The 2018 AFL Tasmania TSL premiership season is an Australian rules football competition staged across Tasmania, Australia over twenty-one home and away rounds and six finals series matches between 30 March and 15 September. The League was known as the Bupa TSL under a commercial naming-rights sponsorship agreement with the company. Before the season started there were three team changes to the competition with Burnie and Devonport departing the league. Hobart City were replaced in the competition by North Hobart who returned to the competition after a 4-year absence.