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The Silicon Six and their $100 billion global tax gap, was a report published in December 2019 by the Fair Tax Mark which examined the tax conduct of Facebook, Apple, Amazon, Netflix, Google and Microsoft over the last decade, 2010-2019.
It concluded that the corporation tax paid by the Silicon Six was much lower than is commonly understood. Over the decade:
* the gap between the expected headline rates of tax and the cash taxes actually paid was $155.3bn
* the gap between the current tax provisions (the amount the companies were expected to pay) and the taxes actually paid was $100.2bn
The report suggests that the bulk of the shortfall almost certainly arose outside the United States. Profits continue to be shifted to tax havens, especially Bermuda, Ireland, Luxembourg and the Netherlands.

Out of the six companies, Amazon was found to be the worst culprit.
Amazon has paid just $3.4bn in income taxes this decade, whilst Apple has paid $93.8bn and Microsoft has paid $46.9bn. This was a staggering variance, especially as Amazon’s revenue over this period exceeded that of Microsoft’s by almost $80bn.
Fair Tax Mark said this means Amazon’s effective tax rate was just 12.7% over the decade when the headline tax rate in the US has been 35% for seven of the eight years under examination.
The company is growing its market domination across the globe on the back of revenues that are largely untaxed, and can unfairly undercut local businesses that take a more responsible approach.
The situation is unlikely to reverse soon given the $9.3bn of operating loss carry forwards available to offset against future profits and taxes.
The company lost half a mark under Tax Conduct.


The Silicon Six and their $100 billion global tax gap (December 2019)