The bank overdue epidemic isolation certificate can be written by adjusting the bill plan. Because the bank's overdue epidemic isolation certificate can selectively adjust the billing plan in stages, reduce the current installment repayment amount, and postpone it to the next month; It can also extend the overall term of the loan, postpone the maturity date and reduce the installment repayment amount. Therefore, the bank overdue epidemic isolation certificate can be written by adjusting the bill plan.