Siman 683
Presented here for study, not as a practical ruling. The Shulchan Aruch rules by Sephardi custom, the Rema's glosses by Ashkenazi custom, and the Kitzur follows Ashkenazi custom. For a practical question, ask your rabbi.
א כָּל שְׁמוֹנַת יְמֵי חֲנֻכָּה גּוֹמְרִין אֶת הַהַלֵּל. הַגָּה: וְכָל שְׁמוֹנַת יְמֵי חֲנֻכָּה אֵין אוֹמְרִים תַּחֲנוּן וצו"ץ וְלַמְנַצֵּחַ וְצִדּוּק הַדִּין גַּם בְּעֶרֶב חֲנֻכָּה בְּמִנְחָה, וְעַיֵּן לְעֵיל סי' קל"א (מַהֲרִי"ל וּמִנְהָגִים).
1 All eight days of Hanukkah, the Hallel is read. Rema: And all eight days of Hanukkah, Tachanun [the supplication prayer], Tzidkatcha [the abridged supplication prayer said on the Sabbath], Lamenatzei'ach, and Tziduk hadin [the funeral prayer] are not said: [Mahril and Minahgim].