Can someone point me in the right direction please. I do bookkeeping for a small accountancy firm but feel it's a bit out of debth for me, so wanted to know how others deal with similar tasks. A client asked to give them their monthly profit figures. They are a haulage company and on accrual basis. The easy part is all invoices are dated when the work is carried out, the harder bit is to match expenses to months they actually relate. I am aware of accruals and prepayments concept from my AAT studies, but they have a HUGE amount of purchase invoices and I just don't know how it is done in real life. Receipts for petrol are fine as they are dated when used, but fuelcards invoices are all over the place, some invoices are issued weeks later, the same goes to some drivers invoices etc. Now for the purpose of figuring out what profit the company made, do others accrue and prepay every single invoice to get correct figures? It just seems suge a huge time consuming task.