Filing Information Returns Electronically (T4/T5 and other types of returns)

4. How to amend

After you file your information return, you may notice that you made an error when preparing the slips. To correct these errors you will have to file amended or cancelled slips.

You can file amended or cancelled slips electronically using the Internet file transfer or Web Forms applications.

Amending or cancelling slips using the Internet file transfer application

When you are filing amended slips

include only the slips that need to be amended
use the report type code “A” on the summary and slips
enter all data that has not changed for the slip and make changes to fields that require corrections
include only the totals from the amended slips on the amended summary
Complete the “Filer Amendment Note” on the summary page to provide reason for amendment. When specific reasons apply for individual slips, include the name of recipient.

When you are filing cancelled slips

include only the slips that need to be cancelled
use the report type code “A” on the summary
use report type code “C” on the slips
enter all data that was on the original slip
include only the totals from the amended slips on the amended summary

Amending returns using the Web Forms application

Start a new Amendment

select the amended option
input information for only the slips that need to be amended
enter all data that has not changed for the slip and make changes to fields that require corrections
cancel slips by entering the exact data you had previously reported and choose the cancel option
review the amended summary that Web Forms creates for you
submit your return
Select “Explanation for amendments” dialogue box to provide reason for amendment. When specific reasons apply for individual slips, include the name of recipient.

Importing a submission that was previously filed using Web Forms

If you have saved a return that was filed using Web Forms you can import it to create your amendment.

When you are filing amended slips

import the original file
select the amending slips option
choose the slips you want to amend
remove the slips that do not require amending
correct the information or financial fields that require corrections
review the amended summary that Web Forms creates for you
submit your return

When you are filing cancelled slips

import the original file
select the “cancelling slips” option
choose the slips you want to cancel
remove the slips that do not require cancelling
keep the information that is on the slip
review the amended summary that Web Forms creates for you
submit your return

Cancelling an entire return you have filed using the Internet File Transfer or Web Forms applications

To cancel an entire return, mail or fax your request to your Tax Centre, to the attention of Employer Services.

To find your Tax Centre, see Tax services offices and tax centers - Addresses, office hours, and fax numbers.

Filing Additional slips

If you need to send additional slips after you have filed your information return. You must send a new original return.

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Filing Information Returns Electronically (T4/T5 and other types of returns) – How to amend