 In an emotional debut at Ticha Stadium in the first round of the 2019-2020 season against former club Cherno More Varna, Iliev provided an assist, but ultimately Cherno More prevailed 3-1.An occasional member of the Under 21 team, Iliev marked his international début under Hristo Stoichkov on 29 November 2004 in a friendly game against Egypt.His first goal for Bulgaria came against Iceland on 7 September 2005.