Beautiful! I followed your procedure and am off by only one month, so I am assuming that this is how it is calculated. I also used the 1st of each month as you suggested. This procedure has definite implications on credit score. Thanks for the enlightening idea!
@Anonymous wrote:Yes-
Use ALL accounts-
Copy into Excel and AVG the open date
Current date - avg open date= Avg age
Format the cell yy mm
inquisitive24 wrote: Has anyone been able to average the length of time of each of their accounts and arrive at the same number that is reported? I have open, closed, and revolving accounts, and I have gone through each account in my credit report and tried averaging them a number of different ways but have not yet arrived at the "Average Account Age" reported by Equifax. There are a couple credit cards I have never used and I tried excluding these but I still don't arrive at the right number.