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Annual Recurring Revenue (ARR)

Every SaaS investor, board member, and operator speaks in ARR. It's not just a metric — it's the shared language of subscription business health. Understanding what ARR actually measures (and what it deliberately excludes) is fundamental to making decisions that move it in the right direction.

What is Annual Recurring Revenue (ARR)?

ARR is the annualised value of all active subscription contracts at a given point in time. It answers the question: "If nothing changed — no new customers, no churn, no expansion — how much recurring revenue would we generate in the next 12 months?"

The formula is straightforward: ARR = sum of all active annual subscription values. For monthly subscribers, multiply MRR × 12.

ARR is a snapshot metric, not a flow metric. It represents your current run rate, not what you'll actually collect — actual revenue depends on future churn, expansion, and new sales.

What ARR Includes and Excludes

Include in ARR: Base subscription fees, recurring seat-based fees, recurring platform fees, and predictable recurring add-ons.

Exclude from ARR: One-time setup fees, professional services revenue, usage-based fees that aren't fixed and recurring, and multi-year deals should only be counted at the annual run rate (not the full contract value).

Getting these inclusions and exclusions right matters enormously for investor reporting and benchmarking. Inflating ARR by including one-time revenue destroys credibility with sophisticated investors who will check.

ARR as a Growth Framework

ARR growth is driven by four components — and understanding each separately is more useful than watching total ARR alone:

  • New ARR: Revenue from newly acquired customers
  • Expansion ARR: Additional revenue from existing customers (upsells, seat additions, plan upgrades)
  • Churned ARR: Revenue lost to cancellations (subtract this)
  • Contracted ARR: Revenue lost to downgrades (subtract this)

Net New ARR = New ARR + Expansion ARR − Churned ARR − Contracted ARR. When Expansion ARR exceeds Churned ARR + Contracted ARR, you've achieved negative net revenue churn — the holy grail of SaaS economics.

ARR Milestones That Matter

ARR milestones serve as loose proxies for company stage, though they're highly dependent on market and business model:

  • $1M ARR: Early product-market fit signal. You have paying customers who renew.
  • $10M ARR: Typically when companies start thinking seriously about a sales motion and repeatable growth processes.
  • $100M ARR: The benchmark most often cited as the threshold for a "real" scale-stage SaaS company.

Frequently Asked Questions

What is included in ARR?
ARR includes all recurring subscription revenue — base subscriptions, seat-based pricing, and recurring add-ons. It excludes one-time payments (setup fees, professional services), variable usage fees that aren't predictable, and non-recurring discounts. The key test: if the customer cancelled tomorrow, would this revenue stop? If yes, include it. If it's a one-time transaction, it's not ARR.
What is the difference between ARR and MRR?
MRR (Monthly Recurring Revenue) is ARR divided by 12 — they measure the same thing at different time scales. MRR is more useful for tracking short-term changes (new sales, churn, expansion). ARR is more useful for annual planning, investor reporting, and comparing against annual contract values. Most enterprise SaaS companies talk in ARR; most self-serve or PLG companies monitor MRR weekly.
What is a good ARR growth rate?
The T2D3 framework (triple, triple, double, double, double) is a classic benchmark for high-growth SaaS — meaning 3x ARR two years in a row, then 2x for three years. In practice, anything above 100% year-over-year growth under $10M ARR is considered strong. Above $50M ARR, 50% growth is excellent. Most public SaaS companies grow 20–40% annually at scale.

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