Through its Large Cases Division, the Revenue Commissioners has long assessed the tax tactics and strategies employed by the country’s richest citizens, dedicating significant resources to monitoring schemes, offshore assets, and trusts. Most of its efforts go on unpicking particular schemes that have been devised to assist wealthy individuals and corporations to reduce their tax bill. Once a scheme has been identified, tax officials then delve into the detail, challenging all those who have availed of it. But just what type of schemes are being targeted, how many individuals have used them, and what level of cases are being challenged?…