Can a trust save taxes? Revocable and irrevocable trusts, foreign trusts and the 2026 estate tax explained

You can change or revoke a revocable trust at any time, so tax law treats it as you: income tax and estate tax don't change, and the main benefit is avoiding probate. Assets in an irrevocable trust generally no longer belong to you, which is what can move them, and their future growth, out of your estate. The trade-off is that you give up control.

When clients ask whether a trust will save them tax, we start by separating the two:

• Revocable living trust: You usually serve as trustee and use the assets as before. At death, a successor trustee distributes them under the trust's terms without going through probate. In North Carolina, probate runs through the county clerk of superior court, takes time and is public, and real estate in other states can mean a separate proceeding in each one. A living trust avoids that.
• How a revocable trust is taxed: It generally uses your Social Security number, its income goes on your 1040, and no separate Form 1041 is filed. At death, the assets are in your estate, and heirs generally get a basis step-up to fair market value.
• Irrevocable trust: Moving assets in is generally a gift, using your annual exclusion or lifetime exemption (reported on Form 709). Later growth stays out of your estate, but you can't simply take the assets back.
• An irrevocable trust can still be a grantor trust: Tax law looks at the powers you keep, not the label. An irrevocable trust can be deliberately designed so that you still pay its income tax, as the next section explains.

A grantor trust's income goes on the grantor's own return and the trust itself pays no income tax. A nongrantor trust is a separate taxpayer that files Form 1041: income it keeps is taxed at trust rates, and income it distributes is taxed to the beneficiaries. Trust brackets are extremely compressed; in 2026, taxable income above $16,000 is taxed at 37%.

• How to tell: If the grantor or spouse keeps powers such as revoking, changing beneficiaries, borrowing or swapping assets, IRC §§671–679 can make it a grantor trust. A revocable trust is always a grantor trust.
• Reporting a grantor trust: Income and deductions go on the grantor's 1040, and the trust generally doesn't pay its own tax. An intentionally defective grantor trust (IDGT) uses this on purpose: the grantor pays the trust's income tax, which is effectively an extra transfer to the children each year that isn't a gift.
• Reporting a nongrantor trust: A Form 1041 every year if gross income is $600 or more (or there's any taxable income), due April 15 for a calendar-year trust with a 5½-month extension available. Income distributed to beneficiaries, up to distributable net income (DNI), is deducted by the trust and reported by the beneficiaries from their Schedule K-1 (see our guide at yclcpa.com/k1).
• The 65-day rule: A nongrantor trust can elect to treat distributions made in the first 65 days after year-end as made in the prior year, which helps balance tax between the trust and its beneficiaries.
• 3.8% net investment income tax: Undistributed investment income of a nongrantor trust is subject to 3.8% on adjusted gross income above the start of the top bracket ($16,000 in 2026). For a single individual the threshold is $200,000.

Example (hypothetical numbers, to show the method): A nongrantor trust earns $50,000 of interest in 2026. After the $100 exemption, taxable income is $49,900.

• All kept in the trust: Federal income tax is $3,851 + ($49,900 − $16,000) × 37% ≈ $16,400. Add NIIT of ($50,000 − $16,000) × 3.8% ≈ $1,290, for about $17,700 in total.
• All distributed to a 25-year-old child with no other income: The trust deducts the distribution and owes essentially nothing. The child reports $50,000 of interest; after the 2026 single standard deduction of $16,100, taxable income is $33,900 and federal income tax is about $3,820.
• Keep in mind: Investment income of children under 19, or full-time students under 24, may fall under the kiddie tax at the parents' rates. And once distributed, the money belongs to the child, so distributions have to fit the trust's purpose.

The One, Big, Beautiful Bill, signed in July 2025, set the lifetime estate and gift exemption at $15 million per person for 2026, indexed after that, with no sunset date. Transfers between U.S. citizen spouses are unlimited, and portability lets a surviving spouse use the unused exemption. Most families won't owe federal estate tax, but the rules change completely when a spouse isn't a U.S. citizen or the owner is a nonresident alien.

• Lifetime exemption: $15 million per person in 2026, shared between gifts and estate; the generation-skipping transfer (GST) exemption is also $15 million. The top rate above it is 40%. The law has no expiration date, though Congress can always change it.
• Annual exclusion: $19,000 per recipient in 2026 with no Form 709 needed; married couples can elect gift splitting for $38,000 per recipient. Gifts above that go on Form 709 and use lifetime exemption, usually without tax due. Tuition paid directly to a school and medical bills paid directly to a provider don't count.
• Portability: The unused exemption of the first spouse to die (DSUE) can pass to the survivor, but only if a timely Form 706 makes the election. If no 706 was otherwise required, the election can generally be made up to 5 years after death (Rev. Proc. 2022-32). Many families miss this step.
• Gifts to a non-citizen spouse: There's no unlimited marital deduction; only $194,000 a year is excluded in 2026, and the rest uses lifetime exemption.
• A non-citizen surviving spouse and the QDOT: When a U.S. citizen or resident dies leaving property to a spouse who isn't a citizen, the marital deduction requires a qualified domestic trust (QDOT). Estate tax is deferred until principal is distributed or the surviving spouse dies. A QDOT needs at least one trustee who is a U.S. citizen or a U.S. corporation, and the election is made on Form 706. Special rules apply if the spouse becomes a citizen before the 706 is filed.
• Nonresident aliens: Parents in China without a green card owe U.S. estate tax only on U.S.-situs assets such as U.S. real estate and shares of U.S. companies, but the exemption is only $60,000 and the excess is taxed at up to 40%. There's no U.S.–China estate tax treaty. Parents who hold a U.S. home or brokerage account directly often overlook this.

These are different designs of irrevocable trust, used to move insurance, assets or growth out of an estate, or to combine charity with income. An attorney designs and drafts them; we look at the gift tax, income tax and filings for each, and whether it actually pays off for your family.

First decide whether it's a foreign trust or a U.S. trust, then whether it's a grantor trust. In a foreign grantor trust set up by parents in China (non-U.S. persons), the income belongs to the parents, and distributions to U.S. children are generally treated as gifts from the parents, but the children still file Form 3520. After the parents die, it usually becomes a foreign nongrantor trust, and distributions of income accumulated in earlier years are taxed under the throwback rules with an interest charge. A foreign trust with a U.S. grantor also files Form 3520-A.

• Foreign or domestic: A trust is a U.S. domestic trust only if a U.S. court can exercise primary supervision and U.S. persons control all substantial decisions. If a parent in China is trustee or protector, or can veto distributions or replace the trustee, the trust is usually foreign.
• When a foreign person is the grantor: IRC §672(f) is narrow. Generally there are two cases: the parent can take the assets back (revocable), or during the parent's lifetime distributions can go only to the parent and spouse. Other designs are usually foreign nongrantor trusts, even though the parents put in the money.
• Distributions from a foreign grantor trust to U.S. children: For income tax, they're treated as coming directly from the parents, so they're generally gifts with no income tax. The child reports them in Part III of Form 3520 and attaches the Foreign Grantor Trust Beneficiary Statement from the trust.
• Throwback tax on foreign nongrantor trusts: Current-year income distributed that year is taxed normally. Distributions of income accumulated in earlier years (accumulation distributions) are taxed as ordinary income, losing capital gain rates, plus an interest charge that can bring the total close to the distribution itself. Planning for what happens after the parents die usually has to start before.
• A U.S. domestic trust: Designed as a U.S. trust with a U.S. trustee, it generally avoids throwback issues and files Form 1041 like any U.S. trust. When parents wire money into it from abroad, the trust, as a U.S. person, generally files Form 3520 too if gifts from foreign persons exceed $100,000.
• Heavy penalties: Failing to report a foreign trust distribution costs the greater of $10,000 or 35% of the distribution; failing to report a foreign gift costs 5% per month up to 25%; a missing Form 3520-A costs the greater of $10,000 or 5% of the trust assets.
• Due dates: Form 3520 is due with your individual return (generally April 15, extendable to October 15). Form 3520-A is due the 15th day of the 3rd month after the trust's year-end (generally March 15).

For the thresholds and how to fill out Form 3520 for gifts from foreign persons, see our guide at yclcpa.com/gift.

Description: First check whether it's a U.S. trust, then whether it's a grantor trust; the right column shows what the U.S. children and the trust file.

Situation	Trust type	Who pays income tax	What gets filed in the U.S.
A U.S. court supervises and U.S. persons control all substantial decisions	U.S. domestic trust (usually nongrantor)	The trust on what it keeps; the children on what's distributed	Trust files Form 1041 and state returns, children get K-1s; Form 3520 for gifts from foreign persons over $100,000
Foreign trust; the parent can revoke, or only the parents receive distributions during their lifetime	Foreign grantor trust (foreign grantor)	The parents (under nonresident rules; U.S.-source income is taxed in the U.S.)	Children report distributions in Part III of Form 3520, generally as gifts
Foreign trust that doesn't meet the row above, or the parents have died	Foreign nongrantor trust	The trust; U.S. children pay on current-year income distributed to them	Children file Form 3520 Part III; accumulated income brings throwback tax and interest
A U.S. person (for example, a child who has immigrated) puts assets into a foreign trust	Foreign grantor trust (U.S. grantor)	The U.S. grantor	Grantor files Form 3520; the trust files Form 3520-A (March 15)

North Carolina has no estate or inheritance tax. Trust income tax is filed on Form D-407 when the trust has North Carolina-source income or income for the benefit of a North Carolina resident, at 3.99% for 2026. A trust that's entirely a grantor trust doesn't file a separate North Carolina trust return. The 2019 Kaestner decision limits North Carolina from taxing undistributed trust income based only on a beneficiary living in the state.

• Who files D-407: A trust that files a federal 1041 and has North Carolina-source income or income for the benefit of a North Carolina resident beneficiary. Calendar-year returns are due April 15.
• Nonresident beneficiaries: Interest, dividends, gains and other intangible income for the benefit of out-of-state beneficiaries generally isn't taxed by North Carolina. Residence is tested on the last day of the trust's tax year.
• Kaestner: If a beneficiary lives in North Carolina but has no right to demand distributions and may never receive them, the state can't tax undistributed income on that basis alone. It still can when the trustee is in the state, the trust is administered there, or income is actually distributed to a resident.
• Beneficiaries' state tax: North Carolina resident beneficiaries report distributions on their own D-400 at 3.99%, with credit for tax the trust paid to other states under the rules.
• Choosing a state: Trustee location and administration affect state tax. States with no income tax, such as South Dakota and Nevada, come up often, but a North Carolina beneficiary or trustee still calls for a careful look.

If your assets are modest, your family is straightforward, you have no out-of-state real estate and no cross-border issues, a will plus up-to-date beneficiary designations is often enough. An irrevocable trust set up just to save tax can cost more in lost control, annual returns and trustee administration than it saves.

• Estate tax alone: Below the $15 million per-person exemption, most families owe no federal estate tax, and North Carolina has none.
• Retirement accounts and life insurance: 401(k)s, IRAs and life insurance pass by beneficiary designation without a living trust. Naming a trust as beneficiary needs careful drafting under the retirement account rules.
• Income kept in a nongrantor trust: 37% starts at $16,000, so keeping money in the trust is much costlier than distributing it.
• Ongoing costs: Count the annual 1041, K-1s, state returns, trustee fees and bookkeeping.
• A trust that's never funded: If the house and accounts never get retitled into the living trust, it doesn't do its job and probate still happens.

The estate planning attorney picks the trust structure, drafts the documents, retitles assets and handles probate if needed. YCL handles the tax side: comparing income, gift and estate tax across options, preparing Forms 709, 1041, K-1, 3520, 3520-A and North Carolina returns, and working with the attorney, trustee and financial advisor.

Description: Left to right in time order, with who handles each step and what comes out of it.

Stage	Estate planning attorney	YCL (CPA)	Output
1. Planning	Learns the family's goals and recommends trust types	Models estate, gift and income tax; compares grantor and nongrantor designs; for cross-border families, foreign vs. U.S. trust	Options with tax comparison
2. Drafting and signing	Drafts the trust, wills and powers of attorney	Reviews tax provisions (grantor powers, distribution terms, trustee location)	Signed trust documents
3. Funding	Retitles real estate and accounts	Gets an EIN for a nongrantor trust; prepares Form 709	EIN letter, Form 709
4. Each year	Answers legal questions	Bookkeeping, Form 1041, K-1s and D-407; Forms 3520 / 3520-A for foreign trusts; year-end and 65-day distribution planning	Returns and K-1s
5. After death	Administers the estate and handles probate if needed	Final individual return, estate income tax return (Form 1041), Form 706 including portability and QDOT elections	Form 706, Form 1041

Start with your goal (avoiding probate, caring for children, protecting assets, reducing estate tax), each family member's status (U.S. citizen, green card holder, nonresident alien) and where the assets are. Then decide whether you need a trust and which kind.

• Situation A: a U.S. citizen or green card family with a few million in assets and property in North Carolina and another state. Usually a revocable living trust plus a will, mainly to avoid probate; federal estate tax is unlikely. Remember to fund the trust.
• Situation B: assets near or above $15 million ($30 million for a couple). Consider SLATs, IDGTs or dynasty trusts to use the exemption and move growth out; we model income and gift tax while the attorney drafts.
• Situation C: a spouse who isn't a U.S. citizen. Only $194,000 a year passes gift-tax-free, and a QDOT comes into play at death. Plan around whether the spouse will naturalize or stay in the U.S.
• Situation D: parents in China who want to provide for children in the U.S. Decide between a foreign and a U.S. trust and who serves as trustee. With a foreign grantor trust, plan ahead for throwback tax after the parents die. If the parents hold a U.S. home or stocks directly, look at the $60,000 estate tax exemption.
• Situation E: an existing foreign trust already making distributions. Confirm the trust type, file any missed Forms 3520, then file on time each year and get the beneficiary statement from the trustee.