Austria IBAN
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Your bank’s statement is the binding source of your IBAN. Calculated from the SWIFT IBAN Registry, updated September 17, 2026. Not a service of any bank. · Disclaimer
An IBAN from Austria has 20 characters. Enter the Bankleitzahl and account number above to calculate one, or switch to “Check” to test an IBAN you have.
How an IBAN from Austria is built
The registry’s example, AT61 1904 3002 3457 3201, split into its parts:
- CountryAT
- Check digits61
- Bank code (BLZ)19043
- Account number00234573201
| Part | Positions | Format | In the example |
|---|---|---|---|
| Country | 1–2 | 2 letters | AT |
| Check digits | 3–4 | 2 digits | 61 |
| Bank code (BLZ) | 5–9 | 5 digits | 19043 |
| Account number | 10–20 | 11 digits | 00234573201 |
What the parts are called in Austria
An Austrian IBAN has 20 characters: AT, two check digits, the 5-digit Bankleitzahl and an 11-digit Kontonummer, padded with zeros on the left.
Austrian account numbers are often shorter than 11 digits. The zeros on the left are part of the IBAN and are added automatically by the calculator.
The check digits of AT61 1904 3002 3457 3201
- Move the first four characters to the end: 1904300234573201AT61
- Replace each letter by a number (A = 10, B = 11 … Z = 35): 1904300234573201102961
- Divide that number by 97. The remainder is 1; a valid IBAN always leaves 1.
- To calculate the check digits instead, put 00 in their place: the remainder is 37, and 98 − 37 = 61.
Registry facts
- SEPA
- yes (per SWIFT IBAN Registry)
- IBAN also used in
- —
- IBAN in use since
- April 2007
- Format last updated
- October 2025
- Registered by
- PSA Payement Services Austria GMBH
Questions people ask
How many characters does an IBAN from Austria have?
20: the country code, 2 check digits and a 16-character national number (5 digits + 11 digits).
Is an Austrian IBAN shorter than a German one?
Yes, 20 characters against 22: the bank code has 5 digits instead of 8, the account part 11 instead of 10.
Do Austrian IBANs have a national check digit?
The IBAN format keeps no position for one. The two IBAN check digits catch typing errors.