If I purchased some tools/equipment over the past few years and decide I no longer need them and sell them on Ebay, do I need to put in the full amount of sale price through my books as an income? When originally purchased new they were declared as an expense. Is it as simple as that or is there some rule that after a certain period they no longer need to be declared if they are sold? They sold for between £200 and £800 per piece.