What is Gross Revenue Retention?
Gross Revenue Retention (GRR) measures how much revenue you keep from existing customers without counting any upsells or expansion. It's capped at 100% and shows the baseline health of your customer relationships.
While NRR can mask churn problems with strong expansion, GRR exposes the raw truth about customer satisfaction. A company with 120% NRR but 70% GRR has a serious retention problem hidden by aggressive upselling.
Why GRR Matters
GRR reveals the fundamental stickiness of your product. High-performing SaaS companies maintain GRR above 90%. Enterprise software often achieves 95%+ GRR because switching costs are high and contracts are long.
If your GRR is below 80%, you have a product or customer success problem that no amount of expansion can sustainably fix. You're essentially filling a leaky bucket.
GRR vs NRR
Use GRR to diagnose retention health. Use NRR to measure overall revenue efficiency. A healthy business has both high GRR (above 90%) and high NRR (above 100%).
GRR = (Starting MRR - Contraction MRR - Churned MRR) ÷ Starting MRR × 100
Note: GRR can never exceed 100% since it excludes expansion revenue.
Your quarterly metrics:
- Starting MRR: $200,000
- Downgrades: $10,000
- Churned customers: $15,000
GRR = ($200K - $10K - $15K) ÷ $200K = 87.5%
You're losing 12.5% of revenue from existing customers each quarter. That's a 50% annual revenue leak that needs immediate attention.