My SIN is from Quebec , I live in Ontatrio now my SIN is not being accepted why ?

Thank you for your question.

Please make sure that you are not using any spaces or special characters. The SIN should be 9 numbers, no spaces, like this: 123456789

As per the Canada Revenue Agency (CRA),  this is the description of the error found on the slip after the validation process.

Invalid SIN:

• the SIN is not in the Social Insurance Register
• the SIN field is blank or 0s were entered
• SIN digits are reversed

It could also be a sin/surname mismatch 

• Surname is missing
• Surname has change
• Name/Surname reversal

Here are more links from the CRA  and the Government of Canada that may assist you. 

For guidance, please scroll down to the Error description in this link: Invalid SIN or SIN/surname problem report.

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