Table summarizes formats of IBAN (International Bank Account Number) numbers used in different countries.

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IBAN codes#

Country id	Country name	IBAN length	IBAN format	Legend
AL	Albania	26	kk bbbs sssx cccc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, x - Extra national check digits (specific for given region), c - Account number itself.
AD	Andorra	22	kk bbbb ssss cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, c - Account number itself.
AT	Austria	18	kk bbbb bccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
AZ	Azerbaijan	26	kk bbbb cccc cccc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
BH	Bahrain	20	kk bbbb cccc cccc cccc cc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
BY	Belarus	26	kk bbbb aaaa cccc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
BE	Belgium	14	kk bbbc cccc ccxx	k - IBAN check digits for whole number, b - National bank code specific to given region, x - Extra national check digits (specific for given region), c - Account number itself.
BA	Bosnia and Herzegovina	18	kk bbbs sscc cccc ccxx	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, x - Extra national check digits (specific for given region), c - Account number itself.
BR	Brazil	27	kk bbbb bbbb ssss sccc cccc ccct O	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, c - Account number itself, O - Owner account number.
BG	Bulgaria	20	kk BBBB ssss ttcc cccc cc	k - IBAN check digits for whole number, B - International bank code (BIC), s - Bank branch code, c - Account number itself.
CR	Costa Rica	20	kk 0bbb cccc cccc cccc cc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
HR	Croatia	19	kk bbbb bbbc cccc cccc c	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
CY	Cyprus	26	kk bbbs ssss cccc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, c - Account number itself.
CZ	Czech Republic	22	kk bbbb ssss sscc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, c - Account number itself.
DK	Denmark	16	kk bbbb cccc cccc cc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
DO	Dominican Republic	26	kk bbbb cccc cccc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
TL	East Timor	21	kk bbbc cccc cccc cccc cxx	k - IBAN check digits for whole number, b - National bank code specific to given region, x - Extra national check digits (specific for given region), c - Account number itself.
EE	Estonia	18	kk bbss cccc cccc cccx	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, x - Extra national check digits (specific for given region), c - Account number itself.
FO	Faroe Islands	16	kk bbbb cccc cccc cx	k - IBAN check digits for whole number, b - National bank code specific to given region, x - Extra national check digits (specific for given region), c - Account number itself.
FI	Finland	16	kk bbbb bbcc cccc cx	k - IBAN check digits for whole number, b - National bank code specific to given region, x - Extra national check digits (specific for given region), c - Account number itself.
FR	France	25	kk bbbb bsss sscc cccc cccc cxx	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, x - Extra national check digits (specific for given region), c - Account number itself.
GE	Georgia	20	kk bbcc cccc cccc cccc cc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
DE	Germany	20	kk bbbb bbbb cccc cccc cc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
GI	Gibraltar	21	kk BBBB cccc cccc cccc ccc	k - IBAN check digits for whole number, B - International bank code (BIC), c - Account number itself.
GR	Greece	25	kk bbbs sssc cccc cccc cccc ccc	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, c - Account number itself.
GL	Greenland	16	kk bbbb cccc cccc cc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
GT	Guatemala	26	kk bbbb mmtt cccc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
HU	Hungary	26	kk bbbs sssx cccc cccc cccc cccx	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, x - Extra national check digits (specific for given region), c - Account number itself.
IS	Iceland	24	kk bbbb sscc cccc iiii iiii ii	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, c - Account number itself.
IE	Ireland	20	kk BBBB bbbb bbcc cccc cc	k - IBAN check digits for whole number, b - National bank code specific to given region, B - International bank code (BIC), c - Account number itself.
IL	Israel	21	kk bbbn nncc cccc cccc ccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
IT	Italy	25	kk xbbb bbss sssc cccc cccc ccc	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, x - Extra national check digits (specific for given region), c - Account number itself.
JO	Jordan	28	kk bbbb ssss cccc cccc cccc cccc cc	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, c - Account number itself.
KZ	Kazakhstan	18	kk bbbc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
XK	Kosovo	18	kk bbbb cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
KW	Kuwait	28	kk bbbb cccc cccc cccc cccc cccc cc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
LV	Latvia	19	kk BBBB cccc cccc cccc c	k - IBAN check digits for whole number, B - International bank code (BIC), c - Account number itself.
LB	Lebanon	26	kk bbbb cccc cccc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
LI	Liechtenstein	19	kk bbbb bccc cccc cccc c	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
LT	Lithuania	18	kk bbbb bccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
LU	Luxembourg	18	kk bbbc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
MK	North Macedonia	17	kk bbbc cccc cccc cxx	k - IBAN check digits for whole number, b - National bank code specific to given region, x - Extra national check digits (specific for given region), c - Account number itself.
MT	Malta	29	kk BBBB ssss sccc cccc cccc cccc ccc	k - IBAN check digits for whole number, B - International bank code (BIC), s - Bank branch code, c - Account number itself.
MR	Mauritania	25	kk bbbb bsss sscc cccc cccc cxx	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, x - Extra national check digits (specific for given region), c - Account number itself.
MU	Mauritius	28	kk bbbb bbss cccc cccc cccc 000m mm	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, c - Account number itself.
MC	Monaco	25	kk bbbb bsss sscc cccc cccc cxx	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, x - Extra national check digits (specific for given region), c - Account number itself.
MD	Moldova	22	kk bbcc cccc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
ME	Montenegro	20	kk bbbc cccc cccc cccc xx	k - IBAN check digits for whole number, b - National bank code specific to given region, x - Extra national check digits (specific for given region), c - Account number itself.
NL	Netherlands	16	kk BBBB cccc cccc cc	k - IBAN check digits for whole number, B - International bank code (BIC), c - Account number itself.
NO	Norway	13	kk bbbb cccc ccx	k - IBAN check digits for whole number, b - National bank code specific to given region, x - Extra national check digits (specific for given region), c - Account number itself.
PK	Pakistan	22	kk bbbb cccc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
PS	Palestinian territories	27	kk bbbb xxxx xxxx xccc cccc cccc c	k - IBAN check digits for whole number, b - National bank code specific to given region, x - Extra national check digits (specific for given region), c - Account number itself.
PL	Poland	26	kk bbbs sssx cccc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, x - Extra national check digits (specific for given region), c - Account number itself.
PT	Portugal	23	kk bbbb ssss cccc cccc cccx x	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, x - Extra national check digits (specific for given region), c - Account number itself.
QA	Qatar	27	kk bbbb cccc cccc cccc cccc cccc c	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
RO	Romania	22	kk BBBB cccc cccc cccc cccc	k - IBAN check digits for whole number, B - International bank code (BIC), c - Account number itself.
SM	San Marino	25	kk xbbb bbss sssc cccc cccc ccc	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, x - Extra national check digits (specific for given region), c - Account number itself.
SA	Saudi Arabia	22	kk bbcc cccc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
RS	Serbia	20	kk bbbc cccc cccc cccc xx	k - IBAN check digits for whole number, b - National bank code specific to given region, x - Extra national check digits (specific for given region), c - Account number itself.
SK	Slovakia	22	kk bbbb ssss sscc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, c - Account number itself.
SI	Slovenia	17	kk bbss sccc cccc cxx	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, x - Extra national check digits (specific for given region), c - Account number itself.
ES	Spain	22	kk bbbb ssss xxcc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, x - Extra national check digits (specific for given region), c - Account number itself.
SE	Sweden	22	kk bbbc cccc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
CH	Switzerland	19	kk bbbb bccc cccc cccc c	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
TN	Tunisia	22	kk bbss sccc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, s - Bank branch code, c - Account number itself.
TR	Turkey	24	kk bbbb bxcc cccc cccc cccc cc	k - IBAN check digits for whole number, b - National bank code specific to given region, x - Extra national check digits (specific for given region), c - Account number itself.
AE	United Arab Emirates	21	kk bbbc cccc cccc cccc ccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
GB	United Kingdom	20	kk BBBB ssss sscc cccc cc	k - IBAN check digits for whole number, B - International bank code (BIC), s - Bank branch code, c - Account number itself.
VA	Vatican City	20	kk bbbc cccc cccc cccc cc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.
VG	Virgin Islands	22	kk bbbb cccc cccc cccc cccc	k - IBAN check digits for whole number, b - National bank code specific to given region, c - Account number itself.

Some facts#

IBAN (International Bank Account Number) is a standardized method of numbering bank accounts.
The IBAN standard defines only general scheme allowing validation and recognition of the region where the account is located.
Each IBAN number consists of three constant parts:
- country code - two-letter code defining the region in which the account is located (e.g. PL for accounts in Poland),
- checksum - two-digit number calculated on the basis of other digits, this part allows checking whether the given IBAN number is correct or not,
- regional part - this is part specific for a given region, both its length and the meaning of particular digits depend on local standards agreed in a given country (e.g. in Poland this part consists of 24 digits containing the national bank code, branch code, additional checksum digit and internal bank account number).
To check if the given IBAN number is correct, the following validation algorithm is used:
- ignore whitespaces (spaces, tabs),
- check if the length of the number matches the standard in the given region (basing on the country code),
- move the first 4 characters to the end of the number,
- replace letters by two-digit numbers according to the below rule:
  - A → 10,
  - B → 11,
  - C → 12,
  - etc.
- treat the obtained digits as one number and calculate its remainder of division by 97,
- IBAN is correct if the remainder of the division is 1, otherwise the number is invalid.