stdnum.nl.btw¶
BTW-nummer (Omzetbelastingnummer, the Dutch VAT number).
The BTW-nummer is the Dutch number for VAT. It consists of a RSIN or BSN followed by a B and two digits that identify the unit within the organisation (usually 01).
>>> validate('004495445B01')
'004495445B01'
>>> validate('NL4495445B01')
'004495445B01'
>>> validate('123456789B90')
Traceback (most recent call last):
...
InvalidChecksum: ...
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stdnum.nl.btw.
compact
(number)¶ Convert the number to the minimal representation. This strips the number of any valid separators and removes surrounding whitespace.
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stdnum.nl.btw.
is_valid
(number)¶ Check if the number is a valid BTW number.
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stdnum.nl.btw.
validate
(number)¶ Check if the number is a valid BTW number. This checks the length, formatting and check digit.