He made his senior international debut in June 2018, in a test series against Germany.[3]
In June 2018, Brand was selected in the Australian national squad for the 2018 Champions Trophy in Breda, Netherlands. The team won the tournament, defeating India 3–1 in a penalty shoot-out after the final finished a 1–1 draw.[4]
Tim has been selected in the 2018 Australian Men's Hockey Team to participate at the World Cup, in Odisha 28–16 December.
Brand was selected in the Kookaburras Olympics squad for the Tokyo 2020 Olympics. The team reached the final for the first time since 2004 but couldn't achieve gold, beaten by Belgium in a shootout.[5]