Since your account is associated with your email, unfortunately it’s not possible to use two separate email addresses for your business and personal account. You can easily switch between your personal and business account by clicking on your name on the top right corner of Booking.com homepage.
If by mistake you made a business reservation via your personal account (and vice versa), you can change the purpose of the reservation as long as it’s yet to take place. You can do so by following these steps:
- Click on your account name on the top right corner of the homepage.
- Select ‘Bookings’.
- Select ‘View Booking’ on the selected booking.
- Select ‘Want to link it to a different one?’. The reservation will be moved from your personal account to your business account.