You can change the email address you use to log in to Xero accounting software at any time.
Simply click on your name in the top corner and go to 'Account'. Once you reach the Account Settings screen, click 'Edit' on the email section, and update your email address. You'll need to enter your password to enable the 'Change Email' button.
Xero will send a confirmation email to the new email address, with an activation link, which will need to be clicked on within 10 days. Here you can also cancel the confirmation, or resend it.
If you do change your login address, be aware your login will be changed for each of your organisations. Unless you have previously changed them, your billing email and reply-to address will also be updated.
If you need to, you can change your billing email address in My Xero, under Subscriptions and Billing, and your reply-to address in your organisation's General Settings under Email Settings.
Check out this video tutorial for a demo of how it's done!
Learn more about small business accounting with Xero: xero.com/