Paiement des revenues et des cotisations de l'employeur - Remises trimestrielles Start of the periodEnd of the periodDue dateMarch2015-01-012015-03-312015-04-15June2015-04-012015-06-302015-07-15September2015-07-012015-09-302015-10-15December2015-10-012015-12-312016-01-15