1. Normalize the input
Spaces are removed and the representation is normalized.
🇦🇹 IBAN COUNTRY PROFILE · Austria
Check an IBAN from Austria and understand its structure
An IBAN for Austria always contains 20 characters. After AT and two IBAN check digits, the national BBAN contains 5-character bank identifier and 11-character account part. IBAN-Test can additionally compare the bank identifier with the available bank directory for Austria.
20 charactersFixed total length
16 charactersNational BBAN
ATISO country code
Structure of an IBAN from Austria
The reference example AT61 1904 3002 3457 3201 shows the country-specific components. It is provided for explanation only and is not a request to make a payment.
AT 61 19043 00234573201
ATCountry code
61IBAN check digits
19043Bank identifier
00234573201Account part
| Position | Length | Component | Format |
|---|---|---|---|
| 1–2 | 2 | Country code | Letters: AT |
| 3–4 | 2 | IBAN check digits | Digits |
| 5–9 | 5 | Bank identifier | Digits |
| 10–20 | 11 | Account part | Digits |
Validate an IBAN for Austria
This validator accepts only IBANs from the selected country.
What IBAN-Test validates for Austria
Validation covers normalization, country assignment, the fixed 20-character length, the country-specific segment structure and MOD-97. Account ownership and real-time account existence are not checked.
2. Country and structure
AT, the length and the segment sequence are checked.
3. MOD-97
The international checksum catches many typing errors.
4. Available depth
The bank identifier is compared with the available directory.
| Validation step | Available | Details |
|---|---|---|
| Country, length and structure | Yes | AT, 20 characters; 5-character bank identifier and 11-character account part. |
| MOD-97 checksum | Yes | Mathematical IBAN validation. |
| Known bank identifier | Yes | Compared with the available bank directory for Austria. |
| National account check | No | No additional national account check method. |
| Bank details and BIC | When available | Returned from the available bank directory. |
| IBAN name check | No | No comparison between an account holder’s name and the IBAN. |
| Account existence | No | No request is sent to the account-holding institution. |
Validate an IBAN from Austria via API
The same validation is available through the REST API. The IBAN is sent in the request and is not placed in a public, indexable URL.
curl --get 'https://www.iban-test.eu/api/v2/iban/validate' \
--header 'Authorization: Bearer YOUR_API_TOKEN' \
--data-urlencode 'iban=AT61 1904 3002 3457 3201'When available, the response can include bank details from the country-specific directory.
Generate an IBAN for Austria
The generator accepts up to 5 characters for bankcode and 11 characters for accountnumber. It then calculates the IBAN check digits and validates the result.
curl --get 'https://www.iban-test.eu/api/v2/iban/generate' \
--header 'Authorization: Bearer YOUR_API_TOKEN' \
--data-urlencode 'countrycode=AT' \
--data-urlencode 'bankcode=19043' \
--data-urlencode 'accountnumber=00234573201'What a valid IBAN from Austria does not prove
Formal validity is a strong signal against input errors, but it is not real-time confirmation of an account.
No existence confirmation
The account may be closed or unreachable.
No account-holder match
A person or company name is not compared with the IBAN.
No payment guarantee
A valid IBAN does not guarantee that a payment will be accepted.
Bank data can change
Results depend on the bank directory currently available to IBAN-Test.
Privacy: The input is transmitted only for validation and is not placed in the page URL.