# stdnum.it.iva

Partita IVA (Italian VAT number).

The Partita IVA (Imposta sul valore aggiunto) consists of 11 digits. The first 7 digits are a company identifier, the next 3 refer to the province of residence and the last is a check digit.

The fiscal code for individuals is not accepted as valid code for intracommunity VAT related operations so it is ignored here.

    >>> validate('IT 00743110157')
    '00743110157'
    >>> validate('00743110158')  # invalid check digit
    Traceback (most recent call last):
        ...
    InvalidChecksum: ...

stdnum.it.iva.compact(number: str) → str

  Convert the number to the minimal representation. This strips the number of any valid separators and removes surrounding whitespace.

stdnum.it.iva.is_valid(number: str) → bool

  Check if the number is a valid VAT number.

stdnum.it.iva.validate(number: str) → str

  Check if the number is a valid VAT number. This checks the length, formatting and check digit.