When Is It Too Late to Create or Update Your Estate Plan?

Recently, I have fielded calls and attended meetings where my only answer was: it’s too late.
The circumstances almost always boil down to two scenarios—either the individual has passed away or they have lost legal capacity. When that happens, the menu of options available to a family shrinks dramatically.
Estate planning is a right the law grants you only while you have the capacity to understand what you are signing, and only while you are alive to sign it. Once either of those windows closes, the door to your legacy largely shuts with it—leaving your family to deal with an outdated plan or, worse, the default “plan” provided by California law.
There are two distinct scenarios where it is, in fact, too late.
1) When the Client Has Lost Capacity
To create or amend a will, trust, durable power of attorney, or advance health care directive, a person must have legal capacity. In California, this generally means understanding the nature and consequences of their actions—specifically, what assets they own, who their family members are, and how their decisions will affect those people.
When dementia, a stroke, a traumatic brain injury, or a similar condition takes that capacity away, the person can no longer legally sign new estate planning documents. It does not matter how clear their wishes were five years ago, how strongly the family agrees on what they “would have wanted,” or how urgent the need is. An attorney who drafts a document for someone lacking capacity is creating a document that invites a lawsuit—and one that a court will likely set aside.
At that point, the only paths forward require expensive and public court intervention.
Conservatorship
A family member or other interested person may petition the probate court to be appointed conservator of the person, the estate, or both. A conservator can manage finances, pay bills, sign tax returns, and make health care decisions for the conservatee. But a conservator’s powers are limited. A conservator generally cannot create a brand-new estate plan, and any “substituted judgment” planning under Probate Code § 2580 — for example, asking the court to fund a trust, change beneficiary designations, or make gifts on the conservatee’s behalf — requires a separate, evidence-heavy petition showing what the conservatee would have wanted.
Conservatorships are also public, expensive, and ongoing. They require court-supervised inventories, annual accountings, and bond, and they continue until the conservatee either recovers capacity or passes away. The cost in attorney’s fees, court fees, and bond premiums will certainly dwarf the cost of an estate plan, and often is more expensive than what the family would have spent on a probate administration.
Trust Modification by Court Order
If the incapacitated person already has a trust, a beneficiary or trustee may petition the court under Probate Code § 17200 to modify or terminate the trust in limited circumstances — for example, to fix a drafting error, to address changed circumstances the settlor did not anticipate, or, with the consent of all beneficiaries, under § 15403. Section 15409 also allows modification when continuing under the original terms would defeat or substantially impair the trust’s purpose.
These petitions are not a back-door way to rewrite the plan. Courts are protective of the settlor’s original intent and will not approve changes simply because the family wishes the document said something different. In practice, court-ordered modifications work best for fixing technical problems — not for adding a child who was left out, changing the trustee in a way the document does not authorize, or rewriting the dispositive scheme.
2) When the Client Has Died
The second hard stop is death. Once a person passes away, no further estate planning is possible for that person’s assets. The two consequences that hurt families the most are the loss of every meaningful tax-planning opportunity and the loss of the ability to avoid probate.
No More Tax Planning
Lifetime planning is where almost all of the meaningful tax work occurs. This includes:
- Step-up in Basis: Ensuring assets are structured to minimize capital gains taxes for heirs;
- Strategic Gifting: Utilizing the federal lifetime gift and estate tax exemptions.
- Minimizing or Avoiding Property Tax Reassessment?: Transferring real property to children before Proposition 19 reassesses it.
After death, those tools are off the table. While a surviving spouse may have limited post-death elections (like “portability”), these only work if the decedent’s plan was already structured to allow for them. Post-death elections cannot fix a plan that was never written.
Probate for Assets in the Decedent’s Name
Any asset the decedent owned individually, with no beneficiary designation and no transfer-on-death mechanism, is subject to probate if the value exceeds California’s small-estate threshold ($184,500 for deaths before April 1, 2025, and $208,850 for deaths on or after April 1, 2025). Probate in California typically takes nine to eighteen months and is governed by a statutory fee schedule.
The probate court file is also public. The inventory of the decedent’s assets, the names of the heirs, and the eventual distribution are all available for anyone to read.
Assets That Should Have Been in the Trust — But Weren’t
This issue comes up constantly. A client signs a trust, and then forgets to deed the house into it, or buys a new property and never updates title, or opens a brokerage account in their individual name. Those assets do not pass through the trust at death — they pass through probate, or, for amounts under the small-estate threshold, through a small-estate affidavit.
California law does provide one limited fix. Where there is written evidence that the decedent intended an asset to be held in their trust, the trustee can file a petition under Probate Code § 850 (often called a Heggstad petition, after Estate of Heggstad, 16 Cal. App. 4th 943 (1993)) asking the court to confirm the asset belongs to the trust. A successful Heggstad petition is faster and cheaper than a full probate, but it is still a court proceeding, with filing fees, and attorney’s fees that would not be necessary if the funding had been completed during life.
The Takeaway
Estate planning has a window, and the window closes faster than most people expect. A diagnosis you didn’t see coming, an accident, or simply the passage of time can take a comfortable “I’ll get to it next year” and turn it into “we missed our chance.”
If you have a plan, review it every three to five years and after every major life event — marriage, divorce, the birth of a child or grandchild, a death in the family, a significant change in assets, or a move to a new state.
If you do not have a plan, the best time to create one is now, while you have the capacity and the time to do it thoughtfully.
If you would like to put a plan in place, or update one that no longer reflects your life, please give us a call at (949) 371-5003 or contact Modern Wealth Law for a consultation.

Tiffany K. Chiu is a Partner at Modern Wealth Law, APLC. Tiffany is a skilled bilingual (Mandarin and English) estate planning attorney who caters to the needs of individuals, families, and small business owners in Orange County. She has extensive experience in drafting documents related to formation, financing, reorganization, conversion, and dissolution of joint ventures, partnerships, limited liability companies, and corporations.