Generation Skipping Tax: A Practical Guide for 2026

Your parents want to help the next generation, the grandchildren already live in Queens, and somebody in the family has started talking about funding a trust now so the money can skip over the kids and land where it's needed later. That instinct is common, and it can be smart, but the federal tax rules treat that move as its own category, with its own traps. The generation skipping tax is what sits in the middle of that family conversation, and if the plan involves trusts, timing, or gifts to younger relatives, the details matter more than the headline.

A lot of families hear one number and stop there. That's risky, because the planning issue isn't just the 40% federal rate under current law, it's whether a transfer is a direct skip, a taxable distribution, or a taxable termination, and whether the GST exemption was allocated correctly in the first place. The law was built to stop families from bypassing a layer of transfer tax by jumping over a generation, and the tax system still treats that as the problem it's trying to solve.

Why a Separate Tax Exists for Gifts to Grandchildren

A Queens grandparent sits at the kitchen table, looking at a draft trust that would move $10 million to grandchildren instead of passing it through the children first. On paper, that can look efficient. In the government's eyes, it can also look like a shortcut around the estate tax, which is exactly why the generation skipping transfer tax was put in place.

The policy reason is simple. Congress did not want wealthy families to dodge transfer tax by skipping the middle generation and moving wealth straight to grandchildren or more remote descendants. The tax was first enacted in 1976 to stop that kind of planning, and under current law it sits inside the transfer-tax system as a separate layer that applies at the top federal estate tax rate of 40% on taxable transfers above the exemption amount. The key point is that this tax does not replace gift tax or estate tax, it sits alongside them as a parallel rule. The Tax Policy Center's explanation of estate, gift, and generation-skipping transfer taxes makes that structure clear.

What that means in real life

If a family in Queens funds a trust for grandchildren while the children are still alive, the transfer isn't treated as some special loophole with a discount. It's tested under the GST rules on top of the rest of the transfer-tax system. That's why a plan that looks clean from an estate-tax angle can still fail if nobody checked the GST side.

Practical rule: If the plan skips the child's generation, assume the GST rules are in play until someone proves they aren't.

That's also why exemption planning has to be handled as its own discipline. A family can do a good job on estate-tax documents and still leave a future GST problem behind if the trust was never mapped for generation-skipping treatment. The result often shows up years later, when the trust starts making distributions or when an intermediate beneficiary dies.

The mental model is straightforward. Gift tax and estate tax ask whether wealth moved. The GST tax asks whether wealth moved past someone who would normally stand in the middle. Once you think about it that way, the reason for the separate tax becomes obvious. It exists to keep the middle generation from disappearing from the transfer-tax system altogether.

Defining Skip Person, Taxable Termination, and Taxable Distribution

The first mistake families make is jumping straight to the tax rate before they understand the vocabulary. In GST planning, the terms do the work. If you can identify who counts as a skip person and when a trust event becomes taxable, you can see the problem before the IRS does.

Who counts as a skip person

A skip person is usually a beneficiary who is two or more generations below the person making the transfer, which is why grandchildren are the classic example. The rules also reach certain unrelated people who are more than 37.5 years younger than the transferor, so this is not only a grandparent-to-grandchild issue. In practice, the law follows the family chain and asks whether the transfer skipped over someone who would normally stand between the transferor and the final beneficiary. Congressional Research Service guidance on GST transfer rules explains that framework plainly.

Picture the family chain as branches on a tree. A child is one branch, a grandchild is another branch lower, and a great-grandchild is a step further down. Once a transfer lands in one of those lower branches, you are in GST territory unless an exception or exemption applies.

The three taxable events

There are three events that can trigger GST tax. A direct skip is the cleanest example, because the transfer goes straight to a skip person or to a trust treated that way. A taxable distribution happens when a trust pays a skip person and the transfer is not already sheltered. A taxable termination happens when the non-skip beneficiaries' interests end, and only skip persons are left.

A trust can sit quietly for years and still carry GST exposure. The tax often shows up when the trust changes shape, not when it was created.

That is what catches families off guard. A trust may look harmless while a child is receiving income or discretionary distributions. Then the child dies, the trust continues for grandchildren, and the tax question finally arrives. In older plans, the problem may stay hidden for a long time because nobody traced what happens when the intermediate beneficiary's interest ends.

A diagram illustrating the concepts of a skip person, taxable termination, and taxable distribution for generation-skipping tax.

What to look for in a trust document

If you are reviewing a trust, start with these questions.

  • Who can benefit now? If only grandchildren or younger beneficiaries can receive the property, GST exposure is front and center.
  • What ends first? If a child's interest ends and grandchildren remain, that change can matter more than the original funding.
  • Are distributions direct or delayed? Delayed trust payouts often create the surprise, not the original transfer.

The practical takeaway is that GST law is less about labels and more about timing. A transfer can be safe today and taxable later if the trust's structure changes in the wrong way.

The 2026 Exemption and How It Moves With the Law

The exemption is usually the first number families want, but it only makes sense once you see how often it has changed. The GST exemption was $5 million per person in 2011, rose to $13.61 million in 2024, increased to $13.99 million in 2025, and was set at $15 million in 2026 under recent legislation. For a married couple, that means roughly $30 million can be sheltered before the GST tax applies, if the planning is set up correctly. Older planning writeups age quickly because the exemption moves, and families in Queens who rely on outdated trust language can easily miss that shift.

Why the volatility matters

Older trusts, older gifts, and older planning memos were often drafted under a different exemption regime. A trust that was built when the shelter was much lower may not fit the same allocation approach now, even if the documents still look sound on the surface.

That time sensitivity matters in practice. The exemption amount changes, and the planning results can change with it. A trust that looked underfunded for GST purposes a few years ago may need a fresh review now, while another trust that seemed fully sheltered on paper may still have mixed treatment if the allocation was never handled cleanly.

For New York families, this can affect more than tax math. It can affect whether an old dynasty trust still makes sense for grandchildren in Brooklyn, whether a decanting or amendment changed the GST result, and whether a trustee should treat the trust as fully exempt or partly exposed. The document date is only part of the story.

How the annual exclusion fits in

Not every transfer needs GST exemption. Some direct gifts that qualify for the gift tax annual exclusion can move without using exemption, but that only helps when the transfer really fits the exclusion rules. Once the gift is larger, or the transfer runs through a trust with future interests, the GST question comes back fast.

Allocation is the other place families get tripped up. GST exemption does not always attach automatically to a transfer. In many situations, the transferor has to allocate it affirmatively, and if that step is missed, the exemption can be lost on that transfer. Older trusts that were funded years ago and then left untouched are a common source of that problem.

A trust can also be affected by indirect skips, especially when the structure changes over time. A plan that started with a child as the current beneficiary can create a different GST result once that child's interest ends and the trust keeps going for grandchildren. That timing issue is what makes older trusts worth revisiting, even when no one has added new assets.

GST Tax Exemption Milestones
Year Per-Individual Exemption Married Couple Combined
2011 $5 million $10 million
2024 $13.61 million $27.22 million
2025 $13.99 million $27.98 million
2026 $15 million $30 million

The planning habit that saves money

The best habit is simple. Treat every older trust as if the exemption may have changed since the last time anyone reviewed it. That matters even more in 2026, because the current number is high enough to affect real planning decisions, but not high enough to let families stop checking allocations, trust timing, and beneficiary changes carefully.

Calculating the 40% Tax With Real Numbers

A direct skip to a grandchild can get expensive fast. If a grandparent gives $5 million to a grandchild and no GST exemption is allocated, the 40% GST rate produces a $2 million tax bill. The gift still counts as a transfer for estate planning purposes, so the GST cost sits on top of the rest of the transfer-tax analysis.

A four-step infographic showing how to calculate a 40% generation-skipping tax on a five million dollar gift.

A second example with a larger trust

Now take a $20 million dynasty trust with full GST exemption allocated at the start. If the exemption covers the transfer, later skips inside the trust can avoid GST tax, which is the reason families spend so much time on the initial allocation. The practical result is a trust that can keep serving grandchildren and later generations instead of turning into a tax event each time the family line changes.

The key number behind that result is the inclusion ratio. The inclusion ratio works like a dial. A setting of zero means the trust is fully sheltered. A higher setting means more of the trust is exposed to tax. The technical formula in the Code is not friendly reading, but the working point is straightforward. If the exemption was fully and properly allocated, later GST events can be covered.

Practical rule: A fully exempt trust is easier to administer later. Partial exemption leaves partial tax exposure, and that usually shows up years after the trust was drafted.

Why the married couple issue matters

Families often assume both spouses' planning fits together automatically. It does not. The exemption has to be handled for each transferor, and the allocation has to be tracked for each side of the family. A couple can have enough combined shelter on paper and still create a problem if the funding or allocation was handled inconsistently.

The cleanest way to estimate exposure is to ask three questions. Was the transfer a skip? Was exemption allocated? If not, what part of the transfer sits outside the sheltered amount? Once those answers are clear, the 40% rate stops being abstract and becomes a real number tied to a real trust event.

Filing Form 706-GS(T) and Getting the Allocation Right

Paperwork is where many GST plans fail. A trust can be drafted well, funded well, and still lose protection because the return or allocation step was missed. That's why the form mechanics matter as much as the trust language.

When the return comes into play

Form 706-GS(T) is generally tied to taxable distributions and certain trust events. If a trust makes a distribution to a skip person and GST tax is due, the filing step becomes part of the process. In the same way, a taxable termination can trigger reporting that families often don't expect until the trust's original non-skip beneficiary is gone.

The allocation issue is separate but related. During life, some direct skips can receive automatic allocation treatment, but other transfers need an affirmative election. If the wrong assumption was made years ago, the trust may not be as sheltered as the family thought.

Why old trusts need a fresh review

Older trusts are the ones I worry about most. They were often drafted before the current exemption level, before today's family structure, or before the family had the kind of asset growth that makes GST exposure worth a second look. A trust created years ago can be perfectly valid and still be administratively wrong because nobody tracked the allocation correctly at funding.

The late-allocation relief rules can help in some situations, including simplified relief under Treas. Reg. §26.2642-7 when a trust was intended to be GST-exempt but the election was missed. That's not a cure-all, and it's not something to leave until the trust is already in trouble. It's a repair tool, not a substitute for getting the original filing right.

  • Required for taxable distributions: A distribution to a skip person can create a filing obligation if GST tax is triggered.
  • Required for taxable terminations: When a trust ends in a way that leaves only skip persons, the reporting step matters.
  • Allocate by the deadline: If exemption allocation is supposed to protect the trust, it needs to happen on time.
  • Attach the right return: The filing can belong with the estate or gift tax paperwork, depending on the transfer.

The real lesson for 2026

2026 is a good year to audit old files because the exemption amount is high enough to make real differences, but not so simple that families can ignore the filings. If the trust was meant to last for grandchildren and beyond, the paperwork trail should match that intent from the start.

Planning Strategies That Pair With GST Exemption

Some structures work only if the GST exemption is handled carefully. Others become much more powerful once the exemption is allocated. The right choice depends on whether the family wants control, long-term influence, or a charitable component.

Dynasty trusts

A dynasty trust is the obvious GST planning tool for families who want assets to last across generations. It works best when the exemption is allocated cleanly, because that's what allows the trust to grow without turning later distributions into taxable events. Without the exemption, the trust may still exist, but it becomes much less efficient as a multigenerational vehicle.

Charitable lead trusts

Charitable lead annuity trusts and charitable lead unitrusts can be especially useful when a family wants to combine philanthropy with wealth transfer. The charitable interest comes first, then the remainder may flow to younger family members, sometimes including grandchildren. In that setup, GST planning matters because the remainder beneficiaries are often the target of the wealth transfer, and a missed allocation can undo the intended benefit.

Direct gifts to grandchildren's trusts

Direct gifts to a trust for grandchildren can be powerful when the family wants simplicity and less administrative drag. The trade-off is control. You get a cleaner transfer, but you also need the trust terms and allocations to be right from the beginning, because the direct structure leaves less room to fix mistakes later.

Choosing the structure that fits

The choice usually comes down to three questions.

  • Control: Who should be able to guide distributions, and for how long?
  • Tax: Is the goal to shelter growth, reduce future transfer tax, or both?
  • Family purpose: Is the transfer mainly for descendants, or does charity or business succession also matter?

A dynasty trust can be the strongest long-term GST tool, but only if the exemption allocation is handled with discipline. A charitable lead structure can create a useful bridge between philanthropy and family wealth. Direct gifting is simplest, but the least forgiving if the paperwork is sloppy.

The best planning moves are the ones that match the family's actual objective, not the trendiest label in the trust world.

New York State Considerations for NYC Families

Federal GST planning can look clean and still leave a New York problem behind. That's especially true for families in Queens, where a transfer meant to be tax-efficient for grandchildren may still run into New York estate-tax exposure if the broader plan isn't coordinated.

Why New York needs its own review

New York has an independent estate tax system with its own exemption and cliff structure, so you can't assume that a federal GST-efficient transfer is automatically state-efficient. A trust funded in a way that looks elegant for federal purposes may still create a state tax problem if the timing, situs, or beneficiary structure is wrong. The federal and state rules live side by side, and they do not forgive each other's mistakes.

For families with a New York resident spouse, sequencing matters. If one spouse loses flexibility before gifts and trust funding are coordinated, the remaining planning choices can narrow quickly. That's especially important when the family is trying to preserve both federal transfer-tax efficiency and state-level flexibility.

Trust residence can be a trap

New York residents also need to watch how trusts are treated once they are administered. A trust drafted elsewhere can still be pulled into New York tax treatment depending on how it's administered and who controls it. That trap catches families who moved, inherited, or changed trustees and assumed the old state rules stayed behind.

Practical rule: Don't let the federal plan and the New York plan drift apart. One clean document set should support both.

The practical fix is coordination, not repetition. The estate plan, trust situs, and funding sequence should be reviewed together so the GST strategy doesn't accidentally create a New York tax issue in another pocket of the plan. For NYC families, the question is rarely whether the federal GST rule applies. It's whether the federal and state pieces were designed to work together from day one.

A 90-Day Action Plan and Common Pitfalls

The fastest way to get control of GST exposure is to break the work into a short, disciplined sequence. Families don't need to solve every tax question at once, but they do need to stop relying on stale assumptions.

A practical 90-day sequence

  1. Discovery. Pull every trust instrument, schedule the beneficiaries, and identify which trusts might touch grandchildren or more remote descendants.
  2. Design. Decide whether exemption should be allocated now, whether a trust should be restructured, or whether new gifts should be held back until the plan is clear.
  3. Execution. File the required returns, fix any missed elections if relief is available, and update the estate plan so it reflects 2026 law instead of an older exemption regime.

The mistakes that show up most often

  • Using old exemption numbers: Plans built around last year's assumptions can be flatly wrong now.
  • Missing indirect skips: Trust distributions and later-term trust events are easy to overlook.
  • Ignoring old dynasty trusts: A trust can look successful and still be under-allocated.
  • Assuming portability solves it: GST exemption is a separate issue, and it doesn't travel to the surviving spouse.

The biggest mistake is delay. By the time a taxable termination happens, the family may have fewer choices than it expected. Clean records, current allocations, and a trust-by-trust review solve more problems than last-minute improvisation ever will.


Blue Sage Tax & Accounting Inc. helps New York families, family offices, and closely held business owners sort out the tax side of complex trust planning before small mistakes become expensive ones. If you're reviewing grandchildren's trusts, older allocations, or a Queens estate plan that needs to reflect current GST rules, visit Blue Sage Tax & Accounting Inc. to start a conversation about the next step.