How a Simple Estate-Planning Mistake Can Reroute Your Inheritance

A single clerical error or outdated document in your estate plan can legally transfer your wealth to someone you never intended — and your family may have no recourse once you're gone. Estate-planning attorneys warn that most inheritance disasters trace back not to complex legal failures but to routine, easily preventable missteps that go unnoticed until it's too late.

The most common culprit is a neglected beneficiary designation. Retirement accounts, life insurance policies, and payable-on-death bank accounts all pass outside of a will entirely, governed solely by whoever is named on the account form. That means an ex-spouse, a deceased relative, or even a blank field can override every instruction in a carefully drafted will — because the designation form is the legally binding document, not the will itself.

Read more 30-Year Mortgage Rate Surge Puts 8% Back on the Table →

Life transitions are where the danger compounds. Marriage, divorce, the birth of a child, or the death of a previously named beneficiary are all moments that demand an immediate review of every account on file. Many people update their wills after such events but forget to update the individual account forms at their bank, brokerage, or insurer — leaving a dangerous mismatch between their stated wishes and the legal record.

Experts recommend a full beneficiary audit at least once every few years and after any major life event. The process is straightforward: contact each financial institution, request a copy of the current designation on file, and update it in writing if anything is outdated or incorrect. Naming both primary and contingent beneficiaries adds another layer of protection in case a first choice predeceases the account holder.

Estate-planning crises are rarely the result of elaborate legal disputes — they are almost always the product of small, fixable oversights that were never addressed in time. Continue reading at MarketWatch.com.