A technique for validating Service Level Agreements (SLAs) for roaming user terminals is presented. A method implementation of the technique performed in a home network of the roaming user terminal comprises obtaining Service level-related Performance Data (SPD) that have been collected by the user terminal while roaming in a visited network. Additionally, subscription information associated with the user terminal and indicative of an SLA is obtained. Next, the SLA is validated based on a comparison of the SPD, or data derived therefrom, with the subscription information.