Bills of sale do not require notarization in the state of Illinois, but it is always an option. Complete and mail the Notice of Sale form.(attached to the bottom of the title) to the. : Notarization is not required for the title in Illinois. However, obtaining a notarized bill of sale may add an extra layer of security. To finish your bill of sale, simply sign the document, preferably in the presence of a notary public, to validate the transaction. You and the buyer can sign the Bill of Sale in front of the Notary Public and have it notarized. When you privately sell a car in Illinois, the Bill of Sale does not need to be notarized.
