Purpose – to describe financial security assurance models and assess the possibilities of using them to solve problems to ensure economics welfare.Research methodology – analytic, systematic, generalization and comparative methods are used in this article.

Findings – the content of the financial security concept is revealed at the microeconomic and macroeconomic levels, while examining how the selection and implementation of appropriate financial security measures can contribute to sustainable economic prosperity.

Research limitations – the consequences of the implementation of the financial security models analyzed in this article are commented on assessing the peculiarities of one country’s national legal system.

Practical implications – appropriate solutions for maintaining financial security provided in the strategies of creating economics welfare can help to decrease social exclusion, risks and negative effects of economic crises.

Originality/Value – in the article was formulated theoretical models of financial security assurance. The use of these models or combinations of models at microeconomic and macroeconomic levels to incorporate financial security instru-ments allows policy makers to have a universal toolkit in their arsenal. This enables not only to make decisions more quickly, but also to solve the problems of ensuring economics welfare in a more systematic way.

DOI: https://doi.org/10.3846/cibmee.2021.585