Submit documents

The "Submit documents" service allows you to send documents electronically to the CRA quickly and securely. You should use this service when:

1. You would like to send relevant documents that are associated to a specific program through the CRA’s digital services; or
2. We have communicated with you requesting documents, and have invited you to use the “Submit documents” service, one of the CRA’s digital services.

This service can be used in the following situations:

• The CRA has provided you with a case or reference number to use for electronic document submission; or
• you do not have a case or reference number but know the applicable subject for your document submission and you are registered for the CRA’s digital services.

How to submit a document

If you have a case or reference number:

Step 1 – Case or reference number

1. Enter the case or reference number in the blank field. This number is either given to you by mail, by phone, in person by a CRA official, or on the confirmation screen of a previous document submission.
2. Choose “Next”.
3. Choose the tax year associated with the document you are submitting and choose “Continue”.

Step 2 – Attach, review, and submit files

1. Make sure the file format you want to send is accepted by the CRA. The file must be in one of the following formats in order to be uploaded: .pdf, .doc, .docx, .xls, .xlsx, .rtf, .txt, .jpg, .jpeg, .tiff, .tif, or .xps.
2. Enter a description of the file in the blank field. If more than one file is being uploaded, each must have a unique name.
3. Use the “Browse…” button on the right to choose the file you want to upload from your computer.
4. Choose "Upload file".
5. If you want to delete a file from this process, choose it from the column on the left, then choose "Delete file(s)".
6. If you want to upload another file, choose "Add another file".
7. Choose "Confirm" once you have uploaded all the files you want to send.

The total size of all files you send cannot exceed 500MB. A limit of ten files per submission may apply.

If you do not have a case or reference number:

Step 1 – Without a case or reference number

1. Choose “Without a case or reference number”.
2. Choose a topic that applies to your document submission from the list.
3. Choose “Next”

Step 2 – Attach the files you want to send

1. Make sure the file format you want to send is accepted by the CRA. The file must be in one of the following formats in order to be uploaded: .pdf, .doc, .docx, .xls, .xlsx, .rtf, .txt, .jpg, .jpeg, .tiff, .tif, or .xps.
2. Use the "Browse" button on the right to choose the file you want to upload  from your computer.
3. Enter a description of the file in the blank field. If more than one file is being uploaded, each must have a unique name.
4. Choose "Attach file".
5. If you want to delete a file from this process, choose it from the column on the left, then choose "Delete selected file(s)".
6. If you want to upload another file, choose "Attach another file".
7. Choose "Submit file(s)" once you have uploaded all the files you want to send.

The total size of all files you send cannot exceed 500MB. A limit of ten files per session may apply.

Receiving the confirmation

1. A confirmation screen will appear which includes a confirmation number and a case/reference number.
2. Keep a record of your confirmation number and case/reference number. You can use this case/reference number to submit additional documents related to the original submission.
3. You can print this page for your records by using your browser's print button.

All files you send will be scanned for viruses. We will identify any unacceptable files and will contact you with instructions for sending the files again using a different method.

If you have technical problems submitting documents online, contact us for assistance.

• Individual tax enquiries (My Account, Represent a Client for individuals)
• Business enquiries (My Business Account, Represent a Client for businesses)

If you have If you have questions about a CRA request to submit documents, contact the CRA official who requested the documents.