How does the credit know who your authorized user is? I added my husband as an authorized user a couple of years ago. He didn't have a SS# yet as he was just in the process of getting his US permanent residence. Now he has his SS# and he has an acct at NFCU with a secured credit card to try to establish credit since the end of July. We were just FINALLY able to see his FICO score and my Amazon card showed up on his account. I'm glad as it helps his age of the account, I just wonder how they matched it up. Also, I just added him as an AU on my Sam's Club charge card and she didn't want his SS#. So I guess I'll just have to wait and see if it shows up on his account.