Earls also started against Castres on 14 January 2012. He also started in Munster's 51–26 win against Northampton Saints on 21 January 2012. Earls started in Munster's 2011–12 Heineken Cup quarter-final loss to Ulster on 8 April 2012. He also started for Munster in their 45–10 defeat against Ospreys in the semi-final of the 2011–12 Pro12. Earls started against Saracens on 8 December 2012.