Abstract
This article examines the methodological foundations of the invalidity of an
transaction in civil law from a scientific and theoretical point of view. Also on the topic of
this study, special attention was paid to the issues of scientific opinions of scientists from
CIS countries and foreign countries, the rule of law or the basics of morality, antisocial and
insignificant transactions, and opinions were expressed by the author. It should also be
noted that the recognition of a transaction as invalid has not been studied in civil law as
an object of monographic research, it is precisely because of this relationship that it involves
a comprehensive study in civil law relating to the theoretical and significant in practice
application of the right to recognize a transaction as invalid. The author tried to theoretically
comprehensive study the invalidity of a transaction made for the purpose, obviously contrary
to the fundamentals of law and order or morality, to fully disclose the problems on this topic
from a modern scientific point of view. In particular, during the study of the topic,
conclusions were drawn about the invalidity of the transaction.