With regard to sales to farmers, for the purposes of their family consumption, of products manufactured by processing companies from agricultural products supplied by these farmers, value added tax is only payable on the difference between the value of the manufactured products and that of the corresponding products supplied by the farmers to whom the sale is made.
For the purposes of determining this difference, the values are understood to include all costs and taxes, excluding value added tax and levies of any kind charged in addition to this tax and according to the same rules as the latter. In addition, flat-rate calculation methods may be laid down by decree in the Conseil d’Etat.