What is ARR?
Annual Recurring Revenue (ARR) is the lifeblood metric for subscription businesses. It represents the total value of your recurring revenue contracts normalized to a one-year period. Think of it as your business's predictable revenue engine - the foundation everything else is built on.
ARR isn't just MRR multiplied by 12, though that's often how you calculate it. It's a statement about the sustainability of your business model. When investors ask about your ARR, they're really asking: "How much predictable revenue can you count on next year?"
Why ARR Matters
ARR is the North Star metric for SaaS companies because it strips away the noise. One-time payments, professional services, setup fees - none of that counts. ARR focuses purely on the recurring, predictable portion of your revenue stream. A financial platform built for SaaS should calculate ARR automatically from your subscription data rather than requiring manual spreadsheet tracking.
Investors watch ARR growth rates religiously. Companies growing ARR at 100%+ year-over-year command premium valuations. The Rule of 40 (ARR growth rate + profit margin should equal 40%+ is a common benchmark for healthy SaaS businesses.
How to Calculate ARR Step by Step
Step 1: Identify all recurring revenue sources. Open your billing system (Stripe, Chargebee, or your invoicing tool) and export active subscriptions. Only include recurring subscription revenue. Exclude one-time setup fees, professional services, and implementation charges.
Step 2: Normalize everything to a monthly amount. Monthly plans stay as-is. Annual contracts get divided by 12. Quarterly plans divided by 3. Multi-year deals divided by total months.
Step 3: Sum your MRR, then multiply by 12.
- Monthly subscribers: 80 customers × $150/mo = $12,000 MRR
- Annual subscribers: 25 customers × $1,500/yr = $3,125 MRR ($1,500 ÷ 12)
- Total MRR = $15,125
- ARR = $15,125 × 12 = $181,500
Step 4: Break down your Net New ARR. Track the four components separately each month:
- New ARR: from customers acquired this period
- Expansion ARR: from upgrades, seat additions, usage increases
- Contraction ARR: from downgrades
- Churned ARR: from cancellations
Net New ARR = New + Expansion - Contraction - Churned. This breakdown tells you where growth is coming from.
Step 5: Sanity-check against your bank. ARR is an annualized forward-looking metric, not cash collected. If your ARR says $200K but your bank deposits show $120K over the past year, you may be including non-recurring revenue or miscounting annual contracts.
Common mistakes founders make:
- Including one-time revenue (implementation, consulting, pilot projects)
- Double-counting annual prepayments
- Not accounting for free trials or heavily discounted plans that will churn
- Counting signed contracts that haven't started yet
Skip the spreadsheet. Futureproof calculates ARR automatically from your Stripe and billing data, including the Net New ARR breakdown, so you always have an accurate, real-time number for investor conversations.
ARR Growth Benchmarks
Seed Stage: 100-300% year-over-year
Series A: 100-200% YoY
Series B: 80-150% YoY
Series C+: 50-100% YoY
How to Accelerate ARR
There are three levers: acquire more customers, expand existing customers, reduce churn. Most founders over-index on new acquisition and ignore expansion and retention.
Build expansion revenue into your product from day one through usage-based pricing, feature tiers, and seat expansion.
Common Mistakes
Don't confuse ARR with total revenue. Track Net New ARR by component: New ARR, Expansion ARR, Contraction ARR, and Churned ARR. Don't game the metric with prepayments.
Formula
ARR = MRR × 12
or
ARR = (Total Annual Contract Value of All Active Subscriptions)
Example
If your SaaS company has $50,000 in MRR, your ARR would be:
ARR = $50,000 × 12 = $600,000
If you have 100 customers each paying $500/month, your ARR is still $600,000 ($50,000 MRR × 12).