Attach a File

All attached files will be listed in the Attached files dialog box. The following information will be indicated for each file:

• the icon indicating whether it is an embedded or a linked file;

• the file name (with the file extension, depending on the Windows configuration);
• the file size;
• the type of transmission for which you want to attach a supporting document;

• the copy of Forms T106 or T1134 with which the supporting document is associated.

In addition, the button allows you to access the Attached files properties dialog box.

Attached files can be used as supporting documents for electronically transmitted returns. To attach a supporting document to such a return, proceed as follows:

1. In the Attached files properties box of the Properties dialog box, under Transmit with, select the T2 – Docs check box for the files that you want to attach to the T2 return.
2. In the General section, select the Embedded option to save the attached file to the client file.
   You can also link the attached file without saving it to the client file. To do so, select the Link option and select the file location.
   Note: We recommend linking the attached files when transmitting a large number of supporting documents to the CRA in order not to affect performance.
3. In the Type list, select the type of document to transmit.
4. In the Description box, specify the reason why the supporting document is attached to the T2 return.
   Note: The EFILE Status field allows you to review the EFILE status of a supporting document. For more information on the EFILE status of a supporting document, consult the topic EFILE status of a T2 supporting document.
5. Click OK.

Note
Provide additional information if, in the Type list, you have selected one of the following: Other Choices, Explanatory Notes or Resolution and Agreements. For more information on the document types as well as the required description, consult the topic Types of documents that can be attached to the T2 transmission.
The type or the description of a supporting document cannot be modified when its EFILE status is "Rejected" or "Accepted."

Validation of supporting documents attached to a T2 return

Certain conditions must be complied with in order for the transmission of supporting documents to be possible:

• The filename of each supporting document cannot be more than 150 characters.
• The types of files that can be transmitted are the following: .pdf, .doc, .docx, .xls, .xlsx, .rtf, .txt, .jpg, .jpeg, .tiff, .tif and .xps.
• The total size of the supporting documents cannot be more than 150 MB for all supporting documents associated with a T2 transmission (you can add as many supporting documents as necessary, provided the maximum size of 150 MB is complied with).

Attached files can be included during the transmission of a CO-17 return. To transmit these files, proceed as follows:

1. In the Attached files properties box of the Properties dialog box, under Transmit with, select the CO-17 check box for the files that you want to attach to the CO-17 return.
2. In the General section, select the Embedded option to save the attached file to the client file.
   You can also link the attached file without saving it to the client file. To do so, select the Link option and select the file location.
   Note: We recommend linking the attached files when transmitting a large number of supporting documents to the CRA in order not to affect performance.
3. Click OK.

Validation of supporting documents attached to a CO-17 return

Certain conditions must be complied with in order for the transmission of supporting documents to be possible:

• The types of files that can be transmitted are the following .gif, .jpg and .pdf. The files of type .jpeg must be renamed with the .jpg extension.
• The maximum size of each supporting document attached to the CO-17 return is set at 30 MB.

Attached files can be used as supporting documents for electronically transmitted forms. To attach a supporting document to one of these forms, proceed as follows:

1. In the Attached files properties box, under Transmit with, select the check boxes for the transmission to which you want to add a supporting document (T106 – Docs, T1134 – Docs, T1135 – Docs).
2. In the General section, select the Embedded option to save the attached file to the client file.
   You can also link the attached file without saving it to the client file. To do so, select the Link option and select the file location.
   Note: We recommend linking the attached files when transmitting a large number of supporting documents to the CRA in order not to affect performance.
3. In the Type list, select the type of document to transmit.
4. For the T106 – Docs transmission, in the Associate with section, select Summary for the T106 Summary or Slip to select one of the T106 slip copies.
   
   For the T1134 – Docs transmission, in the Associate with section, select Summary for the T1134 Summary or Supplement to select the T1134 Supplement copies.
   Note: The Slip and Supplement fields cannot be used to perform a search using the keyboard. You must click the button and select the copy of the form with which you want to associate a supporting document. In addition, the EFILE Status field allows you to review the EFILE status of a supporting document. For more information on the EFILE status of a supporting document, consult the topic EFILE status of a T2 supporting document.
5. Click OK.

Note
The type or the description of a supporting document cannot be modified when its EFILE status is "Rejected" or "Accepted."

Validation of supporting documents attached to a T106, T1134 and T1135 transmission

Certain conditions must be complied with for the transmission of supporting documents to be possible:

• Password-protected attached files are not accepted.
• The size of the supporting documents must not exceed 350 MB (you can add as many supporting documents as necessary, provided the 350 MB limit is complied with).