Q: What is the maximum file size I can upload on Teams?
A: Teams runs on a SharePoint Online backend for file sharing, SharePoint limitations apply to the Files section within a Team.
- File upload limit ( per file): 100GB 250GB
- Storage limit for each team siteper team (i.e. per SharePoint site): 25TB
See: https://docs.microsoft.com/en-us/microsoftteams/limits-specifications-teams#storage