The number

The IBAN (International Bank Account Number) stems from works engaged within the European Committee of Banking Standardization (CENB) and the International Standard Organization (ISO), to facilitate the treatment of the international but especially cross-border operations from the beggining to the end.It allows the principal banker to seize quickly a number without a break between the operation.

The IBAN was adopted in Europe according to the European circular AFB n°97/075 and by the Norm ISO n°13616.

The structure is as following : PP CC NNNN … NN

. PP is equivalent to the country code ISO 3166 (for Burundi = "BI")
. CC is a verified digit number (see method of calculation farther)
. NNNN … NN is equivalent to the BBAN used in the bank.

In BURUNDI, the number IBAN of the account 201-0005272-81 will be "BI24 2010 0052 7281".


The calculation of the digit number

Priliminary stage :

We create an "artificial" IBAN, consisted of the country code, followed by "00" and by the BBAN with only alphanumeric characters.
Example : from the number "201-0005272-81" to BI00 2010 0052 7281

This calculation has to be made in 3 stages :

Stage 1 :
Indicate the number BBAN followed by the country code and of "00".
Example: for the number "201-0005272-81" to 201000527281 BI 00.


Stage 2 :
Convert letters into digit numbers, according to the table of conversion below.
Example: 201000527281 1118 00

Stage 3 :
Apply Modulo 97 and deduct the rest of 98, if the result contains a single digit only , put one "0" in front. Insert the result obtained in the position 3 of IBAN (just after the country code ).
Example: 98 - 74 = 24 the IBAN of our account will be "BI24 2010 0052 7281"