IRC 2523 Gift Tax Marital Deduction and QDOT

Q: How does the IRC 2523(f) QTIP election work on Form 709?

IRC 2523(f) allows a donor to transfer property to a trust that would otherwise fail the terminable interest rule -- because the donor controls who receives the remainder -- and still qualify the transfer for the gift tax marital deduction. To qualify for the QTIP election, the trust must give the donee spouse the right to all income from the property payable at least annually, and no person may have the power to appoint any part of the property to any person other than the donee spouse during the donee spouse's lifetime. The donor or any other person may hold a power to appoint the remainder after the donee spouse's death. The election is made by the donor on Form 709, Schedule A, Part 1, by listing the gift as a marital deduction transfer and attaching the required statement identifying the elected property. Once made, the QTIP election is irrevocable. Under IRC 2523(f)(5), if the donee spouse transfers all or part of the income interest in the QTIP property, a gift tax is imposed on the value of the entire QTIP property as of the date of transfer. Under IRC 2523(f)(6), when the donee spouse dies, the full value of the QTIP property is included in the donee spouse's gross estate under IRC 2044. Verify current election procedures and Form 709 instructions at IRS.gov.

Q: Can the unlimited gift tax marital deduction be claimed for transfers to a non-citizen spouse?

No. IRC 2523(i) explicitly provides that the unlimited marital deduction under IRC 2523(a) does not apply to any transfer of property to a spouse who is not a U.S. citizen at the time of the transfer. This applies regardless of whether the transferor is a U.S. citizen. The denial of the marital deduction means every gift to a non-citizen spouse that exceeds the inflation-adjusted annual exclusion for non-citizen spouses is a taxable gift. For 2026, the annual exclusion for gifts to a non-citizen spouse is $190,000 (per Rev. Proc. 2025-49; verify the current inflation-adjusted amount at IRS.gov). Gifts to the non-citizen spouse above that threshold are taxable gifts that consume the donor's applicable exclusion amount (unified credit) or, if the exclusion is exhausted, result in current gift tax liability. Verify all requirements and current figures at IRS.gov.

Q: What is a QDOT and when should one be used in the gift tax context?

A Qualified Domestic Trust (QDOT) is a trust structure authorized under IRC 2056A (applied in the gift context through the QDOT regulations) that allows a transfer to a non-citizen spouse to qualify, at least partially, for deferred treatment by subjecting trust distributions and the trust corpus at the surviving spouse's death to an estate tax equivalent. In the gift context, a donor may transfer property to a QDOT for the benefit of a non-citizen spouse rather than transferring it outright. Because the QDOT imposes U.S. estate tax on principal distributions and on the trust corpus at the surviving spouse's death, the IRS's concern about lost tax revenue from a non-citizen spouse departing the U.S. is addressed. However, the gift tax marital deduction is not available for inter vivos transfers to a QDOT -- unlike the estate tax context, where IRC 2056(d) expressly permits the marital deduction for property passing to a QDOT. Inter vivos gifts to a QDOT above the non-citizen spouse annual exclusion are taxable gifts. The trust must have at least one U.S. trustee (citizen or domestic corporation) and must meet the requirements of Treas. Reg. Section 20.2056A-2. Verify current QDOT requirements and applicable regulations at IRS.gov.

Q: How are gifts to a non-citizen spouse reported on Form 709?

Gifts to a non-citizen spouse must be reported on Form 709, United States Gift (and Generation-Skipping Transfer) Tax Return, for the calendar year in which the gift is made. On Schedule A, Part 1, each gift to the non-citizen spouse is listed separately. The first $190,000 (2026; per Rev. Proc. 2025-49; verify the current indexed amount at IRS.gov) is excluded using the non-citizen spouse annual exclusion on Schedule A, Part 4. Transfers above the exclusion are taxable gifts subject to the unified credit and, if applicable, gift tax. If the gift involves a QTIP interest or a trust, additional disclosures and elections are required. The donor may not elect gift splitting with a non-citizen spouse under IRC 2513, because IRC 2513 requires both spouses to be U.S. citizens or residents. Verify all Form 709 reporting requirements, instructions, and current exclusion amounts at IRS.gov before filing.

Q: What happens if an existing QDOT is no longer necessary because the estate now falls under the OBBBA exemption?

If an existing QDOT was funded when the applicable exclusion was lower and the estate has since been reduced (by distributions, appreciation in the non-QDOT estate, or other factors) to a level comfortably below the $15 million per-person OBBBA exemption (indexed; verify at IRS.gov and consult independent counsel), practitioners should conduct a full cost-benefit review of retaining the QDOT structure. Options to consider include: (1) allowing the QDOT to continue (it remains valid; the Section 2056A estate tax on distributions and corpus remains applicable); (2) distributing assets from the QDOT to the non-citizen spouse (triggering Section 2056A estate tax on principal distributions, unless a hardship exception applies); and (3) the non-citizen spouse naturalizing as a U.S. citizen, which under Treas. Reg. Section 20.2056A-12 can result in the QDOT no longer being subject to Section 2056A tax if naturalization occurs before the estate tax return due date (for estate QDOT) or before the end of the year of the gift (for inter vivos structures, with specific conditions). Each path has different tax consequences. Verify all current options and requirements at IRS.gov and consult independent counsel.

Introduction: IRC 2523 as the Gift-Side Counterpart to IRC 2056

IRC 2523 is the gift tax provision that mirrors what IRC 2056 does on the estate tax side. While IRC 2056 permits an unlimited deduction from the taxable estate for qualifying transfers to a surviving citizen spouse at death, IRC 2523(a) permits an unlimited deduction from taxable gifts for qualifying transfers to a citizen spouse during life. The two provisions share a common statutory architecture: a baseline unlimited deduction, a terminable interest rule that denies the deduction for interests that pass to others after the spouse's interest ends, and a set of elective exceptions -- most importantly the Qualified Terminable Interest Property (QTIP) election -- that restore deduction eligibility for trust structures that would otherwise fail the terminable interest test.

Understanding IRC 2523 in 2026 requires holding two facts in tension. First, for married couples where both spouses are U.S. citizens, the unlimited marital deduction under IRC 2523(a) makes inter-spousal lifetime gifts a nonissue from a gift tax standpoint: no dollar cap, no Form 709 required for transfers between citizen spouses (unless other reporting obligations arise), and no gift tax. Second, for couples where one spouse is not a U.S. citizen, IRC 2523(i) entirely eliminates the unlimited marital deduction. Gifts to a non-citizen spouse above the inflation-adjusted annual exclusion -- $190,000 for 2026, per Rev. Proc. 2025-49 (verify the current inflation-adjusted amount at IRS.gov) -- are fully taxable gifts that consume the donor's applicable exclusion amount.

The OBBBA's permanent increase of the applicable exclusion amount to $15 million per person (indexed for inflation; verify at IRS.gov and consult independent counsel, as implementation guidance may be pending) changes the planning calculus materially. For many non-citizen-spouse couples, the combination of the $190,000 annual exclusion and the donor's $15 million lifetime exclusion makes the cost-benefit of a QDOT structure less compelling than it was before the OBBBA, particularly for moderate-sized estates. But for large estates, for clients with substantial appreciation exposure, and for clients in states with lower estate tax exemptions, the old planning questions remain live. This guide works through each element of the analysis.

IRC 2523(a) Unlimited Marital Deduction and the Terminable Interest Rule

The Baseline: IRC 2523(a)

IRC 2523(a) provides that, in computing taxable gifts, a donor who transfers property to a spouse who is a U.S. citizen may deduct the value of the transferred interest. There is no dollar cap on the deduction. A donor can transfer $1 million, $10 million, or $100 million to a citizen spouse during the calendar year and owe no gift tax on those transfers. The transfers are simply excluded from taxable gifts entirely.

Because transfers between citizen spouses do not generate taxable gifts, they also do not require reporting on Form 709 solely on account of the marital deduction -- though other circumstances (for example, a gift in trust or a gift of a future interest that would otherwise require reporting) may still trigger a Form 709 filing obligation. Verify current reporting requirements at IRS.gov and in the current Form 709 instructions.

The Terminable Interest Rule: IRC 2523(b)

The unlimited marital deduction is not available for every transfer to a spouse. IRC 2523(b) denies the deduction -- even for transfers to a citizen spouse -- when the interest transferred is a "terminable interest," defined as an interest that will terminate or fail on the lapse of time, the occurrence of an event or contingency, or the failure of an event or contingency to occur, and as a result of such termination another person will (for less than adequate consideration) possess or enjoy any part of the property. The terminable interest rule is grounded in the same policy as the IRC 2056(b) rule on the estate side: Congress does not want the marital deduction to serve as a device to pass wealth to children or other third parties without any transfer tax at either spousal level.

Classic examples of terminable interests that fail IRC 2523(b):

A life estate to the spouse with remainder to the couple's children. The spouse's interest ends at death; the children then enjoy the property without paying for it.
An annuity payable to the spouse for a term of years. If the spouse dies before the term ends, the remaining payments go elsewhere.
A conditional gift that reverts to the donor if the spouse remarries or moves out of the country.

Critical: Terminable Interest Denial Applies Even to Citizen Spouses

A common drafting error is to assume that any transfer to a spouse automatically qualifies for the unlimited marital deduction. IRC 2523(b) denies the deduction for terminable interests even when the recipient is a U.S. citizen. A life estate to a citizen spouse, without more, does not qualify. The deduction requires either an outright transfer, a general power of appointment trust under IRC 2523(e), a QTIP trust under IRC 2523(f), or a qualifying insurance or annuity arrangement under IRC 2523(g). Review every trust instrument before claiming the deduction.

Qualified Interests That Clear the Terminable Interest Rule

Three elective exceptions and one non-elective exception restore deduction eligibility for interests that would otherwise fail IRC 2523(b):

Outright transfers. A transfer of fee simple or an equivalent interest is not a terminable interest because the spouse's ownership is not subject to conditions. The marital deduction is available without any election.
General power of appointment trust (IRC 2523(e)). A trust qualifies without an election if: (a) the spouse is entitled to all the income from the property for life, (b) the income is payable at least annually or more frequently, and (c) the spouse holds a general power of appointment over the trust corpus exercisable during lifetime or at death. This structure gives the spouse complete control over the remainder, which is the statutory basis for allowing the deduction without an election.
Qualified Terminable Interest Property trust -- QTIP (IRC 2523(f)). The QTIP election allows the donor to retain control over the remainder while still claiming the marital deduction. This is addressed in depth in the next section.
Qualifying insurance and annuity interests (IRC 2523(g)). Certain life insurance policies or annuity contracts where the spouse is the sole beneficiary during the spouse's lifetime, with a general power of appointment over the remaining payments, qualify without an election.

IRC 2523(f) QTIP Election for Gifts: Mechanics and Form 709 Reporting

What the QTIP Election Accomplishes

The IRC 2523(f) QTIP election is the mechanism by which a donor can transfer property to a trust for the benefit of the spouse, claim the gift tax marital deduction for the full value of the transferred property, and simultaneously retain control over who receives the trust remainder after the spouse's death. Without the election, a trust that pays income to the spouse but restricts the spouse's ability to direct the remainder would fail the terminable interest rule and produce no marital deduction. With the election, the IRS accepts the deduction -- but the quid pro quo is that the trust corpus will be included in the donee spouse's gross estate under IRC 2044 when the donee spouse dies, and any income interest voluntarily transferred by the donee spouse triggers immediate gift tax on the full QTIP property value under IRC 2523(f)(5).

Qualification Requirements

To qualify for the QTIP election under IRC 2523(f), the trust must satisfy the following requirements (verify all requirements at IRS.gov):

All income to the donee spouse. The trust must give the donee spouse the right to all of the income from the QTIP property for life, payable at least annually.
No power to appoint to others during spouse's lifetime. No person -- including the donor, the donee spouse, or any third party -- may have the power to appoint any part of the QTIP property to any person other than the donee spouse during the donee spouse's lifetime. A power to appoint the remainder at the donee spouse's death (exercisable by the donor or anyone else) is permissible.
The election must be made by the donor on Form 709. The election is not automatic. The donor must affirmatively elect QTIP treatment on the Form 709 for the calendar year of the transfer.

Making the QTIP Election on Form 709

The QTIP election for gifts is made on Schedule A, Part 1 of Form 709. The donor lists the gift transfer to the QTIP trust and identifies it as a transfer for which the marital deduction is claimed. The election statement should: identify the trust by name or date, describe the property transferred, and confirm that the statutory requirements of IRC 2523(f) are satisfied. A partial QTIP election -- electing QTIP treatment for a fraction of the trust property and leaving the remainder outside the marital deduction -- is permitted under IRC 2523(f)(2). This flexibility allows the donor to calibrate how much of the transfer will be sheltered by the marital deduction and how much will consume the donor's applicable exclusion amount. Verify the current Form 709 instructions and election procedures at IRS.gov before filing.

Critical: The QTIP Election Is Irrevocable

Once the IRC 2523(f) QTIP election is made on a timely filed Form 709, it is irrevocable. The donee spouse's income interest in the elected property will be included in the donee spouse's gross estate at death under IRC 2044, regardless of how the estate's overall tax picture changes. If the OBBBA exemption or other changes make the QTIP election suboptimal in retrospect, there is no statutory mechanism to undo it. Consider the long-term implications -- especially in light of the OBBBA $15 million exemption -- before making an irrevocable QTIP election. Verify current rules at IRS.gov.

IRC 2523(f)(5) and (f)(6): Subsequent Transfer Triggers

Two downstream provisions constrain the donee spouse's behavior with respect to QTIP property:

IRC 2523(f)(5) -- Income interest transfer trigger. If the donee spouse transfers all or part of the income interest in the QTIP property (by gift, sale, or other disposition), the donee spouse is treated as having made a taxable gift of the entire value of the QTIP property at the time of transfer -- not merely the income interest that was actually transferred. This is a significant trap: even a partial disposition of the income interest triggers tax on the full value of the underlying QTIP property.
IRC 2523(f)(6) -- Estate inclusion. When the donee spouse dies, the full fair market value of the QTIP property remaining in the trust is included in the donee spouse's gross estate under IRC 2044. The estate tax on that inclusion is the price of the marital deduction claimed on the donor's Form 709. The donee spouse's estate may have a right of recovery from the QTIP trust under IRC 2207A to fund the estate tax attributable to the QTIP inclusion, unless the governing instrument waives that right.

Non-Citizen Spouse Rules Under IRC 2523(i)

The Statutory Denial

IRC 2523(i) provides that the marital deduction under IRC 2523(a) does not apply to any transfer of property to a spouse who is not a U.S. citizen at the time of the transfer. The denial is categorical: it does not matter whether the transfer would otherwise qualify as an outright gift, a QTIP trust, a general power of appointment trust, or any other qualifying form. If the donee spouse is not a U.S. citizen when the gift is made, no unlimited marital deduction is available. This rule applies equally regardless of whether the donor is a U.S. citizen, a green card holder, or a nonresident alien.

The policy rationale mirrors the IRC 2056(d) rule on the estate side: Congress is concerned that a non-citizen surviving spouse may leave the United States with the gifted assets, removing them from the reach of the U.S. estate tax at the second death that is the intended backstop for the marital deduction's deferral mechanism.

The Annual Exclusion for Gifts to a Non-Citizen Spouse

To soften the impact of the unlimited marital deduction denial, IRC 2523(i)(2) provides an increased annual exclusion for gifts to a non-citizen spouse. Instead of the standard annual exclusion under IRC 2503(b) (which applies to gifts to third parties), a donor may transfer up to an inflation-adjusted annual exclusion amount to a non-citizen spouse each calendar year without incurring gift tax. For 2026, that amount is $190,000 per Rev. Proc. 2025-49. Verify the current inflation-adjusted amount at IRS.gov before relying on any figure in this guide.

2026 Non-Citizen Spouse Annual Exclusion: $190,000

The annual exclusion for gifts to a non-citizen spouse is $190,000 for 2026, per Rev. Proc. 2025-49. This amount is inflation-adjusted annually. Verify the current inflation-adjusted amount at IRS.gov for any calendar year in which you are advising a client. This exclusion is separate from and in addition to the standard IRC 2503(b) annual exclusion available for gifts to third parties. The two exclusions do not interact: the $190,000 applies only to gifts to the non-citizen spouse and cannot be used for gifts to other donees.

Citizenship Status Is Determined at the Time of the Gift

Unlike the estate tax context, where the surviving spouse's citizenship status is measured at the date of the decedent's death, the gift tax rule under IRC 2523(i) measures citizenship at the time each gift is made. This means that if the donee spouse naturalizes as a U.S. citizen mid-year, gifts made before naturalization are subject to the non-citizen spouse rules (including the $190,000 exclusion cap) while gifts made after naturalization qualify for the unlimited marital deduction. Practitioners should track the naturalization date carefully and plan the timing of large gifts accordingly. Verify the citizenship determination rules and any IRS guidance on citizenship timing at IRS.gov.

Gift Splitting Is Not Available with a Non-Citizen Spouse

IRC 2513 requires that both spouses be U.S. citizens or residents at the time each gift is made in order to elect gift splitting. Because a non-citizen spouse who is also a nonresident alien does not satisfy the residency requirement, the gift-splitting election is unavailable for donors whose non-donor spouse is a non-citizen nonresident alien. Even when the non-citizen spouse is a U.S. resident (green card holder or substantial presence resident), the complexities of dual-status gift tax rules require careful verification. Do not assume gift splitting is available: verify the applicable requirements at IRS.gov and confirm residency status under the gift tax rules before advising any client.

QDOT Mechanics for Gifts: IRC 2056A Requirements and Trustee Rules

What a QDOT Is and Is Not

A Qualified Domestic Trust (QDOT) is a trust vehicle designed primarily for the estate tax context under IRC 2056A. The QDOT structure enables a decedent's estate to claim the estate tax marital deduction for property passing to a non-citizen surviving spouse by imposing a deferred estate tax on distributions of principal from the trust and on the trust corpus at the surviving spouse's death. The trust substitutes for the deferred estate tax that would have been collected at the surviving citizen spouse's death.

In the inter vivos (lifetime) gift context, the QDOT does not operate as a vehicle to restore the IRC 2523(a) unlimited marital deduction. There is no gift tax equivalent of IRC 2056(d) that permits a gift tax marital deduction for transfers to a QDOT during the donor's lifetime. Outright gifts to a non-citizen spouse and gifts to a QDOT for a non-citizen spouse both face the same $190,000 annual exclusion cap; amounts above the cap are taxable gifts. The QDOT's role in lifetime planning is structural: it creates an entity within which transferred assets can be managed for the non-citizen spouse in a way that keeps the assets within the U.S. tax net, and it may be required or advisable in certain estate plan designs that anticipate the trust continuing after the donor's death.

QDOT Structural Requirements Under IRC 2056A and the Regulations

A trust qualifies as a QDOT only if it meets the requirements of IRC 2056A and Treas. Reg. Section 20.2056A-2 (verify current requirements at IRS.gov). The core structural requirements are:

At least one U.S. trustee. At least one trustee must be a U.S. citizen or a domestic corporation. This requirement ensures that the IRS has a domestic party it can reach for collection of the Section 2056A estate tax on distributions.
No waiver of Section 2056A tax. The trust instrument and governing law must not permit any distribution from the trust that would circumvent the Section 2056A estate tax on principal distributions.
IRS withholding authority. The U.S. trustee must have the ability to withhold the Section 2056A estate tax from any distribution of principal before making the distribution.
Security requirements. For larger QDOTs (trusts with assets over a threshold set by regulation), additional security requirements apply -- either a U.S. bank trustee, a bond, or a letter of credit -- to secure payment of the deferred estate tax. Verify current threshold amounts and security requirements in Treas. Reg. Section 20.2056A-2 and at IRS.gov.

Practice Note: Section 2056A Estate Tax on Distributions

The Section 2056A estate tax is imposed on: (1) any distribution of principal from the QDOT to the surviving non-citizen spouse (other than distributions made on account of "hardship" as defined in the regulations); and (2) the entire value of the QDOT assets on the date of the surviving spouse's death. The tax is computed as if the distributed or remaining amount had been included in the estate of the original decedent. In the gift context -- where the QDOT is funded by inter vivos transfers rather than by the decedent's estate -- the mechanics differ in important respects; verify the applicable Section 2056A computation rules with counsel and at IRS.gov.

Non-Citizen Spouse Naturalization After QDOT Funding

If the non-citizen spouse naturalizes as a U.S. citizen after the QDOT is funded, the continued maintenance of the QDOT structure becomes a planning question rather than a legal requirement. Treas. Reg. Section 20.2056A-12 provides specific rules for how naturalization affects an existing QDOT, including conditions under which the Section 2056A estate tax is no longer imposed after naturalization. The analysis is fact-specific and the regulatory requirements are detailed. Verify the applicable conditions and procedures at IRS.gov and consult independent counsel before advising a client on the effect of naturalization on an existing QDOT.

OBBBA $15 Million Exemption: Impact on QDOT Planning for Non-Citizen Spouses

The One Big Beautiful Budget Act (OBBBA) permanently raised the applicable exclusion amount (unified credit) to $15 million per person, indexed for inflation. Verify the current indexed amount at IRS.gov; consult independent counsel, as these provisions are recently enacted and implementation guidance may be pending. The OBBBA change alters the QDOT cost-benefit analysis in several ways that practitioners must work through for every existing and prospective non-citizen-spouse plan.

Practice Note: OBBBA Figures Require Independent Verification

The OBBBA $15 million per-person applicable exclusion amount is recently enacted legislation. The indexed amount for any specific calendar year, and the interaction of the OBBBA with existing plans, pending regulations, and state conformity statutes, must be verified at IRS.gov and with qualified counsel before advising any client. Do not rely on any dollar figure in this guide without independent confirmation.

When a QDOT May No Longer Be Necessary

Before the OBBBA, the pre-OBBBA exemption level meant that a moderately wealthy married couple with a non-citizen spouse often faced meaningful federal estate tax exposure at the second death unless assets were kept within the U.S. tax net through a QDOT. At the $15 million per-person OBBBA level, many couples fall well within the donor's available applicable exclusion. Consider the following scenarios:

Combined estate under $15 million. If the combined marital estate is under the donor's own $15 million applicable exclusion, a QDOT adds complexity without federal estate tax benefit. The donor's exclusion can absorb the entire estate at death, regardless of who inherits it.
Combined estate between $15 million and $30 million. If the donor's estate exceeds the donor's individual exclusion but the combined couple's estate is under approximately $30 million (donor's $15 million plus the non-citizen spouse's own $15 million exclusion), the QDOT may still be unnecessary for federal purposes -- the non-citizen spouse's own exclusion at the second death may be sufficient. This calculation requires careful modeling because the non-citizen spouse's own exclusion (like the citizen spouse's portability exclusion) is not portable in the same way from the first decedent, and state estate tax may apply below the federal threshold.
Combined estate over $30 million, or significant state tax exposure. For larger estates or for clients in states with lower state estate tax exemptions, the QDOT may still provide meaningful federal or state tax deferral. The analysis must include state law as well as federal law.

Annual Gift Program Under the OBBBA Exemption

Even where a QDOT is no longer necessary for estate tax planning, the $190,000 annual exclusion cap for gifts to a non-citizen spouse (2026; verify at IRS.gov) continues to govern lifetime gifting. A donor who wishes to transfer assets to a non-citizen spouse above that annual cap must use the applicable exclusion amount (unified credit) to cover the taxable gift. Under the OBBBA, a donor has up to $15 million (indexed; verify at IRS.gov) of applicable exclusion to absorb taxable gifts to a non-citizen spouse over time. For moderate estates where total lifetime giving to the non-citizen spouse will be below the $15 million exclusion, the annual exclusion program can proceed without any QDOT or other structure. Track cumulative gifts on Form 709 to monitor exclusion consumption.

Reviewing Existing QDOT Structures Under the OBBBA

Practitioners with clients who have existing QDOT structures should conduct a fresh cost-benefit review in light of the OBBBA change. Questions to consider:

Does the remaining QDOT corpus, combined with the non-citizen spouse's other assets, still exceed the applicable exclusion at the spouse's projected death? If not, the Section 2056A tax on distributions may generate unnecessary complexity and cost without tax savings.
Has the non-citizen spouse naturalized, or is naturalization a realistic near-term option? Naturalization may eliminate the QDOT requirement under Treas. Reg. Section 20.2056A-12 (verify current conditions).
Are principal distributions from the QDOT triggering Section 2056A estate tax when the estate would otherwise be fully sheltered by the applicable exclusion at the second death? If so, restructuring may be advisable.
Does the state of domicile conform to the OBBBA exemption increase, or does the state have its own lower exemption that still makes the QDOT valuable for state tax planning?

Planning Perspective: The $190,000 Annual Program and Long-Term Wealth Transfer

For non-citizen-spouse couples whose estate is comfortably below the OBBBA $15 million threshold, a disciplined annual gift program using the $190,000 non-citizen spouse exclusion (2026; verify at IRS.gov) can transfer meaningful wealth over time without any gift tax and without consuming the applicable exclusion. Over 10 years, a consistent $190,000 annual program transfers $1.9 million to the non-citizen spouse entirely free of gift tax. Combined with the donor's applicable exclusion for amounts above the annual exclusion, a substantial transfer program is achievable for most families without a QDOT. Document each year's gifts on Form 709 and track the non-citizen spouse's citizenship status at the time of each gift.

Form 709 Reporting for Gifts to Non-Citizen Spouses

When Form 709 Is Required

A donor must file Form 709 for any calendar year in which the donor makes a gift to a non-citizen spouse that exceeds the non-citizen spouse annual exclusion ($190,000 for 2026; verify at IRS.gov). A Form 709 is also required if the donor makes any gift of a future interest (regardless of amount), if the donor is electing gift splitting under IRC 2513 (though splitting is not available for all non-citizen-spouse scenarios), or if the donor is making an allocation of GST exemption. Even when total gifts to the non-citizen spouse are within the $190,000 exclusion, a donor may want to file a protective Form 709 to document the gifts, establish the gift tax basis for future reference, and preserve the exclusion election. Verify current filing thresholds and requirements at IRS.gov and in the current Form 709 instructions.

Schedule A Reporting for Non-Citizen Spouse Gifts

On Form 709, Schedule A, Part 1 lists all gifts made during the calendar year (other than those excluded under IRC 2503(b) for third-party gifts). Gifts to a non-citizen spouse are listed separately from other gifts. The non-citizen spouse annual exclusion is claimed on Schedule A, Part 4 (Taxable Gift Reconciliation), reducing the reported gifts by the applicable exclusion amount for the non-citizen spouse. Amounts above the non-citizen spouse exclusion are carried to the gift tax computation, where the applicable exclusion amount (unified credit) is applied to offset any gift tax otherwise owed.

QTIP Trust Gifts on Form 709

If the donor is making a gift to a QTIP trust under IRC 2523(f) for a citizen spouse, Schedule A, Part 1 includes the transfer, and the QTIP election is evidenced on the Schedule A. For a non-citizen spouse, where the unlimited marital deduction is not available, a QTIP election would be unusual (since the deduction it is designed to support is unavailable), but a trust may still be used for management or non-tax reasons. Verify the applicable reporting requirements for trust gifts in the Form 709 instructions at IRS.gov.

Basis and Carryover Considerations

Unlike bequests at death, which generally receive a stepped-up basis under IRC 1014, lifetime gifts carry over the donor's adjusted basis to the donee under IRC 1015. For gifts to a non-citizen spouse above the annual exclusion, the donee spouse takes the donor's carryover basis (adjusted for gift tax paid, if any, under IRC 1015(d)). In a rising-market environment, a large outright gift to a non-citizen spouse may transfer embedded capital gain along with the asset. Weigh the gift tax cost and basis carryover against the estate tax deferral value when advising clients on the size and timing of inter-spousal gifts. Verify current basis rules at IRS.gov.

Gift Type and Marital Deduction Reference Table

The table below summarizes the gift tax marital deduction availability and applicable rules for the most common gift transfer types in mixed-citizenship marital planning. All figures and rules should be verified at IRS.gov for the relevant calendar year before advising any client.

Gift / Transfer Type	Donee Spouse Citizenship	Marital Deduction Available?	Annual Exclusion	Key IRC / Form 709 Rule	QDOT Required?
Outright cash gift	U.S. citizen	Yes -- unlimited	N/A (deduction covers full amount)	IRC 2523(a); no Form 709 required solely for marital deduction gifts	No
Outright cash gift	Non-citizen	No unlimited deduction	$190,000 (2026; verify at IRS.gov)	IRC 2523(i); report on Form 709 if above exclusion	No -- QDOT does not restore gift tax marital deduction
Life estate to spouse, remainder to children	U.S. citizen	No -- terminable interest	Standard annual exclusion does not apply to future interests	IRC 2523(b); no deduction unless election made	No
General power of appointment trust (all income to spouse, spouse has GPA over corpus)	U.S. citizen	Yes	N/A (deduction covers full value)	IRC 2523(e); no election needed; verify trust terms conform	No
QTIP trust (all income to spouse, no power in spouse to redirect corpus)	U.S. citizen	Yes -- if election made on Form 709	N/A (deduction covers elected amount)	IRC 2523(f); election irrevocable; IRC 2044 estate inclusion at death	No
QTIP trust (partial election)	U.S. citizen	Yes -- for elected fraction	N/A	IRC 2523(f)(2); non-elected portion taxable; verify Form 709 election statement	No
QTIP trust	Non-citizen	No unlimited deduction under IRC 2523(i)	$190,000 (2026; verify at IRS.gov) for exclusion-eligible portions	IRC 2523(i) overrides IRC 2523(f); transfer to QTIP trust still subject to exclusion cap	No -- structure does not restore gift tax deduction
Transfer to QDOT (inter vivos)	Non-citizen	No gift tax marital deduction; contrast with estate tax QDOT under IRC 2056(d)	$190,000 (2026; verify at IRS.gov) applies to amounts within exclusion	IRC 2056A; Treas. Reg. 20.2056A-2; at least one U.S. trustee required	QDOT may be used voluntarily; does not restore IRC 2523 deduction for gift tax
Gift to non-citizen spouse -- amount within annual exclusion	Non-citizen	Annual exclusion eliminates gift tax on amount within exclusion	$190,000 (2026; verify at IRS.gov)	IRC 2523(i)(2); present interest requirement still applies	No
Gift to non-citizen spouse -- amount above annual exclusion	Non-citizen	No marital deduction; amount above exclusion is taxable gift	$190,000 exclusion absorbs first portion; balance is taxable	IRC 2523(i); report on Form 709; unified credit (applicable exclusion) offsets tax	No -- QDOT not required for inter vivos gifts
Gift splitting election with non-citizen non-donor spouse (nonresident alien)	Non-citizen / nonresident alien	Not applicable	Gift splitting not available	IRC 2513 requires both spouses to be U.S. citizens or residents; verify at IRS.gov	No
Gifts after non-citizen spouse naturalizes as U.S. citizen	U.S. citizen (post-naturalization)	Yes -- unlimited marital deduction available for gifts made after naturalization date	N/A (deduction covers full amount post-naturalization)	IRC 2523(i) applies only at time of gift; gifts after naturalization qualify under IRC 2523(a)	No

Frequently Asked Questions: IRC 2523 Gift Tax Marital Deduction and QDOT

What is the IRC 2523 gift tax marital deduction and how does it differ from IRC 2056?

IRC 2523 is the gift tax analog to IRC 2056, which governs the estate tax marital deduction. IRC 2523(a) allows a donor spouse who is a U.S. citizen to deduct from taxable gifts the value of any property interest transferred to a U.S.-citizen spouse during the calendar year, subject to the terminable interest rule under IRC 2523(b). The deduction is unlimited -- there is no dollar cap -- meaning a U.S. citizen donor can transfer any amount to a U.S.-citizen spouse during life without incurring federal gift tax. IRC 2056, by contrast, governs transfers at death reported on Form 706. The two provisions are structurally parallel: both have terminable interest rules, both permit QTIP elections, and both impose special restrictions when the transferee spouse is not a U.S. citizen. Verify current requirements at IRS.gov.

What is the terminable interest rule under IRC 2523(b)?

The terminable interest rule under IRC 2523(b) denies the gift tax marital deduction for transfers of interests that will terminate or fail upon the lapse of time or the occurrence of a contingency, and where after such termination another person will possess or enjoy the property without purchasing it from the donee spouse. The rule prevents a donor from claiming the marital deduction while preserving the remainder for other beneficiaries free of transfer tax at both deaths. The statute carves out exceptions for general power of appointment trusts (IRC 2523(e)), QTIP trusts (IRC 2523(f)), and certain insurance interests (IRC 2523(g)). Verify all requirements at IRS.gov.

How does the IRC 2523(f) QTIP election work on Form 709?

IRC 2523(f) allows a donor to transfer property to a trust -- where the donor controls the remainder -- and still claim the gift tax marital deduction, provided the trust pays all income to the donee spouse at least annually and no person has the power to appoint any part of the trust to anyone other than the donee spouse during the donee spouse's lifetime. The election is made by the donor on Form 709, Schedule A, Part 1, and is irrevocable once made on a timely filed return. Under IRC 2523(f)(5), any transfer by the donee spouse of the income interest triggers gift tax on the full QTIP property value. Under IRC 2523(f)(6) and IRC 2044, the full QTIP property value is included in the donee spouse's gross estate at death. Verify current election procedures at IRS.gov.

Can the unlimited gift tax marital deduction be claimed for transfers to a non-citizen spouse?

No. IRC 2523(i) categorically denies the unlimited marital deduction for transfers to a spouse who is not a U.S. citizen at the time of the transfer, regardless of whether the donor is a citizen or what form the transfer takes. The denial applies to outright gifts, QTIP trusts, general power of appointment trusts, and QDOT transfers. Instead, the donor may transfer up to $190,000 per year (2026, per Rev. Proc. 2025-49; verify the current inflation-adjusted amount at IRS.gov) to a non-citizen spouse using the increased annual exclusion under IRC 2523(i)(2). Amounts above the exclusion are taxable gifts that consume the donor's applicable exclusion (unified credit). Verify all requirements and current figures at IRS.gov.

What is a QDOT and when should one be used in the gift tax context?

A Qualified Domestic Trust (QDOT) under IRC 2056A is a trust structure that keeps transferred assets within the U.S. tax net for non-citizen spouses by imposing a deferred estate tax on distributions of principal and on the trust corpus at the surviving spouse's death. In the gift tax context, unlike in the estate tax context under IRC 2056(d), a QDOT does not restore the unlimited gift tax marital deduction. Inter vivos gifts to a QDOT above the non-citizen spouse annual exclusion ($190,000 in 2026; verify at IRS.gov) are taxable gifts. A QDOT in the gift context may be used for management, asset protection, or estate plan integration purposes. The trust must have at least one U.S. trustee (citizen or domestic corporation) and must meet the requirements of Treas. Reg. Section 20.2056A-2. Verify current QDOT requirements at IRS.gov.

How does the OBBBA $15 million exemption change QDOT planning for non-citizen spouses?

The OBBBA permanently raised the applicable exclusion amount to $15 million per person (indexed for inflation; verify at IRS.gov and consult independent counsel as implementation guidance may be pending). For couples where one spouse is not a U.S. citizen, this changes the QDOT cost-benefit analysis: for estates comfortably under the $15 million threshold, the donor's applicable exclusion can absorb the entire estate at death without any QDOT structure. For moderate estates, the complexity and cost of maintaining a QDOT may outweigh its benefit. However, larger estates, state estate tax exposure, and asset appreciation projections can still make a QDOT valuable. Practitioners should conduct a fresh review of every existing QDOT structure in light of the OBBBA. Verify current figures and consult independent counsel.

How are gifts to a non-citizen spouse reported on Form 709?

Gifts to a non-citizen spouse are reported on Form 709 for the calendar year in which the gift is made. On Schedule A, Part 1, each gift is listed separately. The non-citizen spouse annual exclusion ($190,000 for 2026; per Rev. Proc. 2025-49; verify at IRS.gov) is claimed on Schedule A, Part 4. Amounts above the exclusion are taxable gifts subject to the unified credit and, if the credit is exhausted, current gift tax. Gift splitting under IRC 2513 is generally not available when the non-donor spouse is a non-citizen nonresident alien. Verify all Form 709 reporting requirements and current instructions at IRS.gov before filing.

What happens if an existing QDOT is no longer necessary because the estate now falls under the OBBBA exemption?

If an existing QDOT is no longer necessary for federal estate tax purposes in light of the OBBBA $15 million exemption (indexed; verify at IRS.gov and consult independent counsel), practitioners should review available options: (1) continuing the QDOT as-is (distributions remain subject to Section 2056A estate tax); (2) making principal distributions to the non-citizen spouse (each triggers Section 2056A tax unless a hardship exception applies); or (3) having the non-citizen spouse naturalize as a U.S. citizen, which under Treas. Reg. Section 20.2056A-12 may eliminate the Section 2056A tax obligation subject to specific conditions. Each path carries different tax consequences. Verify all current options and requirements at IRS.gov and consult independent counsel before acting.

Get Expert Guidance on IRC 2523 and QDOT Planning

The OBBBA $15 million exemption changes how non-citizen-spouse gift and estate planning works. Whether you are reviewing an existing QDOT structure, coordinating the $190,000 annual exclusion with a broader gift program, or advising a couple through a naturalization-driven plan redesign, our team has deep experience with IRC 2523 and QDOT mechanics. Contact Americas Tax to schedule a practitioner consultation.

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Estate and Gift Tax Practice Group | Americas Tax

Disclaimer: This guide is provided for informational and educational purposes only and does not constitute legal, tax, or accounting advice. Tax law changes frequently; figures cited in this guide are indexed for inflation and subject to annual adjustment. Verify all dollar amounts, statutory requirements, and regulatory positions at IRS.gov before advising any client. Consult qualified legal and tax counsel for advice specific to your client's facts and circumstances. Americas Tax is not responsible for actions taken in reliance on general informational content.