© 2026 SimplyTrust Software Inc.
Learn about witness requirements for wills and estate planning documents. Understand how witnesses help validate legal documents and protect your family's in...
Most states require two witnesses for a valid will, though some states allow just one witness or have specific requirements for self-proving wills. Each witness must be at least 18 years old, mentally competent, and ideally not beneficiaries of the will to avoid potential conflicts of interest.