Ittihad Tanger were confirmed to be champions of the 2017–18 Botola season on 12 May 2018, finishing atop the first division of Moroccan football for the first time in club history.

[4] On 2 June, the contracts of players Bakre El Helali, Abdelghani Mouaoui, Mohamed Amsif, Youssef Sekour, Jamal Ait Lamaalem, Zakaria Melhaoui, Soufian El Hassnaoui, Soufiane Gadoum, Ismaël Daoud, Yahya Boumediene, and Abdoulaye Diarra expired.

[5] On 6 June, Ittihad Tanger and both Ayoub El Khaliqi and Mehdi Baltham negotiated a two-year contract extension lasting until 2019.

[13] On 4 August, Ittihad Tanger were defeated by DR Congo local football team 2–0 at Centre National De Foot Maamoura in Rabat.

[14] On 6 August, the club completed the transfer of 28-year-old forward Mehdi Naghmi from AS FAR on a three-year contract,[15] On 7 August, Ittihad Tanger defeated Spanish Third División team Algeciras 4–2 in Tangier with goals from Ayoub El Khaliqi, Ismail Benlamalem, Yassine Amrioui and Ahmed Chentouf.

[18] On 16 August, Ittihad Tanger lost 2–1 to Chabab Rif Al Hoceima in the last pre-season friendly match.

[20] On 27 August, Ittihad Tanger won 1–0 against Union Sidi Kacem; Naghmi scored the only goal from penalty as IRT cruised into the last 16 of the Coupe du Trône.

[22] On 7 September, Ittihad Tanger announced they had reached an agreement with AS Athlétic d'Adjamé for the transfer of N'do Didier Pepe.

[26] On 18 September, Ittihad Tanger announced they had reached an agreement with Raja Casablanca for the transfer of Mohamed Bouldini for 60,000 dollars.

[29] and the club loaned Abdelali Assri and Abdelghafour Jebroun to Widad Tanger, and Yasser Imrani to Fath Wislan.