A number of governments across the world have adopted fiscal policy rules, especially against the backdrop of worsening fiscal performances and rising debt levels. Recently, following the financial crisis, fiscal rules have been advocated to support fiscal consolidation efforts and to ensure long-term sustainability of government finances. This chapter empirically analyzes the impacts of fiscal rules on fiscal performance in microstates with a focus on the Caribbean, where fiscal consolidation has been a major challenge. Broadly, we address three questions. Are there fiscal rules in microstates in general, and in the Caribbean in particular? If the answer is yes, what types of rules exist and what are their characteristics? Is the existence of fiscal rules in microstates associated with improved fiscal performance?