<prompt> Human: So my fiance has been in the US for about 5 years on a work visa. When she went to buy a car in the past year she had a tough time due to not having much of a credit history in the US. There are no issues with bad credit and she makes a great salary. We are looking to buy within a year of us getting married. Maybe sooner, maybe later. However, our concern is her credit history when we go to get a mortgage. I have great credit 780. However, we fear issues when we go to get a mortgage due to her credit history in the statesand the fact that she isnt a citizen yet.So i recently read about adding someone as an authorized user on a credit card. So i wanted to ask some questions. If i add her as an authorized user on a CC that was opened say in 2007, will that show on her credit report as well with the same credit age for that account? Any other considerations i should be thinking about?Will this help our changes of getting a mortgagethat will include her income? Or is her not being a citizen another hurdle we will have to battle?Thanks in advance.  <response>: It does on mine. I have added all my kids to one card I hardly use and for some of them the age of the account is a number of years older than them on their credit report. I picked one I hardly use to help them with utilization. My limit is so much higher than they have on their cards I could overwhelm their utilization rate if i used hard and had a large statement balance. 