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Insight Horizon Media

What is a Qdot Trust?

Author

Daniel Rodriguez

Published Mar 13, 2026

What is a Qdot Trust?

A qualified domestic trust (QDOT) is a special kind of trust that allows taxpayers who survive a deceased spouse to take the marital deduction on estate taxes, even if the surviving spouse is not a U.S. citizen. Normally, a U.S. citizen surviving spouse can take the marital deduction, but a non-citizen surviving spouse cannot.

Is a Qdot property included in a surviving spouse’s gross estate?

QDOT property is also potentially includible in the surviving spouse’s gross estate under other Code provisions (such as Sec. 2044, if the QDOT is also a QTIP). Special rules apply for the calculation and use of a noncitizen surviving spouse’s DSUE amount.

Is a Qdot tax deduction a good idea?

A QDOT can be clearly preferable to receiving no marital deduction whatsoever, if the deceased spouse has a taxable estate, but QDOTs are cumbersome, expensive to administer, and there are many negatives to go along with that tax benefit.

When to file Form 706-qdt for Qdot?

If any such distributions are made, Tax Form 706-QDT must be filed by the QDOT by April 15, reporting any principal distributions made during the prior year, and paying estate tax under Section 2056A attributable thereto. This is a separate tax return from, and in addition to, the fiduciary income tax return for the QDOT.