New technologies are changing the way that tax administrations, taxpayers and their advisers interact, leading to a reduction in the compliance cost for taxpayers, a level playing field for large and small businesses, and fewer opportunities to engage in aggressive tax practices. Although entering a new world where processes are supported by machines inevitably disrupts traditional ways of working, the contributors to this indispensable book reveal the enormous potential of ‘tax technology’ to positively transform tax compliance, clearly showing both government and business how to manage the transition from the old to the new.