A beneficiary designation form, not a will, is often the most important document for ensuring assets are properly distributed after death. Despite only 24% of Americans having a will, according to a 2025 Caring.com survey, experts stress that beneficiary forms determine where IRAs, 401(k)s and life insurance payouts actually go. CNBC's Sharon Epperson explains. Read more: cnb.cx/3Vy1XpE | CNBC