> For the complete documentation index, see [llms.txt](https://lorros.gitbook.io/lorros-guide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://lorros.gitbook.io/lorros-guide/groups/group-size-and-billing/increasing-group-size-during-a-subscription-period.md).

# Increasing group size during a subscription period

Groups of 10 or more members that add members during a subscription period will be immediately invoiced for the new Group size and a new subscription period will start. Any time remaining on the existing subscription will be credited on the new invoice.