iNetTaxGross performs a simple but very useful task: it helps work out what is the net, tax charged and gross from any given amount of any of them. Given one of them it works out the other two. iNetTaxGross is a cocoa application, written in objective C and it starts in a flash. The interface is very simple but powerful and user friendly. iNetTaxGross window by default is small and unobtrusive but you can zoom it to any size up to full screen. iNetTaxGross hardly uses any memory and processor time.