Despite reporting £20.4m in UK sales, media research group Enders, external has estimated Facebook UK brought in £175m in revenues in 2011.
However, some tax experts say the company's figures need to be put in perspective and stress that Facebook isn't doing anything illegal.
Mike Warburton, director at tax experts Grant Thornton, said: "It [Facebook UK] operates legitimately as a service provider to the group."
Mr Warburton also called the £238,000 figure "rather meaningless".
"It just relates to corporation tax on sundry items like investment income," he said.
"Facebook UK made a loss on trading which would have no tax liability, and perhaps some losses to carry over to next year.
"In addition, there was about £15m charge on the employee share options, again fully allowable for corporation tax purposes."