Use Tags and Smart Folders in Notes on your iPhone and iPad

To add a tag to multiple notes:

1. Go to the folder with the list of notes.
2. Tap the More button , then tap Select Notes.
3. Select the notes, then tap Tags at the bottom of the screen.
4. Select the tags you want to add to the notes, then tap Done.

If you create a tag on a device with iOS 15 or iPadOS 15, it shows up in Notes on your other Apple devices if they’re using at least the latest version of iOS 14, iPadOS 14, or macOS Big Sur. If your other devices are using an older software version, the note with the tag will be hidden.

When you share a tagged note with someone who’s using at least the latest version of iOS 14, iPadOS 14, or macOS Big Sur, they see the tagged word but it doesn’t appear as an actual tag until they add it as a tag. If you try to share a tagged note with someone who’s using an older software version, they don’t see the note at all.

You can’t lock a note that has a tag and you can’t add a tag to a locked note.