The current paper provides new insights on competition degree among 2,024 commercial, cooperative and savings banks from the 28 European Union states during 2005-2015. Bank-level Lerner index, its efficiency-adjusted form and Boone indicator are the computed indices, with total output consisting in loans, customer deposits and securities. The estimates of marginal costs result from solving a Fourier flexible form of translog cost function. The banks included in the sample remain very competitive over time with the commercial and cooperative ones displaying the highest competitiveness. Non-OECD, upper-middle income and Eurozone states have a more competitive banking sector comparing to their counterparts.