Afif made his T20I debut in 2018 against Sri Lanka and has since scored 1003 runs in 55 innings in the format at a strike rate of 120.55. He is also handy with the ball, capable of chipping in with part-time offbreaks, though he is not often used with the ball by Bangladesh. He also has the unique distinction of being the youngest T20 debutant to pick up a five-wicket haul, at just 17 years and 72 days, when he took 5 for 21 for Rajshahi Kings against Chittagong Vikings in the BPL in December 2016.