Just what is David Cameron hiding from you and me? He’s refusing to say whether his family still has money invested in secret funds set up by his father, claiming it “is a private matter”. But Cameron says he wants to end tax secrecy and crack down on corporations using offshore schemes to dodge taxes. And just next month, he is hosting a major summit on the issue. If he won’t open up about his own offshore corporate tax affairs, how can we trust him to do what’s necessary? Tell David Cameron to fully disclose his tax affairs --  including the tax setup of any companies he or his family own or part-own. Ian Cameron ran an offshore fund that avoided paying a penny of tax in Britain for 30 years. That fund helped him amass a legacy of £2.74 million, some of which was left to David Cameron. Now questions have been raised over whether Ian Cameron’s company was really controlled in the UK during the time it failed to pay taxes here -- which would be in breach of UK laws -- and whether the Cameron family’s money is still in those funds. Just four years ago, David Cameron said it was “not morally acceptable” to use offshore schemes to dodge taxes. But, when the spotlight is turned on his own family, he says it is a “private matter”. That just isn’t good enough from a prime minister who has put people through six years of austerity, while allowing corporations to keep using tax havens to avoid paying their fair share. Tell David Cameron to reveal his tax details today. David Cameron is already under huge amounts of pressure and has been forced to issue denials and half-baked rebuttals. Downing St now say that “here are no offshore funds or trusts which the prime minister, Mrs Cameron or their children will benefit from in future.”. But did he benefit from tax avoiding offshore accounts in the past? It’s time Cameron comes clean and publishes all his financial affairs. By standing together to put even more pressure on Cameron, we could make it politically impossible for him not to fully disclose his family’s tax affairs. The SumOfUs community has been at the forefront of fighting tax dodging. Tens of thousands of UK SumOfUs members have stood up to HSBC, and chipped in to pursue a groundbreaking legal case against the bank for helping Britain’s richest evade tax. And for that, we made front page news.   Now, let’s find out whether our own prime minister’s corporate tax affairs are dodgy -- we have the right to know. David Cameron: come clean and fully disclose your tax affairs.