(Signature of Deponent). This affidavit is made voluntarily for the purpose of establishing the fact that my signature is a forgery. 7.Do you know who forged your signatures? An affidavit of forgery is an official declaration that a fraudulent act was committed. It should be completed, notarized, and sent to notify institutions. Forms ; Complaint Verification. PDF ; Summons with Notice. Click the "Edit" button in the "Tax Transaction" screen to go back into the form.