If a credit card company shows an account as charged off every month does this keep it from every having a date of last activity reported?

Updating the status, or reporting, of a charged off account is NOT SUPPOSED TO have any bearing on the DLA, or how long an account shows on your credit report. (although it does cause this account to affect your credit score)

If the account in question originated prior to December 1997, there is no set way to establish the DLA. For any account originated after that time, the Fair Credit Reporting Act sets out a method by which the DLA is established.

FCRA 15 USC 1681c(c)(1) "...the 7-year period...shall begin...upon the expiration of the 180-day period beginning on the date of the commencement of the delinquency, which immediately preceded the...charge to profit and loss..."

According to this law, the DLA is the last time the account was paid as agreed immediately before it becomes delinquent and gets charged off, plus 180 days (standard in the credit industry for "in-house" collection efforts), plus 7 years. This is the date of last activity on any account, so nothing changes that date. If this date DOES get changed, (re-aging) that would be a violation and grounds for a lawsuit. Once again, this would not apply for accounts that orignated prior to Dec. 1997.