If you
are unsure of your residency status, you will need to contact the CRA and
confirm: https://turbotax.community.intuit.ca/replies/2647704
Use your most recent SIN number when it asks on
your return, and then put the t4s in normally. The CRA should be aware of your
SIN number change, though they may ask for a copy of the T4 after you have
filed.
