By now (January 25th 2011), Employers should have submitted their final P30 for 2010 to the Revenue Commissioners. This P30 was due to be received by the Revenue Commissioners no later than January 15th. Whilst some employers file Monthly P30s and some avail of certain exemptions that entitle them to the Quarterly P30 filing option, both groups were due to file their final P30 for 2010 in January 2011.