An IBAN account check is performed in bank account fields.
The IBAN structure is defined in ISO 13616-1 and consists of a two-letter ISO 3166-1 country code, followed by two check digits and up to thirty alphanumeric characters for a BBAN (Basic Bank Account Number) which has a fixed length per country and, included within it, a bank identifier with a fixed position and a fixed length per country. The check digits are calculated based on the scheme defined in ISO/IEC 7064 (MOD97-10).
Det finns inga mellanslag i de elektroniska IBAN-numren.
| Land | Längd | IBAN-format |
|---|---|---|
| Andorra | 24 | ADkk BBBB SSSS CCCC CCCC CCCC |
| Belgien | 16 | BEkk BBBC CCCC CCCC |
| Bosnien och Hercegovina | 20 | BAkk BBBS SSCC CCCC CoKK |
| Bulgarien | 22 | BGkk BBBB SSSS DDCC CCCC CC |
| Cypern | 28 | CYkk BBBS SSSS CCCC CCCC CCCC CCCC |
| Danmark | 18 | DKkk BBBB CCCC CCCC CC |
| Estland | 20 | EEkk BBBB CCCC CCCC CCCK |
| Färöarna | 18 | FOkk CCCC CCCC CCCC CC |
| Finland | 18 | FIkk BBBB BBCC CCCC CK |
| Frankrike | 27 | FRkk BBBB BGGG GGCC CCCC CCCC CKK |
| Gibraltar | 23 | GIkk BBBB CCCC CCCC CCCC CCC |
| Grekland | 27 | GRkk BBB BBBB CCCC CCCC CCCC CCCC |
| Grönland | 18 | GLkk CCCC CCCC CCCC CC |
| Irland | 22 | IEkk AAAA BBBB BBCC CCCC CC |
| Island | 26 | ISkk BBBB CCCC CCCC XXXX XXXX XX |
| Israel | 23 | ILkk BBB NNN CCCCCCCCCCCCC |
| Italien | 27 | ITkk ABBB BBCC CCCX XXXX XXXX XXX |
| Kroatien | 21 | HRkk BBBB BBBC CCCC CCCC C |
| Lettland | 21 | LVkk BBBB CCCC CCCC CCCC C |
| Liechtenstein | 21 | LIkk BBBB BCCC CCCC CCCC C |
| Litauen | 20 | LTkk BBBB BCCC CCCC CCCC |
| Luxemburg | 20 | LUkk BBBC CCCC CCCC CCCC |
| Makedonien | 19 | MKkk BBBC CCCC CCCC CKK |
| Malta | 31 | MTkk BBBB SSSS SCCC CCCC CCCC CCCC CCC |
| Monaco | 27 | MCkk BBBB BGGG GGCC CCCC CCCC CKK |
| Montenegro | 22 | MEkk BBBC CCCC CCCC CCCC KK |
| Nederländerna | 18 | NLkk BBBB CCCC CCCC CC |
| Norge | 15 | NOkk BBBB CCCC CCK |
| Polen | 28 | PLkk BBBB BBBk CCCC CCCC CCCC CCCC |
| Portugal | 25 | PTkk BBBB BBBB CCCC CCCC CCCK K |
| Rumänien | 24 | ROkk BBBB CCCC CCCC CCCC CCCC |
| San Marino | 27 | SMkk ABBB BBCC CCCX XXXX XXXX XXX |
| Saudiarabien | 24 | SAkk BBCC CCCC CCCC CCCC CCCC |
| Schweiz | 21 | CHkk BBBB BCCC CCCC CCCC C |
| Serbien | 22 | RSkk BBBC CCCC CCCC CCCC CC |
| Slovakien | 24 | SKkk BBBB CCCC CCCC CCCC CCCC |
| Slovenien | 19 | SIkk BBBB BCCC CCCC CKK |
| Spanien | 24 | ESkk BBBB GGGG KKCC CCCC CCCC |
| Storbritannien | 22 | GBkk BBBB SSSS SSCC CCCC CC |
| Sverige | 24 | SEkk BBBB CCCC CCCC CCCC CCCC |
| Tjeckien | 24 | CZkk BBBB CCCC CCCC CCCC CCCC |
| Turkiet | 26 | TRkk BBBB BRCC CCCC CCCC CCCC CC |
| Tunisien | 24 | TNkk BBBB BCCC CCCC CCCC CCCC |
| Tyskland | 22 | DEkk BBBB BBBB CCCC CCCC CC |
| Ungern | 28 | HUkk BBBB BBBC CCCC CCCC CCCC CCCC |
| Österrike | 20 | ATkk BBBB BCCC CCCC CCCC |