1. Make sure the new primary admin is already a user. If they're not yet added to your QuickBooks Online company, add them first under Manage users and have them accept the invite before you try to promote them.
2. Go to Settings, then Manage users.
3. Locate that user in the list and click the dropdown arrow on their row.
4. Choose Make primary admin from the menu.
5. Confirm the request. QuickBooks sends a confirmation email to the current primary admin's address on file, the one tied to the account, not necessarily the one actively checked day to day.
6. The current primary admin clicks the link in that email. Until they do, the role hasn't actually transferred, no matter who initiated it.
7. Once confirmed, the new user becomes primary admin. The previous primary admin drops to a regular admin role, keeping full access, just without the primary designation.