Tougher tax legislation could bring in billions of extra revenue to fight poverty, says charities and church organisations across Britain.

Despite advocating transparency and tighter tax rules, key G20 economies are actively and aggressively promoting financial secrecy, says a new report.

One of Britain's most well-known Christian accountants has described the UK as a tax haven for the rich in which the poor are now paying more in tax.

Policy makers are failing to live up to the pledges of the world’s most powerful nations to tackle tax haven secrecy, according to a major new index.