Paiement des revenues et des cotisations de l'employeur - Remises trimestrielles Start of the period End of the period Due date March 2012-01-01 2012-03-31 2012-04-16 June 2012-04-01 2012-06-30 2012-07-16 September 2012-07-01 2012-09-30 2012-10-15 December 2012-10-01 2012-12-31 2013-01-15