Likewise, closing old accounts in good standing can shorten your average credit history and actually damage your score in the short term. (thesimpledollar.com)
Depending on the account status, ongoing damage may be occurring from these various types of old accounts. (stockmonkeys.com)
People who enjoy periodically taking advantage of signup bonuses on new accounts should be particularly concerned with keeping old accounts open in order to maintain a high average account age. (creditsesame.com)