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Validate Singapore TIN (NRIC / FIN / UEN)

Free online National Registration Identity Card / Unique Entity Number validator. Instant validation using OECD-compliant rules for Singapore tax identification numbers.

Validation Workspace

Validate NRIC / FIN / UEN

Enterprise checks for Singapore tax identification numbers.

Instant one-by-one format validation

Country

Singapore

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NRIC / FIN / UEN format check

Enter a NRIC / FIN / UEN to validate for Singapore

Awaiting input

Paste values with or without separators. Validation also checks a normalized value.

Use a real NRIC / FIN / UEN sample to verify format compliance before filing.

About Singapore TIN (NRIC / FIN / UEN)

The National Registration Identity Card / Unique Entity Number is the official tax identification number used in Singapore. Format: NRIC/FIN: letter + 7 digits + letter, UEN: varies by entity type

Valid Examples

  • S1234567D
  • T1234567A
  • 201234567K

Invalid Examples

  • S1234567X (Invalid check letter)
  • S123456 (Too short)

Common Use Cases

  • Tax filing
  • Employment
  • Banking
  • Government services

Official source: Inland Revenue Authority of Singapore

Frequently Asked Questions

What's the difference between NRIC, FIN, and UEN?
NRIC is for Singapore citizens and permanent residents. FIN is for foreigners. UEN (Unique Entity Number) is for businesses and organizations.
How is the NRIC check letter calculated?
The check letter is calculated using a weight-based algorithm on the 7 digits. Different weights apply for NRIC (S/T prefix) vs FIN (F/G prefix).

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