Per Apple the move to Ireland hasn't squashed their American taxes.....
The facts about Apple’s tax payments
Under the current international tax system, profits are taxed based on where the value is created. The taxes Apple pays to countries around the world are based on that principle. The vast majority of the value in our products is indisputably created in the United States — where we do our design, development, engineering work and much more — so the majority of our taxes are owed to the US.
Under the current tax system, post-tax earnings from foreign sales are subject to US tax. Apple has earmarked more than $36 billion to cover US deferred taxes. This is in addition to the $35 billion the company paid in corporate income taxes over the past three years.
Under the current tax system, post-tax earnings from foreign sales are subject to US tax. Apple has earmarked more than $36 billion to cover US deferred taxes. This is in addition to the $35 billion the company paid in corporate income taxes over the past three years.
The facts about Apple’s tax payments