Steps
Click Settings in the bottom-left corner
Go to "Billing"
Click "Overview"
Find the "Billing Email" field
Click to edit and enter your new email address
Verify the new email is correct
Click "Save" or "Update" to apply the change
A confirmation may be sent to both old and new email addresses
Notes
Invoices and payment confirmations go to this email address
Change this email if you switch email providers or accounts
Both workspace email and billing email can be different
Ensure the email is checked regularly for billing notifications