This paper analyses the effect of single farm payments (SFPs) introduced by the Luxembourg agreements (2003) of the Common Agricultural Policy, on the performance of crop farms in Eure-et-Loir, France, over the period 2005–2008. Technical inefficiency scores of these crop farms are first estimated. Then, the estimated technical inefficiency scores are regressed on SFPs received by farmers following a standard two-step procedure. The analysis shows a negative effect of SFPs on the technical inefficiency of Eure-et-Loir farms. This implies that subsidies granted to farms without production restrictions seem to reduce technical inefficiency.