Originally Posted by BradM

Credit is based on your SSN. Without one there is no such thing as "building credit".

If you ever qualify for a SSN or think you might - there are a small amount of things you can do:

1) Apply for a Target card with your SIN.
2) Get a Sears card
3) Go to a "Macy's" in the US, signup for a Macy's card. You can get one with a SIN.

When you get your SSN, simply add it to the account and remove your SIN. Instant credit.

I have an amazing rating because of this tactic.