The taxpayer may spontaneously declare an amount of advance payment in respect of the year of commencement of receipt of income falling within a category of profits or income mentioned in article 204 C or in respect of the following year and pay the amount in accordance with the conditions set out in article 1663 C (3).
The amount of the payments due the year following the start of the collection of the income is calculated, where applicable, on the basis of the amount of the advance payment declared in respect of the year of the start of the collection of this income, adjusted, where applicable, pro rata temporis over a full year, until the levy is implemented in accordance with the procedures set out in the first paragraph of article 204 E.