Canada Social Insurance Number Input

CanadaSocialInsuranceNumberInput is a headless input for entering Canada's Social Insurance Number (SIN), Canada's government-issued personal identifier. It renders as <input type="text"> with autocomplete="off" to protect sensitive identifiers. It is the editable companion to CanadaSocialInsuranceNumberView.

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: Nine digits, usually displayed in three groups of three (NNN NNN NNN). The leading digit denotes the region of registration (1 Atlantic, 2-3 Quebec, 4-5 Ontario, 6 Prairies, 7 Pacific, 9 temporary residents), the following seven digits are a serial number, and the final digit is a Luhn (Modulus-10) check digit over the first eight.
• autocomplete="off" to protect sensitive identifiers
• Supports two-way binding on the value prop
• Companion to CanadaSocialInsuranceNumberView

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="Social Insurance Number (SIN)" required>
  <CanadaSocialInsuranceNumberInput label="Social Insurance Number (SIN)" value={value} required />
  <Hint>Nine digits, usually displayed in three groups of three (NNN NNN NNN). The leading digit denotes the region of registration (1 Atlantic, 2-3 Quebec, 4-5 Ontario, 6 Prairies, 7 Pacific, 9 temporary residents), the following seven digits are a serial number, and the final digit is a Luhn (Modulus-10) check digit over the first eight.</Hint>
  <ErrorMessage>Please enter a valid Social Insurance Number</ErrorMessage>
</Field>

ARIA

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

When to Use

• Use in forms collecting Canada's Social Insurance Number (SIN).
• 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 canada-social-insurance-number-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 .canada-social-insurance-number-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

Nine digits, usually displayed in three groups of three (NNN NNN NNN). The leading digit denotes the region of registration (1 Atlantic, 2-3 Quebec, 4-5 Ontario, 6 Prairies, 7 Pacific, 9 temporary residents), the following seven digits are a serial number, and the final digit is a Luhn (Modulus-10) check digit over the first eight.

Where to find it: Printed on the paper SIN confirmation letter issued by Service Canada; required for federal benefits, tax filing, and employment records.

Related components

• canada-social-insurance-number-view — a read-only display of Canada's Social Insurance Number (SIN)
• text-input — a single-line text input field <input type="text">

References

• Wikipedia: Social Insurance Number

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