Career
A product of the Hearts youth system, Buchanan made his breakthrough at Cowdenbeath. Having spent five years at the Fife club, he joined Scottish Football League First Division side Partick Thistle and subsequently Dunfermline Athletic. After spells in the lower divisions of Scottish football, Buchanan then joined Scottish League One side East Fife.
After a successful time in Methil, he moved to Scottish Championship side Alloa in July 2014.
Buchanan made his breakthrough in football at Cowdenbeath, progressing through their youth system to play in the first team Buchanan was prolific for the Central Park club, finishing top goalscorer in seasons 2005-2006 and 2006-2007.
Buchanan then signed for Partick Thistle at the start of the 2007-2008 season. Buchanan was the Firhill club"s top scorer that season, despite suffering a long-term injury early in 2008 and being out until October that same year, when he played in his return match against Airdrie United.
Buchanan predominantly played in the number 9 shirt and was thought to be the next big prospect at the club
Buchanan notched 14 goals in that first season, from 27 starts and three substitute appearances. In January 2011, Buchanan signed for Dunfermline Athletic. The club finished bottom of the table in the 2011-2012 Scottish Premier League season and were automatically relegated into the Scottish Football League First Division.
In August 2012, it was confirmed that Buchanan had rejected a new contract with Dunfermline and signed foreign
On 7 December 2012, Buchanan re-signed for Airdrie United. Buchanan left Airdrie on 10 January 2013 and then signed for Ayr United until the end of the 2012-2013 season.
On 26 July 2013, Buchanan signed for East Fife. After one season there, he signed for Alloa.
Liam has proved to be a fan favourite at the Indodrill Stadium.
Scoring over ten goals, including two crucial goals against Rangers, both coming at Ibrox in 1–1 and 2–2 draws.