Starbucks, Google and Amazon to face UK lawmakers over tax evasion

"We are committed to being transparent on this issue and look forward to appearing before this committee," a spokeswoman said.

Starbucks Chief Financial Officer Troy Alstead will give evidence to the committee, as will Matt Brittin, Chief Executive Officer of Google UK, and Andrew Cecil, Brussels-based Director of Public Policy for Amazon, a PAC spokesman said.

Google's filings show it had $4 billion of sales in the UK last year, but despite having a group-wide profit margin of 33 percent, its main UK unit had a tax charge of just 3.4 million pounds in 2011.

The company avoids UK tax by channeling non-US sales via an Irish unit, an arrangement that allowed it to pay taxes at a rate of 3.2 percent on non-U.S. profits. Amazon's main UK unit paid less than 1 million pounds in income tax last year. The company had UK sales worth $5.3-7.2 billion, filings show.

Amazon avoids UK taxes by reporting European sales through a Luxembourg-based unit. This structure allowed it to pay a tax rate of 11 percent on foreign profits last year - less than half the average corporate income tax rate in its major markets.

Google declined to comment. Amazon did not respond to requests for comment.