When are the processing times for Bill Pay? As of April 7, 2025, Alliant has updated its bill pay processing time to 3 p.m. CT, Monday through Friday. The earliest possible Send Date and Deliver Date will be displayed in the “Pay A Bill” screen for each payee. If you need to stop a previous Bill Pay request, you must do so before 1 p.m. C.T. of the scheduled date. For more details, please see the Bill Pay agreement.