According to the contemporary theory of income inequality, the impact of this phenomenon on other economic categories is determined by the way it is perceived and accepted. Therefore, it is worth deepening knowledge on income disparity by identifying the factors that most influence acceptance for the latter. The main purpose of the article is to identify the factors affecting acceptance for income inequality in Poland. The basis for estimations conducted to verify the research hypotheses was a set of microdata from a survey conducted in Poland in 2019. Models were estimated using the Generalized Structural Equation Modelling approach. Our study revealed the endogeneity issues resulting from inclusion attitudes towards redistribution in the model of acceptance for income inequality. We have also revised results obtained in other research concerning similar problems—only income, age, sense of empowerment, conservative worldview and attitude towards redistribution proved to have direct significant impact on acceptance for income inequality.