R81 - Non-Participant in IAT Program
The Gateway Operator or RDFI does not participate in the IAT program and cannot process International ACH Transactions.
R81 - Non-Participant in IAT Program
The Gateway Operator or RDFI does not participate in the IAT program and cannot process International ACH Transactions. This rejection is final: resubmitting the same payment will fail again — resolve the underlying situation first.
What this code means
The Gateway Operator or RDFI does not participate in the IAT program and cannot process International ACH Transactions.
Typical causes
- Receiving institution does not support IAT
- Gateway operator not enabled for the destination country
- IAT sent to a domestic-only institution
What to do
Do not re-send as IAT to this institution. Use a participating gateway or an alternative cross-border rail.
What it looks like in an ACH return
The return arrives as an Addenda Record (type 99), 94 characters wide. The return reason code sits in positions 4-6.
799R81091000010000001 09100001 091000019000001Tools for this code
Decode a real status report, or check a payment file before you send it — all in your browser, nothing uploaded.
Related codes
Source: Nacha ISO 20022 mapping guide + Federal Reserve ACH Return Reason Report + US Treasury Green Book · Last verified: 2026-07-13
Checked against: nacha.org · frbservices.org