If you are authorized user on your husband's account and he is going to file bankruptcy will the collection still hold you responsible?

Yes, if you reside in a community property state. No, if you reside in a state that is not CP. This does not mean a creditor will not attempt to collect from the non account holding spouse, but he or she are not legally obligated to repay the debt. One other rare exception is if the couple resided in a state which has a necessities law petaining to creditor accounts. Although these laws are valid in the states in which they exist, a creditor seldom uses them to collect debts owed as they are somewhat difficult to prove to the satisfaction of the court.