Since April 2011 it has been mandatory for UK companies to convert all Corporation Tax accounts data into the iXBRL (Inline iXBRL) format prior to filing with HMRC. This Case Study explains why Mazars LLP, chose IRIS OpeniXBRL, powered by Corefiling.


Mazars is an international, integrated and independent organisation specialising in audit, advisory, accounting and tax services. As at 1st January 2012, the Group has a presence in 68 countries and draws on the expertise of 13,000 professionals to assist businesses, major international groups, SMEs, entrepreneurs and public bodies at every stage in their development. Mazars also has correspondents and local representative offices in 14 further countries, which gives it additional capability to serve clients to the same strict quality standards across five continents. By listening closely to clients and understanding their needs, the Mazars range of services is designed to provide the assurance of recognised technical and regulatory expertise together with the added-value of a business partner that can advise effectively on improving performance at all levels.