Abstract: The article examines the legal, organizational foundations and a number of topical problems of insignificant transactions in Russian legislation with an indication of the origins of these norms in ancient Roman jurisprudence. The subject of the study is the problems caused by the recognition of transactions as insignificant in modern Russia. The object of the study is the legal provisions of civil law that carry out the legal regulation of void transactions. The purpose of the work is to form proposals that contribute to their leveling by identifying and analyzing the actual problems of the insignificance of transactions. The methods used are dialectical-materialistic, historical, a system of empirical research methods (analogy, modeling) and special methods (formal-logical, system-analytical), etc. The author examines in detail the signs of void transactions, the problems of recognizing the nullity of the transaction; the subject of which is property, with respect to the disposal of which there is an imperative prohibition, restriction.
Particular attention is paid to the problems of the insignificance of the part of the transaction. The main conclusions of this study are the following: it is justified to bring into compliance with Article 12 of the Civil Code and the legal position of the Supreme Court of the Russian Federation (Resolution of the Plenum of June 23, 2015 No. 25) with respect to the method of protecting civil rights ("application of the consequences of the invalidity of an insignificant transaction"); to formulate Article 169 of the Civil Code of the Russian Federation in a new edition reflecting the concept of "public interest". A special contribution of the author to the study of the topic is the proposal to specify Article 180 of the Civil Code of the Russian Federation in terms of indicating exceptions to the general rule of invalidation of part of the transaction. The results of the article can be used in improving civil legislation, in law enforcement, in further scientific research. Conclusions: despite the improvement of the norms of civil law, the massive nature of the recognition of transactions as void indicates significant problems, as insignificant transactions in general, as well as parts of these transactions (in practical and scientific-theoretical contexts), requiring optimal solutions.