MRR Growth vs Net Revenue Retention
Compare total MRR growth with net revenue retention and understand how new sales and existing-customer changes affect each metric.
MRR growth and net revenue retention both track subscription revenue change, but they answer different questions. MRR growth includes new customers; NRR focuses only on the customers and revenue present at the start of the period.
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About MRR Growth vs Net Revenue Retention
MRR growth and net revenue retention both track subscription revenue change, but they answer different questions. MRR growth includes new customers; NRR focuses only on the customers and revenue present at the start of the period.
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Key Factors
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Evaluating overall subscription growth
Compare measures when the goal is to understand whether total monthly recurring revenue increased.
| Factor | Option A: MRR Growth Rate | Option B: Net Revenue Retention | What It Means |
|---|---|---|---|
| Includes new customer MRR | Yes | No | Total MRR growth captures new business as well as changes in existing accounts. |
| Measures total MRR change | Yes | Partly | NRR intentionally excludes the impact of new customer revenue. |
| Shows existing-base health | Indirectly | Yes | NRR isolates expansion, contraction and churn from the starting base. |
| Formula basis | Ending MRR compared with starting MRR | Starting MRR after existing-customer movements | Each formula is appropriate for a different reporting question. |
| Can be positive while retention is weak | Yes | Not applicable | Strong new sales can mask losses in existing-customer revenue when reviewing total growth alone. |
Use MRR growth to describe total monthly recurring revenue performance, and pair it with NRR to see whether existing customers are expanding or shrinking.
Classifying customer revenue losses
Compare contraction and churn when recording negative MRR movements.
| Factor | Option A: Contraction MRR | Option B: Churned MRR | What It Means |
|---|---|---|---|
| Customer status | Customer remains active | Customer cancels completely | The correct category depends on whether the subscription remains active. |
| Typical cause | Downgrade, fewer seats or lower plan | Cancellation or non-renewal | Both reduce MRR but describe different customer outcomes. |
| Effect on ending MRR | Subtracts MRR | Subtracts MRR | Both amounts reduce ending MRR by their recorded value. |
| Effect on NRR | Reduces NRR | Reduces NRR | Both are existing-base revenue losses. |
| Usefulness for analysis | Shows partial spend reduction | Shows complete account loss | Keeping them separate can reveal whether losses are from downgrades or cancellations. |
Contraction and churn both lower MRR, but they should not be treated as interchangeable because they represent different changes in customer status.
Using MRR versus ARR run rate
Compare monthly recurring revenue with annualized recurring revenue for reporting context.
| Factor | Option A: Ending MRR | Option B: ARR Run Rate | What It Means |
|---|---|---|---|
| Time period | Monthly recurring amount | Annualized amount | Both are based on recurring revenue but expressed over different time frames. |
| Calculation | Monthly ending balance | Ending MRR multiplied by 12 | ARR is derived directly from ending MRR in this calculator. |
| Sensitivity to monthly movements | Shows the direct monthly balance | Magnifies the annualized effect | A small MRR change becomes twelve times larger when stated as ARR. |
| Forecast of actual annual revenue | No | No | Neither metric guarantees future revenue because customer behavior can change. |
MRR is the monthly recurring revenue balance, while ARR expresses that same ending run rate on an annualized basis.
Key Differences at a Glance
MRR growth includes new customers; NRR excludes them.
Expansion increases existing-customer MRR, while contraction reduces it without a full cancellation.
Churned MRR reflects complete customer cancellations.
ARR is ending MRR multiplied by 12, not a guarantee of future revenue.
A positive MRR growth rate can occur alongside NRR below 100% when new sales offset existing-base losses.
How to Decide
Assumptions
- All compared metrics use the same currency and monthly reporting period.
- NRR is calculated from starting MRR and excludes new-customer MRR.
- ARR is based on ending MRR multiplied by 12.
- Customer movements are classified consistently as new, expansion, contraction or churn.
Related Comparisons
Frequently Asked Questions
Is MRR growth more important than net revenue retention?
They serve different purposes. MRR growth shows total revenue change, while NRR shows the health of the existing customer base.
Can NRR be above 100% while total MRR declines?
Yes. Existing-customer expansion could be positive while new sales are low and other reporting movements or timing affect total MRR; consistent classification is important.
Should contraction and churn be combined?
They can be combined for a total loss figure, but keeping them separate usually provides more useful operational insight.
Why multiply MRR by 12 for ARR?
Multiplying by 12 converts a monthly recurring run rate into an annualized run-rate figure.
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