 Miller signed for Sheffield United at the end of July 2012, agreeing a two-year contract with the option of a further year.He made his debut on 11 August 2012, in a 2–2 draw against Burton Albion in the League Cup, and made his league debut a week later during a 1–0 win against Shrewsbury Town at Bramall Lane.Miller had to wait until mid October to score his first goals for the club, netting twice in a 4–1 win against Notts County in the Football League Trophy.