The object of the research: a system of financial institutions that direct economic activity to ensure the national well-being. The purpose of the research: the disclosure of the essence, patterns and prospects for the formation of the financial architectonics of the national well-being, the definition of institutional mechanisms for its functioning and the social consequences of the construction. The methods: method of ascent from abstract to concrete, method of unity of historical and logical, structural method, method of institutional analysis, method of analysis and synthesis, method of comparative analysis, statistical methods, quantitative methods, positive-normative method, econometric methods, methods of foresight-prognostication. Scientific novelty: the content of the financial architectonics to ensure the national well-being as the relation between hierarchical and network components, where public finances represent a hierarchy, decentralized finances reflect the network type of relations, is revealed; it has been proved that reciprocal and equivalent exchange is a special type of relationship in which equivalence is achieved and the transfer of goods is carried out, that plays a symbolic role and embodies the act of establishing, strengthening the relations of trust; the functions of the well-being fund as an integral part of financial architecture have been clarified, namely: accumulation, distribution, redistribution and use of funds that are directed to the realization of the goals of well-being and sustainable development of society; modern ideas about well-being have been improved by expanding the subject field of research based on the application of a scientific approach to measuring human development ‘beyond GDP’, which makes it possible to increase the security of satisfaction of human needs. Practical value of research: the main provisions and conclusions of the dissertation can be used to improve the regulation of the financial architecture of the financial system, public finances, business environment, household finances; recommendations for improving the monetary transmission mechanism are able to improve the transmission of financial flows in the financial infrastructure. Sphere of use: higher educational institutions.