There are times when you may wish to sign out of your iCloud account. Sometimes you have to do that for troubleshooting purposes if your iCloud Drive is not working correctly. Or, maybe you are preparing an iPhone, iPad or Mac to give away or sell. Whatever the reason, there is a definite process you should use to sign out of your iCloud account. This articles describes how to sign out of an iCloud account on macOS, iPad OS and iOS.