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Most estate planning mistakes aren’t dramatic — they’re small oversights that seemed reasonable at the time and turn into real problems years later, usually at the worst possible moment for the family left to sort them out. Here are five of the most common ones we see.

1. Never Funding the Trust

Creating a revocable living trust is only half the job. The trust only controls, and only avoids probate for, assets that are actually retitled into its name — real estate deeds transferred, bank and investment accounts retitled, business interests assigned. We regularly meet families who paid for a trust years ago and never completed this step, meaning their estate still has to go through the exact probate process the trust was meant to avoid.

2. Outdated Beneficiary Designations

Retirement accounts, life insurance policies, and payable-on-death bank accounts pass directly to whoever is named as beneficiary — regardless of what your will or trust says. An ex-spouse, a beneficiary who has since passed away, or a designation made decades ago before children were born can override even a carefully updated estate plan. These forms should be reviewed every few years and after every major life event.

3. No Plan for Incapacity

A will only takes effect after death. Without a durable power of attorney and an advance health care directive in place, a period of incapacity — from an accident, illness, or dementia — can force your family into a court-supervised conservatorship just to pay your bills or make medical decisions on your behalf. This is one of the most overlooked pieces of a complete estate plan.

4. DIY Documents That Don’t Match California Law

Generic templates and online will-writing services often don’t account for California-specific requirements — witness and notarization rules, community property considerations for married couples, or how the document interacts with property already held in joint tenancy. A document that isn’t properly executed under California law can be challenged or invalidated entirely, sometimes leaving your estate to pass under intestacy rules instead of your actual wishes.

5. Never Updating the Plan

An estate plan drafted ten or fifteen years ago may no longer reflect your family, your assets, or your wishes. Marriages, divorces, births, deaths, a move to or from California, a sold business, or a significant change in asset value are all reasons to revisit your plan. We generally recommend a review every three to five years, and sooner after any major life change.

Why These Mistakes Are So Common

Estate planning often gets treated as a one-time task — sign the documents, file them away, move on. But an estate plan is a living framework that needs to be maintained alongside the rest of your financial life. The families who avoid these pitfalls are usually the ones who treat their plan as something to revisit, not something to set and forget.

Work With a Torrance Estate Planning Attorney

At U. Khan Law Firm, APC, we help California families build estate plans that hold up — and we help clients review and fix plans that were created elsewhere and never properly finished or updated. Contact our Torrance office to schedule a review.

This article is provided for general informational purposes only and does not constitute legal advice. Please consult a licensed California attorney regarding your specific estate planning needs.