In the last two years HM Revenue and Customs (HMRC) have seen a growth in arrangements which are variously described as ‘Travel and Subsistence Schemes’ or ‘Mobile Worker Schemes’. These schemes are operated by many businesses involved in the supply of temporary workers to end users: Employment Businesses and umbrella companies.

Taxpayers have good reason to fear investigation by HM Revenue & Customs. Now Daniel Dover, a partner at accountants BDO Stoy Hayward LLP, and financial writer Tim Hindle have written a book – ‘The Taxman Always Rings Twice’ – explaining the process, showing what is at stake and how to get through it. Here are their 10 golden rules: