Trash (Mac)
Also known as: Mac Trash, empty trash macOS, recycle bin Mac
The Trash on a Mac is a holding area for files you delete from Finder. The disk space they used is not reclaimed until you empty the Trash, so a full Trash can quietly keep gigabytes tied up.
- Space is freed only after the Trash is emptied
- Can auto-empty after 30 days in Finder settings
- External drives keep their own separate trash
Why deleting does not free space
When you drag a file to the Trash or press Command-Delete, macOS moves it to a hidden `.Trash` folder rather than erasing it. The file still occupies disk space there until you empty the Trash, which is why your free space often does not change after a delete.
To reclaim the space, click and hold the Trash icon in the Dock and choose Empty Trash, or use Finder > Empty Trash. You can also turn on Finder > Settings > Advanced > Remove items from the Trash after 30 days to clear it automatically.
Per-app and external trash
Photos, Mail, and some other apps keep their own Recently Deleted or Trash area, and emptying the Finder Trash does not empty those. Each external drive also has its own hidden `.Trashes` folder, so deleting from a USB drive can keep space used until you empty the Trash while that drive is connected.