This article is the result of a critical evaluation made to Colciencias’ public calls process to access tax discounts, granted to individuals or companies investing in science, technology and innovation (STI) projects. The response to these public calls has been low due to reasons such as unawareness of the incentive or the complexity of the process, among others. Consequently, the objective of this paper is to present a consultancy proposal, a specialized service offer which supports and accompanies STI calls by strengthening knowledge and skills in the applicants. The consulting proposal was carried out through an exploratory and descriptive methodology, which allowed the recognition of activities, requirements and mechanisms to be taken into account by the applicants. Then, some diagrams were proposed to encompass the procedures and, finally, the procedure’s impact on the profitability of a hypothetical company is presented