ARR (Annual Recurring Revenue)

ARR (Annual Recurring Revenue) is the metric that expresses, as an annualized value, the recurring and predictable revenue a subscription company expects to receive over a twelve-month period. It counts only what repeats contractually (monthly or annual plans, licenses, subscriptions) and leaves out everything that is one-time or non-recurring, such as implementation fees, migrations or one-off professional services.

Its value lies in predictability: unlike total revenue, ARR shows the stable base on which the business is built, stripping out spikes that will not repeat. That is why it is the headline metric for SaaS and subscription companies, both for management and for investors evaluating growth and financial health.

Tracking ARR and how it changes over time (new business, expansions, contractions, cancellations) is a business analytics task, part of what Metrix centralizes and visualizes when it consolidates sales and billing data into tracking dashboards.

How ARR is calculated

The base formula is straightforward: if you work with annual contracts, ARR is the sum of the annualized value of all active subscriptions. For monthly contracts, it is calculated from MRR (monthly recurring revenue) multiplied by twelve.

• ARR = MRR x 12
• MRR = the sum of all recurring revenue in a month (the monthly fee of each active customer)
• For an annual contract of USD 12,000, the ARR contributed by that customer is USD 12,000; if it were a monthly plan of USD 1,000, its ARR is still USD 12,000

The key is what is included and what is not. Subscription fees, recurring add-ons and recurring discounts (which subtract) are included. One-time payments are left out: setup, training, custom consulting and variable revenue that is not guaranteed year after year.

Why it matters to the business

ARR is not just a reporting number: it is the basis for investment, hiring and cash flow forecasting decisions. A company with USD 2,000,000 in ARR knows it starts each year from a predictable floor, something total revenue (inflated by a large non-recurring project) could hide. For valuation purposes, SaaS multiples are usually calculated on ARR, not on total revenue.

It also lets you break growth down into its components, known as the ARR bridge:

From there come critical metrics such as net revenue retention (NRR): if expansion exceeds contraction plus churn, the company grows even without adding new customers.

A concrete example from Argentina and LATAM

Consider an Argentine B2B SaaS company that sells a management system by subscription. It has 50 customers paying an average of USD 800 per month, which gives an MRR of USD 40,000 and an ARR of USD 480,000. During the year, it also bills USD 60,000 in one-time implementation projects. If it reported "revenue" without distinguishing between them, it would show USD 540,000, but its real recurring base (the one that sustains the business even if it does not close a single new project) is USD 480,000. That distinction is what an investor or the CFO looks at when projecting the following year.

In markets like Argentina there is an extra nuance: currency. Many contracts are signed in dollars but collected in pesos, or include inflation adjustments. For ARR to be comparable over time, it is best to set a reference currency and an exchange-rate criterion; otherwise the metric mixes real growth with currency effects.

Common mistakes when measuring ARR

• Counting non-recurring revenue: adding implementation, consulting or perpetual licenses inflates ARR and breaks the predictability the metric is meant to capture.
• Confusing ARR with billings or cash collected: ARR is an annualized value of active contracts, not what actually landed in the bank this month.
• Ignoring contraction and churn: looking only at new ARR without deducting cancellations gives an overly optimistic picture; the healthy figure is net ARR.
• Not normalizing currency in high-inflation economies or with multi-currency contracts.

How it differs from MRR and other metrics

ARR is often confused with neighboring metrics. The difference is one of time horizon and nature:

In practice, companies with mostly annual contracts talk in ARR; those that bill monthly or have high customer turnover prefer MRR to spot changes faster. Both describe the same recurring reality; only the time window changes.