Singapore National Registration Identity Card Input

SingaporeNationalRegistrationIdentityCardInput is a headless input for entering Singapore's National Registration Identity Card Number / Foreign Identification Number (NRIC/FIN), Singapore's government-issued personal identifier. It renders as <input type="text"> with autocomplete="off" to protect sensitive identifiers. It is the editable companion to SingaporeNationalRegistrationIdentityCardView.

Status: beta — implemented and unit-tested in all seven frameworks; not yet exercised in a composed flow.

Implementation Notes

• Renders as <input type="text">
• Format: One letter (S or T for citizens/permanent residents; F or G for long-term foreign residents; M for newer FIN series), seven digits, and a trailing check letter. The check letter is computed by multiplying the seven digits by fixed weights (2,7,6,5,4,3,2), summing the products (adding 4 for a G/T prefix or 3 for an M prefix), taking the sum Modulus 11, and mapping (10 - remainder) through a lookup table to a letter.
• autocomplete="off" to protect sensitive identifiers
• Supports two-way binding on the value prop
• Companion to SingaporeNationalRegistrationIdentityCardView

Props

• label: string (required) — accessible label via aria-label
• value: string (default: "") — bindable input value
• required: boolean (default: false) — form validation
• disabled: boolean (default: false) — disabled state
• ...restProps: any — additional HTML attributes spread onto the <input>

Usage

<Field label="National Registration Identity Card Number / Foreign Identification Number (NRIC/FIN)" required>
  <SingaporeNationalRegistrationIdentityCardInput label="National Registration Identity Card Number / Foreign Identification Number (NRIC/FIN)" value={value} required />
  <Hint>One letter (S or T for citizens/permanent residents; F or G for long-term foreign residents; M for newer FIN series), seven digits, and a trailing check letter. The check letter is computed by multiplying the seven digits by fixed weights (2,7,6,5,4,3,2), summing the products (adding 4 for a G/T prefix or 3 for an M prefix), taking the sum Modulus 11, and mapping (10 - remainder) through a lookup table to a letter.</Hint>
  <ErrorMessage>Please enter a valid National Registration Identity Card Number / Foreign Identification Number</ErrorMessage>
</Field>

ARIA

• aria-label={label} — provides accessible name

When to Use

• Use in forms collecting Singapore's National Registration Identity Card Number / Foreign Identification Number (NRIC/FIN).
• Use in administrative or national-id workflows where the identifier is required.

When Not to Use

• Do not use for displaying read-only identifiers — use singapore-national-registration-identity-card-view instead.
• Do not use for general text input — use text-input instead.
• Do not use for other countries' identifiers — use the corresponding country-specific input.

Headless

This headless component ships zero CSS. The consumer provides all styling targeting the .singapore-national-registration-identity-card-input class hook.

Testing

• Verify renders an <input> with the correct class and type="text"
• Verify aria-label is set from the label prop
• Verify autocomplete="off"
• Verify value binding works

Domain Knowledge

One letter (S or T for citizens/permanent residents; F or G for long-term foreign residents; M for newer FIN series), seven digits, and a trailing check letter. The check letter is computed by multiplying the seven digits by fixed weights (2,7,6,5,4,3,2), summing the products (adding 4 for a G/T prefix or 3 for an M prefix), taking the sum Modulus 11, and mapping (10 - remainder) through a lookup table to a letter.

Where to find it: Printed on the pink (citizen), blue (permanent resident), or FIN-series NRIC/employment/work-pass card, and required to enrol in Singapore's MediSave/MediShield Life national health schemes.

Related components

• singapore-national-registration-identity-card-view — a read-only display of Singapore's National Registration Identity Card Number / Foreign Identification Number (NRIC/FIN)
• text-input — a single-line text input field <input type="text">

References

• Wikipedia: National Registration Identity Card

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