How Do I Know If My Will Is Legit?

IMPORTANT: This guide is for general educational purposes for U.S. adults with relatively simple finances. It is not legal, tax, or financial advice. HeirLight is not a law firm and does not provide legal advice. Laws vary by state; consider consulting a licensed attorney about your specific situation.
You wrote a will, or you're about to, and a quiet doubt lingers: is this thing actually going to hold up? The reassuring part is that you can check it yourself against a short list.
Quick answer: A will is legit when it meets a handful of requirements: it's in writing, you signed it, and the right number of witnesses (usually two adults, ideally people who don't inherit under it) signed it too. You must have been an adult of sound mind, and it needs to be your current version, with the signed original findable. Meet those, and your will is valid. A notarized "self-proving affidavit" is optional but makes it easier to accept in court.