In order to address some existing difficulties in corporate income taxation (CIT), the European Commission proposed the introduction of measures for coordination, a solution contested by some member states but supported by most professionals and many organizations representing the interests of European employers. Disputes in connection with the introduction of the Common Consolidated Corporate Tax Base (CCCTB) are occasioned by the uncertainty regarding its effects. Since CIT makes an important contribution to the forming of central budget revenues, the CCCTB is a challenge for Romanian public authorities. The Romanian government has not made clear its options in this respect. In this paper we present the main points of view about the implications of introducing the CCCTB as seen by specialists and estimate the effects of the EU formula apportionment on CIT revenues in Romania.According to research results on a sample of companies in 2006-09, Romania will assume a loser position if the EU formula apportionment uses the payroll (although the loss of tax revenue would be lower than other researchers have estimated) and a winner position if the EU formula apportionment does not use the payroll.