QDOT Trust Cost and Setup for a Non-Citizen Spouse

What Is a QDOT Trust and Who Needs One?

A Qualified Domestic Trust (QDOT) is an irrevocable trust specifically designed to allow a non-citizen surviving spouse to benefit from the federal estate tax marital deduction. If your spouse is not a U.S. citizen at the date of your death, the marital deduction that would otherwise let your entire estate pass tax-free to your spouse simply does not apply, unless the assets pass through (or are transferred to) a QDOT.

This rule comes from 26 CFR § 20.2056A-1, which states that the federal estate tax marital deduction "is not allowed for property passing to or for the benefit of a surviving spouse who is not a United States citizen at the date of the decedent's death." The critical trigger is citizenship, not residency. Your spouse could have lived in the U.S. for decades, hold a green card, pay U.S. taxes every year, and still be treated as a non-citizen for this purpose.

There is one important exception: if the surviving spouse becomes a U.S. citizen before the estate tax return is filed and has been a U.S. resident at all times after the decedent's death, the standard marital deduction can apply and a QDOT may not be necessary.

How a QDOT Preserves the Marital Deduction for a Non-Citizen Spouse

A QDOT defers the federal estate tax rather than eliminating it. Assets in the trust qualify for the marital deduction when the first spouse dies, but the IRS collects its tax later, either when principal is distributed to the surviving spouse or when the surviving spouse passes away.

When both spouses are U.S. citizens, the unlimited marital deduction under 26 U.S.C. § 2056 lets any amount of property pass between them free of estate tax. The tax is simply deferred until the second spouse's death. A QDOT replicates this deferral mechanism for non-citizen spouses, but with additional IRS oversight.

Here's how distributions are treated:

• Income distributions (interest, dividends, rents, and other trust income) are generally not subject to the section 2056A estate tax, though they are subject to regular income tax.
• Principal distributions (also called corpus distributions) made during the surviving spouse's lifetime trigger estate tax under section 2056A(b)(1). The tax is calculated at the rate that would have applied to the first spouse's estate.
• Hardship distributions for immediate and substantial financial need caused by illness, maintenance, education, or support may qualify for an exception from the section 2056A tax, depending on the circumstances.
• Death of the surviving spouse triggers estate tax on the remaining trust principal as if it were part of the original decedent's estate.

For context, the federal estate tax exemption for 2024 is $13.61 million per individual. This exemption is scheduled to drop significantly after 2025 under the Tax Cuts and Jobs Act sunset provisions, which makes planning with a QDOT especially time-sensitive for larger estates.

QDOT Requirements: Trustee, Security, and the $2 Million Threshold

Every QDOT must have at least one U.S. trustee, either a U.S. citizen or a domestic corporation, who has the right to withhold the estate tax due on any taxable distribution. This is a non-negotiable structural requirement.

Beyond the trustee rule, the IRS imposes security requirements that scale with the size of the trust. The $2 million threshold is the dividing line, and the rules come directly from 26 CFR § 20.2056A-2(d) and the IRS instructions for Form 706-QDT.

A few important details:

• Aggregation rule. If more than one QDOT is established for the same surviving spouse, the values of all QDOTs are added together to determine whether the $2 million threshold is exceeded.
• Personal residence adjustment. For purposes of both the $2 million threshold calculation and the 35% foreign real property test, one personal residence and up to $600,000 of its value may be excluded under the regulations.
• Flexibility. A QDOT over $2 million can alternate between the bank trustee, bond, and letter of credit arrangements as long as one of them is operative at any given time.

How to Set Up a QDOT: Step-by-Step

Setting up a QDOT involves legal drafting, trustee selection, funding, and a timely election. Here are the steps in order.

Step 1: Engage a Qualified Estate Planning Attorney

A QDOT is not a DIY project. The trust instrument must contain specific language satisfying the requirements of 26 U.S.C. § 2056A and the Treasury regulations, including provisions for the applicable security arrangements. An attorney experienced in estate planning for international families is essential.

Step 2: Draft the QDOT Trust Instrument

The trust document must:

• Name at least one U.S. citizen or domestic corporation as trustee with the right to withhold estate tax.
• Include the correct security arrangement language (bank trustee, bond, letter of credit, or the 35% foreign real property limitation, depending on expected trust size).
• Specify the terms for distributions to the surviving spouse.
• Reference the applicable Treasury regulation provisions.

Step 3: Appoint a Qualifying U.S. Trustee

For trusts expected to exceed $2 million in assets, you'll likely need a U.S. bank or trust company willing to serve as trustee (or a co-trustee). For smaller trusts, a U.S. citizen individual trustee can serve, though the trust must still comply with the foreign real property limitation or voluntarily adopt one of the three higher-threshold security options.

Step 4: Fund the Trust

Assets can pass to the QDOT directly (through the will or a revocable trust) or the surviving spouse can transfer or irrevocably assign property that passed outside of trust to a QDOT after the decedent's death. The deadline for the surviving spouse's transfer is no later than one year after the last date prescribed by law (including extensions) for filing the estate tax return.

Step 5: Make the Timely QDOT Election on Form 706

The executor must elect QDOT treatment on the decedent's federal estate tax return (Form 706). This election must be made on a timely filed return. Missing this deadline can permanently forfeit the marital deduction for those assets.

Step 6: Reformation (If Necessary)

If a trust was created that doesn't initially meet all QDOT requirements, it may be reformed after the decedent's death to satisfy them, provided the reformation is completed and the election made within the required time frames under 26 CFR § 20.2056A-4(a).

QDOT Cost and Ongoing Administration

The cost of establishing and maintaining a QDOT depends on the trust's size and the security arrangement required. Here are the primary cost drivers.

Attorney drafting fees. Drafting a QDOT trust instrument typically costs more than a standard revocable trust because of the specialized regulatory language and planning involved. Fees vary widely by region and complexity, but expect to pay meaningfully more than for a basic estate plan.

Professional or bank trustee fees. If the trust exceeds $2 million and requires a U.S. bank as trustee, the bank will charge annual trustee fees, often calculated as a percentage of trust assets (commonly ranging from 0.5% to 1.5% annually, though this varies by institution and trust size).

Bond or letter of credit costs. For trusts over $2 million that use a bond or letter of credit instead of a bank trustee, the cost of a bond at 65% of trust asset value or a letter of credit at 65% of trust asset value is an ongoing annual expense. Premiums on surety bonds and bank fees for letters of credit vary, but they are not trivial for large trusts.

Ongoing administration duties include:

• Filing Form 706-QDT for any tax year in which a taxable event occurs (principal distribution or death of the surviving spouse).
• Measuring the 35% foreign real property test annually on the last day of the trust's tax year (for QDOTs at or below $2 million using that option).
• Maintaining required security arrangements and adjusting bond or letter of credit amounts as trust asset values change.
• Preparing regular trust accountings and income tax returns.

Costs scale with trust size. A $500,000 QDOT with an individual U.S. citizen trustee and no bond requirement will be far less expensive to maintain than a $10 million QDOT with a bank trustee and annual valuations.

Gift Tax and Estate Planning Options for a Non-Citizen Spouse

Lifetime gifts to a non-citizen spouse do not qualify for the unlimited gift tax marital deduction that applies between two U.S. citizen spouses. Instead, there is an elevated annual gift tax exclusion specifically for gifts to non-citizen spouses: for 2024, this amount is $185,000. This figure adjusts annually for inflation, so check the current year's threshold.

Couples where one partner is not a U.S. citizen have several planning avenues to consider alongside (or instead of) a QDOT:

• Lifetime gifting. Using the annual non-citizen spouse exclusion strategically over many years can transfer significant wealth without estate or gift tax consequences.
• Pursuing citizenship. If the surviving spouse becomes a U.S. citizen before the estate tax return is filed and has been a U.S. resident at all times since the decedent's death, the QDOT requirement falls away entirely.
• Life insurance. Properly structured life insurance can provide liquidity to cover estate taxes without the administrative burden of a QDOT, though this approach has its own costs and limitations.

The decision about which combination of strategies works best is deeply personal and depends on immigration status, family goals, asset mix, and how both partners think about money and the future.

As Michael C. Cotugno, Esq., Managing Partner, Neptune Legal, has noted: "Understanding a partner's relationship with money, their historical experiences of abundance or scarcity, their anxieties tied to financial stability, or their personal definitions of success, allows for a deeper, more empathetic understanding of them as a whole individual." That level of open dialogue is especially valuable when cross-border estate planning adds layers of complexity to shared financial decisions.

A qualified estate planning attorney and tax advisor can help you evaluate these options together and build a plan that reflects your shared priorities.