On 27 October, the European Commission presented its plans for a new Single Market Act. In its Communication, the Commission has listed 50 proposals that it plans to implement in the next few years.

The Commission has reiterated its intention to adopt a proposal to revise the Energy Tax Directive. Such proposal would breach the principle of subsidiarity. According to a draft prepared last year by the Commission's taxation and customs department, Member States would be obliged to levy a CO2 tax on fuels in order to cut emissions. The Commission wants to introduce minimum levels of taxation on different types of fuels related to the intensity of their emissions.

Moreover, the Commission is planning to propose, again, next year, a Directive introducing a common consolidated corporate tax base (CCCTB). It is important to mention that the European Commission has been trying, for a long time, to introduce a CCCTB. Several Member States, such as UK and Ireland, have been showing their opposition to such proposal. Even so, despite all the opposition towards this measure, the European Commission wants to proceed. Therefore, if a unanimous agreement will not be reached at the Council, Algirdas Šemeta will present the proposal under “enhanced cooperation."

Such proposals would be an infringement of Member States sovereignty over taxation, therefore the UK should veto them.