Typically, your payments will start the month after you file for bankruptcy. You should receive an Order to Pay from the trustee that has your payment amount. Your payment is due by the 22nd of every month so that the trustee has time to process it before the end of the month. This does not mean that you must wait until the 22nd, however. You can make the payment any time between the 1st of the month and the 22nd of the month.