A "vigorous approach" to combating tax avoidance was promised by the Finance ­Secretary as he published a Bill to establish a new collection authority.

John Swinney said the ­Revenue Scotland and Tax Powers Bill sets out the legal framework for collecting two new devolved taxes and an "anti-avoidance rule".

He said: "This Government will take a distinctly Scottish approach to taxation, including a vigorous approach to combating tax avoidance.

"We firmly believe that ­decisions about Scotland's taxes should be taken by the people of Scotland."