Do you have to notice previous employer for new SIN NUMBER???

[babebabe]

Hello, guys! after you guys change for the new sin, next year when you file tax, you will have different T4 show different SIN???
or the old sin has already expired, the previous employer also can't use it???
Anybody has some experience want to share???
thanks!!!

 

[rezafc]

Hello, guys! after you guys change for the new sin, next year when you file tax, you will have different T4 show different SIN???
or the old sin has already expired, the previous employer also can't use it???
Anybody has some experience want to share???
thanks!!!

Once you apply for the new SIN number your previous one gets expired. So it's best to notify your employer after you change your SIN.

 

[PMM]

Hi

Hello, guys! after you guys change for the new sin, next year when you file tax, you will have different T4 show different SIN???
or the old sin has already expired, the previous employer also can't use it???
Anybody has some experience want to share???
thanks!!!

You don't have to notify previous employers about the new SIN when you do your taxes, CRA will marry up the 2 SINs.

 

[babebabe]

Anyone can share some experience with me? Many thanks

 

[maniac2403]

Anyone can share some experience with me? Many thanks

As PMM said above, only need to inform your current employer. Your old SIN number will be tied to your new one by CRA.