Hi expert. I did me and my spouse tax using Turbo tax every year and fill on both my sons as dependents. My elder son now studying in university and he is 20 years old. We didn't realize that he need to start filing his own tax.
We get him to registered CRA account but upon entering his SIN number we encounter some sort of "account mismatch". I'm not sure this is cause by we entered his name and SIN number in our filling?
