This paper under the topic of cost-effectiveness analysis of investment projects from the aspect of dynamic methods shows what a business idea needs to go through in order to ultimately be implemented in case of positive results in cost-effectiveness analysis. In today's fast-growing and changing economy, relying only on traditional, static methods is becoming increasingly problematic due to not taking into account essential items through the lifespan of the project. The limiting nature of these methods often cannot provide a complete picture of the costeffectiveness of potential investments. Capital budgeting is a complex process that needs as precise data as possible and dynamic methods, such as the net present value (NPV) method, internal rate of return (IRR), relatively pure (net) present value (RNSV) and profitability index (IP), allow taking into account the time value of money and fluctuations throughout the life cycle of projects, providing a deeper insight into the profitability of the investment. With all the necessary collected data and created additional future cash flows, the goal is to analyze projects of various sizes and understand their cost-effectiveness over a period of time with the application of dynamic methods. The results obtained should be carefully considered and of course make the right decision to invest in the project that will maximize profits, increase competitiveness in the market and increase the well-being of the owners.