To check the possibility of manuscripts plagiarizing, it is necessary to check through the application to check the level of similarity of articles using the Turnitin application or Plagiarism Checker X. The maximum level of similarity allowed in Tanzil: Journal of Al-Quran Studies is 25 percent. If the published article is proven to have committed plagiarism, the administrator will withdraw or revoke the manuscript and put the author's name on a black list that is not allowed to resubmit articles in the journal. The act of plagiarism committed by the author is not the responsibility of the journal manager.