Startseite › Ablehnungscode › AC01
AC01Die IBAN oder Kontonummer des Empfängers ist ungültig oder existiert bei der Empfängerbank nicht.
AC01 is the most common SWIFT reject code. It means the account number provided (usually an IBAN) either fails the check-digit validation or does not match any account at the beneficiary bank.
Most AC01 rejections are caused by a single transposed digit in the IBAN. The IBAN check-digit algorithm catches many of these before the payment even leaves the bank — but not all errors are caught at entry.
Funds are returned within 2–5 business days. Get the correct IBAN directly from the beneficiary's bank statement or account-opening letter before resending.
Holen Sie sich die korrekte IBAN vom Kontoauszug des Empfängers und prüfen Sie diese vor der Überweisung.
Track your payment by UETR — free on Ohmyfin: SWIFT-Tracker
→ Full AC01 reference (English)