The most important personal income taxation measures issued by the Belgian government at the end of the year are summarized below. However, with the exception of the benefit in kind for electricity and heating, the parliamentary process has not yet been concluded.
Reduction in lump sum professional expenses. Company directors who do not deduct actual professional expenses are entitled to a lump sum deduction depending on their gross salary. The amount of the lump sum deductible expenses will be reduced from 5% to 3% of gross salary, with a maximum deduction of EUR 1,555.50.
Company cars. As of 1 January 2010, the valuation of the amount of the benefit in kind for company cars will depend on the CO2-emission level of the car . The value of this benefit in kind will be determined as follows: kilometers driven (private use) x CO2 emission of the car per kilometer x CO2 coefficient. The CO2 coefficients to take into account are 0.00210 euro per CO2 gram for gas, LPG and natural gas engines, and 0.00230 euro per CO2 gram for diesel engines.
The minimum threshold for the distance to determine this benefit in kind remains 5,000 km and the amount cannot be lower than 0.10 euro per kilometer.
Fuel expenses.  As of 1 January 2010, the tax deduction of fuel expenses incurred for professional purposes will be limited to 75%.
Benefit in kind for electricity and heating. A royal decree was published in the Belgian Official Gazette of 10 December 2009 to increase the amounts of the lump sum taxable benefit in kind to be recognized for the free provision of electricity and heating by the employer / company to its employees / directors.
Energy-saving investments. The scope of the existing tax reduction for energy-saving investments will be narrowed because the reduction will no longer apply for new dwellings, and the maximum amount will be reduced from 2,600 to 2,000 euro, as from tax year 2012. However, a 10-year tax reduction of 300 euro per year will be introduced for the construction of low-energy dwellings. A similar tax reduction of 1,200 euro per year will apply for zero-energy dwellings.