QTIP Trust Administration: A Successor Trustee's Guide to Marital Trusts

When the first spouse dies and their estate plan includes a QTIP trust — Qualified Terminable Interest Property — you may become its trustee. The surviving spouse receives mandatory income for life. The trust assets then pass to the remainder beneficiaries (typically the children) when the surviving spouse dies. Here is what being that trustee requires.

What is a QTIP trust and why was it created?

A QTIP trust is an irrevocable trust funded at the first spouse's death with assets that qualify for the federal estate tax marital deduction under IRC § 2056(b)(7).¹ The first spouse's executor makes the QTIP election on Form 706 (the estate tax return), which allows the estate to defer estate tax on those assets — passing the tax liability to the surviving spouse's estate instead.

QTIP trusts are used in several common situations:

• Blended family planning: A spouse can leave assets to the QTIP trust — providing income for the surviving spouse — while guaranteeing that the principal eventually passes to the deceased spouse's children from a prior relationship, not to the surviving spouse's family.
• Protecting a large estate from estate tax: By sheltering assets in a QTIP trust and claiming the marital deduction, the first spouse's estate avoids tax at the first death. Tax is deferred until the surviving spouse dies (or the trust is distributed to non-spouse beneficiaries, which would trigger immediate tax).
• Protecting a surviving spouse who may need help: The trustee manages the assets professionally, making required distributions but preserving principal — useful when the surviving spouse lacks investment experience or has cognitive concerns.

Since a QTIP election was irrevocably made on the estate tax return, the trust's terms are now fixed. The surviving spouse cannot change who receives the remainder. You, as trustee, must administer the trust as written — even if circumstances have changed or the structure seems inefficient today.

Your defining duty: mandatory income distribution

The legal requirement that makes a trust a "QTIP" trust is that the surviving spouse must receive all income from the trust, at least annually.¹ This is not optional and not discretionary — it is a mandatory term of the trust and a condition of the QTIP election itself. A trust that allowed income to be withheld from the surviving spouse would not qualify for the marital deduction under § 2056(b)(7).

What this means in practice:

• Every dollar of trust accounting income must be distributed to the surviving spouse — you cannot accumulate it in the trust.
• If you fail to make a required distribution, you have breached your fiduciary duty to the surviving spouse as the current income beneficiary.
• Missing required income distributions also creates an unnecessary tax cost: income retained in the trust is taxed at highly compressed trust rates (37% on income above $16,000 in 2026), while most surviving spouses pay tax at materially lower individual rates.²

Calculating trust accounting income

Knowing you must distribute "all income" is only half the answer. The other half: what counts as income? Trust accounting income and federal taxable income are not the same thing, and the difference matters.

Under traditional trust accounting rules (typically the Uniform Principal and Income Act, or UPAIA, as adopted in your state):³

• Income items: Interest, dividends, rents, royalties, and ordinary business distributions. These are distributable to the surviving spouse.
• Principal items: Capital gains (on most assets), proceeds from selling assets, insurance proceeds, and return-of-principal items. These stay in the trust and benefit the remainder beneficiaries.

In a low-interest-rate environment — or with a growth-oriented portfolio — trust accounting income may be very small. This creates a tension: the surviving spouse is entitled to income, but the trust's investments may generate mostly capital gains (which are principal, not distributable income).

The unitrust election: total return solution

Many states permit a trustee to convert the trust to a "unitrust" approach, paying the surviving spouse a fixed percentage of the trust's total value (typically 3–5%) annually, regardless of what the trust earned in interest and dividends.³ This allows a total-return investment strategy — holding growth assets instead of trying to generate high current income — while providing a predictable distribution to the surviving spouse.

The unitrust conversion requires court approval or beneficiary consent in most states, and the trust document may already authorize it. Check with the estate attorney before converting. If you invest the portfolio for growth and distribute only the meager accounting income, remainder beneficiaries benefit at the surviving spouse's expense — and you may be in breach of your impartiality duty.

Impartiality: the permanent tension in QTIP trust administration

As QTIP trustee, you owe fiduciary duties to two groups of beneficiaries whose interests fundamentally conflict:

• The surviving spouse (current income beneficiary) wants as much income as possible distributed to them for living expenses and lifestyle. They have no interest in principal growth that won't benefit them.
• The remainder beneficiaries (typically the children) want principal preserved and invested for maximum long-term growth. They want the trust to compound without being depleted by excessive distributions.

The Uniform Prudent Investor Act (UPIA) requires you to be impartial between current and future beneficiaries and to invest accordingly.⁴ This usually means:

• A balanced, total-return portfolio rather than a pure income-generating one (high-yield bonds, REITs, and preferred stock to maximize accounting income often sacrifice long-term growth unfairly).
• A written investment policy statement (IPS) that documents the trust's distribution obligation, time horizon (surviving spouse's life expectancy plus the remainder period), and the portfolio's target allocation.
• Annual review of whether the portfolio and distribution level remain appropriate as the surviving spouse ages and market conditions change.

See our trust investment policy guide for a framework on building a defensible IPS for a trust with income and remainder beneficiaries.

Principal distributions: what the trust document controls

Beyond the mandatory income distributions, many QTIP trust documents give the trustee discretion to distribute principal to the surviving spouse for specified purposes — typically for health, maintenance, and support (the HEMS standard). Some are narrower (health only). Some give the trustee no discretion to distribute principal at all.

There is one thing a QTIP trust document must not give the surviving spouse: a general power of appointment over principal. A general power of appointment (the right to demand principal for any reason, or to direct it to themselves or their estate) would cause the trust assets to be includable in the surviving spouse's gross estate under § 2041 — but could also jeopardize the QTIP election itself if the power was granted at creation rather than inherited.¹ The surviving spouse may have a limited power of appointment — e.g., the right to direct principal among the deceased spouse's descendants — which does not trigger § 2041 inclusion.

Before making any discretionary principal distribution, document:

• The applicable distribution standard from the trust document.
• The specific need or request that triggered the distribution.
• The amount distributed and how it meets the standard.
• The remaining principal balance after the distribution.

This documentation protects you against surcharge claims from remainder beneficiaries who may later argue you depleted their inheritance. See our trust distribution decisions guide for how to document distribution decisions correctly.

Form 1041: QTIP trusts file their own tax return

The QTIP trust is a separate taxable entity from the surviving spouse's personal finances and from any other trust in the estate. It requires:

• Its own EIN. Apply on IRS Form SS-4 or at IRS.gov immediately after the first spouse's death. Every account, brokerage statement, and tax filing must use this EIN, not the surviving spouse's social security number.
• Annual Form 1041 filings. Due April 15 each year, with a 5.5-month extension available to September 30.²
• Schedule K-1 for the surviving spouse. Every dollar of income you distribute to the surviving spouse is reported on a K-1, flows to the surviving spouse's Form 1040, and is taxed at their individual rate.
• Trust-level tax on any retained income. If for any reason income is retained rather than distributed — which would be unusual in a properly administered QTIP trust — that income is taxed at the compressed trust brackets: 37% above $16,000 in 2026.²

The distribution deduction (reported on Form 1041 Schedule B) allows the trust to deduct amounts distributed to the surviving spouse, shifting taxable income to the beneficiary. Because all QTIP income must be distributed, the trust will typically have minimal taxable income — but the mechanics of distributable net income (DNI) still control how much of the distribution carries out taxable income versus tax-exempt income or capital gains.

See our Form 1041 trustee guide for the full mechanics of trust tax filings, the 65-day election, and DNI calculations.

The step-up in basis at the surviving spouse's death

Unlike bypass trust assets — which are intentionally excluded from the surviving spouse's estate and therefore do not receive a second step-up in basis — QTIP trust assets are included in the surviving spouse's taxable estate under IRC § 2044. This has an important tax benefit for the remainder beneficiaries: when the surviving spouse dies, QTIP trust assets get a new cost basis equal to their fair market value on the date of death (IRC § 1014).⁵

For example:

• First spouse dies; QTIP trust is funded with $1 million in stock (basis steps up to $1 million at first death).
• 20 years later, surviving spouse dies; those stocks are worth $4 million.
• QTIP assets are included in the surviving spouse's estate at $4 million (IRC § 2044). The assets get a new step-up to $4 million (IRC § 1014).
• Children inherit the stock and sell immediately: zero capital gains tax.

This is the QTIP trust's primary income-tax advantage over a bypass trust. However, the inclusion in the surviving spouse's estate also means those $4 million may be subject to federal or state estate tax at the surviving spouse's death.

OBBBA and the $15 million exemption: does your QTIP trust still make sense?

Many QTIP trusts were designed primarily as estate tax deferral vehicles: delay the estate tax from the first death to the second, hopefully when the surviving spouse's estate is smaller or rates are lower. The tax landscape has changed dramatically:

• OBBBA (One Big Beautiful Bill Act, July 2025) permanently raised the federal estate and gift tax exemption to $15 million per individual, indexed for inflation.⁶ For most couples with combined estates under $30 million, federal estate tax is now a non-issue at either death.
• QTIP trusts whose sole purpose was tax deferral may no longer serve any useful function — but they are irrevocable trusts. They do not dissolve simply because their tax purpose has evaporated.

If the QTIP trust now appears counterproductive (administrative cost, complexity, restriction on the surviving spouse's access to assets that serves no tax purpose), there are formal options:

• UTC § 411 modification with beneficiary consent: If all qualified beneficiaries (surviving spouse plus remainder beneficiaries) consent and modification is not inconsistent with a material purpose of the trust, the trust can be modified or terminated. Requires legal counsel; many states require court approval even with full consent.
• Judicial modification: A court can modify or terminate a trust if circumstances have changed in a way the settlor did not anticipate — the OBBBA's $15 million exemption likely qualifies as such a change in many jurisdictions.
• Trust decanting: In states permitting decanting, the trustee can distribute assets into a new trust with more flexible terms. Requires a broad distribution power in the original trust document.

These are decisions for the estate attorney and, often, a fee-only advisor who can model the after-tax scenarios across the options. You cannot make them unilaterally as trustee.

When the QTIP trust terminates

A QTIP trust ends at the surviving spouse's death (unless the trust document provides for a different termination event). At that point:

1. Obtain a date-of-death appraisal. The step-up in basis under IRC § 1014 is based on fair market value on the surviving spouse's date of death. Document this with a formal appraisal for real estate, closely held interests, and any non-publicly-traded assets.
2. File the final Form 1041. A short-year return covers the trust's last year (first day of the tax year through the date of death or final distribution). Make sure all income for the period is distributed to beneficiaries on the final K-1 to avoid taxation at trust rates.
3. Include QTIP assets in the surviving spouse's estate. The trustee may need to provide the surviving spouse's estate attorney with account statements and appraisals for the QTIP trust assets — these must be included on the surviving spouse's Form 706 (if required). The surviving spouse's executor, not the trustee, handles this filing, but you will need to cooperate fully.
4. Distribute to remainder beneficiaries. After debts, final expenses, and the final tax year are resolved, distribute remaining assets per the trust document's distribution instructions. Obtain receipts and releases before making final distributions. See our trust closing guide for the step-by-step process.

Common QTIP trust administration mistakes

• Failing to get a separate EIN immediately. Running transactions through the surviving spouse's social security number creates commingling problems, incorrect tax reporting, and liability exposure.
• Missing required income distributions. Every dollar of accounting income must go to the surviving spouse. Failure to distribute is a breach of fiduciary duty — and causes unnecessary taxation at compressed trust rates.
• Overinvesting for income at the expense of principal growth. Tilting the portfolio heavily toward high-yield assets to maximize accounting income shortchanges the remainder beneficiaries. A total-return approach with an explicit distribution policy is usually better.
• Confusing QTIP trust income with the surviving spouse's other accounts. The QTIP trust is a separate legal entity. Its distributions are reported on K-1, not merged into the surviving spouse's personal investment accounts.
• Allowing the surviving spouse to demand principal outside the trust document's standards. Even if the surviving spouse asks — or demands — principal beyond what the trust authorizes, you cannot distribute it without breaching your duty to the remainder beneficiaries.
• Skipping the step-up in basis documentation at termination. When the surviving spouse dies, QTIP trust assets get a new basis. Failing to document fair market value on the date of death means the children lose the step-up and may overpay capital gains taxes.
• Assuming the QTIP trust structure is fixed forever. Modification options exist — but they require legal process. Don't administer a counterproductive structure indefinitely without at least having the conversation with the attorney about modification.