Born in Melbourne, Taylor began performing and writing for theatre in his mid-teens. As a comic-book writer, he has published extensively with major American comics publishers Marvel and DC, as well as Dark Horse Comics, Gestalt Publishing, Boom! Studios, Wildstorm, and IDW Publishing. For Marvel he has written for X-Men and Iron Man, but is best known for All-New Wolverine, which he has written since 2015. For DC, he is best known, perhaps, for his three years on Injustice (in which Superman, tricked by the Joker in murdering Lois Lane, builds a dictatorship against which other superheroes fight), but has also written for Green Lantern, Batman, Superman, and Justice League. His work for Dark Horse includes a range of works in the Star Wars universe, from standalone graphic novels to the sixteen-part Star Wars: Invasion comic book. In 2012, he wrote a short series with 2000AD, publisher of Judge Dredd comics.
As a playwright, his work has been produced across the world, including the Edinburgh Festival and in Brighton (UK) and Boston (USA), as well as widely across Australia.
In 2017, it was announced that Taylor has joined the Cleverman writers' room for series three. As a script writer, he has also scripted The Example (a short film based on his own play) and worked on the 'motion-comic' Mad Max, based on George Miller's films, which was released as a prequel for a video game from Avalanche Studios in 2014. In television, however, he is best known as the executive producer and creator of The Deep, the animated television series based on his comic series of the same name.