vatnumber is a Python module to validate VAT numbers. It can validate VAT formats for 35 countries and can use the European VIES [1] service. http://pypi.python.org/pypi/vatnumber/0.8 The changelog for this release: * Add GB validation for the "9755" checksum introduced in November 2009 [1] http://ec.europa.eu/taxation_customs/vies/vieshome.do