I'm a little bit confused about AAoA as it was reported in Score Watch vs. what I think it should be. Hopefully someone can help me out.
My understanding is that AAoA is calculated as an average age of all your accounts (total number of months open for each account divided by number of accounts). I read on the boards that this number includes closed accounts.
If my accounts have been open as follows (as of Score Watch pull), why would Score Watch report my AAoA as 1 year?
CC opened 7/06 (closed 7/07 because CU stopped managing own cards, moved card to new manager, but "transfered card" reports as a "new" account, kind of frustrating given that this was my first card)
CC opened 7/07 (card mentioned above) last reported Dec '09
CC opened 7/08 (closed, last reported 4/09, PIF and charged through quite a bit of "normal" stuff (no porn, liquor, cash advance, etc.) but Amex closed it... :-()
CC opened 7/08 (no, not a typo, mini-app spree) last reported Dec '09
CC opened 10/09 last reported Jan '10
So, assuming that closed accounts still "count" as though they were open today, my AAoA should be somewhere around 2 years, 2 months, right? I went back and "deleted" months following the closure of the two closed cards, but still came up with an average of 15 months (1 year, 3 months) of reporting for my cards. Does that make sense?
Any thoughts as to why Score Watch would get this wrong/see it differently, or am I doing something wrong?
(Open and close dates are per Score Watch report. Also, I know Score Watch reports partial years, because it reported my total history as 3 years, 6 months as of January...)
