Why Use This New vs Expansion MRR Split Calculator
Relying entirely on new customer acquisition is expensive and unsustainable as a software business matures. This calculator helps you:
- ⚖️ Balance Growth Vectors — measure the ratio between new customer acquisition and existing account upsells.
- 💰 Lower Blended CAC — optimize growth strategies by shifting focus toward low-cost expansion revenue.
- 📈 Track Scale Maturity — benchmark your growth split against early-stage vs. late-stage SaaS companies.
- 🎯 Align Sales & CS Alignment — evaluate Sales team quota (New Logos) vs. Customer Success quota (Expansion).
MRR Growth Split Formulas
\[\text{Total Gross New MRR} = \text{New Logo MRR} + \text{Expansion MRR} + \text{Reactivated MRR}\] \[\text{New Logo Share (\%)} = \frac{\text{New Logo MRR}}{\text{Total Gross New MRR}} \times 100\] \[\text{Expansion Share (\%)} = \frac{\text{Expansion MRR}}{\text{Total Gross New MRR}} \times 100\] \[\text{Reactivation Share (\%)} = \frac{\text{Reactivated MRR}}{\text{Total Gross New MRR}} \times 100\]SaaS Maturity Stage Growth Split Benchmarks
| Company Stage | Typical ARR | New Logo MRR % | Expansion MRR % | Strategic Focus |
|---|---|---|---|---|
| Seed / Early Stage | < $1M | 85% – 100% | 0% – 15% | Initial customer acquisition & PMF |
| Series A / Scale-up | $1M – $10M | 65% – 80% | 20% – 35% | Repeatable acquisition + early upsell motion |
| Growth / Pre-IPO | $10M – $50M+ | 45% – 60% | 40% – 55% | Compounding negative churn & enterprise expansion |
How to Use This New vs Expansion MRR Split Calculator
- Enter New Logo MRR added from new customers.
- Enter Expansion MRR added from tier upgrades and add-ons.
- Enter Reactivated MRR added from returning former customers.
- Review New Logo Share (%), Expansion Share (%), and Total Gross New MRR.
Frequently Asked Questions
Why is the New vs. Expansion MRR split important for SaaS?
The split shows where growth originates. Early-stage SaaS companies rely mostly on New Logo MRR (70%–90%), while mature scale-ups generate 30%–50%+ of new MRR from account expansion.
What is New Logo MRR?
New Logo MRR is monthly recurring revenue generated from first-time customers subscribing to your product during the period.
What is Expansion MRR?
Expansion MRR is additional recurring revenue generated from existing customers upgrading their subscription plans or purchasing add-ons.
What is Reactivated MRR?
Reactivated MRR is recurring revenue from previous customers who had cancelled but re-subscribed during the current evaluation period.
What is a healthy MRR growth split for a Series A/B SaaS company?
A healthy target is 60%–70% New Logo MRR and 30%–40% Expansion MRR. As companies reach scale ($20M+ ARR), expansion should ideally represent 40%–50%+ of gross added MRR.
How does the split impact Customer Acquisition Cost (CAC) payback?
High reliance on New Logo MRR increases overall sales & marketing costs (higher CAC). Increasing Expansion MRR lowers blended CAC payback significantly.
How often should growth teams measure this split?
SaaS sales and growth leaders track the New vs. Expansion MRR split monthly to allocate marketing spend and Customer Success resources.