The Internet is world computer network that enables access to pieces of information and documents from distant sources. It is a combination of world communication system and the largest market in the world. Basic goal of internet sales is to enable more effective ways of approaching the buyer with reduced costs. Buyer is, at the same time, given the opportunity to compare prices between different offers of the same goods or services – competing prices. With classic retail trade it is not possible to achieve without significant loss in time spent on visiting competing stores looking for the same goods or services. This type of retail trade can increase the number of buyers in other words income, and it diminishes the costs of printing, inventory storing, salaries, etc. Internet retail trade is more and more present, but this form of trade needs cost analysis and planning in order for it to turn profit.