Over the past three months, The Currency has published a series of articles on efforts by the Irish tax authority to curb the use of holding companies by self-employed contractors to reduce their bill. The focus of the Revenue’s efforts is to ensure that full time workers do not use intermediary structures to disguise their true employment status – and therefore their tax liability. In September, we revealed how the Irish tax authority had forced settlements from 600 contract workers at pharma and IT giants for overstating their travel and business expenses. Drawing from documents obtained under FOI, new data…