I own website hosting and design company and usually create my own accounts for Companies House and also need to make a return to HMRC Coroporation Tax annually. Recently there has been a move to present company accounts in the iXBRL format (inline business reporting language). This either requires using a firm of accountants or buying in to a service that will convert accounts to the iXBRL format. Many small companies have been able to make their own returns, they now face a problem. The going rate to create iXBRL compatible accounts is currently about 90 GBP. If I have to pay this I might as well close down my business. However, why can't I add the appropriate iXBRL tags myself my accounts are very simple and the iXBRL format is a type of HTML file. In short my accounts need to be tagged and the file needs to be saved as an iXBRL file. I am happy to work in source code and it would seem that I could learn how to add the appropriate iXBRL tags to an HTML copy of a Word or Excel file. The trouble is I can't find much about how to do this. I don't even know which forum this post should go on, programming?