Yes, you can. You can add multiple accounts to your login/email and switch between them with a single click. This option is available to all users by default as soon as the first account is registered on FIZ.
The number of accounts — businesses, associations, freelancers (TI), and sole proprietors (ENI) — that a user can manage is unlimited.
This feature is useful for entrepreneurs with multiple companies, families with several entrepreneurs, and accountants who wish to manage multiple clients.