"JCB" was re-issued on 12 December 2005. According to British music and film retailer HMV, "JCB" marginally outsold Westlife's "When You Tell Me That You Love Me" during its first day of release, although sales of the latter were expected to grow over the week. On 18 December 2005, the week before Christmas, "JCB" entered the UK Singles Chart at number one, outselling "When You Tell Me That You Love Me" twofold, and also topped the Scottish and UK Indie charts. Bookmakers then shifted focus to "That's My Goal", which had four days to sell more copies than "JCB" before the next chart was published. On Christmas Day, "JCB" was pushed into second place by "That's My Goal". Both songs held their positions for the next four weeks, and "JCB" finished 2005 as the UK's 12th-most-successful single. It is Nizlopi's highest-charting single in the UK, with follow-up "Girls" failing to reach the top 75. In April 2019, the British Phonographic Industry awarded the song a platinum certification for sales and streaming figures exceeding 600,000.