🇮🇸 IBAN COUNTRY PROFILE · Iceland

Check an IBAN from Iceland and understand its structure

An IBAN for Iceland always contains 26 characters. After IS and two IBAN check digits, the national BBAN contains 4-character bank identifier, 6-character branch identifier and 12-character account part. In addition to the structure and international check digits, IBAN-Test checks the 4-character bank identifier against its Iceland directory and returns available bank details, including the BIC.

26 charactersFixed total length
22 charactersNational BBAN
ISISO country code

Structure of an IBAN from Iceland

The reference example IS14 0159 2600 7654 5510 7303 39 shows the country-specific components. It is provided for explanation only and is not a request to make a payment.

IS 14 0159 26 007654 5510730339
ISCountry code
14IBAN check digits
0159Bank identifier
26Account part
007654Branch identifier
5510730339Account part
PositionLengthComponentFormat
1–22Country codeLetters: IS
3–42IBAN check digitsDigits
5–84Bank identifierDigits
9–102Account partDigits
11–166Branch identifierDigits
17–2610Account partDigits

Validate an IBAN for Iceland

This validator accepts only IBANs from the selected country.

What IBAN-Test validates for Iceland

Validation covers normalization, country assignment, the fixed 26-character length, the country-specific segment structure, MOD-97 and the known 4-character bank identifier. When the identifier matches the Iceland directory, available bank details including the BIC are returned. Account ownership and real-time account existence are not checked.

1. Normalize the input

Spaces are removed and the representation is normalized.

2. Country and structure

IS, the length and the segment sequence are checked.

3. MOD-97

The international checksum catches many typing errors.

4. Bank directory

The 4-character bank identifier is checked against verified Icelandic commercial-bank number ranges.

Validation stepAvailableDetails
Country, length and structureYesIS, 26 characters; 4-character bank identifier, 6-character branch identifier and 12-character account part.
MOD-97 checksumYesMathematical IBAN validation.
Known bank identifierYesThe 4-character identifier is checked against verified Icelandic commercial-bank number ranges.
National account checkNoNo separate Icelandic account-checksum method is applied.
Bank details and BICYesFor a matched identifier, BIC, bank name, city, postcode and address are returned.
IBAN name checkNoNo comparison between an account holder’s name and the IBAN.
Account existenceNoNo request is sent to the account-holding institution.

Validate an IBAN from Iceland 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=IS14 0159 2600 7654 5510 7303 39'

For Iceland, the response also checks the 4-character bank identifier against the available bank directory and returns matching bank details, including the BIC.

Generate an IBAN for Iceland

The generator accepts up to 4 characters for bankcode and 18 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=IS' \
  --data-urlencode 'bankcode=0159' \
  --data-urlencode 'accountnumber=260076545510730339'

What a valid IBAN from Iceland 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.

Registry rules can change

Country formats may be updated when the official registry changes.

Privacy: The input is transmitted only for validation and is not placed in the page URL.

Bank data validation

Validation against bank directories

For these countries, we check IBANs against available bank directories and return bank details such as institution, city and BIC when available.

ALAlbania ADAndorra ATAustria BEBelgium BGBulgaria HRCroatia CYCyprus CZCzech Republic DKDenmark EEEstonia FIFinland FRFrance DEGermany GIGibraltar GRGreece HUHungary ISIceland IEIreland ITItaly LVLatvia LILiechtenstein LTLithuania LULuxembourg MTMalta MDMoldova MEMontenegro NLNetherlands MKNorth Macedonia NONorway PLPoland PTPortugal RORomania SMSan Marino RSSerbia SKSlovakia SISlovenia ESSpain SESweden CHSwitzerland VAVatican City

IBAN syntax check

Format checks for 115 IBAN formats

Check IBANs for a valid structure, correct length and checksum. This helps you catch typos and transposed digits before a payment fails. Additional bank validation against real bank directories is available for the countries listed above.

MCP Server for AI Agents - Connect AI clients to IBAN validation tools - https://www.iban-test.eu/mcp - API Documentation