Investment is an essential factor enabling economic development and achieving competitiveness. In recent years in the EU agriculture the investment rate has been low. The research on farmers’ investment behaviour shows that there are numerous factors determining farmers’ investment decisions. Among them often enumerated are credit constraints and lack of financial resources. As among the aims of the EU CAP there is support for increasing the productivity of the EU agriculture there are instruments to support agricultural investment. However, its impact on agriculture is limited given the low scale of financial resources. At the beneficiary level the scale of productivity increase is difficult to assess and the small number of studies on this issue shows that it is small.