This article is devoted to the elaboration of a methodology for assessing intellectual rent at different levels of management. The author's methodology is adapted to the level of individual products and the level of an industrial enterprise. The analysis of scientific knowledge on the creation of rental income from the use of intellectual resources allowed us to substantiate a generalized approach to assessing intellectual rent, which is based on the intellectual component of income. To obtain the intellectual component of income, it is proposed to generalize them through comparative analysis. Since the formation of intellectual rent is a determinant of sustainable development, the proposed methodology can be adapted to models of maximizing rental efficiency from competent management of intellectual capital.