It's actually quite simple in Evernote: tell application "Evernote" set theNotes to every note in notebook "Inbox" whose title contains "Receipt" repeat with eachNote in theNotes assign tag "receipt" to eachNote end repeat synchronize end tell However, the latest version has broken multiple AppleScript items, including the ability to assign tags to notes via AppleScript. Also, the "receipt" tag must already exist; if it doesn't create it. I use a similar method with updating creation dates, assigning and then unassigning a tag so Evernote knows to sync the note.