Thomas Stanley Holland was born in Kingston-upon-Thames, Surrey, to Nicola Elizabeth (Frost), a photographer, and Dominic Holland (Dominic Anthony Holland), who is a comedian and author. His paternal grandparents were from the Isle of Man and Ireland, respectively. He lives with his parents and three younger brothers - Paddy and twins Sam and Harry. Tom attended Donhead Prep School. Then, after a successful eleven plus exam, he became a pupil at Wimbledon College. Having successfully completed his GCSEs, in September 2012 Tom started a two-year course in the BRIT School for Performing Arts & Technology notable for its numerous famous alumni.
Holland began dancing at a hip hop class at Nifty Feet Dance School in Wimbledon, London. His potential was spotted by choreographer Lynne Page (who was an Associate to Peter Darling, choreographer of Billy Elliot and Billy Elliot the Musical) when he performed with his dance school as part of the Richmond Dance Festival 2006. After eight auditions and subsequent two years of training, on 28 June 2008 Tom made his West End debut in Billy Elliot the Musical as Michael, Billy's best friend. He gave his first performance in the title role of Billy on 8 September 2008 getting rave reviews praising his versatile acting and dancing skills.
In September 2008 Tom (together with co-star Tanner Pflueger) appeared on the news programme on channel FIVE and gave his first TV interview. In 2009 Tom was featured on ITV1 show "The Feel Good Factor". At the launch show on 31 January he and two other Billy Elliots, Tanner Pflueger and Layton Williams, performed a specially choreographered version of Angry Dance from Billy Elliot the Musical, after which Tom was interviewed by host Myleene Klass. Then he became involved into training five ordinary British schoolboys learning to get fit and preparing their dance routine (fronted by Tom) for the final "The Feel Good Factor" show on 28 March 2009. On 11 March 2010, Tom, along with fellow Billy Elliots Dean-Charles Chapman and Fox Jackson-Keen appeared on The Alan Titchmarsh Show on ITV1.
On 8 March 2010, to mark the fifth anniversary of Billy Elliot the Musical, four current Billy Elliots, including Tom Holland, were invited to 10 Downing Street to meet the Prime Minister Gordon Brown. It was Tom Holland who was chosen to be a lead at the special fifth anniversary show on 31 March 2010. Elton John, Billy Elliot the Musical composer, who was at the audience, called Tom's performance "astonishing" and said that he was "blown away" by it. Holland had been appearing on a regular basis as Billy in Billy Elliot the Musical rotating with three other performers till 29 May 2010 when he finished his run in the musical.