Amazon tax opinion boosts Apple's legal battle over taxes paid in Ireland

The appeal court will issue a non-binding opinion in the Apple case in November.

Apple's ongoing court battle with the EU over taxes paid in Ireland has received a significant boost. 

An adviser to Europe's top court said today that another tech giant, Amazon, should not pay €250m in back taxes to Luxembourg as ordered by EU competition enforcers, as she cited errors in the EU regulatory assessment.