Administering a Joint Trust When the First Spouse Dies in California

When your spouse dies, the trust can wait. Your first priority is to get through the shock, bring your family close, and hold a memorial service if you want one. The only estate matters that need attention right away are making sure you can still reach your bank and investment accounts to pay the bills, and ordering at least ten certified death certificates from the funeral home. Everything else can wait a few weeks.

The first few things, once you have the death certificates

A handful of early items need handling in the first weeks.

• Notify the Social Security Administration. If you used a funeral home, they usually report the death when they order the certificates. Confirm it was done.
• Call your financial advisor about your spouse's retirement accounts. You will likely roll them over, and when you do, name new beneficiaries, usually your children. More on this below, because the timing on retirement accounts has real tax consequences and you should not rush it.
• Call your life insurance agent to start the death benefit claim on any policy on your spouse's life.

• Then call your estate planning attorney. She will walk you through the rest. With a joint living trust, which is what most married California couples have, there are a few formal steps, and the attorney handles most of them:

  • Lodging your spouse's will with the local probate court, and

  • Submitting the notice of death to the California Department of Health Care Services.

What happens to your spouse's share

Your joint trust has a provision that controls what happens to your deceased spouse's share of the assets. That share is your spouse's half of the community property, plus any separate property he owned. Your trust will handle it in one of three ways:

1. All to the survivor's trust, for your benefit.

2. All to the survivor's trust, with an option for you to disclaim some or all of your spouse's share into a separate irrevocable trust.

3. Mandatory funding of a marital trust with your spouse's share.

Most joint trusts written in the last ten years use option one or two. The attorney who is helping you with the trust administration can tell you which kind you have.

Option one: all to the survivor's trust

This is the simplest. At the first death, all of the trust assets flow into the survivor's trust, and you control everything.

A joint trust has two owners, two trustees, and two lifetime beneficiaries: you and your spouse. When the first spouse dies, the joint trust becomes an individual trust. Most or all of the assets fund the survivor's trust, and just like the joint trust, the survivor's trust is revocable by you. You can amend it and change the terms, including the successor trustees and the beneficiaries.

That flexibility is usually a good thing. Assets change. Families change. The people you named to manage things for you may move out of state, fall out of favor, get too old, or die, and you need to make changes.

Option two: the disclaimer trust

We use the disclaimer option for most of our joint trusts. With the disclaimer option, after your spouse dies, you decide whether to fund a separate irrevocable trust (called the bypass trust) with some or all of his share, or to let it all flow into your survivor's trust where you keep full control.

The simplest and most common route is to do nothing, and let your spouse's share pass into the survivor's trust along with your own share. No separate bypass trust.

If instead you choose to disclaim part of your spouse's share, the disclaimed portion funds a bypass trust. A disclaimer is a formal no-thank-you, which results in your deceased spouse’s share funding the bypass trust. In most cases, you will still have access to the bypass trust assets, as trustee and beneficiary, but you cannot change who gets the remainder when you die. The IRS has set a deadline to make the disclaimer within nine months of the date of death.

Back in the day, the bypass trust was used to preserve the deceased spouse’s estate tax exemption. Not necessary under the current estate tax law. Now it is used for very large estates, or when the survivor wants creditor protection for her spouse’s share.

Should you disclaim? Usually not, in 2026

Under the current estate tax law, most surviving spouses will not disclaim, and by default, the deceased spouse’s share will flow into the survivor’s trust.

There is also a tax cost to disclaiming. Assets you keep in your survivor's trust get a second step-up in basis when you die. Assets locked into a bypass trust do not get that second step-up. For most families, the lost step-up can be expensive if you outlive your spouse by many years.

Option three: the mandatory marital trust, and when to write one in

The third option removes the choice. The trust directs that your spouse's share must fund a marital trust, either a bypass trust or a QTIP trust, rather than your survivor's trust. That trust is irrevocable, and its remainder beneficiaries cannot be changed.

Why would anyone give up that flexibility on purpose? Blended families. Picture a second marriage where each spouse has children from before. With an all-to-survivor trust, the surviving spouse could later amend everything to favor her own children and cut out her late husband's kids. A mandatory marital trust prevents that. By directing the deceased spouse's share into an irrevocable trust with locked remainder beneficiaries, it makes sure the children he intended to provide for actually inherit. Attorneys sometimes add a co-trustee to the marital trust as well, so the survivor cannot quietly drain it and move all the distributed funds to the survivor’s trust.

The flip side: if your trust has a mandatory A/B provision and you are not a blended family, it may now be doing more harm than good. Many older California trusts, especially those signed before about 2012, contain mandatory bypass provisions written when the estate tax exemption was a fraction of what it is today. They force a split that no longer saves estate tax for most families, they cost the survivor the second step-up on the bypass assets, and they saddle the survivor with a separate irrevocable trust to administer and file taxes for, for the rest of her life. If that describes your trust, it can often be fixed, through trust modification or other planning solutions.

Here is our recent article on the tax problems of a bypass trust and what to do about it.

The trust administration tasks

Once the decision about your spouse's share is made, the rest of the administration is a checklist your attorney works through with you.

• Record an affidavit of death of trustee for any real property. This is a document filed with the county recorder, along with a certified death certificate, that shows the public record your spouse has died and that you now hold authority over the trust's real estate as surviving trustee. This is needed if you ever refinance or sell the property.
• Confirm that title to the trust assets now reflects you as the sole trustee.
• For any assets not held in the trust, confirm title is in your name.
• Review and update your beneficiary designations on every IRA, retirement plan, annuity, and life insurance policy. If your spouse was your only named beneficiary, you now need to name new ones, usually your children. If you fail to name beneficiaries, the accounts may have to go through probate when you die. The rules differ by account type. See our post on naming a trust as your IRA beneficiary.

Updating your estate plan

Most surviving spouses will want to refresh their documents after the first death. With your spouse gone, you may want to name your children as the successor trustees of your survivor's trust, as executors of your pour-over will, and as your agents under your durable power of attorney and your advance health care directive and HIPAA authorization.

How We Work

Clark Allison has handled California estate planning and trust administration for nearly 30 years. It is the only thing we do. When a spouse dies, you work directly with one of our attorneys from the first call through the final administration. No paralegal running your file, no handoff to a case manager. The attorney you talk to is the attorney who does the work, and the one you call later when something changes.

We handle trust administration throughout California. You do not have to come to an office. We can do the entire process with you by phone and Zoom, from wherever you are. Families in the Sacramento region are also welcome to work with us in our El Dorado Hills or Roseville offices.

Our trust administration fees are quoted before any work begins, so you know what it costs at the start. See our pricing page for how we handle fees, and our trust administration page for what the full process looks like.

Frequently Asked Questions

Do I have to do anything with the trust right away?

No. Order at least ten certified death certificates and make sure you can still pay the bills from your accounts. Everything else can wait a few weeks until you are ready to call your attorney. The main deadline to be aware of is the nine-month window to make a qualified disclaimer, if your trust gives you that option and you decide to use it.

Should I disclaim assets into a bypass trust?

Usually not, for most families in 2026. The federal estate tax exemption is high and portability lets you carry over your spouse's unused exemption, so the estate-tax shelter the bypass trust provides is often unnecessary. Meanwhile, keeping assets in your survivor's trust preserves a second step-up in basis at your death that a bypass trust gives up. For larger estates or specific family goals it can still make sense.

My trust has a mandatory A/B split and we are not a blended family. Can it be fixed?

Often, yes. Older California trusts frequently contain mandatory bypass provisions written when the estate tax exemption was far lower, and that forced split now tends to cost families the second step-up without saving any estate tax. Depending on the trust, it may be addressed through trust modification or other tools. Because some choices tied to the first death carry their own deadlines, talk to an attorney sooner rather than later.

Will the whole administration be done remotely?

It can be. We handle California trust administration by phone and Zoom for clients anywhere in the state, with documents signed and notarized remotely. You do not have to drive to an office to settle your spouse's trust.

Related Reading

• Trust Administration in El Dorado Hills and Folsom: A Guide for Successor Trustees
• Proposition 19 and Your California Home: A Complete Guide
• Should Your California Living Trust Be the Beneficiary of Your IRA?
• Trust Administration (service page)

Get Started

Call us at (800) 394-1988 or click Get Started to schedule a free intro call. We will tell you what needs to happen now, what can wait, and what it will cost, before any work begins.

We handle California trust administration throughout the state from our El Dorado Hills office, our Roseville office, and virtually from anywhere in California.