between companies. Always verify a specific company's metric definitions in its own disclosures before relying on them.