On 5 May 2010, the government submitted Budget Bill No. 6130 to parliament. The most important details regarding corporate income tax, which would apply as from 1 January 2011, include: -   an increase of the surcharge for the employment fund from 4% to 5%. As a result, the combined tax rate for Luxembourg city would increase from 28.59% to 28.8%; -   an increase of the tax credit for investments and the introduction of additional measures to promote energy saving and protect the environment; -   the introduction of a minimum fixed corporate income tax levied on holding companies...