Most married couples do not create an estate plan expecting to die at the same time. You plan for one of you to die first, the other to continue managing the home, finances, and family, and eventually for the remaining assets to pass to your children or other beneficiaries.
That is the sequence most of us naturally picture. But what happens if you and your spouse die in the same accident? What if one of you survives the other by only a few hours or a few days? And what happens if no one can determine who died first?
These are uncomfortable scenarios to think about, but they raise very practical California estate planning questions. The order of death can affect which provisions of your trust apply, who ultimately receives your assets, whether property becomes part of the surviving spouse’s estate, and whether an additional estate administration or probate may be necessary.
The answer is not simply, “Everything goes to the spouse who lived longer.” Your estate planning documents, the way your assets are owned, your beneficiary designations, and California law all have a role.
This is why, when I create or review an estate plan for a married couple, I want the plan to address not only what happens at the first death and the second death, but what happens when those deaths occur very close together.
What Happens If Spouses Die at the Same Time or Only Days Apart?
Consider a fairly common estate plan. A married couple has a joint revocable living trust. When the first spouse dies, the plan provides for the surviving spouse. After the surviving spouse later dies, the remaining assets pass to the children.
Now change one fact.
Instead of the surviving spouse living another 10 or 20 years, the spouse dies two days later.
Depending on how the trust is written, those two days may or may not change who ultimately inherits the assets.
Many trusts contain a survivorship clause requiring a beneficiary to survive the person who died for a certain period before being entitled to receive an inheritance. A trust might require the surviving spouse to live for 30 days after the first spouse’s death, for example.
If the spouse does not survive for the required period, the trust may treat that spouse as having died first for purposes of the distribution. The assets would then pass under the trust’s alternate provisions rather than first passing to the spouse and then through the spouse’s estate plan.
If there is no applicable survival period and the spouse does survive, even briefly, the result can be different. Certain property may pass to the surviving spouse and then need to be administered again when the surviving spouse dies shortly afterward. Whether that results in additional probate or trust administration depends on the asset, how it was owned, and the governing documents.
This is where the details matter. Two estate plans that look similar at first glance can produce very different results because of a few sentences in the trust.
A Survivorship Clause Can Determine Which Family Ultimately Inherits
A survivorship clause in a California trust or will generally establishes how long a beneficiary must survive before receiving a particular gift or inheritance.
There is no single survival period that is right for every family. Some estate plans use 30 days. Others use a different period depending on the family structure, the assets involved, tax considerations, and what the clients actually want to accomplish.
The purpose is not simply administrative convenience. The survival period can determine which beneficiary receives the property.
Suppose your trust says your spouse must survive you by 30 days. You die first, and your spouse dies ten days later. If the provision applies as intended, your spouse may be treated as having predeceased you for purposes of that distribution, and the assets would pass to the beneficiaries named to receive them if your spouse does not survive you.
Now imagine the trust contains no such requirement. Your spouse survives you by ten days, receives certain property, and then dies. That property may now pass according to your spouse’s estate plan.
For a couple with the same children and the same ultimate beneficiaries, the practical difference may be relatively small. For other families, it can be enormous.
California’s 120-Hour Rule Is Not a Universal Rule for Every Estate Plan
One area that causes confusion is California’s 120-hour rule.
Under California Probate Code section 6403, a person generally must survive a decedent by 120 hours, or five days, to inherit through California’s intestate succession laws. If the required survival cannot be established by clear and convincing evidence, that person is treated as having predeceased the decedent for purposes of intestate succession.
But that does not mean every California trust, will, retirement account, or life insurance policy automatically has a five-day survivorship requirement.
Your estate planning documents may contain their own survival provisions. Different rules may also apply depending on the type of asset and how the transfer is structured.
California also has separate simultaneous-death rules for circumstances in which it cannot be established by clear and convincing evidence that one person survived another. In that situation, California Probate Code section 220 generally provides that each person’s property is administered as though that person survived the other.
That may sound similar to a 120-hour rule, but legally they are not the same thing. One addresses a required period of survival in a particular context. The other addresses what happens when the order of death cannot be established.
This is one reason I would not want a family relying on a general rule they found online. We need to look at the actual estate planning documents and the particular assets involved.
A Joint Living Trust Does Not Control Everything You Own
Couples sometimes assume that once they have a joint revocable living trust, the trust answers every question about what happens when they die.
It may answer many of them, but not necessarily all of them.
Your home and investment accounts may be titled in your trust. Your retirement accounts usually are not. Your life insurance may have its own beneficiary designation. You may have payable-on-death or transfer-on-death accounts, jointly owned property, business interests, or assets that were never transferred into the trust.
Each of those assets has to be considered as part of the overall estate plan.
For example, suppose your trust requires your spouse to survive you by 30 days, but your life insurance policy simply names your spouse as the primary beneficiary and your children as contingent beneficiaries. If you and your spouse die close together, the trust’s 30-day provision does not automatically rewrite the insurance company’s beneficiary designation.
California even has a specific rule addressing life insurance when the insured and beneficiary have both died and it cannot be established that the beneficiary survived the insured. Probate Code section 224 generally treats the insured as having survived the beneficiary, subject to an exception involving certain community property policies.
The same general planning issue arises with retirement accounts. The beneficiary designation on the account matters. So do the terms of the retirement plan and federal law.
This is why I spend time reviewing beneficiary designations and asset ownership as part of the estate planning process. A trust cannot accomplish what you intend if the assets outside the trust are pointing in a different direction.
The Issue Becomes Even More Important for Blended Families
When one or both spouses have children from a prior relationship, survivorship planning deserves even more attention.
Suppose a husband has two children from a prior marriage and his wife has two children from hers. They want to take care of each other, but they also want to make sure that each side of the family ultimately receives the inheritance they intended.
The husband dies first. His wife survives him by two weeks and then dies.
Does his property pass first to her and then under her estate plan? Or does his trust treat her as having predeceased him because she did not survive the required period, causing his assets to remain under his plan for his beneficiaries?
Those outcomes can be dramatically different.
Neither is automatically the correct answer. Some couples want the surviving spouse to receive the assets even if the survival period is very short. Others want property to remain on the first spouse’s side of the family if the spouses die close together. Still others want different rules for separate property, community property, life insurance, retirement accounts, or particular assets.
The job of the estate plan is to reflect the couple’s decision before anyone is trying to figure it out after both spouses have died.
The same concerns can arise outside of a blended family. One spouse may have inherited family property. A child may have special needs. There may be grandchildren the couple specifically wants to protect, charitable gifts they want to preserve, or different beneficiaries for particular assets.
There is no reason those decisions should be left to a default rule if you already know what you want.
A 2026 California Case Shows Why the Exact Words Matter
A recent California appellate decision provides a useful reminder that survivorship provisions are not meaningless boilerplate.
In In re Tung Trust, decided in June 2026, a trust included language stating that if a beneficiary failed to survive the settlor by 30 days, the beneficiary would be considered to have predeceased the settlor. One of the settlor’s children died before her, leaving children of his own. The dispute was whether the deceased son’s children could inherit in his place under California’s anti-lapse statute.
California Probate Code section 21110 generally allows certain descendants of a deceased beneficiary to step into that beneficiary’s place unless the estate planning document expresses a contrary intention or provides a substitute disposition. The statute specifically recognizes that an actual requirement that a beneficiary survive the person making the transfer, or survive for a specified period, can show that contrary intent.
The Court of Appeal concluded that the wording in the Tung Trust did not clearly create the survival requirement necessary to defeat California’s anti-lapse statute. Simply saying that someone would be “considered to have predeceased” the settlor was not enough, in the context of that trust, to produce the result the trustee argued for.
The case did not involve spouses dying at the same time, but the planning lesson is directly relevant. The exact words in a trust matter.
A provision should not be in your estate plan simply because it appeared in a form or because it is customary language. We should understand what the provision is intended to accomplish, how it works with the rest of the trust, and whether it actually produces the result you want.
Your Beneficiary Designations Need to Tell the Same Story as Your Trust
One of the easiest ways for an estate plan to produce an unintended result is for the legal documents to say one thing while the beneficiary designations say something else.
When I review an estate plan, I want to know not only who your trust names after you and your spouse are gone, but who is named on the retirement accounts, life insurance policies, and other assets that pass by beneficiary designation.
If your spouse is the primary beneficiary, who is next?
Is it your children individually? Your trust? A separate trust created for your children? Different beneficiaries altogether?
And if your spouse dies shortly after you, will those beneficiary designations produce the same result you intended when we drafted the trust?
These are not separate planning questions. Your family experiences your estate as one financial reality, even though the law may treat the house, trust accounts, IRA, life insurance, business, and other assets differently.
A well-coordinated California estate plan takes all of those pieces into account.
What Should Married Couples Review in Their Estate Plan?
If you already have an estate plan, you do not need to start making changes simply because you read about simultaneous death or survivorship clauses. But it is worth understanding what your existing plan says.
Look at what happens when the first spouse dies and then look at what happens if the surviving spouse dies very shortly afterward. Find the survivorship provision in your trust and will. Determine whether your documents require a spouse or another beneficiary to survive for a particular period.
Then look beyond the documents.
Who is named on your retirement accounts and life insurance? What happens if your primary beneficiary does not survive you? Are your contingent beneficiaries still the people you want? Does your trust own the assets you intended it to own? If you have children from a prior relationship, does the plan protect both your spouse and your children in the way you expect?
If you cannot easily answer those questions, that does not necessarily mean there is something wrong with your estate plan. It means the plan is worth reviewing.
Estate planning is not simply about having a trust in a binder. It is about knowing what will actually happen to the people and assets you care about when life does not unfold in the order you expected.
Your Family Should Not Have to Figure This Out After Two Losses
If spouses die at the same time or within days of each other, their family is dealing with an extraordinary amount at once. That is not when I want children, trustees, or other loved ones trying to decipher who was supposed to inherit what or discovering that the beneficiary designations do not match the trust.
This is part of what we address through Life & Legacy Planning®. I look at the entire picture: your family, your trust and will, how your assets are owned, your beneficiary designations, the people you have chosen to step in, and what you want to happen if the unexpected occurs.
We also keep the plan current. Families change. Assets change. Relationships change. The law changes. A plan that made perfect sense ten years ago may no longer reflect your life today.
If you have an existing estate plan and are not sure what would happen if you and your spouse died at the same time or close together, we can review it and walk through the actual result. If you are creating a new plan, we can build those decisions into the plan from the beginning.
Planning for the people you love means thinking through more than the most likely scenario. It means creating clear instructions for the situations you hope never happen, so your family is not left guessing if they do.
To learn more about creating or reviewing your California estate plan, contact Cheever Law or schedule a 15-minute introductory call.