Poldark has not been commissioned for a third series.
Black Mirror . In September 2015 , Netflix commissioned a third season of 12 episodes . Poldark (2015 TV series) . On 8 April 2015 , the BBC announced that a second series had been commissioned which premiered on 4 September 2016 . The BBC announced on 6 July 2016 , before series 2 had begun , that a third series had been commissioned .