R80 - IAT Entry Coding Errors
The International ACH Transaction contains coding errors - the IAT entry or its mandatory addenda records are not coded in accordance with the IAT format requirements.
R80 - IAT Entry Coding Errors
The International ACH Transaction contains coding errors - the IAT entry or its mandatory addenda records are not coded in accordance with the IAT format requirements. This rejection is recoverable: correct the cause and the same payment can be resubmitted.
What this code means
The International ACH Transaction contains coding errors - the IAT entry or its mandatory addenda records are not coded in accordance with the IAT format requirements.
Typical causes
- Mandatory IAT addenda records missing or malformed
- Foreign exchange indicator or ISO country/currency code invalid
- OFAC screening data fields incorrectly populated
What to do
Correct the IAT coding (including the 7 mandatory addenda records) and re-send. Not a reinitiation.
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.
799R80091000010000001 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