How do I download a full account backup from cPanel?

cPanel accounts can be backed up using the cPanel > Backup interface using the Download a Full Account Backup button under the Full Backup heading. 

A full backup creates an archive of all of your website’s files and configuration. You can use this file to move your account to another server or to keep a local copy of your files.

A full backup file is a tar.gz archive that includes contents of your home, /home or /home/[user] directory, databases, email forwarders, and filters.

Full backups cannot be used to restore your website through the cPanel interface so you must contact our system administrators for assistance*.

To work with any files from your full backup, you must decompress the backup. 

Tip: The backup process for an account near or over its allocated disk quota may fail because the system cannot write necessary files, such as a database lock file.

* Submit a Request (top menu) and share the path to your full backup (account restoration is billable).