Posting.Stat brings together a consortium of universities and research centres from 10 different Member States, supported by several European social partner organisations. The consortium aims to promote the evidence basis through the collection and analysis of national micro-data. The geographical scope of the project proposal covers the six main ‘sending’ Member States (Germany, Poland, Italy, Spain, Slovenia and Luxembourg) and the six main ‘receiving’ Member States (Germany, France, Belgium, Austria, the Netherlands and Luxembourg) of posted workers. Extracting administrative micro-data from the competent public authorities, complemented by desk research as well as by expert interviews, should result in more accurate figures on the scale, characteristics and impact of intra-EU posting, both in the main receiving and sending Member States. In addition, we pay additional attention to some ‘forgotten sectors’ in the posting debate (e.g., the live performance sector, the health and social care sector, the research and technology sector) as well to the subsectors of some labour-intensive sectors of activity (e.g., construction, the machine building industry, processing and preserving of meat). A second objective of the research proposal is to gain a better insight into the scale and profile of fraudulent posting. Finally, the research project aims to focus on the impact of the COVID-19 pandemic as well to make a first assessment of the implementation and correct application of Directive (EU) 2018/957 amending Directive 96/71/EC concerning the posting of workers in the framework of the transnational provision of services. The quantitative and qualitative output will be included in 10 country reports. Based on the in-depth national contributions prepared by 10 national experts, a synthesis report will be produced. The results will be disseminated through targeted publication strategies.