On 19 September 2012, the Advocate General (hereafter “AG”) delivered his opinion in the case of Argenta Spaarbank NV (C-350/11). The AG stated that the Belgian Notional Interest Deduction Regime (“NID”), with respect to its treatment of foreign permanent establishments (hereafter “PEs”), is not in line with the freedom of establishment.
Under the NID regime, Belgium introduced a sui generis corporate tax deduction, i.e. Belgian corporate income taxpayers are for tax purposes allowed to claim a NID reflecting the economic cost of the use of capital, equal to the cost of long-term, risk-free financing.