Structure of Swift code

The format of SWIFT code is given below

AAAA BB CC DDD

The SWIFT code is 8 or 11 characters, made up of:

• 4 letters: Institution Code or bank code.
• 2 letters: ISO 3166-1 alpha-2 country code
• 2 letters or digits: location code
  • if the second character is "0", then it is typically a test BIC as opposed to a BIC used on the live network.
  • if the second character is "1", then it denotes a passive participant in the SWIFT network
  • if the second character is "2", then it typically indicates a reverse billing BIC, where the recipient pays for the message
  • as opposed to the more usual mode whereby the sender pays for the message.
• 3 letters or digits: branch code, optional ('XXX' for primary office)

Where an 8-digit code is given, it may be assumed that it refers to the primary office.