We will provide an update with further information on when support for MT format payment imports will end. These formats can continue to be used by customers for the time being.
However, as MT formats are being replaced by MX formats across the industry, and with no provision for enhanced data fields in MT message types, it would be prudent to plan to migrate to an alternative format (ISO 20022 MX based or Bankline CSV) by November 2025.
Some customers may find they need to switch from MT messages earlier. For example if you are making certain property related CHAPS payments then from May 2025 you will need to supply an appropriate purpose code, and the MT message format has no field to supply this in.