https://www.theregister.co.uk/2019/09/17/apple_eu_tax_appeal/

Apple has appealed against the European Union's 2016 decision to impose a €13bn tax bill on the iPhone maker's Irish subsidiary.

The case is part of a wider EU crackdown on multinationals' tax arrangements but hinges on issues of competition law and state aid. The EU demands that Apple pays the missing billions to the Irish government – though the Irish government is also trying to overturn the ruling.