Note: For CRA account error messages such as Account Locked, WAC/EFILE number/password invalid, and the errors related to your CRA account, please contact CRA Helpdesk.

Click to open CRA error code list.

1. Erro 395 - According to CRA’s records, your corporation is already registered for the Manage Online Mail service. Remove your request to sign up for the service and the email address entered. Email address changes must be made by accessing My Business Account or Represent a Client.

-- Select No at line 088 on page 1 of Corp Info Worksheet.

2. WAC Error 345 - The information submitted is either incorrect or incomplete. For assistance, contact CRA’s Corporation Internet filing Helpdesk at 1-800-959-2803.

-- Click the WAC Code/Efile button at the top tool bar in the software, double check the postal code. It must match with CRA records.

3. WAC Error 347:

-- You have made too many attempts. Call the telephone showing in the message to unlock your account.

4. Auto fill ERR.029 - This session has timed out.

-- Login your CRA account in your default browser and keep it opened, then Auto fill your tax returns in the software again.

5. T1134 Error: No supplement

-- T1134 cannot be submitted electronically without supplement. However if all foreign affiliates meet the dormancy threshold, the Summary can be mailed alone with no supplement. Refer to the following document: