Estate PlanningAdvanced6 min read

QTIP trusts: providing for a spouse and protecting your kids

How a qualified terminable interest property trust supports a surviving spouse for life, defers estate tax, and still guarantees the remainder goes where you choose.

The QTIP trust, short for qualified terminable interest property, solves a problem as old as second marriages: how do you take care of your spouse for the rest of their life without letting them decide who ultimately inherits your assets? A QTIP threads that needle. It gives your surviving spouse a lifetime benefit, qualifies for the unlimited marital deduction so no estate tax hits at the first death, and yet lets you, the person who created it, dictate exactly who receives what remains when your spouse dies. It is the workhorse of blended-family and control-focused estate planning.

How a QTIP works

At your death, assets pass into the QTIP trust rather than to your spouse outright. Your surviving spouse must receive all the trust's income for life (at least annually) and typically the right to live in a trust-owned home; the trustee may also be permitted to distribute principal for the spouse's health and support. Crucially, the spouse cannot change the remainder beneficiaries. When the spouse dies, the trust assets pass to the people you named, most often your children from a prior marriage, exactly as you specified. The spouse enjoyed the assets; you controlled their destination.

  • Spouse gets: all trust income for life, usually a home, and often support from principal.
  • Spouse cannot: redirect the assets, name new remainder beneficiaries, or cut out your children.
  • You control: who inherits the remainder when your spouse dies.
  • Tax result: qualifies for the marital deduction, deferring estate tax until the second spouse's death.

The estate-tax mechanics

Normally, to get the unlimited marital deduction (which lets any amount pass to a spouse estate-tax-free), the spouse must receive the property outright, with full control, which is exactly what a QTIP does not give. The QTIP is a special exception: by making a 'QTIP election' on the estate tax return, your executor lets the trust qualify for the marital deduction despite the strings. The tradeoff is that the QTIP assets are then included in the surviving spouse's taxable estate at their death. So the tax is deferred, not erased, and for most families under the exemption it is a non-issue; the QTIP is chosen for control, not tax savings.

Control across a second marriage
A man with a $3 million estate and two children from his first marriage remarries. He wants his second wife comfortable for life but wants his kids to ultimately inherit. He leaves the assets to a QTIP trust: his wife receives the income and lives in the marital home for the rest of her life, the trustee can dip into principal for her health needs, and no estate tax is due at his death thanks to the QTIP election. When his wife later dies, the remaining trust assets pass to his two children, not to her relatives or a later spouse. He provided for his wife and protected his kids, without having to choose one over the other.

QTIP versus leaving assets outright

QuestionOutright to spouseQTIP trust
Who controls the remainder?The surviving spouseYou, the first to die
Marital deduction?YesYes, with QTIP election
Spouse supported for life?YesYes (income + often home/principal)
Can spouse disinherit your kids?YesNo
Assets in survivor's taxable estate?YesYes
Outright to spouse vs. QTIP trust
A QTIP requires a QTIP election, and careful drafting
The marital deduction for a QTIP is not automatic. Your executor must affirmatively make the QTIP election on a timely-filed estate tax return; miss it, and the intended tax treatment can be lost. The income-for-life requirement is also strict, if the spouse is not entitled to all income at least annually, the trust can fail to qualify. This is specialist drafting: the trust terms, the trustee's powers, and the election all have to line up. Do not attempt a QTIP with a template.

When a QTIP is the right tool

  • Second (or later) marriages where you want to provide for your spouse but preserve an inheritance for children from a prior relationship.
  • Any situation where you want a spouse supported for life but do not want them controlling the ultimate disposition, for instance, if you worry about a future remarriage or undue influence.
  • Larger estates using QTIP shares alongside bypass planning for flexible use of both spouses' exemptions.
  • Blended families wanting to keep the family home available to the surviving spouse while ensuring it eventually passes to the kids.

The bottom line

A QTIP trust is the elegant answer to the second-marriage dilemma: it supports your surviving spouse for life, defers estate tax through the marital deduction, and still lets you, not your spouse, decide who inherits when the spouse is gone. The cost is complexity, it requires a timely QTIP election, strict income rights, and careful drafting, and the assets remain in the survivor's taxable estate. But for anyone who wants to care for a spouse without surrendering control over where their assets ultimately land, especially in a blended family, the QTIP remains one of estate planning's most valuable structures. Build it with an experienced attorney; this is education, not legal or tax advice.

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