MRR Expansion % is how much additional recurring revenue you earn from existing customers — through upgrades, add-ons, and increased usage — as a percentage of starting MRR. The formula is Expansion MRR ÷ Starting MRR × 100. Healthy SaaS keeps expansion higher than churn so net revenue grows on its own.
What is MRR Expansion?
MRR Expansion % (Monthly Recurring Revenue Expansion percentage) measures how much more money a company is making from its existing customers over time. This increase usually comes from customers upgrading their subscriptions, buying additional services, or using more of what the company offers. It helps show how well the company is growing its revenue from the customers it already has.
How to Calculate MRR Expansion percentage
Basic Formula for MRR Expansion %
MRR Expansion % = (Expansion MRR ÷ Starting MRR) × 100Extra revenue from existing customers
Example:
- May 2024 MRR: $10,000
- June 2024 MRR: $15,000
Step 1: Calculate the Expansion MRR
First, determine how much the MRR increased from May to June. This is your Expansion MRR:
Expansion MRR = June 2024 MRR − May 2024 MRR
Expansion MRR=$15,000−$10,000=$5,000
Step 2: Calculate the MRR Expansion %
Now, use the formula for MRR Expansion %:
MRR Expansion % = (Expansion MRR / MRR at the Start of the Period) × 100
Substitute the values:
($5,000 ÷ $10,000) × 100 = 50%$10K → $15K from existing customers
The MRR Expansion % from May to June 2024 is 50% — the MRR grew 50% from existing customers alone.
Why MRR Expansion % Matters
- Growing Revenue from Current Customers: A high MRR Expansion % means your current customers are spending more, which is great because it’s often cheaper to get existing customers to spend more than to find new ones.
- Stable Revenue: If your MRR Expansion % is high, you can rely on your current customers for steady revenue growth, making your business more stable.
- Customer Satisfaction: If customers are willing to upgrade or buy more, it usually means they’re happy with your product or service.
MRR Expansion % vs. Churn Rate
- MRR Expansion %: Shows how much your revenue is growing from existing customers.
- Churn Rate: Measures how much revenue you’re losing from customers who cancel or downgrade. Ideally, your MRR Expansion % should be higher than your churn rate, so your overall revenue keeps growing.
MRR Expansion FAQ
How do you calculate MRR expansion?
MRR Expansion % = (Expansion MRR ÷ Starting MRR) × 100. If existing customers add $5,000 on a $10,000 base, expansion is 50%.
What counts as expansion MRR?
Extra recurring revenue from existing customers: plan upgrades, add-ons, cross-sells, more seats, and usage growth — not revenue from new customers.
Why does MRR expansion matter?
Growing revenue from existing customers is far cheaper than new acquisition, signals satisfaction, and — when it exceeds churn — produces negative churn, where revenue grows without adding customers.
How does MRR expansion relate to churn?
They pull in opposite directions. When expansion MRR exceeds churned MRR, net revenue retention exceeds 100% and the customer base grows in value on its own.
