This research focuses on a notarial certificate defined as an authentic document which is legally formulated by a public official who is authorized to do so at therespective location. Its objective is to learn the possibility of annulling this authentic document and to learn its post-position if it is annullable. To generate the research findings, juridical-normative method-reviewing the legal basis, synchronized law, comparative law, and history of law-is applied. The data in this research was collected through literature study and it was then qualitatively analyzed. The findings suggest that a notarial certificate legally binds all parties stated in it and its weight of evidence is not only absolute but also under legal protection. Therefore, it is unchengeable by anyone. However, when this certificate is submitted to the court as evidence, the judge assigned for the case has the authority to issue a verdict on this document.Keywords : Notarial certificate, Cancellation, Judge