pyVat is a complete library that validates vat number formats in EU member countries. The algorithms used are described in /doc/VIES-VAT Validation Routines-v15.0.doc
Python >= 2.6
$ pip install vat-format-checker
from pyVat.api import Validator
validator = Validator('ATU10223006')
if validator.validate() is True:
print ("The VAT number has a valid format")
else:
print ("Invalid VAT number format for country %s" % validator.country_code)
- The Croatian format is missing the algorithm. The validations is done purely based on regular expressions.