Credit Card Account Age - Date Opened vs. Date Reported

[elsijfdl]

Which date is used for determining a revolving credit card account's age?

I have read it is date opened; does this mean I can open a card, wait ten years, use it one month, pay it off, and then it appears to the CRAs that I have been actively using and paying on time for ten years?

[tonsers]

Age of account is determined by when you opened it. Most creditors, though, will close your account after several months with no activity.

[Anonymous]

Date Opened. Date Reported is just the last time the info was updated by the lender.

[Anonymous]

FICO birthdays are done by month anyway, not the individual day the account was first reported as open. Inquiries come off 2 years to the day.