A Notary Public Cost is the fee charged to perform a notarial act. It is usually set by law and regulated by state governments, so the cost of a notariat act will vary from one location to another. Notaries are responsible for authenticating legal documents, administering oaths and affirmations, taking depositions and affidavits, witnessing signatures on documents, and other duties as required by law. Their services serve as an important safeguard against fraud and are essential in many sectors of the economy. As such, the cost of having a document notarized must be taken into consideration when making business decisions.