DTR : TIOPA 2010 Section 42 | AccountingWEB

DTR : TIOPA 2010 Section 42

Is any anyone an expert on dealing with HMRC enquires relating to the application of TIOPA Section 42 in particular the mini profit and loss account and allocation of overheads. I have used time basis to allocate overheads apart from a large pension contribution HMRC wants me to use gross profit as basis for allocation