Skip to main content

Singapore NRIC / FIN Validator

Validate the authenticity, format, and checksum of Singapore NRIC / FIN.

About Singapore NRIC / FIN Validation

The NRIC (National Registration Identity Card) and FIN (Foreign Identification Number) are the unique 9-character identifiers for Singapore citizens and foreign pass holders.

Structured as 9 characters: leading letter (S=pre-2000 citizens, T=post-2000, F/G/M=foreigners), 7 digits, and a checksum letter calculated via weighted sum [2, 7, 6, 5, 4, 3, 2] Modulo 11.

Frequently Asked Questions & Technical Guidelines