Valuation

How to Calculate ARR for a SaaS Business

ARR calculation explained — including edge cases and adjustments.

·7 min read

ARR Is Annual Recurring Revenue, Calculated by Multiplying Monthly Recurring Revenue by 12

Annual recurring revenue, or ARR, equals a SaaS company’s current monthly recurring revenue (MRR) multiplied by twelve, after removing one-time fees and adjusting for churn, upgrades, and downgrades. Investors and buyers on platforms such as hades.ae, Empire Flippers, and Acquire.com rely on a clean ARR figure to determine 2–5× revenue multiples during 2026 acquisitions.

Step-by-Step ARR Calculation

  1. Start with the last calendar month’s recognized MRR from all active subscriptions.
  2. Subtract any revenue classified as non-recurring (implementation, consulting, or hardware).
  3. Annualize by multiplying the adjusted MRR by 12.
  4. Apply a churn adjustment: subtract expected annual contraction using the formula ARR × (1 – churn rate).
  5. Add back committed expansions and new bookings already under signed contracts that will start within the next 12 months.

Common Edge Cases and Adjustments

Many founders overstate ARR by including pilot revenue or annual contracts paid upfront without ratable recognition. On the other hand, conservative calculations exclude usage-based revenue even when it is contractual and predictable. When preparing an asset purchase agreement (APA) for due diligence, acquirers at FE International and MicroAcquire typically request a 24-month revenue bridge that isolates new MRR, expansion MRR, churned MRR, and reactivation MRR.

ARR vs. Other Metrics Used in Valuations

  • MRR: The monthly view; useful for early-stage companies with fewer than $100k ARR.
  • SDE: Seller’s discretionary earnings; still referenced for sub-$1M bootstrapped SaaS but increasingly replaced by ARR multiples.
  • EBITDA: Preferred for larger assets above $3M ARR; 2026 median exit multiples sit at 4.8× ARR for companies with 85%+ gross margins.

ARR Benchmarks and 2026 Market Reality

Median public SaaS companies trade at 6–8× forward ARR, while private exits on hades.ae and Acquire.com close between 2.2× and 4.1× trailing ARR depending on net revenue retention and logo churn. A 5% monthly churn rate typically caps multiples at 2.5×, whereas sub-1% churn can push multiples above 5×. Escrow holdbacks of 10–15% of purchase price remain standard to cover post-close churn surprises.

How do I calculate ARR from QuickBooks or Stripe data?

Export subscription invoices for the most recent month, filter out one-time line items, sum the recurring amounts to obtain MRR, then multiply by 12. Adjust for any contracts with ramped pricing that begin mid-year.

Should I include annual contracts paid upfront in current ARR?

Yes, but only the ratable portion that will be recognized over the next 12 months. The remaining deferred revenue sits on the balance sheet and does not increase the ARR figure used in valuation models.

What ARR figure should I show when listing on acquisition marketplaces?

Use the last 30-day recognized ARR, not a forward-looking or booked-ARR number. Buyers will re-calculate it during diligence, and any material variance can kill a letter of intent (LOI).

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