A citizen husband in Ontario, a wife from Michoacán who has held a green card since 2012, a trucking company, and a 2015 living trust leaving all to the survivor. The plan is broken in one place: 26 U.S.C. § 2056(d) shuts off the unlimited marital deduction when the surviving spouse is not a United States citizen, and a green card does not cure it.
California softens that. Under Cal. Fam. Code § 760 and Fam. Code § 751 each spouse owns a present, existing, and equal half of the community, and Cal. Prob. Code § 100 puts only the decedent’s half in his estate. Her half was always hers, so it never needs a marital deduction. The answer is usually a qualified domestic trust drafted as a dormant sub-trust inside the living trust, with an off switch if she naturalizes in time.
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A husband who is a United States citizen. A wife who has held a green card since 2012. A trucking company, and a 2015 living trust that leaves everything to the survivor. Most couples believe that plan is finished. It is not. Federal estate tax law switches off the unlimited marital deduction the moment the surviving spouse is not a citizen, and a green card does not cure it. Not after ten years. Not after thirty. For California couples, community property cuts the problem in half before you draft a single document. But one deed from 2007 can hand that advantage right back.
When one spouse dies, the tax code normally lets everything pass to the survivor free of estate tax. That is the marital deduction, and for citizen couples it is unlimited. When the survivor is not a citizen, the deduction is denied. What matters is the citizenship of the person receiving the property, so the husband being a citizen does him no good. The fix Congress built is a qualified domestic trust, a QDOT. It does not forgive the tax. It defers it. At least one trustee must be a citizen or a domestic corporation, and the tax comes due when principal is paid out or when the survivor dies. Income can flow freely. There is also an escape hatch. If the survivor becomes a citizen before the estate tax return is filed, and stayed a resident the whole time, the disallowance turns off. That return is due nine months after death.
Now the California part. Under state law, each spouse owns a present, existing, and equal half of everything acquired during the marriage while living here. When one spouse dies, only the decedent's half enters the taxable estate. The survivor's half was always hers, so it never needs a marital deduction. In a common-law state, a business the husband founded would sit entirely in his estate. In Ontario or Elk Grove, half of it is already hers. Both halves also receive a new tax basis at death, and citizenship plays no part in that test.
That cuts the other way too. If the couple took title as joint tenants, the community property rules do not govern. The tax code pulls the full value of joint tenancy property into the decedent's estate unless the survivor can prove what she contributed. Citizen spouses get an automatic fifty-fifty split. Noncitizen spouses lose that shortcut and have to trace, with records from the year of purchase. And because a joint tenancy is not community property, whatever half she keeps out of his estate also misses the step-up in basis.
The cleaner title in California is community property with right of survivorship. It keeps the community character, halves the estate, steps up both halves, and still avoids probate.
Consider an Ontario couple with a trucking company. Community property of roughly ten million dollars, plus one and a half million the husband inherited and never commingled. He dies in March of 2026. His gross estate is his five-million-dollar half plus the inheritance: six and a half million, not eleven and a half million. Against a fifteen-million-dollar exclusion, no tax is owed either way. So why bother? Because the QDOT protects the deduction, the portability election, and her unused exclusion for when she dies. Now change one fact. Deed the rentals as joint tenants back in 2007. If she cannot trace her half, the whole $2,400,000 lands in his estate. If she can, her half keeps its 2007 basis. On $900,000 of built-in gain, that is a lost step-up on roughly $450,000. Real money on a later sale, even with zero estate tax.
Three things to do this week. First, pull the deeds on every property you own together and read the vesting line. If it says joint tenants, ask why. Second, find out whether your living trust has a dormant qualified domestic trust built into it, with a switch that turns it off if the surviving spouse naturalizes in time. A trust from 2015 almost certainly does not. Third, if you are moving money between accounts to even things out, know that gifts to a noncitizen spouse above $194,000 a year are reportable. That's what we do at North Star Law Firm. The initial consultation is free, and the full written analysis with citations is on this page.
Why does the marital deduction disappear when a spouse is not a citizen?
Section 2056(a) lets a decedent pass an unlimited amount to a surviving spouse tax free. Section 2056(d)(1)(A) then says that if the spouse is not a citizen, “no deduction shall be allowed under subsection (a).” Section 2056(d)(1)(B) adds, more quietly, that “section 2040(b) shall not apply.” What counts is the recipient’s citizenship, so being a citizen himself does the husband no good.
Lifetime gifts run the same way. 26 U.S.C. § 2523(i)(1) denies the gift tax marital deduction, and § 2523(i)(2) substitutes a bigger annual exclusion, $194,000 for 2026 under Rev. Proc. 2025-32, up from $190,000, against $19,000 for everyone else. Section 2056(d)(4) turns the disallowance off if the survivor becomes a citizen before the return is made and was “a resident of the United States at all times after the date of the death of the decedent.” The return is due nine months after death, § 6075(a).
What does a QDOT require, and who can be trustee?
A qualified domestic trust defers the tax rather than forgiving it. 26 U.S.C. § 2056A(a)(1)(A) requires at least one trustee to be a U.S. citizen or a domestic corporation with the right to withhold the tax from distributions. Under § 2056A(b)(1) the tax lands on principal distributed during the survivor’s life and on what remains at her death, computed at the first decedent’s rates. Income distributions escape it, and § 2056A(b)(3)(B) exempts distributions made “on account of hardship.”
Security is where homemade plans fail. Under Treas. Reg. § 20.2056A-2(d)(1)(i), a QDOT holding more than $2,000,000 must name a bank as defined in section 581 as U.S. trustee, post a 65 percent bond in favor of the IRS, or furnish an irrevocable letter of credit for the same amount. Below that line, § 20.2056A-2(d)(1)(ii) caps foreign real property at 35 percent, measured annually. Section 2056(d)(2)(B) does let property be irrevocably assigned to a QDOT until the return is filed, and the trustee then files Form 706-QDT under § 2056A(b)(5)(A).
How do community property and the deed change the math?
Family Code § 760 makes property “acquired by a married person during the marriage while domiciled in this state” community property, and Fam. Code § 751 calls the spouses’ interests “present, existing, and equal.” Probate Code § 100(a) carries that through death. In a common-law state the business he founded would sit entirely in his gross estate; in Ontario or Elk Grove half is hers, and only his half reaches Schedule F. Section 1014(b)(6) then gives her half a date-of-death basis too, if at least half of the community interest was includible in his estate. Citizenship is nowhere in that test, so the double step-up survives a noncitizen survivor and a QDOT alike.
Titling can undo all of it. 26 U.S.C. § 2040(a) pulls the full value of joint tenancy property into the decedent’s estate except the part “shown to have originally belonged to such other person.” Section 2040(b) normally rescues spouses with a flat fifty percent, and § 2056(d)(1)(B) takes the rescue away. A Fontana duplex deeded in 2007 to “husband and wife as joint tenants” and paid for with community earnings therefore turns on tracing. Half the consideration was hers under Family Code § 751, but she carries the burden of proving it with records from 2007, and a joint tenancy deed is not community property, so whichever half she keeps out of his estate also misses the § 1014(b)(6) step-up.
Community property with right of survivorship, authorized by Cal. Civ. Code § 682.1, fixes that. It takes an express declaration in the transfer document, and the right can be severed the way a joint tenancy is. The asset stays community property, so § 100 halves it and § 1014(b)(6) steps up both halves, and probate is still avoided. Joint tenancy gives survivorship without either benefit; tenancy in common gives neither.
Is a green-card spouse a resident for estate tax purposes?
For estate tax the test is domicile. Treas. Reg. § 20.0-1(b)(1) defines a resident as a decedent who at death “had his domicile in the United States,” acquired by living somewhere “with no definite present intention of later removing therefrom.” That is not the green card and substantial presence test in 26 U.S.C. § 7701(b) that governs income tax residency, and the two can diverge.
A green-card holder whose house and grandchildren are in Corona is a resident decedent: worldwide estate, full exclusion under § 2010, $15,000,000 in 2026. A spouse who is neither citizen nor domiciliary is taxed only on U.S.-situs property under §§ 2104 and 2105, with the $13,000 credit in § 2102(b) sheltering about $60,000. Immigration status and estate tax residency are separate questions. We give no immigration advice, but naturalization timing belongs on the planning calendar, because § 2056(d)(4) turns on it.
Can portability still work when the surviving spouse is not a citizen?
You often read that portability is unavailable in a mixed-citizenship marriage. The regulation is narrower. Treas. Reg. § 20.2010-3(e) denies the deceased spousal unused exclusion amount to a surviving spouse who is a nonresident and not a citizen at death, except as a treaty allows. A green-card spouse domiciled in California is not in that paragraph.
What applies to her is timing. Under § 20.2010-3(c)(3), when property passes to a QDOT the DSUE is redetermined under Treas. Reg. § 20.2010-2(c)(4) and is not included in her exclusion until the final QDOT distribution or other § 2056A event, or on the date she becomes a citizen if § 2056A(b)(12) is met. The exclusion is parked, not lost, and cannot fund lifetime gifts meanwhile. None of it happens without the election on a return filed for the first decedent, § 2010(c)(5)(A).
What does this look like for an Ontario couple with a trucking company?
He is a U.S. citizen; she is a Mexican national with a green card since 2012. All figures are illustrative. Community property of about $10,000,000: a trucking company worth $6,000,000, rentals in Fontana and Rialto worth $2,400,000, a home and accounts worth $1,600,000. He also holds $1,500,000 inherited in 2019, never commingled, so it stays separate. He dies in March 2026, and his gross estate is his $5,000,000 half plus the $1,500,000 account, or $6,500,000. Her half is not in it.
Section 2056(d) therefore bites on $6,500,000 rather than $11,500,000, and against a $15,000,000 exclusion the estate owes nothing either way. The QDOT here is about the deduction line, the portability election, and the exclusion when she dies. If she takes the oath before the 706 is filed and stayed resident throughout, § 2056(d)(4) makes the structure unnecessary.
Change one fact: say the rentals were deeded as joint tenants in 2007. Now the outcome depends on paperwork. If she cannot trace her contribution, section 2040(a) puts the whole $2,400,000 in his estate, which happens to give the entire property a new basis but throws the full value against the § 2056(d) problem instead of half. If she traces half, only $1,200,000 is included, and because a joint tenancy is not community property her half keeps its 2007 basis. On $900,000 of built-in gain that is a lost step-up on roughly $450,000, real money on a later sale even though the estate tax was zero.
What happens to the property in Mexico, and what has to get filed?
There is no estate or gift tax treaty between the United States and Mexico. The IRS lists estate or gift tax treaties with fifteen countries, among them Canada, France, Germany, Japan and the United Kingdom. Mexico is absent, as are the Philippines and Vietnam, which matters for families in Stockton and Modesto. A resident spouse’s worldwide estate is taxed here while Mexico applies its own rules. Coastal and border-zone property is usually held through a fideicomiso, the bank trust foreign buyers must use there, and that interest counts against the 35 percent ceiling if it lands in the QDOT.
California itself takes nothing: Rev. & Tax. Code § 13302 imposes only a pick-up tax measured by the federal credit for state death taxes, which has not existed for two decades. Gifts above $194,000 a year go on Form 709, and couples shuffling money between accounts to even things out make reportable gifts without meaning to. Used on purpose it is a sound equalization tool, though in California it is usually separate property you are moving.
| Issue | Citizen spouse | Green-card spouse domiciled in CA | Nonresident, not a citizen |
|---|---|---|---|
| Marital deduction at death | Unlimited, § 2056(a) | Denied unless a QDOT, § 2056(d) | Denied unless a QDOT |
| Annual gift exclusion, 2026 | Unlimited | $194,000, § 2523(i)(2) | $194,000, § 2523(i)(2) |
| Spousal joint tenancy | 50% included, § 2040(b) | Tracing under § 2040(a) | Tracing under § 2040(a) |
| Exclusion as a decedent | $15,000,000 | $15,000,000, worldwide estate | About $60,000, § 2102(b) |
| Use of DSUE | Yes | Yes, deferred while a QDOT runs | No, absent a treaty |
Frequently Asked Questions
Does my spouse’s green card solve the marital deduction problem?
No. Under 26 U.S.C. 2056(d) the marital deduction is denied whenever the surviving spouse is not a United States citizen, and permanent residence is not citizenship. The card matters elsewhere, but only citizenship or a qualified domestic trust closes this gap.
What is a QDOT, and do we need one under $15 million?
A qualified domestic trust under 26 U.S.C. 2056A lets property passing to a noncitizen spouse qualify for the marital deduction, deferring tax until principal is distributed or the survivor dies. Below the exclusion no tax is due either way, so most California couples draft it as a dormant sub-trust.
Does community property help?
Yes, and it is why the problem is smaller here. Cal. Fam. Code 751 gives each spouse a present, existing, and equal interest in community property, and Cal. Prob. Code 100 confirms one half already belongs to the survivor at death. Only the decedent’s half enters the gross estate.
Can we fix it after death?
Often, if you move fast. Section 2056(d)(2)(B) treats property as passing to a qualified domestic trust if it is transferred, or irrevocably assigned under an assignment enforceable under local law, before the estate tax return is filed. That return is due nine months after death under 26 U.S.C. 6075(a).
What is the annual gift limit to a noncitizen spouse in 2026?
For 2026 it is $194,000 under 26 U.S.C. 2523(i)(2), set in Rev. Proc. 2025-32, up from $190,000. The ordinary annual exclusion is $19,000. Larger gifts are reportable on Form 709, and informal transfers between spousal accounts can create one nobody intended.
What happens to property in Mexico?
There is no estate or gift tax treaty between the United States and Mexico, so nothing stops both systems from reaching the same property. A surviving spouse who is a U.S. resident for estate tax purposes has her worldwide estate inside the federal system, and coastal property held through a fideicomiso still has to be valued and reported.
How North Star Law Firm Can Help
North Star Law Firm drafts and repairs estate plans for mixed-citizenship couples across the Inland Empire and Sacramento area, including revocable living trusts with a dormant QDOT sub-trust, titling corrections, and estate and trust tax returns plus trust administration when the § 2056(d)(2)(B) window is all that stands between a family and a lost deduction. Phillip Zagotti is a California attorney and a CPA admitted to the U.S. Tax Court, so the drafting and the returns get reviewed together.
If one of you is not a U.S. citizen and your trust has not been reviewed since the $15,000,000 exclusion took effect, contact North Star Law Firm or schedule a consultation.