http://help.italki.com/Main/MyFinance Your ITC's will not expire as long as you are an active member of italki. ITC's will be valid for six months after your most recent login date. If you do not login at least one time in six months, then your ITC's will expire and be deleted from your account. A reminder is sent out if a member has not logged in within the past 5 months that their ITC's will expire in one month if they do not take action.