Specialized Returns for Individuals · Gift tax
Effect on estate tax (e.g., Generation skipping transfer tax)
tax year · reviewed 2026-08-20 · Draft for I. Ohu review
Two things about lifetime giving surprise clients who thought a gift ended the matter. The first is that gifts come back: taxable gifts are added to the estate tax base at death, and gift tax paid on gifts made in the last three years of life is added to the gross estate on top. The second is that a third tax exists. The generation-skipping transfer tax applies to transfers that reach two generations down, it is a flat top-bracket rate rather than a graduated one, and it has its own exemption that must be allocated rather than simply claimed.
The rule
Gifts return to the base. a tentative tax on the sum of the taxable estate and adjusted taxable gifts, reduced by the gift tax that would have been payable on post-1976 gifts under current rates — so lifetime gifts enlarge the base rather than reducing the exclusion arithmetic (IRC § 2001(b))TY2026 A gift removes future appreciation from the estate; it does not remove the gift.
And recent gift tax is grossed up. the gross estate is increased by any gift tax paid by the decedent or the decedent's spouse on gifts made during the 3-year period ending at death — so paying the gift tax does not get that money out of the estate unless the donor survives three years (IRC § 2035(b))TY2026 This is what defeats the deathbed gift: the money used to pay the gift tax is pulled back into the estate unless the donor lives three more years.
The third tax. three, and only three — a taxable distribution, a taxable termination and a direct skip (IRC § 2611(a))TY2026 A direct skip is an outright transfer to a skip person; a taxable termination and a taxable distribution reach trusts.
Who is a skip person. a natural person assigned to a generation 2 or more generations below the transferor's, or a trust in which all interests are held by skip persons or from which no distribution may be made to a non-skip person (IRC § 2613(a))TY2026
How generations are counted — by family, not by age. for a lineal descendant of a grandparent of the transferor or of the transferor's spouse, generation is assigned by counting generations from that grandparent — by family tree, never by age — with legal adoption treated as blood and the half-blood as the whole-blood (IRC § 2651(b))TY2026 A grandchild is two generations down whatever the ages involved, and a much younger child is one generation down.
Age decides only for strangers. only for an individual not assigned by the family rules: born not more than 12½ years after the transferor is the transferor's own generation, more than 12½ but not more than 37½ years after is the first younger generation, and a new generation every 25 years after that (IRC § 2651(d))TY2026 That is where the familiar 37½ years comes from, and it applies only to someone the family rules do not already place.
Two rules that stop the tax. anyone who has ever been married to the transferor takes the transferor's own generation, and anyone who has ever been married to a lineal descendant takes that descendant's generation — so a much younger spouse is never a skip person (IRC § 2651(c))TY2026 And where a descendant of a parent of the transferor, or of the transferor's spouse or former spouse, has a parent who died before the transfer, that individual and their descendants move up a generation — so a grandchild whose parent has died is not a skip person (IRC § 2651(e))TY2026
Two transfers outside the tax entirely. a transfer that would not be a taxable gift by reason of IRC § 2503(e), and a transfer already taxed under chapter 13 to a transferee at the same or a lower generation where the transfers do not have the effect of avoiding the tax (IRC § 2611(b))TY2026
The rate is flat. the maximum federal estate tax rate multiplied by the inclusion ratio — a flat top-bracket rate, not a graduated one, and reduced to nil only by allocating exemption (IRC § 2641(a))TY2026
And the exemption must be allocated. every individual has a GST exemption equal to the IRC § 2010(c) basic exclusion amount for the calendar year, allocable by the individual or the executor to property of which they are the transferor, and any allocation once made is irrevocable (IRC § 2631)TY2026 It is $15,000,000 for calendar year 2026 — the IRC § 2631(c) generation-skipping transfer exemption tracks the basic exclusion amountTY2026 — the same figure as the estate tax exclusion, but a separate amount, and unlike that one it is not portable between spouses.
Current figures
| Item | Rule |
|---|---|
| Gifts added to the estate base | a tentative tax on the sum of the taxable estate and adjusted taxable gifts, reduced by the gift tax that would have been payable on post-1976 gifts under current rates — so lifetime gifts enlarge the base rather than reducing the exclusion arithmetic (IRC § 2001(b))TY2026 |
| Gift tax gross-up | the gross estate is increased by any gift tax paid by the decedent or the decedent's spouse on gifts made during the 3-year period ending at death — so paying the gift tax does not get that money out of the estate unless the donor survives three years (IRC § 2035(b))TY2026 |
| Three-year rule on transfers | property transferred, or a power relinquished, within the 3-year period ending at death is pulled back into the gross estate where it would have been included under IRC § 2036, 2037, 2038 or 2042 had the interest or power been retained (IRC § 2035(a))TY2026 |
| Generation-skipping transfers | three, and only three — a taxable distribution, a taxable termination and a direct skip (IRC § 2611(a))TY2026 |
| Skip person | a natural person assigned to a generation 2 or more generations below the transferor's, or a trust in which all interests are held by skip persons or from which no distribution may be made to a non-skip person (IRC § 2613(a))TY2026 |
| Generation by family | for a lineal descendant of a grandparent of the transferor or of the transferor's spouse, generation is assigned by counting generations from that grandparent — by family tree, never by age — with legal adoption treated as blood and the half-blood as the whole-blood (IRC § 2651(b))TY2026 |
| Generation by age | only for an individual not assigned by the family rules: born not more than 12½ years after the transferor is the transferor's own generation, more than 12½ but not more than 37½ years after is the first younger generation, and a new generation every 25 years after that (IRC § 2651(d))TY2026 |
| Spouses | anyone who has ever been married to the transferor takes the transferor's own generation, and anyone who has ever been married to a lineal descendant takes that descendant's generation — so a much younger spouse is never a skip person (IRC § 2651(c))TY2026 |
| Predeceased parent | where a descendant of a parent of the transferor, or of the transferor's spouse or former spouse, has a parent who died before the transfer, that individual and their descendants move up a generation — so a grandchild whose parent has died is not a skip person (IRC § 2651(e))TY2026 |
| Excluded transfers | a transfer that would not be a taxable gift by reason of IRC § 2503(e), and a transfer already taxed under chapter 13 to a transferee at the same or a lower generation where the transfers do not have the effect of avoiding the tax (IRC § 2611(b))TY2026 |
| Applicable rate | the maximum federal estate tax rate multiplied by the inclusion ratio — a flat top-bracket rate, not a graduated one, and reduced to nil only by allocating exemption (IRC § 2641(a))TY2026 |
| Exemption mechanics | every individual has a GST exemption equal to the IRC § 2010(c) basic exclusion amount for the calendar year, allocable by the individual or the executor to property of which they are the transferor, and any allocation once made is irrevocable (IRC § 2631)TY2026 |
| GST exemption amount | $15,000,000 for calendar year 2026 — the IRC § 2631(c) generation-skipping transfer exemption tracks the basic exclusion amountTY2026 |
| Basic exclusion amount | $15,000,000 for a decedent dying in calendar year 2026 — the IRC § 2010(c)(3)(A) basic exclusion amount as raised by Pub. L. 119-21 § 70106, indexed from calendar year 2026 and rounded to the nearest $10,000 under § 2010(c)(3)(B)TY2026 |
| Annual exclusion | $19,000 per donee for calendar year 2026, for gifts other than gifts of future interests (IRC § 2503(b))TY2026 |
| Qualified transfers | tuition paid directly to an educational organization described in IRC § 170(b)(1)(A)(ii), and amounts paid directly to a provider of medical care within § 213(d), are not transfers by gift at all — unlimited in amount and additional to the annual exclusion (IRC § 2503(e))TY2026 |
How it works in practice
Say what a gift actually achieves. It moves future growth and future income out of the estate. It does not move the gifted amount out of the transfer tax base, because § 2001(b)(1)(B) brings it back as an adjusted taxable gift. Clients told that gifts “use up” exclusion have been given a shortcut that happens to produce the right number; clients told that gifts escape the estate tax have simply been misinformed.
Model the three-year window on any gift large enough to generate tax. Where gift tax is actually paid — which now means a client who has exhausted the credit — § 2035(b) adds that tax to the gross estate if death follows within three years. The strategy of paying gift tax to shrink the estate works only for a donor who survives the window.
Test generation by relationship first. Reach for ages only when the recipient is not a lineal descendant of a grandparent of the client or the client’s spouse. A friend, an employee, a partner’s child: those are the § 2651(d) cases. Family is counted on the tree.
Check whether a parent has died before assuming a grandchild is a skip person. Section 2651(e) moves the grandchild up a generation where their parent predeceased the transfer, and the transfer stops being a generation-skipping transfer at all.
Allocate the exemption deliberately. The exemption is not applied automatically to the transfers where it does most good, and an allocation once made is irrevocable. The automatic allocation rules handle simple direct skips; anything involving a trust needs a decision on the Form 709.
And remember it is not portable. A surviving spouse can inherit unused basic exclusion through the portability election. There is no equivalent for the GST exemption — an unused amount dies with the first spouse, which is a reason for the first estate to allocate rather than leave it.
The gift that did not shrink the estate
A client with an exhausted credit gives her son $6,000,000 and pays $2,400,000 of gift tax. She dies twenty months later with a remaining estate of $9,000,000.
Her gross estate is $11,400,000, not $9,000,000, because § 2035(b) adds the gift tax paid within the three-year period. And the $6,000,000 gift itself returns to the computation as an adjusted taxable gift under § 2001(b)(1)(B). What she achieved was to remove twenty months of growth on $6,000,000 from her estate. Had she lived past the three-year mark, the $2,400,000 of tax would have been out of the estate permanently, which is the real benefit of paying gift tax early.
The 40-year age gap that was not a skip
A client of 71 has a son of 31, born late in his life, and gives him $500,000.
There is no generation-skipping transfer. The son is a lineal descendant of a grandparent of the transferor, so § 2651(b) assigns him by counting generations on the family tree — one generation down — and the 40-year age gap is irrelevant. The 37½ year test in § 2651(d) applies only to an individual whom the family rules do not place, and a son is placed.
The grandchild who was not a skip person
A woman wants to leave $2,000,000 to her granddaughter. Her son, the granddaughter’s father, died two years ago.
The transfer is not a generation-skipping transfer. Under § 2651(e) a descendant of a parent of the transferor whose own parent died before the transfer moves up a generation, so the granddaughter is treated as occupying her father’s generation and is one generation down, not two. No exemption allocation is needed and no chapter 13 tax arises.
The tuition that escaped three taxes
A grandfather pays $70,000 of his granddaughter’s medical school tuition directly to the university.
It is not a gift under § 2503(e)(2)(A), so no gift tax and no use of the annual exclusion. It is not a generation-skipping transfer, because § 2611(b)(1) excludes any transfer that would not be a taxable gift by reason of § 2503(e) — even though the granddaughter is a skip person. And nothing enters his estate. A direct payment to the institution is the only routine transaction in the transfer tax system that is outside all three taxes at once.
Telling a client a gift removes the amount from the estate. It removes the growth. Section 2001(b)(1)(B) brings the gift itself back as an adjusted taxable gift.
Forgetting the gross-up. IRC § 2035(b) adds gift tax paid within three years of death to the gross estate, and it reaches tax paid by the decedent’s spouse on those gifts too.
Using the 37½ year test on a relative. It is in § 2651(d), which applies only to an individual not assigned by the family rules in § 2651(b) and (c).
Assuming any grandchild is a skip person. Section 2651(e) moves a grandchild up where the intervening parent has died before the transfer.
Treating a much younger spouse as a skip person. Section 2651(c)(1) assigns anyone ever married to the transferor to the transferor’s own generation.
Expecting a graduated GST rate. Section 2641(a) uses the maximum federal estate tax rate multiplied by the inclusion ratio. There is no bracket structure to work up through.
Assuming the GST exemption ports to a surviving spouse. Only the basic exclusion amount does. An unused GST exemption is lost.
Assuming an allocation can be revised. Section 2631(b) makes an allocation irrevocable once made.
How this has changed
The generation-skipping tax in its present form dates from 1986, replacing a 1976 version that was repealed retroactively. Sections 2611, 2613, 2631, 2641 and 2651 have not been amended in substance since, and Pub. L. 119-21 touched none of them.
What the 2025 Act did was raise the basic exclusion amount, which the GST exemption follows automatically: § 2631(c) sets the exemption equal to the § 2010(c) basic exclusion amount for the calendar year, so the exemption is now $15,000,000 for calendar year 2026 — the IRC § 2631(c) generation-skipping transfer exemption tracks the basic exclusion amountTY2026 without any amendment to chapter 13. That is a large practical change delivered entirely by a cross-reference.
The change in emphasis matters more than the change in figures. When the exemption was small, GST planning was about rationing it. At the current level, very few families will pay the tax, and the risk has shifted from paying it to tripping it — a trust drafted decades ago whose beneficiaries have now moved a generation down, or an allocation never made because nobody expected the tax to matter. The tax is rarer and the mistakes are quieter.
Exam focus
Generation assignment is the reliable question. Work it in order: is the person a lineal descendant of a grandparent of the transferor or the transferor’s spouse — if so, count the tree. Has the person ever been married to the transferor or to a lineal descendant — if so, take that generation. Only if neither applies do you reach § 2651(d) and the 12½ and 37½ year bands.
Expect the predeceased parent rule as a fact pattern in which a grandchild’s parent has died. Expect the § 2611(b)(1) exclusion for direct tuition and medical payments.
On the estate tax side, know that adjusted taxable gifts are added to the base, and know the § 2035(b) gross-up — including that it reaches gift tax paid by the spouse.
Check yourself
1. A donor pays $900,000 of gift tax on a gift made 14 months before her death. What is the effect on her gross estate?
Answer: It is increased by the $900,000. IRC § 2035(b) adds any gift tax paid by the decedent or the decedent’s spouse on gifts made during the 3-year period ending at death.
2. A 68-year-old transfers property to his 26-year-old daughter. Is she a skip person?
Answer: No. She is a lineal descendant of a grandparent of the transferor, so IRC § 2651(b) assigns her by counting generations on the family tree — one generation below him. The age bands in § 2651(d) apply only where the family rules do not assign a generation.
3. A transferor makes a gift to his grandson. The grandson’s mother, the transferor’s daughter, died last year. Is this a generation-skipping transfer?
Answer: No. Under IRC § 2651(e) the grandson is treated as moving up a generation because his parent died before the transfer, so he is one generation below the transferor and not a skip person.
4. How is the generation-skipping transfer tax rate determined?
Answer: The applicable rate is the maximum federal estate tax rate multiplied by the inclusion ratio for the transfer (IRC § 2641(a)). It is flat, not graduated.
5. A grandmother pays her grandson’s tuition directly to his college. Is that a generation-skipping transfer?
Answer: No. IRC § 2611(b)(1) excludes any transfer that, if made inter vivos, would not be a taxable gift by reason of § 2503(e) — which covers tuition paid directly to the educational organization.
Change log
- Initial draft. Covers what lifetime gifts do to the estate tax — the IRC § 2001(b)(1)(B) add-back of adjusted taxable gifts and the § 2035(b) gross-up for gift tax paid within three years of death — and the third transfer tax: the § 2611 definitions, the § 2613(a) skip person test, generation assignment by family under § 2651(b) and by age only under § 2651(d), the § 2651(c) and (e) spouse and predeceased parent rules, the flat § 2641 rate and the § 2631 exemption.