# Monthly Expansion Rate

This is the additional revenue generated by existing customers without any new customers joining. It includes plan upgrades, additional seats, and new modules. A business with active expansion has an internal growth engine that does not depend on advertising.

## Where to find it

Additional revenue generated by upsells/upgrades from existing customers this month (excluding new customers or renewals), divided by the total revenue of that base. See it in Stripe filtering by "subscription updates", or in your CRM if you log upgrades manually.

## If it's off

Without expansion, the only path to growth is constant acquisition. That makes the business capital-intensive and vulnerable to budget cuts. The best SaaS companies grow more through expansion than acquisition at maturity.

## LATAM Benchmarks

| Status | Range |
|---|---|
| Healthy | > 1% monthly on the installed base |
| Alert | 0.3–1% monthly |
| Critical | < 0.3% monthly (no real upsell) |

## How to improve it

If expansion is zero, check whether the product has well-defined usage tiers. Without a natural limit (seats, transactions, usage), customers have no incentive to upgrade. Usage-based pricing generates automatic expansion.

Related metrics: [CAC](https://www.uniteconomicscalculator.com/en/glossary/cac.html) · [Gross Margin](https://www.uniteconomicscalculator.com/en/glossary/gross-margin.html) · [NRR](https://www.uniteconomicscalculator.com/en/glossary/nrr.html)

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