Pour les transferts internationaux vers Guernesey, il faut impérativement connaître le code SWIFT/BIC de l’institution bancaire de destination.
Les codes SWIFT se composent de 8 ou 11 caractères (lettres et chiffres); dans le cas de Guernesey, ils ont le format suivant:
Voici la liste des codes SWIFT de Guernesey classés par ordre alphabétique:
| Code SWIFT | Banque | Ville |
| ANSLGGSP | ANSBACHER (CHANNEL ISLANDS) LIMITED | ST.PETER PORT GUERNSEY |
| ANSLGGSPXXX | Ansbacher ( Channel Islands ) Limit | St Peters Port |
| BAERGGSP | BANK JULIUS BAER AND CO LTD (GUERNSEY BRANCH) | ST. PETER PORT |
| BARCGGS1 | BARCLAYS BANK PLC | ST. PETER PORT |
| BARCGGS10S2 | BARCLAYS BANK PLC | ST. PETER PORT |
| BARCGGS10WG | BARCLAYS BANK PLC | ST. PETER PORT |
| BARCGGS1XXX | BARCLAYS PRIVATE CLIENTS INTERNATIO | St. Peter Port |
| BBCOGGSP | NORTHERN TRUST (GUERNSEY) LTD. | ST. PETER PORT GUERNSEY |
| BBCOGGSPXXX | Northern Trust Guernsey Ltd | St. Peter Port |
| BCVLGGSP | BANQUE CANTONALE VAUDOISE | ST. PETER PORT |
| BCYPGGS1 | BANK OF CYPRUS (CHANNEL ISLANDS) LIMITED | ST. PETER PORT |
| BGUEGGS1 | BARCLAYS FINANCE CO (GUERNSEY) LTD | ST. PETER PORT |
| BLICGGBX | HSBC REPUBLIC BANK (SUISSE) SA | ST. PETER PORT GUERNSEY |
| BLICGGSX | HSBC PRIVATE BANK (GUERNSEY) LTD | U.K. GY1 1EE |
| BNTBGGSX | BUTTERFIELD BANK (GUERNSEY) LIMITED | ST. PETER PORT |
| BNTBGGSXXXX | BANK OF BUTTERFIELD INTERNATIONAL ( | St. Peter Port |
| BPBLGGS1 | BARCLAYS PRIVATE BANK AND TRUST LTD | ST. PETER PORT |
| BPPBGGSX | BNP PARIBAS (SUISSE) SA | ST. PETER PORT |
| BSYSGGS1 | BISYS INVESTMENT SERVICES | ST. PETER PORT |
| CECIGGS1 | CENKOS CHANNEL ISLANDS LIMITED | ST. PETER PORT |
| CHSOGGS1 | CHANDLER SECURITIES (EUROPE) LIMITED | ST. PETER PORT |
| CLARGGSPXXX | CLARIDEN BANK (GUERNSEY) LIMITED | Guernsey |
| CLSAGGS1 | CLSA GUERNSEY LTD | ST. PETER PORT |
| CLYDGGSPXXX | CLYDESDALE BANK PLC | GUERNSEY |