To change or update your account information, email and contact information, and financial information for your eBay account:
Go to My eBay
» mouse over the Account tab » click Personal Information
Click the Edit link for the information you want to change or update. For your security, you may be asked to sign in.
Make your changes then click the button that confirms your changes.
Note: We strongly recommend you carefully consider any changes you are making to your personal information. This is because changing personal information on your eBay account can have unintended consequences. For example, if you change your User ID, your listings will no longer be immediately displayed to buyers who have you on their Saved Sellers lists.