Tax and identity numbers

Tax numbers, company numbers and identity documents.

Topics

Cards and identity documents are numbers a person holds: a card's brand and last four digits, its expiry, a VAT number or tax id, a passport or a driving licence.

Groups with the baseline only

Many standard types are a value with a check and nothing more: an IBAN, a card number, a barcode, an NHS number.

Types

Type	What it is
`VatNumber`	A VAT registration number, with its country's code at the front: `GB980780684`.
`TaxId`	A taxpayer's identification number, with the country that issued it.
`UkUtr`	A UK Unique Taxpayer Reference: ten digits.
`UkCompanyNumber`	A UK company's number at Companies House: `00445790` or `SC123456`.
`UkNationalInsuranceNumber`	A UK National Insurance number: `AB123456C`.
`UsSsn`	A US Social Security number: nine digits.
`UsEin`	A US Employer Identification Number, for a business: nine digits.
`PassportNumber`	A passport's number, with the country that issued it.
`DrivingLicenceNumber`	A driving licence's number, with the country that issued it.
`IdentityDocument`	An identity document: its kind, the country, its number and when it expires.
`IdentityDocumentKind`	What kind of identity document one is: `passport`, `identity_card`, `driving_licence` or `residence_permit`.
`NhsNumber`	An NHS number, the patient identifier in England, Wales and the Isle of Man: ten digits.

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