[1] Maher joined the team straight out of the minor grade during the 2009 championship, however, he didn't become a regular member of the starting fifteen until the following year.
In 2010 Tipp defeated Clare in the provincial decider by 1-22 to 1-17, giving Maher his second Munster under-21 winners' medal having previously won one in 2008 at wing half forward .
He made his debut in the National Hurling League in February 2009, lining out at centre-forward against Waterford and scoring a point in a 2–13 to 1–12 Tipperary victory.
[12][13] In October 2016, Maher left Ireland for six months army service in a peacekeeping mission to the Golan Heights in Syria.
[14][15] On 16 June 2019, Maher was stretchered off in first-half injury-time after appearing to twist his knee in an awkward fall in Tipperary's 1-22 to 0-21 defeat of Limerick.
[16] A scan subsequently revealed that he had ruptured the anterior cruciate ligament in his right knee, an injury which ended his season.
[17][18] On 22 May 2021, it was announced that Maher would miss the remainder of the 2021 season after suffering an Achilles injury in training on the previous Thursday which required surgery.