Consumer behavior theory describes how consumers distribute their income among different goods in order to maximize their usefulness. There are three theories within the theory of consumer behavior, namely the theory of marginal utility, the theory of indifference, and the theory of revealed preference. Individual demand is considered to be the quantity of goods that the buyer wants to acquire at a certain price and at a certain time. Demand may change depending on changes in the price of a particular good or under the influence of some other variable. The main goal of this paper is to investigate the change in consumer behavior and show how individual demand has changed under the influence of the COVID-19 virus pandemic. The appearance of the virus has changed the functioning of the whole world and has introduced numerous changes in everyday life. In addition to affecting the social life of the individual, it brings great changes to the economy of each state. The impact of the COVID-19 virus is most visible on the socio-economic indicators presented in the paper. A study conducted on a sample of 146 respondents showed changes that occurred in consumer behavior. Which consumer attitudes have changed and which have not were shown through the results of the survey questionnaire. The changes that have taken place relate to the choice of products, the method of purchase and the method of payment.