SWIFT / BIC Code
PSTSIE21
An Post
PSTSIE21 is the BIC (SWIFT code) of An Post, registered in Dublin. Its bank code is PSTS, the code an IBAN at An Post carries in positions 5 to 8. Its IBANs are 22 characters long. The bank receives SEPA Instant transfers and answers Verification of Payee name checks.
Check an IBAN from An Post
Prefilled with an illustrative An Post IBAN, not a real account. Paste any IBAN from Ireland to check it.
BIC Breakdown
PSTS: institution identifier (4 letters)
IE: country code per ISO 3166-1
21: location code (city / timezone)
Bank Details
Payments it can receive
An Post's participation in the European payment schemes, from the EPC register of participants.
Verification of Payee lets the payer's bank compare the name typed on a euro transfer with the account holder's name. This page shows whether the bank takes part; ibanchecker.cash does not check names.
Sending money to an account at An Post?
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IBAN format for 🇮🇪 Ireland
Ireland IBANs are 22 characters long.
Frequently Asked Questions
What is the SWIFT code for An Post?
PSTSIE21. Written with the head-office branch code it is PSTSIE21XXX; both forms reach the same bank. A euro transfer within SEPA needs only the IBAN.
What does PSTSIE21 mean?
"PSTS" identifies An Post, "IE" is the country code for Ireland, "21" is the location code.
What is An Post's bank code?
PSTS. It is the bank code in positions 5 to 8 of an IBAN from Ireland. The BIC Derivation Rules for Ireland lists it.
How long are An Post IBANs?
22 characters, like every IBAN from Ireland: the country code IE, two check digits, the bank code (4 letters, PSTS for An Post), the sort code (6 digits) and the account number (8 digits).
Can I send an instant transfer to An Post?
Yes. The European Payments Council lists An Post in SEPA Instant Credit Transfer since 15 November 2024, so an instant euro transfer from a participating bank reaches its accounts in seconds.
Does An Post confirm the payee's name?
Yes. It answers Verification of Payee requests (since 5 October 2025), so the payer's bank can compare the name entered with the account holder's name before a euro transfer is sent.
Where is An Post's registered office?
General Post Office, Dublin 1, D01F5P2 Dublin, according to GLEIF. The European Payments Council lists General Post Office O'Connell Street, Dublin as its address.