The short answer is yes, a last will and testament can be changed. A change to a will is called a codicil in the State of Utah. But the more complicated answer is that it depends on the reason for the amendment, how it's done, and how outdated the will is. First, let's go over the two types of wills that you may have: a holographic will and a formal legal notarized will. A holographic will is a handwritten document that doesn't require any witnesses or notary to be valid. It's become more common to use electronic documents to write down your final wishes, but if you still have an old hand-written version of a will somewhere, you're in possession of a holographic will. In order for this type of document to be valid, it must include all four elements required by state law—the date of signing (which implies the date of execution), your signature, your name, and the names and addresses of your heirs who are now entitled to inherit your property. To change this type ...