SSN
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Social Security Number (SSN) How to obtain

FAQ: Obtaining Your EAD and SSN

We highly recommend that you go to the SSN website for the most up to date information.
This number is similar to the Canadian Social Insurance # - it is what employers use to report your taxes to the U.S. Internal Revenue Service, and what lenders use when you apply for credit. You will need to have a SSN in conjunction with your Employment Authorization Document in order to work in the U.S., or to get U.S. credit based loans or credit cards. It is free to apply.