Meet The Law | Tax
Decree-Law no. 6/2013 of 17 January - the Large Taxpayers Unit
The Customs and Tax Authority (AT), whose mission, tasks and organization are regulated by Decree-Law no. 118/2011 of 15 December and by Ordinance no. 320-A/2011 º, 30 December is structured in several nuclear units, among which is the Large Taxpayer Unit (CGU).
Please check the PDF for more detailed information (Portuguese version only).