For the determination of profit under the conditions provided for in the first paragraph of this I, debt waivers, under the conditions and within the limits mentioned in 9° of 1 of Article 39, are deductible in full for the taxpayer who grants them. If the taxpayer starts business during the year, he/she must exercise the aforementioned option within the time limit set for filing the declaration referred to in article 97. In the event of an exit from the tax regime provided for in article 102 ter, the taxable profit determined under the conditions provided for in the first paragraph of this I is increased by the receivables held by the taxpayer at 31 December of the year preceding that in respect of which the option is exercised for their amount excluding tax after deduction of an allowance of 34% (1). A decree shall set out the terms and conditions for the application of this article, in particular the terms and conditions for opting in and opting out of this arrangement as well as those for changing the accounting method. II. – Any options in this respect exercised prior to 1 January 1996 shall be deemed to be in order, subject to any court decisions that have become res judicata.