Marriage does not automatically override a trust, but it creates legal rights that can reach into trust assets in ways many people don’t expect. Whether marriage overrides a trust depends on the type of trust, when it was created, how it was funded, and whether the spouses signed anything waiving those rights. A revocable trust holding most of your wealth offers almost no protection against a new spouse’s statutory claims. An irrevocable trust created years before the wedding and funded entirely with pre-marital assets is much harder to reach. Retirement accounts follow their own rules, and those rules usually favor the spouse.
How a Surviving Spouse Can Claim Against a Trust
The most direct way marriage reaches a trust is through the elective share. In most states that don’t follow community property rules, a surviving spouse has a statutory right to claim a percentage of the deceased spouse’s estate no matter what the will or trust says. If a trust leaves the surviving spouse nothing or almost nothing, the spouse can “elect against” the trust and take the statutory share instead.
The percentage varies. States following the Uniform Probate Code use a sliding scale tied to the length of the marriage, starting at 3% of the augmented estate after one year and climbing to 50% after fifteen years or more. Other states set a flat share, often one-third or one-half. What matters most is which assets get counted.
The Augmented Estate
Many states don’t limit the elective share to assets that pass through probate. They calculate an “augmented estate,” which pulls in nonprobate transfers including revocable trust assets, joint accounts, and life insurance payable to someone other than the spouse. The purpose is to prevent someone from routing everything into a revocable trust and claiming the probate estate is empty.
The practical consequence: a revocable living trust, standing alone, generally cannot defeat a spouse’s elective share. If the trust holds most of the wealth and the surviving spouse receives little from it, the spouse elects against the estate and the trust assets get pulled into the calculation. Irrevocable trusts created well before the marriage and funded entirely with pre-marital assets are harder for a spouse to reach, though the specifics depend on state law.
Waiving the Right to Elect
A spouse can give up elective share rights, but only through a properly executed agreement. A prenuptial or postnuptial agreement that explicitly waives “any and all rights” to the other spouse’s property will usually satisfy the waiver requirements. The agreement needs full financial disclosure, must be signed voluntarily, and must comply with state law. Without that waiver in writing before the death, the surviving spouse keeps the right to elect.
Community Property States Work Differently
Nine states follow community property rules, and they take a fundamentally different approach. In these states, income and property acquired during the marriage belong equally to both spouses. Community property states generally don’t use an elective share system because the equal-ownership principle already protects each spouse.
A trust funded with assets acquired before the marriage is typically treated as separate property and stays outside the community estate. Problems begin when those assets generate income during the marriage, or when separate and community funds are mixed together in the same trust. Once commingling happens, courts may reclassify some or all of the trust assets as community property. Judges look at the source of trust funding, whether community income was deposited into the trust, and whether the trust was structured to get around marital property rights.
If you bring an existing trust into a marriage in a community property state, keep detailed records separating trust income from marital earnings. The moment community funds flow into the trust, you risk changing its character.
Retirement Accounts Follow Their Own Rules
Retirement accounts are where marriage most forcefully overrides prior planning, and many people find this out too late. Federal law, not state law, controls who inherits most employer-sponsored retirement plans.
ERISA Spousal Consent
Under ERISA, your spouse is the default beneficiary of your 401(k), pension, and most other employer-sponsored retirement plans. If you want to name anyone else, including your trust or a child from a prior marriage, your spouse has to consent in writing. That consent must acknowledge the effect of the election and be witnessed by a plan representative or notary public.1Office of the Law Revision Counsel. 29 U.S. Code 1055 – Requirement of Joint and Survivor Annuity and Preretirement Survivor Annuity No amount of trust drafting overrides this. Name your trust as beneficiary of a 401(k) without obtaining spousal consent, and the plan will pay the benefits to your spouse anyway.
ERISA’s reach preempts state community property laws. The Supreme Court held in Boggs v. Boggs that ERISA prevents a predeceasing spouse from transferring pension plan interests through a will or trust under state community property rules. The named beneficiary on the plan controls, and federal law overrides any conflicting state property claim.2Legal Information Institute. Boggs v. Boggs, 520 U.S. 833 (1997)
IRAs are different. Traditional and Roth IRAs are not ERISA-governed plans, so you can generally name any beneficiary without spousal consent, although some states impose their own spousal protection rules on IRAs. This distinction catches people off guard when they assume all retirement accounts work the same way.
Naming a Trust as Beneficiary
Naming a trust as beneficiary of a retirement account adds complexity beyond spousal consent. Under the SECURE Act, most non-spouse beneficiaries must withdraw the entire account within ten years of the account owner’s death. A trust is not an “eligible designated beneficiary,” so it does not qualify for the lifetime stretch that a surviving spouse or minor child would receive.3Internal Revenue Service. Retirement Topics – Beneficiary The compressed timeline can create a large and unexpected tax hit for the trust’s beneficiaries.
Revocable Trusts Offer Little Protection; Irrevocable Trusts Offer More
The type of trust matters enormously when working out how marriage affects it.
A revocable trust gives you full control during your lifetime. You can amend it, add your new spouse as a beneficiary, change distribution terms, or revoke it entirely. That flexibility is the upside. The downside is that because you kept control, the law treats the trust assets as still belonging to you. Revocable trust assets are almost always included in the augmented estate for elective share purposes and are reachable by a surviving spouse’s claim.
An irrevocable trust is harder for a spouse to penetrate. Once you transfer assets into an irrevocable trust, you generally give up control over them. Because the assets no longer belong to you, they are less likely to be counted in your estate for elective share calculations, and a new spouse typically cannot claim them. The trade-off is that you also cannot easily add your spouse as a beneficiary or change the terms if your circumstances shift.
One important caveat. An irrevocable trust created shortly before or during the marriage, especially one funded with what would otherwise be marital assets, invites scrutiny. Courts can treat such transfers as voidable if the trust appears designed to defeat a spouse’s legitimate claims. The strongest trusts in later litigation are irrevocable, created years before the marriage, funded exclusively with pre-marital assets, and never commingled with marital funds. Each deviation from that profile gives a challenging spouse more leverage.
A specialized alternative exists for blended families. A qualified terminable interest property trust, or QTIP, pays income to the surviving spouse for life while preserving the principal for other beneficiaries, such as children from a prior marriage. QTIPs are commonly used in second marriages to provide for a current spouse without disinheriting children from the first.4Office of the Law Revision Counsel. 26 U.S. Code 2056 – Bequests, Etc., to Surviving Spouse
Prenuptial and Postnuptial Agreements
A prenuptial agreement is the most reliable way to define how marriage will interact with an existing trust. Without one, state law defaults apply, and those defaults almost always favor the spouse over the trust’s intended beneficiaries.
A well-drafted prenup can designate trust assets as separate property, waive each spouse’s elective share rights, specify whether trust income earned during the marriage is separate or marital property, and address how new trusts created during the marriage will be treated. Courts have upheld these provisions even in community property states, as long as the agreement was properly executed.
Enforceability requirements are consistent. Both parties need full financial disclosure of their assets and liabilities. The agreement has to be signed voluntarily, not under pressure days before the wedding. The terms cannot be so one-sided that a court would find them unconscionable. Independent legal counsel for each party is not universally required, but a spouse who signed without any attorney representation has a much stronger argument that the agreement should be thrown out. Separate counsel for each party is the single best insurance against a later challenge.
Postnuptial agreements can accomplish many of the same goals after the wedding, though courts tend to scrutinize them more closely because the parties are already in a relationship with inherent power dynamics.
What Happens to a Trust in Divorce
Divorce raises a different question about whether marriage overrides a trust. Courts do not automatically treat trust assets as marital property subject to division. They look at when the trust was created, who funded it, and how the assets were used during the marriage.
An irrevocable trust created and funded by a third party, such as a parent, for the benefit of one spouse generally receives the strongest protection in divorce. The beneficiary spouse doesn’t own the trust assets, so they’re typically not divisible. But income distributions the spouse actually received during the marriage are often treated as income for purposes of calculating alimony or child support. And if trust distributions were regularly used to fund the couple’s lifestyle, a court may consider the trust a resource even when it cannot divide the principal directly.
Trusts created by one spouse during the marriage, funded with marital income, are much more vulnerable. A court is likely to view those assets as marital property that was simply placed in a different container. A trust created shortly before a divorce filing may be treated as a fraudulent transfer, an attempt to hide assets from equitable distribution.
Both spouses are generally required to disclose trust interests during divorce proceedings. Trust instruments and financial statements are typically discoverable, though internal trustee deliberations and letters of wishes may be protected.
Updating a Trust After You Marry
Marriage is a moment to revisit your trust documents. If you already have a revocable trust, amending it is straightforward. As the grantor, you can add your spouse as a beneficiary, adjust distribution percentages, or restructure the trust entirely. Most revocable trusts include a provision explaining the amendment process, which typically requires a written document signed by the grantor. This review is exactly what should happen after a wedding to make sure the trust reflects your current wishes.
Irrevocable trusts are harder to change. In many states that have adopted the Uniform Trust Code, an irrevocable trust can be modified if the settlor and all beneficiaries consent, even when the modification conflicts with the trust’s original purpose. If not all beneficiaries agree, a court may still approve the change as long as the dissenting beneficiary’s interests are adequately protected. Trust decanting, available in over 40 states, allows a trustee to transfer assets from an existing irrevocable trust into a new trust with modified terms, but it generally cannot add entirely new beneficiaries who weren’t contemplated in the original trust.
The intersection of trust law and family law is where most planning mistakes happen, and fixing them after a death or divorce filing is far more expensive than getting them right in advance. If you’re creating or modifying a trust with marriage on the horizon, working with an attorney who handles both areas is worth the cost.