Reverse order of posts in a certain taxonomy archive? July 27, 2022 by Tarik Billa Untested but can you do: add_action('pre_get_posts', 'change_post_order'); function change_post_order($query){ if($query->is_tax('series')) { $query->set('order','ASC'); $query->set('orderby','date'); } } Based of this and this.