The generation-skipping transfer tax is a separate federal tax, on top of the estate and gift taxes, on money that moves down two or more generations at once — a grandparent to a grandchild, most commonly, or into a trust that will eventually pay grandchildren. It exists because without it a wealthy family could park assets in a long-running trust, skip a whole generation of estate tax, and pass the same money forward untaxed at each level.
It lives in Chapter 13 of the Internal Revenue Code, sections 2601 and following. As of 2026 the rate is a flat 40%, equal to the top estate tax rate, and it applies on top of any gift or estate tax on the same transfer, which is why untangling it late is expensive.
Very few households ever owe it. Under the law enacted in 2025, the basic exclusion amount, and with it the GST exemption, is $15 million per person for 2026, indexed for inflation after that; confirm the current figure with your CPA and the Form 709 instructions, because this number has moved repeatedly and is scheduled to keep moving. But many households meet the term anyway, because it shows up in trust language and in tax forms long before anyone owes anything. This page is organized around those documents. It is education, not tax advice.
In This Article
- Document One: The Trust Agreement Your Parents Signed
- Document Two: The Form 709 Your CPA Files After A Gift
- Document Three: The Estate Tax Return And Form 712
- Document Four: The Crummey Letter In Your Mailbox
- The Taxes It Gets Confused With
- Where Your Life Insurance Policy Fits
- Frequently Asked Questions

Document One: The Trust Agreement Your Parents Signed
The most common first encounter is a trust instrument that uses the phrase “GST exempt” or “generation-skipping” in its title or in a division-of-shares article. Irrevocable life insurance trusts, dynasty trusts and many credit shelter trusts contain this language.
Three definitions carry most of the meaning, and they are worth learning before you call the attorney.
A skip person is a beneficiary two or more generations below the person who made the transfer — a grandchild, a great-niece — or, for someone unrelated by blood or marriage, a person more than 37.5 years younger than the transferor. That 37.5-year figure is a real statutory line, not a rule of thumb.
A direct skip is a transfer straight to a skip person. A taxable termination happens when the last non-skip interest in a trust ends, for example when a child who was receiving income from a trust dies and the grandchildren take over. A taxable distribution is a payment from a trust to a skip person while non-skip interests still exist.
Also look for the predeceased ancestor rule, which moves a grandchild up a generation for GST purposes if their parent, your child, died before the transfer. Families hit by that tragedy often owe no GST tax at all, and do not know it.
Document Two: The Form 709 Your CPA Files After A Gift
Form 709, the United States Gift (and Generation-Skipping Transfer) Tax Return, is where allocation of GST exemption is reported. Schedule D of that return is the generation-skipping portion. The return is due April 15 of the year after the gift, and it follows a personal income tax extension.
The mechanic that causes the most trouble is automatic allocation. The code allocates GST exemption automatically to certain transfers, and a taxpayer may elect out of automatic allocation or elect in for a particular trust. Getting that election wrong — especially electing out on a trust that will in fact benefit grandchildren, or failing to elect in on one that will — is the mistake that shows up decades later as a trust with an inclusion ratio it should not have.
The inclusion ratio is the number to look for. A trust with an inclusion ratio of zero is fully GST exempt and can, in a state that permits long-lasting trusts, run for generations without another GST charge. A ratio of one means the full 40% applies at the next generation-skipping event. A ratio between the two means partial exposure, and it usually means someone funded an exempt trust with additional money without allocating exemption to it.
If you are a beneficiary or a successor trustee, ask the attorney or CPA one question in writing: what is this trust’s inclusion ratio, and what document established it.
Document Three: The Estate Tax Return And Form 712
At death, generation-skipping transfers are reported on Form 706, the United States Estate (and Generation-Skipping Transfer) Tax Return. Schedule R and Schedule R-1 are the GST schedules; Schedule R-1 covers direct skips from a trust and shifts payment responsibility onto the trustee.
Life insurance appears on the estate return on its own schedule, and the carrier supplies Form 712, the Life Insurance Statement, which reports the death benefit or, for a lifetime transfer, the policy’s value. If a policy is owned by a generation-skipping trust, both forms are in play at once, and the sequencing matters. A trustee who has never seen a Form 712 should ask the carrier for one early; carriers are routinely slow with them and the estate return has a nine-month filing deadline from date of death, extendable by six months.
A practical note that saves families money: an estate return may be worth filing even when no tax is due, in order to preserve estate tax portability for a surviving spouse. Portability, however, applies to the estate tax exclusion and not to the GST exemption — unused GST exemption is not portable between spouses. That asymmetry surprises almost everyone and it is a genuine planning point to raise with counsel.
| Where it appears | What to look for | Who to ask |
|---|---|---|
| Trust agreement | GST exempt language, skip person definitions, predeceased ancestor rule | The drafting attorney or successor trustee |
| Form 709, Schedule D | Whether exemption was allocated, and any election in or out | The CPA who filed it |
| Form 706, Schedules R and R-1 | Direct skips at death; who is liable for the tax | The estate’s attorney |
| Form 712 from the carrier | Policy value reported for a trust-owned policy | The insurance carrier, requested early |
| Crummey withdrawal letters | Annual notices, dated, kept in the trust file | The trustee |

Document Four: The Crummey Letter In Your Mailbox
If a grandparent funds an irrevocable life insurance trust each year to pay premiums, the trustee typically sends beneficiaries a withdrawal notice, universally called a Crummey letter after the 1968 Ninth Circuit case that blessed the technique. The letter gives each beneficiary a brief window — commonly 30 days — to withdraw their share of the contribution.
Its purpose is gift tax: a present-interest withdrawal right is what qualifies the contribution for the annual gift tax exclusion. What it does not automatically do is solve the GST side. Gifts that qualify for the annual exclusion are not automatically GST-exempt when made to a trust; a separate set of rules governs when a transfer to a trust is treated as a direct skip qualifying for the annual exclusion, and they are narrower than most people assume.
The action item for a beneficiary who receives these letters: keep them. The trustee needs a documented chain of notices, and a decade of missing Crummey letters is a real audit exposure. The action item for a trustee: confirm with the CPA each year that GST exemption is being allocated as intended, and keep the Form 709 copies in the trust file.
The Taxes It Gets Confused With
Estate tax is charged once, at each generation, on what a decedent owned. The GST tax is charged in addition, when a generation is skipped. They stack.
Gift tax applies to lifetime transfers and shares the same exclusion amount, but has its own annual exclusion. A single gift to a grandchild can be a taxable gift and a direct skip at the same time.
State inheritance tax is levied on the recipient rather than the estate, exists in only a handful of states as of 2026, and typically taxes by relationship class rather than by generation. A grandchild is often in the most favorable class, which is the opposite of how the federal GST tax treats them.
The transfer-for-value rule is an income tax rule about selling a life insurance policy, unrelated to generation skipping despite the similar-sounding name. See how the transfer-for-value rule works.
Non-probate transfers such as a transfer on death deed avoid probate but are not exempt from any of these taxes.
Where Your Life Insurance Policy Fits
There are two real intersections and one that does not exist.
Real intersection one: the trust owns the policy. If a generation-skipping ILIT owns a policy on your life, the decision to keep, reduce, surrender or sell it is not yours. It belongs to the trustee, who owes fiduciary duties to beneficiaries across generations. A trustee facing an underperforming universal life policy with rising costs has an obligation to look at the alternatives rather than let it lapse quietly. Our page on trust-owned life insurance covers the trustee’s side of that decision.
Real intersection two: proceeds from a sale stay where the policy was. If a GST-exempt trust sells a policy, the cash lands inside that trust and remains subject to its terms and its inclusion ratio. It does not become the grantor’s money and it does not become the beneficiaries’ money. Any taxable gain is taxed inside the trust, at compressed trust rates, unless it is distributed.
What does not exist: the GST tax has no effect at all on whether a policy you own personally is a good candidate for a sale. If you own the policy outright and no trust or grandchild-directed beneficiary designation is involved, this term is simply not part of your decision, and any adviser who invokes it to push a transaction is reaching.
If you want to know what a policy is actually worth before a family conversation about trusts and grandchildren, send the policy cover page for a free, no-obligation review or call (732) 978-9575. Take the number to your own estate attorney and CPA; we do not give tax advice and cannot tell you what a trust document permits.
Frequently Asked Questions
Who actually pays the generation-skipping transfer tax?
It depends on the type of transfer. On a direct skip made during life, the transferor generally pays. On a taxable distribution, the recipient pays. On a taxable termination, the trustee pays from trust assets. Direct skips from a trust are reported on Schedule R-1 of Form 706, which places the liability on the trustee. Confirm with the estate attorney.
How much can pass before the GST tax applies?
The GST exemption tracks the basic exclusion amount. Under the law enacted in 2025 that figure is $15 million per person for 2026, indexed thereafter. Above the exemption the rate is a flat 40%. This number has changed several times in the last decade, so confirm the current amount with your CPA or the Form 709 instructions before planning.
Is unused GST exemption portable to a surviving spouse?
No. Estate tax portability lets a surviving spouse use a deceased spouse’s unused estate tax exclusion if a timely Form 706 is filed. GST exemption does not work that way; unused GST exemption is lost at death. That asymmetry is one of the more common surprises in second-marriage and blended-family planning and is worth raising with counsel.
My child died before my parents. Do my children still face this tax?
Possibly not. The predeceased ancestor rule moves a grandchild up a generation for GST purposes when their parent, the transferor’s child, died before the transfer. That can remove the transfer from generation-skipping treatment entirely. It is fact-specific and depends on timing and on how the trust is drafted, so have an estate attorney confirm it in writing.
Does selling a life insurance policy trigger GST tax?
Not by itself. A sale is an income tax event, not a generation-skipping event. If the policy is owned by a GST-exempt trust, the proceeds stay inside that trust and remain subject to its terms and inclusion ratio, with any gain taxed at trust rates unless distributed. If you own the policy personally, the GST tax is not part of the decision.
What is an inclusion ratio and why do people keep mentioning it?
It measures how much of a trust is exposed to GST tax. A ratio of zero means fully exempt; a ratio of one means the full 40% applies at the next skip; anything in between means exemption was not fully allocated, usually because someone added money without a matching allocation on Form 709. Ask the trustee what the ratio is and which return established it.
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Related Reading
- What Is The Gift Tax Annual Exclusion
- What Is Estate Tax Portability
- What Is The Transfer For Value Rule
- What Is A Transfer On Death Deed
- What Is Trust Owned Life Insurance
- Viatical Settlement Tax Exclusion Explained
- What Is A Life Settlement
- How Much Is My Policy Worth
Pine Lake Legacy does not purchase life insurance policies and does not provide legal, tax, or investment advice. Information provided is for educational purposes only. Eligibility for any option, including life settlements, is not guaranteed and depends on individual circumstances, policy terms, underwriting, and market conditions. Consult independent legal, tax, or financial professionals before making decisions regarding a life insurance policy.