If it has already been overdue for more than 5 years, banks or other lending institutions may sue you, and they may also come to collect the debt. But it depends on whether they are still within the valid period to take legal action. Usually, the law has a certain statute of limitations for lawsuits; after this period, they may have no way to deal with you. However, it is best to deal with it early to avoid being sued or having debt collectors come to your door. Overdue payments and lawsuits are best resolved as soon as possible.