# Expansion MRR

> Expansion MRR is a recurring-revenue metric, calculated as Upgrades and seat additions from existing customers.

Source: https://lopifi.com/glossary/expansion-mrr
Part of: Lopifi — US GAAP books on autopilot, checked by a CPA (https://lopifi.com)

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**What is expansion mrr?** Expansion MRR is a recurring-revenue metric, calculated as Upgrades and seat additions from existing customers.

## Formula

`Upgrades and seat additions from existing customers`

- **Category:** Recurring revenue
- **Specified in:** [Metric definitions](https://lopifi.com/md/docs/domain/10-metrics)
- **Related:** revenue