Young Authorized User Trade Line

[Anonymous]

My husband and I are applying for a new home loan and looking to up each other's score. I have a one year old WaMu card with a zero balance and $15K limit. Is the card too young to increase his score if I add him on as an authorized user?

[Tuscani]

It may help him... it just depends on his credit picture.  I also read this thread:

http://ficoforums.myfico.com/fico/board/message?board.id=ficoscoring&thread.id=4008