Average Age Question

[nicemann]

I am trying to figure out my average age of my accounts.  I am a lot of new accounts so I am trying to figure it out to the month.  My question....do you count collections into the age?  For example I have a paid collection that is dated 6/1/04. 

When doing the AAoA you count all TLs, good bad, closed or open correct?

Thanks!

[llecs]

It includes only OC TLs, good or bad. CAs and PRs are omitted from AAoA.

[nicemann]

Thank you....it is a CA so I guess it doesn't count.