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Expansion MRR metric chart view
Expansion MRR metric table view

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.

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

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.

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.