MyklLawk

I am submitting a tax return for my daughter for the first time. I'm getting the following error when I submit. "The information sent to the Canada Revenue agency doesn't match the information currently on record." I have spoken with the CRA's e-Services Helpdesk who instructed me to confirm that the identifying information is correct. I have confirmed that the first and last name, social insurance number, and date of birth are all correct. Please advise.