Pored rada na budžetu bloka od 27 nacija, koji je 2008, iznosio 116 milijardi eura, nadležnosti komisije uključuju izradu novih propisa, kao i osiguranje poštivanja sporazuma i zakona EU od strane država-članica.
In addition to handling the 27-nation bloc's budget, which amounted to 116 billion euros in 2008, the responsibilities of the commission include the drafting of new legislation, as well as ensuring that EU treaties and laws are observed by member states.