Cost to Have Something Notarized is an official fee charged by a notary public or other legal official for certifying, witnessing, or attesting the veracity of various documents. This fee can be based on either the actual service being performed or the complexity of the document being notarized. This fee must be paid before the notarized document is released, and may include additional fees for any additional services that are needed. Depending on the location and type of document, costs can vary greatly. Many states have different laws in place governing the cost of having something notarized; however, the average cost is usually around $15-25 per document.