Tax and benefit microsimulation models empirically contribute to public policies evaluation. The upcoming session of the Empirical & Econometric Methods Sessions reviews two models, namely Euromod and Openfisca. Euromod is a software modelling taxes and benefits for 28 European states, while Openfisca is an open-source platform with systems publicly available for six territories (France, New Zealand, Barcelona, Tunisia, Italy, Senegal). I will discuss their features, advantages as well as limitations.