This new scheme – officially launched in November 2017 – enables euro credit transfers with the funds made available on the account in less than ten seconds at any time and in an area that will progressively span over 34 European countries. All payment service providers ( ) are invited to adhere to the scheme as soon as possible. The technical information for implementing the scheme is available on this page.
The Inst rulebook in effect until 21 November 2021 is the 2019 Inst rulebook version 1.0.
The Implementation Guidelines are based on ISO 20022.
The 2019 rulebook contains a clarification about which scheme participants must comply with the mandatory Customer-to-Bank (C2B)
of the rulebook.
The C2B also include usage rules on how a Beneficiary can make a ‘Repayment’ to transfer back funds to the Originator when the Beneficiary has not received the IBAN of the payment account of the Originator in the original Inst transaction.
A Inst transaction containing an IBAN but not the related BIC, can be transmitted by the Originator to the Originator Bank, even if one of the two Inst scheme participants covered by that transaction is based in a non- country.
The 2019 rulebook foresees a third rulebook option for scheme participants if they wish to agree on a shorter hard time-out deadline among themselves. Several changes have also been made to the procedures for Recall and for Request for Recall by the Originator.
Clarifications in Inst rulebook on the concrete point in time where an Inst instruction turns into an Inst transaction, and that the current maximum amount applies to both Inst instructions and Inst transactions have been added.
Annex IV of the 2019 Inst rulebook contains a table listing all changes made compared to the 2017 Inst rulebook version 1.2.