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For the common SaaS annualized-run-rate convention, calculate current monthly recurring revenue (MRR) from active recurring subscriptions, then multiply it by 12: ARR = MRR × 12. First normalize every billing interval to a monthly equivalent, apply one consistent rule for active subscriptions, and exclude one-time services and fees. Always label the measurement date and definition, because ARR is also used for a stricter 12-month-contract measure.
Example: if normalized active MRR is $25,000 on the date you measure it, annualized ARR is $25,000 × 12 = $300,000. That is a run-rate calculation, not a forecast of what customers will necessarily pay or an accounting-revenue figure.
Decide which ARR definition you are reporting
“ARR” is used for two related measures. Mixing them makes otherwise accurate numbers impossible to compare, so put the convention in the report title, dashboard label, or footnote.
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|---|---|---|---|
| Annualized run rate | Current normalized MRR × 12 | What the active recurring base would represent over a year if it stayed unchanged | It annualizes even month-to-month subscriptions and does not guarantee renewal |
| Annual recurring revenue from 12-month-plus contracts | Recurring contract value for contracts lasting at least 12 months, expressed per year | How much recurring value is committed in qualifying contracts | It can exclude short-term subscriptions that are included in run-rate ARR |
ChartMogul describes annual contract value as total contract value divided by the number of contract years. For example, a $36,000 three-year recurring contract contributes $12,000 of annual contract value under that approach. A company may publish both measures, but it must name each one. As Nick Franklin, CEO of ChartMogul, puts it: “Just clarify what definition of ARR you’re using and all will be fine.”
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The core annualized-run-rate formula
Use this sequence when your company means ARR as an annualized run rate:
- Choose an as-of date. Decide whether the figure is measured at the end of a month, on a reporting date, or at another specific point in time.
- Define an active recurring subscription. Write down which subscription states count, such as active and paid, and how you treat trials, paused plans, past-due accounts, scheduled cancellations, and subscriptions that have started but are not yet billable.
- Normalize each recurring charge to a monthly amount. Monthly charges are already monthly MRR. Divide a quarterly recurring charge by three. For another interval, divide the recurring contract amount by the number of months it covers.
- Sum the normalized customer amounts. The result is current MRR for the selected population and date.
- Multiply MRR by 12. This produces annualized run-rate ARR in the reporting currency.
- Reconcile movements. Explain the change from the previous period through new subscriptions, expansions, contractions, and churn.
The equivalent shortcut is to annualize each customer’s recurring amount and then sum the customer values. Both methods produce the same result only when inclusion, discount, currency, tax, and status rules are identical for every customer.
Normalize billing intervals before adding subscriptions
Adding invoices with different billing cadences directly will overstate or understate the recurring base. Convert each recurring charge to a comparable monthly or annual amount first.
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Repair common Windows errors and clear accumulated junk for a smoother, more stable PC - no reinstall needed.Free scan · no reinstall| Billing arrangement | Recurring amount supplied | Monthly equivalent (MRR) | Annualized run rate |
|---|---|---|---|
| Monthly subscription | $2,400 per month | $2,400 | $28,800 ($2,400 × 12) |
| Quarterly subscription | $9,000 every quarter | $3,000 ($9,000 ÷ 3) | $36,000 ($9,000 × 4) |
| Annual subscription | $48,000 for 12 months | $4,000 ($48,000 ÷ 12) | $48,000 ($48,000 × 1) |
Stripe’s guidance gives the same annualization shortcuts: multiply a monthly payment by 12 and a quarterly payment by four. The cash-collection schedule does not change the recurring value. A customer who prepays a year is not worth twelve times as much as a customer paying monthly at the same effective monthly price.
Build the active recurring base
ARR should represent recurring subscription value that your stated policy treats as active and expected to recur. Create a row for every subscription or customer-plan combination and apply the same rules to all rows.
| Revenue item | Typical treatment in recurring ARR | Reason or policy question |
|---|---|---|
| Recurring subscription plan | Include when the subscription meets your active-state rule | This is the core recurring charge |
| Additional recurring seats or quantities | Include at the current recurring quantity | Quantity changes are expansion or contraction movements |
| Recurring discount | Usually calculate from the net recurring amount actually billed, if reporting net ARR | State whether your metric is list-price or net-of-discount |
| One-time implementation, setup, migration, or consulting fee | Exclude | It does not recur as part of the subscription |
| One-time usage charge | Exclude unless your published definition explicitly treats a predictable usage commitment as recurring | Variable usage requires a disclosed policy |
| Taxes and pass-through charges | Usually exclude from subscription value | Taxes are collected on behalf of a tax authority rather than earned subscription consideration |
| Free trial with no billable recurring amount | Exclude until it qualifies under the active-subscription rule | Including unconverted trials inflates the run rate |
| Canceled subscription | Exclude after the point at which your cancellation policy says recurring service has ceased | Define whether access through a paid period remains active |
There is no single universal answer for credits, refunds, delinquent accounts, usage-based plans, currencies, or future-dated contract starts. Choose a rule that fits the purpose of the report, apply it consistently, and document it beside the number.
Reconcile the change in ARR from one period to the next
A movement bridge makes the number auditable and explains why ARR changed. Start with the previous period’s MRR, classify every recurring-base change, and then annualize the ending MRR.
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Ending MRR = Beginning MRR + New MRR + Expansion MRR − Contraction MRR − Churned MRR
Ending ARR = Ending MRR × 12
| Movement | Meaning | Example |
|---|---|---|
| New | A customer or subscription becomes part of the active recurring base | A new $800-per-month customer adds $800 MRR |
| Expansion | An existing customer’s recurring amount increases through plan, quantity, or discount changes | Adding seats raises MRR by $250 |
| Contraction | An existing customer’s recurring amount decreases but remains active | A downgrade reduces MRR by $150 |
| Churn | A subscription is canceled or otherwise ceases to count under your subscription-state policy | A canceled $600-per-month plan removes $600 MRR |
Worked movement bridge
Suppose the beginning MRR is $25,000. During the period, new subscriptions add $3,000, expansions add $1,500, contractions remove $500, and churn removes $2,000.
- Beginning MRR: $25,000
- Plus new MRR: $3,000
- Plus expansion MRR: $1,500
- Minus contraction MRR: $500
- Minus churned MRR: $2,000
- Ending MRR: $27,000
- Ending annualized ARR: $27,000 × 12 = $324,000
The bridge should tie exactly to the subscription-level calculation. If it does not, investigate backdated changes, duplicate subscriptions, currency conversions, rounding, or a status rule applied differently in the two calculations.
Complete mixed-billing examples
Example: monthly, quarterly, and annual customers
Assume three active customers, all reported in U.S. dollars:
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| Customer | Billing term | Contracted recurring charge | Normalized MRR | Annualized ARR contribution |
|---|---|---|---|---|
| A | Monthly | $1,000 per month | $1,000 | $12,000 |
| B | Quarterly | $6,000 per quarter | $2,000 | $24,000 |
| C | Annual | $24,000 per year | $2,000 | $24,000 |
Total normalized MRR is $5,000, so annualized run-rate ARR is $60,000. The three customers contribute the same annualized value as the direct customer-by-customer calculation: $12,000 + $24,000 + $24,000.
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Example: strict 12-month-contract ARR
Assume one three-year recurring contract worth $36,000 in total and one 12-month recurring contract worth $12,000. Under the contract-value convention, annual recurring value is $36,000 ÷ 3 plus $12,000 ÷ 1, or $24,000. A month-to-month customer would be included in annualized run-rate ARR if active, but would not qualify for a strict 12-month-contract measure. Report the two numbers separately rather than blending them.
Decide how to treat discounts, credits, usage, and difficult account states
These choices can materially change ARR even when the underlying customer list is unchanged. The sources used for the core formula do not establish one policy that fits every business, so your methodology must state the choice.
List price versus net recurring price
A $1,000 plan with a permanent 20% discount can be reported as $1,000 list-price ARR or $800 net recurring ARR. Net ARR is closer to the recurring amount billed; list-price ARR can be useful for capacity or pricing analysis. Do not switch between the two in different periods.
Credits, refunds, and temporary concessions
Decide whether a credit reduces recurring ARR for the period it applies, whether a temporary concession is modeled only for its active months, and how a refund is connected to the subscription event. Record the effective date so the same credit is not deducted twice.
Variable or usage-based charges
A purely variable charge is not automatically recurring. You can exclude it from subscription ARR, include only a contracted minimum, or create a separately labeled committed-usage metric. If you include an estimate, identify the estimation method and do not present it as fixed subscription value.
Past-due, paused, and scheduled-to-cancel subscriptions
Set a status policy before calculating. For example, you might include an account while service remains active through a paid term, exclude it once service is suspended, and remove a scheduled cancellation at the end of the paid period. The important control is consistency, not a particular universal answer.
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Currency conversion
Choose a reporting currency and an exchange-rate policy, such as the rate on the measurement date or a documented period rate. Apply the same rate to all subscriptions in the calculation and disclose whether prior-period ARR was retranslated.
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Separate subscription consideration from sales tax, value-added tax, payment-processing fees, and other pass-through amounts. If your internal system stores a gross invoice total, use the recurring subscription component rather than blindly annualizing the invoice total.
Start dates, proration, and backdated changes
Use the recurring amount that is active on the as-of date under your policy. A one-time prorated first invoice is not itself a new recurring fee. Keep the effective date of upgrades, downgrades, and cancellations so the movement bridge agrees with the snapshot.
ARR is not cash collected or recognized accounting revenue
Annual billing determines when cash arrives; ARR annualizes the recurring subscription value. A customer paying $12,000 upfront and a customer paying $1,000 each month can each contribute $12,000 of annualized run rate when their effective recurring price is the same, even though cash timing differs.
ARR is an operational, forward-looking measure. It should not be presented as revenue recognized under GAAP. Financial statements follow accounting rules for performance obligations, service delivery, deferrals, refunds, and other matters. Use recognized revenue for accounting reporting and ARR for subscription-base analysis, and label the two separately in management materials.
Calculate ARR in a spreadsheet
A transparent spreadsheet is sufficient for a small recurring base if the source data and policy are controlled. Use one row per active subscription with columns such as:
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- Customer or account ID
- Subscription ID and plan
- Status on the as-of date
- Recurring amount
- Billing interval
- Discount or credit treatment
- Currency and conversion rate
- Effective start, change, and end dates
- Normalized MRR
- Annualized ARR contribution
For a monthly plan, set normalized MRR equal to the recurring monthly amount. For a quarterly plan, divide the recurring quarterly amount by three. For an annual plan, divide the 12-month amount by 12. Sum the normalized MRR column and multiply by 12. Keep one separate column for excluded one-time amounts so reviewers can see that they were intentionally left out.
For larger datasets, implement the same logic in a billing or data warehouse query: filter to the chosen active states, convert each interval to a monthly factor, apply currency conversion, aggregate by customer and then by reporting currency, and store the as-of date with the result. Subscription billing systems can automate plan and quantity changes, but the vendor does not determine your definition; your policy still needs to be documented.
Compare two ARR figures only after aligning definitions
Before comparing ARR between companies, products, or periods, check every axis below. A larger number may simply reflect a broader inclusion policy.
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|---|---|
| Definition | Is each figure annualized run rate or recurring value from contracts lasting at least 12 months? |
| Measurement date | Are the snapshots taken on the same date or at comparable period ends? |
| Active-subscription policy | Are trials, paused accounts, past-due accounts, and scheduled cancellations treated the same way? |
| Revenue scope | Are one-time services, implementation, and usage charges excluded consistently? |
| Price basis | Does the metric use list price, billed net price, credits, or discounts? |
| Currency | Are all values translated using the same currency and exchange-rate convention? |
| Contract changes | Are upgrades, downgrades, churn, renewals, and backdated amendments reflected as of the same effective date? |
Common calculation mistakes and fixes
- Annualizing invoices instead of recurring value: remove setup, consulting, tax, and other one-time lines before applying the factor.
- Adding quarterly or annual charges without normalization: divide by the months covered, then sum MRR.
- Counting canceled or unconverted trials: apply the active-state rule at the measurement date.
- Mixing list and net prices: choose one basis and keep it unchanged across periods.
- Calling cash collected ARR: separate payment timing from annualized subscription value.
- Reporting an unlabeled number: include the convention, as-of date, currency, and inclusion policy next to ARR.
- Ignoring movements: maintain a new, expansion, contraction, and churn bridge so unexplained changes can be investigated.
- Comparing incompatible definitions: align the seven comparison axes before drawing a growth or valuation conclusion.
Use an ARR reporting checklist
- Write the metric label, such as “Annualized run-rate ARR, as of 30 September 2026.”
- State that the formula is current normalized MRR × 12, or identify the 12-month-contract convention.
- List active statuses included and excluded.
- Confirm that recurring amounts are normalized by billing interval.
- Confirm the treatment of discounts, credits, variable usage, delinquency, taxes, and currencies.
- Remove one-time services and fees.
- Reconcile beginning MRR to ending MRR through new, expansion, contraction, and churn movements.
- Recalculate ARR independently from the ending subscription snapshot.
- Check that the movement bridge and snapshot agree after rounding.
- Keep ARR separate from recognized revenue, cash collected, bookings, and billings.
What the metric can and cannot tell you
ARR is useful for tracking the size and direction of a recurring subscription base. It can show the effect of new sales, upgrades, downgrades, and cancellations without being distorted by whether customers pay monthly or annually. It does not, by itself, show profitability, cash runway, recognized revenue, collection risk, implementation workload, renewal probability, or the cost of serving the base. Pair it with the other financial and customer metrics appropriate to your reporting purpose.
Source notes
The definitions and operating examples above align with ChartMogul’s “ARR: Annual Recurring Revenue vs Annualized Run Rate,” updated September 8, 2026; Stripe’s “What Is Annual Recurring Revenue (ARR)? A Guide for SaaS Businesses,” updated March 16, 2026; and Stripe Support’s “Understanding Monthly Recurring Revenue (MRR) and Annual Recurring Revenue (ARR),” accessed October 9, 2026. These are vendor educational sources for operating metrics, not accounting standards. No industry benchmark or market-size statistic is needed to perform the calculation.
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