I forgot to renew my SIN after I got my after graduation work permit. I have accidentally been working with an expired SIN for two years. I am getting ready to apply for PR. I am going to renew the SIN ASAP but will this affect my CEC application? I have been working and doing taxes with CRA the whole time with no problem. I'm hoping it won't be a problem for my application. I have had a valid work permit the whole time I have been working.