<prompt> Human: Im trying to help her improve her credit, and wasnt sure if this would make a difference. I added her to my Lowes credit card when I opened the account with them, and we are on a car loan together. Those are the only things that show on her account when we check it with credit karma. The Lowes card shows for her on TransUnion, but Equifax shows no credit history as shes never had a credit card before. Im wondering if I add her as an authorized user to my other cards now, will they eventually show up on her report as well? The thing that doesnt make sense to me is the Lowes card shows on both my TransUnion and Equifax, but on hers it only shows on TransUnion. Thanks in advance for any helpadvice.  <response>: It can help, a little boost. Id only recommend it for cards under 30 utilization. What will help far more, in the long run, will be to add her as an AU on a few accounts then have her get her own accounts. Lenders can tell if its an AU account, so it gets far less weight from some lenders and on big loans. 