By Diane Bartz
WASHINGTON (Reuters) - The U.S. government has sought to intervene in Apple's <AAPL.O> appeal against an EU order to pay back up to 13 billion euros ($14.8 billion) in Irish taxes, a source familiar with the matter said on Tuesday.
iPhone maker Apple took its case to the Luxembourg-based General Court, Europe's second-highest, in December after the European Commission issued the record tax demand saying the U.S. company won sweetheart tax deals from the Irish government which amounted to illegal subsidies.
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The decision was criticized by the Obama administration which said the European Union was helping itself to cash that should have ended up in the United States.
The Trump administration, which has tentatively proposed a tax break on $2.6 trillion in corporate profits being held offshore as part of its tax reform, has not said anything in public about the case.
"I can confirm the United States filed an application with the European Union General Court to intervene in the case involving the retroactive application of state aid rules to Apple," said the source, who declined to be named because of the sensitivity of the matter.
The General Court is expected to hear the case in late 2018, another source with knowledge of the matter said.
Apple has said it was a convenient target for the EU and that the EU competition enforcer used an "absurd theory" to come up with a punitive figure.
Amazon <AMZN.O> and McDonald's <MCD.N> are also in the EU crosshairs over their tax deals with Luxembourg.
Ireland, the Netherlands, Luxembourg, Starbucks <SBUX.O>, Fiat Chrysler Automobiles <FCHA.MI> and several other companies that were also ordered to pay back taxes to other EU countries have similarly challenged their EU rulings.
(Writing by Foo Yun Chee; Editing by Susan Fenton and David Evans)