Create a User ID
The following information is required to create a User ID for online services.
If you already have a User ID, and need to manage additional accounts, Login with your User ID and Password and Click "Link An Account". If you are a tax/fee preparer, you can request access to electronic file for an account using form CDTFA-91-B.
You must be identified with the California Department of Tax and Fee Administration as a business owner or an authorized user associated with the account for which you are creating a User ID.
If you have not been added to the account as an authorized user to file a return online, the owner of the account will need to contact the California Department of Tax and Fee Administration to have you added to the account as an authorized user to file a return online. Click here to view the information required.