The immigrant entrepreneurs limited financing choices, and the various barriers preventing their access to the necessary financing in host countries have been extensively covered by the immigrant entrepreneurship literature. However, little is known about how immigrant family businesses (IFBs), at their startup level, manage to overcome these barriers and survive in host countries. Thus, this paper introduces the concept of financial ambidexterity of IFBs as the behavioral ability that some IFB owners develop to flexibly explore and exploit financing opportunities in both coethnic and mainstream contexts in host countries. In doing so, the paper draws on the complementary role of boundary work and behavioral complexity in determining the IFBs financial ambidexterity. As such, the paper contributes to the literature on entrepreneurial finance, and to the intersection between family business and immigrant entrepreneurship literature by introducing a mechanism that enables IFBs to overcome financing barriers in host countries.