The concept of financial literacy, which has become popular as a 21st-century skill, is also a new field for mathematics education. Financial literacy, which has taken place in PISA [Program for International Student Assessment] since 2012, has not only been presented as a separate course and has also increased in density in related courses such as mathematics through tasks, curriculums and tests. The aim of this study was to present an interaction model in which mathematical and financial literacy competencies can be presented in a common framework. In the organization of this model, literacy literature, consisting of both mathematical literacy and financial literacy models, as well as the PISA literacy framework, were used. The focal point of the model was not individual skills but is the dimensions of this interaction that should be considered in the organization or analysis of an educational or an instructional document (tasks, applications, curriculums, etc.). While this model is built on the basis of the PISA literacy framework, it has some differences with respect to the components of the dimensions. It is expected that the model contributes to the financial literacy education integration initiatives, studies on the financial literacy education and the analysis of measurement tools of financial literacy, such as PISA.