A dispensation is a notice from HM Revenue and Customs that means you don′t have to complete and submit lots of paperwork about your expenses (for example, forms P11D or P9D – sound familiar?).
Basically, HM Revenue and Customs agrees "round sum" rates for genuine business expenses like travel and subsistence. Tarpon′s dispensation avoids the need to spend time collating loads of receipts or form-filling.