Pérez Bernabeu, Begoña Assessing the Standard of Proof in Fiscal State Aid. Red Card to the Commission European State Aid Law Quarterly. 2019, 18(4): 447-457. doi:10.21552/estal/2019/4/3 URI: http://hdl.handle.net/10045/101607 DOI: 10.21552/estal/2019/4/3 ISSN: 1619-5272 (Print) Abstract: The General Court annulled the Commission’s Decision qualifying as State aid a tax regime granted by Spain to certain Spanish professional football clubs (namely, FC Barcelona, Real Madrid FC, Athletic Bilbao and Club Atlético Osasuna). The General Court took the view that the Commission had not proven that the tax regime had the effect of conferring an actual economic advantage on these four clubs. This judgment is highly significant because, without ruling on most of the substantive issues of the Case, it is the first time that criteria on the burden and standard of proof incumbent on the Commission are so clearly stated, particularly in the field of State aid. Moreover, this General Court’s approach is supported by recent and later Case law under which the Commission is required to carry out a complete analysis of all the factors that are relevant to the measure at issue. Keywords:Burden of proof, Standard of proof, Tax advantage, Football, Sports Lexxion info:eu-repo/semantics/article