In 2010 Ball began work on a television adaptation of the crime noir novel The Mystic Arts of Erasing All Signs of Death by Charlie Huston, to be titled All Signs of Death. In December 2010, after several months of pre-production, HBO cancelled production on All Signs of Death.
He is also one of the executive producers of the Cinemax series Banshee.
Ball has discussed his Buddhist faith in numerous interviews, noting how it has influenced his film making. In an interview with Amazon.com, Ball commented on the iconic scene in American Beauty with the plastic bag, stating, "I had an encounter with a plastic bag! And I didn't have a video camera, like Ricky does... There's a Buddhist notion of the miraculous within the mundane, and I think we certainly live in a culture that encourages us not to look for that." Ball has also discussed how his Buddhism has shaped themes in Six Feet Under and True Blood which he has substantially contributed to.
Ball is gay and has been called "a strong voice for [the] LGBT community". In 2008 he made Out magazine's annual list of the 100 most impressive gay men and women. He lives with his partner, Peter Macdissi (who had a recurring role in Six Feet Under as Olivier) in Los Angeles.