[3][4] He played alongside his brothers, Florenz and Filbert, who were also his teammates during his college career at the University of the Philippines Diliman.
In 2019, Tacardon received a call-up to the Philippine U19 national team for the 2019 AFF U-18 Youth Championship in Vietnam.
[16] He made his debut on the second matchday in a 4–1 loss against Myanmar, where he came on as a substitute for Carlo Dorin and scored the Philippines' consolation goal.
[17] Tacardon would then receive a call-up to the Philippines U23 side in 2022 while playing for UP, representing the country at the 31st SEA Games, coming on as a substitute for Jovin Bedic in a 3–2 loss against Myanmar.
[19] While still competing in the UAAP, Tacardon and his college teammates Marc Tobias and Ramil Bation were called up by then-head coach of the Philippine national team Tom Saintfiet for a Manila-based training camp alongside local PFL players.