Gross Revenue Retention (GRR): what it is and how to calculate it

GRR takes a group of customers at a point in time and asks: how much of their recurring revenue do you still have after a period, counting only what you lost? It looks only at the existing base MRR and subtracts contraction and churn, without adding a single cent of expansion. That is why it measures the pure leak: the revenue that drains from the base before any new sale or upgrade.

It is the conservative sibling of NRR. While NRR can go above 100% because it counts expansion, GRR is capped at 100%, since it only subtracts. Looking at both together separates what the base loses from what expansion recovers, and keeps a strong upsell from hiding a worrying churn.

Take the base MRR at the start of the period, subtract contraction and cancellations over it, and divide by the starting MRR. Expansion is left out: by definition, GRR ignores any extra revenue from upgrades and add-ons.

• Starting base MRR.
• Minus contraction (downgrades).
• Minus churn (cancellations).
• Divided by the starting base MRR.
• Expansion does not count.

Example: a base starts the period with $100k of MRR. Over it, it loses $4k in downgrades and $6k in cancellations. That leaves $90k over $100k, a GRR of 90%. Note the contrast with NRR: if that same base had gained $18k of expansion, NRR would be 108%, but GRR would still be 90%, because it never counts expansion.

Both metrics start from exactly the same point: the starting base MRR, from which they subtract the same contraction and the same churn. The single difference, and it changes everything, is expansion: NRR adds the upgrades of the base, GRR does not.

• GRR: start minus contraction and churn. Never goes above 100%.
• NRR: the same, plus expansion. Can go above 100%.

The gap between the two is precisely the size of your expansion. In the example above, an NRR of 108% with a GRR of 90% tells a clear story: the base leaks 10% a year, and expansion not only covers that hole but still grows revenue by 8%. GRR on its own reveals the leak that NRR, by itself, masks.

The benchmark is simple: the closer to 100%, the better, because every point below is revenue draining from the base. According to the annual private SaaS survey by KeyBanc Capital Markets, industry gross revenue retention sat around 86% in 2023, while net retention stayed above 100%. In other words, the typical SaaS loses about 14% of its base a year and relies on expansion to grow despite that.

The expected bar rises with contract size. SaaS Capital shows retention rising with deal size: in the $25k to $50k annual contract bracket, median NRR was 102%, a sign of more loyal bases. Larger accounts tend to have higher GRR than self-serve products, so a GRR of 90% can be excellent in a self-serve product and merely average in an enterprise SaaS.

Yes, GRR includes contraction. Downgrades and plan reductions are lost base revenue, and the metric was built precisely to capture every loss: both the full cancellation (churn) and the partial reduction (contraction). No loss is left out.

And by construction GRR never goes above 100%. Because it only subtracts, and adds nothing, the best possible outcome is losing no one, which lands at exactly 100%. If you see a GRR above 100%, it is a sign that expansion was mixed into the calculation by mistake, and what is actually being measured is NRR. Keeping the two apart is what gives an honest read of the base.

Because GRR only measures losses, improving it means attacking the pure leak: reducing churn and contraction. There is no expansion shortcut here, which makes it the most honest test that the base holds on its own. A playbook:

• Invest in onboarding and activation: customers who reach value fast cancel less.
• Monitor downgrade and risk signals, and act before renewal, not after.
• Close the product gaps that push customers to smaller plans or out the door.
• Segment GRR by cohort and customer size: the average hides bases that hold and bases that leak.

Tracked by cohort, GRR becomes the cleanest gauge of base health. A high GRR is the foundation expansion works on: without stopping the leak first, no high NRR holds up for long.