Forgery, deceive or injure another, he falsely makes, completes or alters a written instrument which is or purports to be. However, a judge can sentence you to one and one third years to four years in prison.Forgery is illegal, both under 18 USC Chapter 25 and state law. What is the penalty for forging a signature on a vehicle title? What is the penalty for selling before it is transferred? Offering a false instrument in the second degree carries a sentence of one year in prison. Registration of Motor Vehicles, fees, renewals. Those who are convicted of this offense could find themselves sentenced to up to five years in jail and forced to pay expensive fines.