The people you tag in a photo or video are visible to anyone who can see it.

If your Instagram account is set to public, anyone can see the photo or video, and the person you tagged will get a notification. If your Instagram account is private, only your approved followers can see the photo or video, and the person you tag will only get a notification if they're following you. You can choose to make your account private at any time.

Learn more about the differences between private and public accounts.

Note: If you're not able to tag someone, they may have changed who can tag them in their privacy settings. You'll also be able to see if they don't allow tags.