What is ARR (Annual Recurring Revenue)? (Definition + SaaS example)
Annual Recurring Revenue (ARR) is the annualized value of a SaaS company's committed recurring subscription revenue. ARR equals MRR multiplied by 12 and usually excludes one-time fees, services, and purely variable usage, making it a standard metric for investor reporting, valuation, and annual planning.
Formula and Calculation
Simple ARR
ARR = MRR × 12
For a component-level breakdown:
ARR Components
ARR = Beginning ARR + New ARR + Expansion ARR + Reactivation ARR − Contraction ARR − Churned ARR
Worked SaaS Example
A B2B SaaS company has the following subscription breakdown:
| Plan | Customers | Annual Value | ARR Contribution |
|---|---|---|---|
| Starter ($49/mo) | 80 | $588 each | $47,040 |
| Growth ($199/mo) | 45 | $2,388 each | $107,460 |
| Enterprise ($24,000/yr) | 12 | $24,000 each | $288,000 |
| Total | 137 | $442,500 |
Cross-check: MRR of $36,875 × 12 = $442,500 ARR.
ARR Movement Summary (Q1)
| Component | Amount |
|---|---|
| Beginning ARR (Jan 1) | $420,000 |
| + New ARR | $14,400 |
| + Expansion ARR | $5,400 |
| − Contraction ARR | −$2,100 |
| − Churned ARR | −$4,776 |
| Ending ARR (Mar 31) | $432,924 |
Net New ARR for Q1: $12,924 (3.1% quarterly growth).
ARR vs MRR
Why ARR Matters for SaaS
Finance teams use ARR as the north-star metric for subscription health. It provides a single number that represents the annualized revenue run rate, making it easy to set targets, compare periods, and communicate performance to stakeholders.
In investor reporting, ARR is the standard. Fundraising decks lead with ARR and ARR growth rate. The common SaaS valuation framework — a revenue multiple applied to ARR — makes this metric directly tied to company value. A 15-point increase in ARR growth rate can meaningfully change the valuation multiple.
A common mistake is inflating ARR by including non-recurring revenue such as implementation fees, consulting hours, or hardware sales. This overstates the recurring base and leads to painful corrections when investors or auditors dig into the numbers. Keep ARR pure.
ARR connects directly to MRR by definition, and serves as the denominator for key metrics like NRR (net revenue retention) and dollar-based net expansion. Growing ARR while maintaining high NRR signals a healthy, expanding customer base — the combination investors value most.
Track your ARR growth automatically in JustPaid
Frequently Asked Questions
ARR includes only recurring subscription revenue, annualized from the current month. Annual revenue includes all revenue sources (one-time fees, services, usage) over a full fiscal year. ARR is a forward-looking run-rate; annual revenue is a backward-looking total.
Related Terms
MRR (Monthly Recurring Revenue)
Monthly Recurring Revenue (MRR) is the predictable revenue a SaaS company earns each month from active subscriptions. MRR normalizes different billing periods — annual, quarterly, and monthly — into one consistent monthly figure, making it the foundational metric for SaaS financial planning.
ARR Components
ARR components are the revenue movements that explain how Annual Recurring Revenue changes over time. SaaS companies typically break ARR into beginning ARR, new ARR, expansion ARR, contraction ARR, reactivation ARR, and churned ARR to understand growth quality and forecast future performance.
Total Bookings
Total bookings is the total value of contracts signed in a given period, including recurring subscriptions, one-time fees, services, and other committed transaction value. In SaaS, bookings are a sales momentum metric, not the same as billings, recognized revenue, or ARR.
Deferred Revenue
Deferred revenue is payment received for goods or services that have not yet been delivered, recorded as a liability on the balance sheet until the obligation is fulfilled. In SaaS, deferred revenue arises when a customer pays upfront for an annual subscription but the service is delivered monthly over 12 months.
NRR (Net Revenue Retention)
Net Revenue Retention (NRR) measures the percentage of recurring revenue retained from existing customers over a period, including expansion, contraction, and churn. An NRR above 100% means a SaaS company is growing revenue from its existing customer base without acquiring a single new customer.
Run Rate
Run rate is an annualized projection of future revenue based on current period performance. In SaaS, run rate is typically calculated by multiplying the most recent month's revenue by 12, providing a forward-looking estimate of annual revenue if current conditions remain unchanged.
