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Expansion MRR metric chart view
Expansion MRR metric table view

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What is Expansion MRR?

Expansion MRR is the extra monthly revenue from existing customers who pay you more than before. This happens when a customer upgrades their plan, adds seats, or buys an add-on.

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How to Calculate It

Expansion MRR = New MRR amount − Previous MRR amount (for each customer who increased)
Example: a customer was on the $49/month plan and upgrades to $99/month. Expansion MRR = $99 − $49 = $50 If 3 customers expand this month:
  • Customer A: $49 → $99 = $50
  • Customer B: $99 → $149 (added seats) = $50
  • Customer C: $49 → $69 (added add-on) = $20
Total Expansion MRR = $50 + $50 + $20 = $120

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Where It Fits

Expansion MRR is one of five MRR movement types: Net New MRR = New + Expansion + Reactivation − Contraction − Churn Expansion MRR is the best kind of growth. You’re earning more from customers you already have — no acquisition cost. Bigdelta tracks Expansion MRR automatically as an activity on each account.

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FAQ

New MRR is from first-time customers. Expansion MRR is from existing customers paying more.
Plan upgrades, added seats, added add-ons — anything that increases a customer’s recurring payment.