The article considers the approach to the formation of the proactive system for stimulating innovative activities of enterprises. The research approach specificity is that the proactive activity is considered as a property of the system, depending on the proactive behavior of its participants, and a proactive approach to stimulation is considered as the process of creating sources of motivation for enterprises to change the conditions of their functioning. The advantages of proactive development are highlighted. Forms and methods of proactive system implementing are proposed, of its formation’s stages are identified, and of its main elements’ characteristics are given. A low degree of enterprises’ involvement in the innovation process and existing programs’ inefficiency for stimulating innovation activities were identified. The approach to the universalization of the process of proactive system forming for stimulating innovation activity is proposed, which is based on the gradual introduction of forms and methods of enterprises’ proactive behavior. The key role of the digital platform in the formation of the proactive incentive system is disclosed. The effect of duality as the result of the proactive system formation process is shown: first, the rapid growth of innovative activity indicators, and then the long-term formation of the system’s new status. It has been proven that it is the digital environment and a high degree of digital inclusion that will ensure cross-functional participants’ interaction and increase the national economy competitiveness.