Revenue expense are costs in the for day to day running of the business for example servicing a machine, spare parts etc. Revenue expenditure is normally charged against profit in the Income statement in the year it is expensed.
Capital expenditure is on an item that will help generate profits over the longer term (12 months or more) so a purchase of a machine or van etc. The item is depreciated over the items useful life and each depreciateable amount is charged to the Income statement in the year the item has help generate profit.
