Guernsey
TIN validation guidance for Guernsey
Access country-specific reference information, recognised formats and validation resources designed for compliance teams, finance departments and enterprise operations.
TIN Check Guernsey
Individuals:
The first TIN equivalent number is the Social
security number issued by the Guernsey Social
Security Department.
The 2nd TIN equivalent number is the UK
National Insurance Number (NINO).
The 3rd Tin equivalent number is the Jersey Social Security Number.
Some pre 1979 existing UK/Jersey Insurance
Numbers remain and are potentially valid TIN
for Guernsey purposes.
Format:
The Social security number consists of 6 digits prefixed with GY (format: GY999999).
The NINO consists of 9 characters (format:
LL999999L).
The Jersey Social Security Number consists 6
digits prefixed with JY and a final letter
(format: JY999999L).
Entities:
The TIN for entities is called “Guernsey Company Registration number”.
The TIN for foundations is the “Foundation
Registration number”.
The TIN for charities and non profit organizations are respectively “Charity and Non
Profit Organisation registration numbers”
Format:
Guernsey Company Registration number
consists of 1 to 6 digits.
Foundation Registration number consists of 1 to
3 digits.
Charity Registration number consists of 1 to 3
digits prefixed with CH (format: CH9, CH99, CH999).
Non Profit Organisation number consists of 1 to
3 digits prefixed with NP (format: NP9, NP99, NP999).
Official example structures
Use the following examples as guidance for commonly recognised tax identification formats.
