Average Age of your credit files contribute 15 % toward the credit scores. (creditexpertllc.com)
Before I started, I opened a bunch of no - fee cards so I could keep them around forever and accumulate a good average age of credit number. (moneyboss.com)
3) There is a theory that your score may also get affected as a result of a now lower average age of credit, but I personally dispute this theory (I'm allowed to, right?) (helpmebuildcredit.com)