In this paper the single point incremental forming (SPIF) of steel sheets is investigated by means of a numerical and experimental approach. A Finite Element (FE) model has been developed and validated by comparison with experimental data measured during the process (forming forces) and on the finished component (strain distribution and final shape). The obtained results showed the capability of the FE modelling to predict the material deformation process. This can be considered as a starting point for the setting and the reliable definition of the SPIF process parameters for producing parts with complex geometries, in order to avoid expensive trial-and-error approaches based on extensive experimental campaigns.