Incomes and expenses show us how successful a company actually is through a specific time period, most commonly we are talking about period of one year. Income can appear by increasing assets or by reducing liabilities which means an increase of equity. We can split them into ordinary incomes and extraordinary incomes. Ordinary incomes can further be split into incomes from operations and financial incomes. Problem and goal of this research is to determine specifics of tracking incomes in accounting and how important incomes are for running a business. The results of a research show that Konzum d.d. had a 1.6% increase in real gross domestic product (GDP) in 2015 when compared to the one in 2014. That is the first real annual growth in the past 7 years. Konzum achieved income in total of 12.947 mil HRK from selling goods, which is a growth of 6.7% in 2015 when compared to 2014. The growth was visible in all forms of business: retail, wholesale and trade in petroleum products.