This interactive legal document enables you to generate a codicil to a simple Will . A codicil is sort of a legal "P.S." to a Will. You can revoke a clause in your Will and then substitute a new clause, or simply add a new provision (such as a new gift of an item of property). A codicil must be executed with all of the formalities of a Will. It must be typed or computer printed, then dated and signed by you in front of three witnesses. Codicils can be sensibly used to make limited changes to a Will, for example, when you want to change who receives one item.