Public
Welcome to the public document library, where you can find our most used documents in one easy-to-access location. These documents can be used by anyone.
Please note this is not an exhaustive list of documents you may need. To find more information, please use our search function or access the guide and rules.
Bacs Payment System processing calendar 2025
The 2025 Bacs Payment System processing calendar showing non processing dates and indicating Julian dates to assist with processing payment files
The Bacs Book
The essential guide for making and collecting payments by Bacs Direct Credit and Direct Debit
Bacstel-IP password help
Bacstel-IP password help
ISO 20022 / Bacs Translation Guide
A description of how Bacs services can be used by organisations that use ISO 20022
AUDDIS - Automated Direct Debit Instruction Service
Outlines the benefits of the Automated Direct Debit Instruction Service (AUDDIS)
Bacs guide to AUDDIS migration
The essential guide for organisations wanting to find out more about the benefits of the Automated Direct Debit Instruction Service and how to get started
Direct Debit - an introduction to the service
The business benefits of Direct Debit and how to get started using it
Bacs payment services - contact's guide
Guide for individuals who are registered as contacts to use payment services
Bacs guide to becoming a user of Direct Debit
The essential guide for organisations wishing to collect payments by Direct Debit, outlining the different options to becoming a user
Centralised non AUDDIS DDIs
Contact details of paying banks that process new non AUDDIS DDIs centrally
Bacs guide to Bacs Direct Credit
The essential guide for users or potential users of Bacs Direct Credit
DDI A4 with official use box
A4 size sample Direct Debit Instruction including an official use box