The increase in the number of violations of tax legislation on the payment and settlements of taxes and fees in Ukraine, as well as the complication of the forms and means of committing such violations, necessitate a detailed study and improvement of the theoretical and methodological foundations of forensic audit. In addition, the lack of a forensic audit of settlements related to certain types of taxes and fees, among the certified and recommended for use in the Register of forensic audit methods, determines the relevance and timeliness of the research topic. The purpose of this article is to substantiate theoretical and methodological provisions and develop practical recommendations for the forensic audit of settlements related to the payment of taxes and fees. The article uses the following research methods: induction and deduction, analysis and synthesis, abstract-logical, cause-and-effect relationship. The results of the study are: study of the dynamics of tax crimes in Ukraine in recent years; substantiation of the main types of tax violations that are objects of forensic audit; determination of the features of the methodology of forensic audit of settlements related to the payment of taxes and fees; generalization of the evidence base, which is the basis for a forensic audit of settlements related to the payment of taxes and fees; development of a general algorithm for forensic accounting expertise of settlements related to the payment of taxes and fees, in the context of the main stages: preparatory, organizational, research, final. Attention should be paid to the generalization of the main procedures used at the research stage, in the context of the main types of tax settlements during conducting an expert study of adjusted tax revenues, tax expenses; calculation and payment of value added tax, personal income tax, and environmental tax. The results of the study should contribute to the further development and improvements of the theoretical and methodological foundations of forensic audit of settlements related to the payment of taxes and fees, a full and comprehensive study of the actual circumstances of the case, and also aim to create opportunities to increase the certainty of the conclusions of forensic auditors.