Financial advisers should be prosecuted by the next government for aiding tax avoidance schemes, a new UK parliamentary report has claimed.The parliamentary Public Accounts Committee analysed public spending, use of tax relief as well as advice given by the big four accountancy firms, and scrutinised HSBC's Swiss operation accused of helping clients with tax avoidance before reaching its conclusions, wrote The Guardian.Its findings have resulted in a cross-party selection of MPs requesting new legislation that would prosecute any advisers who are proven to have supported or encouraged tax avoidance.Also recommended is a review of all tax breaks in an effort to streamline the system and prevent future scandals.Committee chair Margaret Hodge said: "Some of these firms, for example PwC, from whom we took evidence, appear to be selling these schemes on an industrial scale."We remain concerned that HMRC's relationship with these large accountancy firms is too cosy, and it needs to get much tougher in challenging the advice they give to their clients."We have also argued for new offences to penalise those involved in advising or helping companies and individuals avoid or evade tax."She added that her committee was concerned at the lack of prosecution that has occurred since news of the HSBC Swiss scandal came about."Only one case has been prosecuted since HMRC received the data in 2010, and we are not aware of whether any action has been taken against the bank," Hodge added.