Estate Planning for Married Couples: 2026 Joint Framework

A practical guide to wills, trusts, beneficiary designations, and how the permanent $15M estate exemption changes the calculus for married couples. Not legal advice — your specifics matter.

Why estate planning is different when you're a couple

Single people have one balance sheet and one beneficiary structure. Couples have two of each — and a set of legal mechanisms that only exist because of the marriage. The decisions compound on each other:

• Who owns the house, and how? (JTWROS vs. tenants in common vs. community property — each has different death consequences)
• Do your IRA and 401(k) beneficiary designations match your actual wishes, and did you update them after the wedding?
• If one spouse dies suddenly, can the other immediately access the accounts they need to pay bills?
• Are any children from prior relationships accounted for?
• Do you each have a durable power of attorney, so the other can legally manage finances if one is incapacitated?

None of these questions require a $15 million estate to matter. A couple in their 30s with a house, two 401(k)s, and a toddler has estate planning risk today.

The $15M exemption — what it means for couples in 2026

Starting in 2026, each spouse has a $15 million federal lifetime gift and estate tax exemption. For a married couple, that's $30 million combined that can pass to heirs without federal estate tax.¹ The OBBBA made this permanent and inflation-indexed — eliminating the sunset risk that had dominated estate planning conversations since 2018.

The unlimited marital deduction (IRC §2056) still applies: assets passing between U.S.-citizen spouses at death are not subject to estate tax regardless of amount. This is a different mechanism from the $15M exemption — you're not "using up" exemption when you leave assets to your spouse. But there's a planning trap here: if everything passes to the surviving spouse, their estate can grow large, and the exemption of the first-to-die goes unused unless portability is elected.

Portability — the most overlooked tool for married couples

When the first spouse dies, any unused portion of their $15M federal exemption can be transferred to the surviving spouse. This is called the deceased spouse's unused exemption (DSUE), and it's only available if the estate of the first-to-die files a federal estate tax return (Form 706) electing portability — even if no estate tax is owed.

Filing Form 706 to preserve portability is cheap insurance even for couples well under the exemption threshold — estate values can grow significantly between the first and second death, especially for younger spouses. Talk to an estate attorney about the current extended deadline rules for late portability elections.

Annual gifting — reducing the estate before death

Each individual can give up to $19,000 per recipient per year in 2026 without it counting against their lifetime $15M exemption or requiring a gift tax return.² A married couple can give $38,000 per recipient per year via gift-splitting.

Practical applications for couples:

• Annual gifts to adult children or grandchildren ($19,000 each from each spouse = $38,000 per child per year)
• Direct payment of tuition to educational institutions (no limit — separate from the annual exclusion)
• Direct payment of medical expenses (no limit — separate from the annual exclusion)
• Superfunding a 529 — front-load up to 5 years of annual exclusion gifts ($95,000 per child from each parent) at once

For couples with non-citizen spouses: the annual gift exclusion to a non-U.S.-citizen spouse is $194,000 in 2026 (not unlimited, as it is for citizen spouses). The unlimited marital deduction does not apply to non-citizen spouses.

Joint titling — how you own assets determines what happens at death

How property is titled is as consequential as what you have in your will — and for jointly titled assets, often more so, because titling overrides the will.

The step-up in basis trap with JTWROS: When an asset passes to a surviving spouse, it receives a step-up in cost basis to its fair market value at the date of death (IRC §1014). For JTWROS property between spouses, only the deceased spouse's half gets stepped up in most states (all community property states step up 100%). This matters enormously for appreciated assets — a brokerage account with $800K in gains could generate a $190K+ capital gains tax bill if the surviving spouse doesn't get a full step-up.

Beneficiary designations — the layer most couples get wrong

Retirement accounts (401(k), IRA, Roth IRA), life insurance, and annuities pass by beneficiary designation, not by will or trust. This is the single most common estate planning error couples make: failing to update beneficiary designations after marriage, divorce, the birth of children, or the death of a named beneficiary.

What married couples should audit now:

• Primary beneficiary: Almost always each other for retirement accounts. But consider naming a trust as primary if you have children from a prior marriage.
• Contingent beneficiary: Who gets it if you both die? Name your children, a trust for them, or a charity — don't leave this blank (blank means probate).
• Per stirpes vs. per capita: If you name "my children" and one child predeceases you, does their share go to their kids (per stirpes) or the surviving children (per capita)? Specify it explicitly.
• Minor children as beneficiaries: Minors cannot directly receive large IRA or life insurance proceeds. Name a custodian under your state's UTMA or establish a trust — otherwise a court will appoint a guardian of the property.

Wills — what they do and don't control

A will controls the disposition of probate assets — property that doesn't pass by survivorship or beneficiary designation. For many couples, this is a smaller slice of the estate than they expect: JTWROS accounts pass by survivorship, IRAs pass by designation, life insurance passes by designation. What's left? Real estate in tenants-in-common form, brokerage accounts in solo name, personal property, and anything else without a designated recipient.

Even if most of your estate passes outside probate, you still need a will for:

• Guardianship for minor children — this can only be specified in a will. If you have children and no will, a court decides who raises them.
• Residuary clause — catching assets that weren't titled correctly or where beneficiary designations lapsed
• Executor designation — who administers the process

Trusts — when they still make sense at $15M+ exemption

The federal estate tax is largely a non-issue for most couples now. But trusts remain valuable for reasons that have nothing to do with estate tax:

• State estate taxes: Oregon, Massachusetts, Maryland, and several other states impose estate taxes with exemptions as low as $1M–$2M. A couple in Massachusetts with a $4M estate faces state estate tax even though they're well under the $15M federal threshold. A bypass trust (or disclaimer trust) can still double the state-level exemption.
• Creditor protection: Assets in certain irrevocable trusts are shielded from future creditors of the beneficiaries. JTWROS and outright inheritance are not.
• Protecting children from prior relationships: A marital trust (QTIP trust) allows the first-to-die to provide income for the surviving spouse while ensuring the remainder ultimately passes to children from a prior marriage — not to the surviving spouse's new partner.
• Incapacity management: A revocable living trust lets a successor trustee step in and manage assets immediately if you're incapacitated — without a court-supervised guardianship proceeding. Especially valuable for complex investment portfolios or real estate.
• Avoiding probate in multiple states: If you own real estate in two states, each state requires a separate probate proceeding (ancillary probate). A revocable trust avoids this.

Powers of attorney and healthcare directives — the documents most couples skip

Estate planning isn't only about what happens at death. Incapacity risk — the period where one spouse is alive but unable to manage their affairs — is statistically more likely than dying young.

• Durable financial power of attorney: Authorizes your spouse (or another named agent) to manage financial accounts, sign legal documents, and handle transactions if you're incapacitated. Without this, your spouse may need a court-appointed conservatorship to access even jointly-titled accounts.
• Healthcare power of attorney / healthcare proxy: Names who makes medical decisions if you cannot. Your spouse has legal standing to do this in most states by default, but formalizing it eliminates ambiguity and covers situations involving divorced or estranged family members who might otherwise intervene.
• Living will / advance directive: Documents your wishes regarding life-sustaining treatment, allowing your spouse to make decisions that match your actual preferences rather than guessing under pressure.

When to review your estate plan

Estate plans decay. Triggers that should send you back to an attorney:

• Marriage or divorce
• Birth or adoption of a child
• Death of a beneficiary or named executor
• Moving to a new state (especially to/from a community property state)
• Major change in asset values or inheritance
• Starting or selling a business
• Significant change in tax law (the OBBBA in 2025 is exactly this)

Sources

1. IRS — Tax inflation adjustments for tax year 2026 (OBBBA). $15M estate and gift tax exemption, permanent and inflation-indexed per OBBBA.
2. IRS — Frequently asked questions on gift taxes. Annual exclusion $19,000 per recipient in 2026; $194,000 to non-citizen spouse.
3. IRS — What's new: Estate and gift tax. Portability election rules, Form 706 requirements, marital deduction (IRC §2056).
4. IRS Publication 559 — Survivors, Executors, and Administrators. Step-up in basis under IRC §1014, inherited IRA rules, and estate administration.

Estate and gift tax values verified against IRS 2026 inflation adjustment release and OBBBA (One Big Beautiful Bill Act, July 2025). Annual gift exclusion $19,000 per recipient; estate exemption $15,000,000 per person. Inherited IRA rules reflect T.D. 10001 final regulations (IRS, July 2024) and SECURE 2.0 (2022).