#In Yoreh De'ah, the [[Shach]] wrote a commentary refuting the Taz known as "Nekudot HaKesef," which wasn't always included in full in old prints of Shulchan Aruch.<ref>Shem HaGedolim (Sefarim, Nun 41)</ref>
#"עט"ז" quoted by the Taz and [[Shach]] in Yoreh De'ah is a reference to the Levush's עטרת זהב.<ref>Shem HaGedolim (Sefarim, Ayin Kuntress Acharon 1)</ref>
#There is a story from the Vilna Gaon alleging that when the Shach was seeking to publish his commentary on the Shulchan Aruch, as was the custom at the time, he approached the Taz for a haskama (endoresement). Upon seeing that the Shach's commentary was perhaps greater than his own, the Taz tried to suppress its publication. As a result of this, the Halacha on Orach Chaim and Yoreh De'ah matters are mostly adjudicated in favor of the Magen Avraham and Shach respectively against the Taz, and the Taz is not prominently featured on the pages of Even HaEzer and Choshen Mishpat. <ref>Rav Yosef Dov HaLevi Soloveitchik (1903-1993), as reported by Rav Hershel Schachter in Nefesh HaRav (Pg. 19). Rav Soloveitchik mentioned that he heard this story from his father, Rav Moshe Soloveitchik (son of the famous Rav Chaim Brisker), confirming its authenticity. Rav Schachter notes that other versions of the story exist from different talmidim of Rav Soloveitchik's, each resulting in the same
consequence on subsequent Halacha.</ref>
See also Shem HaGedolim (Sefarim, Tet 16).