The contribution payable by companies with fewer than eleven employees is paid in three instalments, on 30 April, 31 July and 31 October each year.
The amount of each instalment is equal to a quarter of the contribution payable by the taxpayer during the last year for which he was liable. For the current year, the amount is equal to one quarter of the contribution assessed on the basis of the previous year’s remuneration calculated in accordance with the procedures set out in article L. 6331-37.