Google boss Eric Schmidt said he was "perplexed" by the debate over the company's tax affairs.
The internet giant's executive chairman insisted it was up to the Government to change the law if it wanted more money from the firm after reports Google paid only £10 million in corporation tax in the UK between 2006 and 2011, despite revenues of £11.9 billion.
Mr Schmidt told BBC Radio 4's Start the Week: "What we are doing is legal. I'm rather perplexed by this debate, which has been going in the UK for quite some time because I view taxes as not optional.
"I view that you should pay the taxes that are legally required. It's not a debate. You pay the taxes.
"If the British system changes the tax laws then we will comply. If the taxes go up we will pay more, if they go down we will pay less. That is a political decision for the democracy that is the United Kingdom."
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