On February 26, 2021, the CRA website was updated to provide guidance on changing or canceling CEWS and CERS claims. It notes:
You may request adjustments or cancel applications you have already submitted.
To change a previous rent subsidy claim, visit:
The deadline to change your application using My Business Account or Represent a Client, or to increase the amount of your claim, is 180 days after the end of the period.
If you need to cancel or reduce the amount of your claim after the deadline, you may call CRA’s business enquiries phone number.
You will need to make sure you continue to meet eligibility requirements for any updated claims, and keep records supporting your rent subsidy claim adjustment.
When completing the adjustment, you will need:
your CERS number / payroll program account number
to know which claim period you are adjusting
all of the information necessary to change the amount on each line you would like to adjust
CERS - To cancel an application, change the amount on lines 120, 130, 140, 150, 160, and 310 to zero. Do not change any other fields, including the property information details.
CEWS - To cancel an application, change the amounts on lines C, D, E, F, and G to zero. Do not change lines c2 or c3.
Representatives who are changing or cancelling a claim on behalf of an eligible entity must be authorized at level 2 or 3. You will need to have an updated Attestation for owner/managers and/or senior employees to support the amended application.