This form is filed with the Court after the service is done. This form is called an Affidavit of Service.The affidavit of service must state the date, place, and time when the papers were served, and include a description of the person served. An affidavit of service, also sometimes called a proof of service affidavit, is a type of affidavit that relates to legal documents that are filed with a court. Learn about the requirements for preparing and filing a civil complaint, including how to prepare a summons, along with some cautions. Service of paperwork is a critical part of the legal action. Affidavit: A written declaration or statement of facts made under oath or before an authorized officer.