Objectives To: a) Familiarize readers with the concept of a basic income guarantee (BIG) and its different forms; b) Consider how BIG could improve oral health and decrease oral health disparities; c) Motivate readers to advocate for the evaluation of oral health outcomes in BIG experiments. Methods Published articles and book chapters that have analyzed and reviewed data from past BIG pilot projects were examined for their findings on health and socioeconomic outcomes. Results Our findings suggest various areas and mechanisms whereby BIG can influence oral health‐related outcomes, whether through impacts on work, illness and injury, education, a social multiplier effect, expenditure behavior, and/or mental illness and other health outcomes. Conclusion Our findings illustrate the importance of assessing oral health‐related outcomes in future BIG pilot projects.