Austria IBAN Format, Length and Example

How to read this Austria IBAN

• The value starts with AT, the IBAN country code for Austria.
• The next two characters are international check digits.
• The remaining 16 characters are the country-specific BBAN section: 16 digits after the country code and check digits.
• Austrian IBANs use a 20-character structure with a numeric BBAN in the example shown here.
• Because the value is mostly digits after AT, missing or transposed digits are the most common copy issue.

Worked example

Use the example below to compare what an invoice might show with what a payment form or validator usually receives after spaces are removed.

Input shown on page

AT61 1904 3002 3457 3201

Normalized digital value

AT611904300234573201

Expected length

20 characters

Result interpretation

Passing format checks still does not confirm a real account, owner, bank reachability, or payment success.

What the format check reviews

• Whether the IBAN starts with the AT country code.
• Whether the IBAN has 20 characters after normalization.
• Whether the value uses allowed letters and digits.
• Whether the MOD97-10 checksum is valid.

Common Austria IBAN mistakes

• Dropping a digit when moving from grouped print format to a compact form field.
• Treating a passed checksum as confirmation that the Austrian payee details are correct.

When this page is useful

• Checking Austrian invoice details before entering the compact AT value into a payment form.
• Explaining why spaces can be removed without changing the underlying IBAN.
• Use the IBAN Checker after this page when you need a local checksum result for one value.

What it cannot confirm

• Format checks do not confirm that the account exists or belongs to the intended payee.
• They do not confirm bank reachability, payment readiness, or payment success.
• Use the detailed disclaimer for the full list of non-verified items.

Austria SEPA context

The local SEPA country reference data lists this country as: SEPA country - EU. Country-level SEPA status does not confirm that a specific bank or account can receive a payment.

Limitation note

This page explains IBAN format rules only. It is not a bank, account, sanctions, fraud-risk, or payment-network check.

Before using this IBAN format for payment

A structurally valid IBAN can still be wrong for a real transfer. Always verify payment details with the invoice issuer, recipient, bank, or payment provider before sending money.

FAQ

Last reviewed: 2026-06-28 Sources: Swift IBAN Registry, European Payments Council SEPA scheme countries list Reference data is reviewed periodically. BankCodeKit does not perform live bank, account, sanctions, or payment-network confirmation.