Makalio's move south proved to be a fruitful one as after just one season in Marlborough club rugby, he was chosen to replace the departing Quentin MacDonald in the Tasman Mako squad for the 2016 Mitre 10 Cup. He instantly established himself as the first choice in the number 2 jersey, making 11 appearances, 10 of them from the start and scoring 2 tries as the Mako finished as Premiership runners up in 2016. He was part of the Tasman team that won the Mitre 10 Cup in 2019for the first time. Makalio was selected in the South Island squad for the North vs South rugby union match in 2020 but did not play. In Round 9 of the 2020 Mitre 10 Cup Makalio played his 50th game for the Mako against. The Mako went on to win their second premiership title in a row. Makalio played only 6 games for Tasman during the 2021 Bunnings NPC due to injury as the Mako made the final before losing 23–20 to.