In September 2018, he was named in Kandahar's squad in the first edition of the Afghanistan Premier League tournament but did not take part in the tournament. The following month he was named as the captain of Bengal Tigers in the T10 League to be played in November and December in the United Arab Emirates having been picked second in the competition's draft in July. As of September 2019, Billings has made six first-class and six List A centuries. The first was a score of 131 made on his first-class debut for Loughborough MCCU against Northamptonshire at the beginning of the 2011 season. He scored his first first-class century for Kent in July 2015 against Essex at Tunbridge Wells, having been out for 99 earlier in the same month against Surrey. His third first-class century came against Gloucestershire in August 2016 and is his current high score of 171. Billings' fourth, fifth and sixth centuries were scored in back-to-back innings in September 2019, including two in the same match against Yorkshire at Headingley, the first time two centuries had been scored by the same player on the ground in a County Championship match. Billings has scored six List A cricket centuries and in 2014 shared the Walter Lawrence Trophy for the quickest century in County cricket during the season, scored off 46 balls against Somerset in a 2014 Royal London One-Day Cup match. His highest List A score of 175 was made for England Lions against Sri Lanka A at his home ground of Canterbury during July 2016 whilst his highest Twenty20 score of 95 not out was made for Kent against Hampshire at Beckenham in July 2018. "As of 11 September 2019" Billings has been involved in supporting the development of cricket by charitable organisations and throughout the world. He has supported activities organised by the Lord's Taverners and worked with disabilities cricket teams with the charity and with NatWest’s Cricket has no boundaries campaign. He is an ambassador for the Taverners and launched a cricket ambassador programme for them in 2016. He has worked with youth cricket teams and in October 2017 visited Rwanda to play in a T20 cricket match to mark the opening of the Rwanda Cricket Stadium. He is a patron of cricket in Rwanda.