MRR (monthly recurring revenue) is the normalized monthly value of all active recurring subscriptions a company holds at a given moment, excluding one-time fees and variable charges that are not committed. Among SaaS metrics it is the central operating number, because it shows the predictable revenue base a subscription business can count on next month.
MRR is a management metric, not an accounting standard. It differs from recognized revenue in financial statements and from cash collected, and companies define its edges slightly differently. Used consistently, it shows growth, momentum and the effect of churn more clearly than any other single figure.
How MRR is calculated
The basic formula sums the monthly-equivalent value of every active subscription. Monthly plans count at their monthly price. Annual or multi-year plans are divided into monthly amounts: an annual contract of 12,000 contributes 1,000 to MRR, even if the customer paid the full year in advance.
Discounts reduce MRR to what the customer actually pays. Taxes, setup fees, professional services and one-off purchases are excluded, because they do not recur. Usage-based charges are handled differently across companies; many include only a committed minimum or a trailing average and state the method explicitly.
| Item | Included in MRR | Reason |
|---|---|---|
| Monthly subscription fee | Yes, at the net price paid | Committed recurring revenue |
| Annual contract | Yes, divided by 12 | Normalized to a monthly value |
| Discount or coupon | Yes, as a reduction | MRR reflects actual price |
| Setup or onboarding fee | No | One-time charge |
| Professional services | No | Not recurring |
| Variable usage overage | Depends on policy | Not committed, so often excluded or averaged |
| Sales tax or VAT | No | Collected for authorities, not revenue |
The components of MRR movement
The most useful view of MRR is not the total but its monthly movement, split into components. This breakdown shows whether growth comes from new customers, from existing customers spending more, or is being eroded by cancellations.
| Component | Definition | Effect |
|---|---|---|
| New MRR | From customers acquired this month | Increase |
| Expansion MRR | Upgrades, extra seats, add-ons from existing customers | Increase |
| Reactivation MRR | Former customers who return | Increase |
| Contraction MRR | Downgrades or fewer seats | Decrease |
| Churned MRR | Revenue from customers who cancel | Decrease |
Net new MRR equals new plus expansion plus reactivation, minus contraction and churned MRR. A company adding 20,000 in new MRR while losing 15,000 to churn grows far more slowly than its sales figures suggest, which is exactly what this view reveals.
MRR compared with related SaaS metrics
MRR feeds most other subscription metrics. Knowing how it relates to its neighbors prevents double counting and misleading comparisons.
| Metric | Relation to MRR | Typical use |
|---|---|---|
| ARR | Usually MRR multiplied by 12 | Annual view for larger, contract-based companies |
| ARPU | MRR divided by active customers or users | Price level and segment comparison |
| Revenue churn rate | Churned and contraction MRR divided by starting MRR | Speed of revenue loss |
| NRR | MRR retained from a cohort including expansion | Health of the existing customer base |
| SaaS quick ratio | Gains in MRR divided by losses in MRR | Efficiency of growth |
| Recognized revenue | Accounting figure under revenue standards | Financial reporting |
MRR is the natural unit for companies with mostly monthly plans and smaller customers. Businesses selling multi-year enterprise contracts usually prefer ARR, although both describe the same recurring base on different time scales.
Using MRR to steer a business
Founders and investors watch the month-over-month MRR growth rate. Early-stage companies can grow MRR by double-digit percentages per month from a small base, while mature companies grow more slowly in percentage terms. Growth rates always need context: absolute net new MRR and the trend over several months matter more than a single strong month.
MRR also supports planning. Because it is recurring, it gives a reasonable forecast of next month’s revenue, helps size hiring and spending, and underpins valuation discussions, where recurring revenue is typically valued at a multiple that depends on growth, retention and margins.
Measuring MRR reliably
In practice MRR is calculated from the billing or subscription management system, not from the bank account or the general ledger. The system knows each subscription’s plan, price, discount, start date and status, which is exactly the data MRR needs. Spreadsheets work for very small companies but become error-prone once plan changes and proration are frequent.
Several edge cases need an explicit policy. Multiple currencies should be converted at a fixed rate for trend reporting, otherwise exchange-rate swings appear as growth or churn. Paused subscriptions and customers in a grace period after a failed payment should be treated consistently, either excluded until they pay again or flagged separately. Mid-month upgrades are usually counted at the new monthly rate from the change date, so the end-of-month MRR reflects the current commitment.
The safest approach is to write the definition down once, apply it every month and reconcile MRR against recognized revenue each quarter. Small differences are normal because the two measure different things, but a growing gap usually signals a calculation error.
Common MRR mistakes
Because MRR has no single official definition, the biggest risk is inconsistent or inflated calculation. Investors and acquirers routinely recalculate MRR from billing data, and discrepancies damage credibility.
- Counting annual payments as one month’s MRR: a 12,000 annual deal is 1,000 MRR, not 12,000.
- Including one-time fees: setup and services revenue inflate the recurring base.
- Ignoring discounts: list prices overstate what customers actually pay.
- Counting signed but not started contracts: committed future revenue belongs in a separate backlog figure.
- Keeping free trials or failed payments in MRR: only paying, active subscriptions should count.
- Changing the definition silently: any change in method must be stated so trends remain comparable.
In simple terms
MRR is the amount of money a subscription company can expect to receive every month from its current customers, if nothing changes. It leaves out one-time payments and counts only the regular fees.
It works like a household that adds up all its reliable monthly income, such as salaries and rent from a tenant, while ignoring a one-off bonus. Watching how that number changes each month shows whether the business is truly growing or quietly shrinking.
A practical example
A SaaS company selling scheduling software starts the month with MRR of 80,000. During the month it signs new customers worth 9,000, existing customers add seats worth 3,000, a few downgrade for 1,000, and cancellations remove 4,000.
Net new MRR is therefore 7,000, and the month ends at 87,000, growth of about 8.8 percent. The founders notice that churn has risen for two months in a row and that most cancellations come from the smallest plan. They improve onboarding for that plan, and over the next quarter churned MRR falls by roughly a third, lifting growth without extra sales spending.