A QTIP trust, short for Qualified Terminable Interest Property trust, lets a married person leave assets in trust so the surviving spouse receives all the income for life while the principal eventually passes to beneficiaries the grantor named, usually children from a prior marriage. The arrangement qualifies for the unlimited marital deduction, so no federal estate tax is owed on those assets when the first spouse dies. The tax is deferred, not erased: the full value of the QTIP property gets added to the surviving spouse’s taxable estate later.
How the Trust Works in Practice
Federal estate tax law usually denies the marital deduction for property interests that end at the surviving spouse’s death, because those “terminable interests” never truly belong to the spouse the way an outright gift would.1Office of the Law Revision Counsel. 26 U.S. Code 2056 – Bequests, etc., to Surviving Spouse The QTIP trust is a statutory exception. Even though the surviving spouse receives only a life interest in the income, the property still qualifies for the marital deduction if the trust meets specific structural rules and the executor makes an election on the estate tax return.2Justia Law. 26 U.S. Code 2056 – Bequests, etc., to Surviving Spouse
The combination of lifetime income for one person and locked-in principal for another is what makes the QTIP trust popular in blended families. Leave everything outright to a spouse, and nothing stops them from remarrying and redirecting those assets to a new partner or stepchildren. A QTIP trust prevents that. The surviving spouse is supported financially, but the principal goes where the grantor said it would, regardless of what happens in the spouse’s life afterward. For couples in first marriages with shared children, a QTIP still adds value by shielding assets from creditors, lawsuits, or poor financial decisions the spouse might otherwise make.
What a Trust Must Contain to Qualify
A trust qualifies as QTIP only if every element of the statutory test is satisfied. Miss one, and the marital deduction fails for the entire property interest.
- All income must go to the surviving spouse, payable at least annually. The trustee cannot accumulate income or send any of it to another person while the spouse is alive.2Justia Law. 26 U.S. Code 2056 – Bequests, etc., to Surviving Spouse
- No one, including the surviving spouse, can hold a power during the spouse’s lifetime to direct trust property to anyone other than the spouse. A power exercisable only at or after the spouse’s death is fine, so a limited testamentary power of appointment among the grantor’s descendants is allowed.
- The spouse’s income interest must last for life. A clause cutting it off on remarriage, for example, disqualifies the trust.
- The executor must affirmatively elect QTIP treatment on the federal estate tax return. The trust’s existence alone does not trigger the deduction.
Giving the surviving spouse a general power of appointment over the principal would disqualify the trust and pull the property into the spouse’s gross estate under a different set of rules, producing a less controllable tax outcome.3Office of the Law Revision Counsel. 26 U.S. Code 2041 – Powers of Appointment
Trustee Powers Over Principal
Income distributions are mandatory. Principal is different. The trust instrument can give the trustee discretion to distribute principal to the surviving spouse, and most QTIP trusts do. Without that flexibility, a spouse whose needs outrun the trust’s yield would have no recourse.
The standard approach limits principal invasions to an ascertainable standard, typically the HEMS standard: health, education, maintenance, and support. Distributions made under HEMS are not treated as a general power of appointment for estate tax purposes, so they don’t jeopardize the trust’s QTIP status. The trustee might tap principal for an unexpected medical bill or to help the spouse maintain their accustomed standard of living. Distributions must benefit only the surviving spouse, and the spouse cannot hold unrestricted power to withdraw principal at will.
A tension runs through every QTIP trust. The surviving spouse wants maximum current income; the remainder beneficiaries want the portfolio to grow. A trustee investing entirely in bonds starves the remaindermen of appreciation; loading up on growth stocks shorts the spouse. Most states require the trustee to balance the two interests by looking at the portfolio as a whole, and some trust instruments authorize the trustee to adjust between principal and income, converting total return into distributable income without violating the QTIP rules.
The Section 2519 Trap for the Surviving Spouse
If the surviving spouse disposes of their qualifying income interest by gift, sale, or assignment, the tax code treats that as a transfer of the entire trust, not just the income stream.4Office of the Law Revision Counsel. 26 U.S. Code 2519 – Dispositions of Certain Life Estates The spouse is deemed to have made a taxable gift of all interests in the trust other than the income interest, and the income interest itself is separately subject to gift tax. A surviving spouse who casually assigns income rights to a child, thinking they’re being generous, can trigger gift tax on the entire trust corpus and lose the basis step-up the assets would have received at death.
Making the QTIP Election
The marital deduction does not attach automatically when property enters a QTIP trust. The executor of the deceased spouse’s estate elects QTIP treatment on IRS Form 706, the federal estate tax return, by listing the property on Schedule M.5Internal Revenue Service. Instructions for Form 706 Form 706 is due nine months after the date of death, with extensions available.6Office of the Law Revision Counsel. 26 U.S. Code 6075 – Time for Filing Estate and Gift Tax Returns
Once made, the election is irrevocable.2Justia Law. 26 U.S. Code 2056 – Bequests, etc., to Surviving Spouse The executor cannot reverse it if the tax math changes later, which is why the decision demands real analysis before filing.
The election does not have to cover the whole trust. A partial election, applied to a fractional or pecuniary share, is permitted. That flexibility lets the executor apply the deceased spouse’s own estate tax exemption against the non-elected portion, effectively splitting the trust into a taxable share and a deductible share. The executor can balance the tax burden across the two spouses’ estates based on actual values at death rather than projections made years earlier.
How Portability Fits In
Portability lets a surviving spouse use the deceased spouse’s unused estate tax exemption (the deceased spousal unused exclusion, or DSUE). Claiming portability requires filing Form 706 even if the estate is below the filing threshold.7Internal Revenue Service. Estate Tax Estates filing only for portability can use simplified reporting with estimated values for marital deduction property, but that shortcut disappears when the executor makes a partial QTIP election. Full valuations become required, which raises appraisal costs and complicates the filing.
Whether to rely on portability alone, use a QTIP trust, or combine both depends on total wealth, the mix of separate and jointly held property, and whether locking in remainder beneficiaries matters. Portability is simpler but offers no asset protection and no control over who ultimately inherits. A QTIP trust is more work to set up and administer and delivers both.
Tax at the Surviving Spouse’s Death
The QTIP trust’s tax bill comes due at the second death. The full fair market value of the trust property is included in the surviving spouse’s gross estate, even though the spouse never controlled where the principal would go.8Office of the Law Revision Counsel. 26 U.S. Code 2044 – Certain Property for Which Marital Deduction Was Previously Allowed The marital deduction taken at the first death was a deferral, and this inclusion is the mechanism that eventually collects the tax.
For 2026, the federal estate tax exemption is $15 million per individual, or $30 million for a married couple using both exemptions, indexed for inflation in later years.9Office of the Law Revision Counsel. 26 U.S. Code 2010 – Unified Credit Against Estate Tax The surviving spouse’s remaining exemption applies against their entire taxable estate, QTIP assets included. Anything above the exemption is taxed at rates up to 40%.10Office of the Law Revision Counsel. 26 U.S. Code 2001 – Imposition and Rate of Tax
Right of Recovery From the Remainder Beneficiaries
Because the QTIP property inflates the surviving spouse’s taxable estate, the law gives that estate a right to recover the additional estate tax from the remainder beneficiaries who actually receive the property.11Office of the Law Revision Counsel. 26 U.S. Code 2207A – Right of Recovery in the Case of Certain Marital Deduction Property Without it, the extra tax would fall on the spouse’s separate assets, shortchanging the spouse’s own beneficiaries. The surviving spouse can waive the right of recovery in their will, but the waiver must be explicit. If the will is silent, the right of recovery stands.
Stepped-Up Basis
Because QTIP assets are included in the surviving spouse’s estate, they receive a stepped-up cost basis to fair market value at that death. For assets that appreciated substantially over decades in trust, the step-up can wipe out a large capital gains liability for the remainder beneficiaries. A bypass trust does not produce this second step-up, because it isn’t in the surviving spouse’s estate. For families where income tax savings matter more than estate tax deferral, that difference can drive the entire planning strategy.
State Estate Taxes
About a dozen states and the District of Columbia impose their own estate taxes, most with exemption thresholds well below $15 million. A QTIP trust that owes nothing federally can still generate a state estate tax at the surviving spouse’s death. State QTIP elections are usually separate from the federal election, and some states allow a state-only QTIP election that defers state tax without affecting the federal return. If you live in one of these states, your plan needs to account for both layers.
Income Tax on Trust Earnings
Trust income during the surviving spouse’s lifetime is its own matter, though more manageable than the compressed trust rate schedule first suggests. Trusts and estates hit the top 37% federal bracket at just $16,000 of taxable income in 2026, a threshold an individual would take hundreds of thousands of dollars to reach. Because a QTIP trust must distribute all income to the surviving spouse, that income is generally reported on the spouse’s personal return, not the trust’s. The trust takes a distribution deduction, and the spouse pays at individual rates. The compressed trust brackets become a real problem only for income the trust is not required to distribute, such as capital gains allocated to principal. That income is taxed at the trust level at the steep rates, and it comes out of the principal the remainder beneficiaries will eventually receive.