An affidavit of forgery is an official declaration that a fraudulent act was committed. It should be completed, notarized, and sent to notify institutions.Important: The person alleging forgery must complete this form in longhand. I am first duly sworn and state I am: Name. Form Instructions: 1 — Complete all applicable areas on the form and sign and date in the signature area. 2 — Print and mail a copy of this notarized form to:. What is an Affidavit of Identity? I swear or affirm under penalty of perjury the above stated facts are true and correct to the best of my knowledge. This affidavit is for victims of identity theft. To avoid delays do not use this form if you have already filed a Form 14039 for this incident.