A grantor trust is taxed as if it doesn’t exist — its income flows through to the person who created it, and its assets typically remain in that person’s estate. A non-grantor trust is a separate taxpayer that files its own return and generally sits outside the creator’s estate. That single split, between a grantor trust and a non-grantor trust, drives who pays the income tax, whether the assets count toward the federal estate tax exemption, whether creditors can reach the property, and what basis the beneficiaries inherit.
Who Pays the Income Tax
With a grantor trust, the grantor pays. Trust income lands on the grantor’s personal Form 1040 at individual rates, and in the simplest reporting method the trustee just gives financial institutions the grantor’s name and Social Security number so income is reported directly to the grantor.1Internal Revenue Service. Abusive Trust Tax Evasion Schemes – Questions and Answers No separate trust return is required.
A non-grantor trust is its own taxpayer. It obtains an Employer Identification Number and files Form 1041 every year. Income distributed to beneficiaries is passed through on Schedule K-1 and taxed to them; income the trust keeps is taxed at the trust level.2Internal Revenue Service. About Form 1041, US Income Tax Return for Estates and Trusts
Compressed Brackets Make Retained Trust Income Expensive
Trusts hit the top federal rate almost immediately. For 2026, a non-grantor trust’s income is taxed at:3Internal Revenue Service. 2026 Form 1041-ES
- 10% on the first $3,300
- 24% from $3,300 to $11,700
- 35% from $11,700 to $16,000
- 37% above $16,000
An individual doesn’t reach 37% until roughly $626,000 of taxable income. A non-grantor trust reaches it at $16,000. If the trust earns $50,000 and keeps it, the tax bill is far higher than if the same income were taxed to an individual beneficiary. That is why distribution timing matters so much in non-grantor trusts: pushing income out to beneficiaries in lower brackets can save thousands each year.
The Hidden Advantage of Paying Tax on a Grantor Trust
Paying the trust’s income tax personally sounds like a burden, but for a grantor trust that has been structured to sit outside the estate, it works the other way. Every dollar the grantor pays in tax on trust income is a dollar that leaves the grantor’s estate without being treated as an additional gift. The trust compounds without the drag of its own tax bill. For high-net-worth families, that quiet, ongoing transfer can be worth more over time than the tax itself costs.
What Happens to the Assets at Death
Estate Inclusion
Most grantor trusts, and every revocable living trust, keep the assets inside the grantor’s taxable estate. If the grantor can revoke the trust or continues to enjoy the property, the full value is pulled back in at death.4Office of the Law Revision Counsel. 26 US Code 2036 – Transfers With Retained Life Estate For 2026, the federal estate tax exemption is $15 million per individual after Congress raised it through the One, Big, Beautiful Bill signed on July 4, 2025, with a top rate of 40% on the excess.5Internal Revenue Service. Whats New – Estate and Gift Tax
A non-grantor trust generally removes assets from the estate. The transfer in is treated as a completed gift, reported on Form 709, and it either uses part of the lifetime gift exemption or triggers gift tax. Transfers up to $19,000 per recipient per year fall inside the annual gift tax exclusion and use none of the lifetime amount.5Internal Revenue Service. Whats New – Estate and Gift Tax Once assets are out, all future appreciation is also out. Move $2 million of stock into a non-grantor trust, watch it grow to $10 million, and none of the $8 million gain counts toward the estate.
Basis Step-Up
This is the trade-off that surprises people. Assets in a revocable grantor trust get a step-up in basis at the grantor’s death, just like assets owned outright. Stock bought for $50,000 and worth $500,000 at death passes to beneficiaries with a $500,000 basis, and the built-in gain disappears.
Assets in an irrevocable grantor trust that are excluded from the estate do not get that step-up. The IRS confirmed the point in Revenue Ruling 2023-2: if the property isn’t in the decedent’s gross estate, basis carries over.6Internal Revenue Service. Revenue Ruling 2023-2 Non-grantor trusts follow the same rule for the same reason: no estate inclusion, no step-up. The estate tax savings can dwarf the embedded capital gains cost, but for low-basis, high-appreciation assets the math sometimes points the other way.
Creditor Protection
A revocable grantor trust offers almost none. Because the grantor can revoke it and pull the property back, courts treat those assets as still belonging to the grantor. A judgment, a bankruptcy filing, or a divorce can reach everything inside.
An irrevocable non-grantor trust does substantially more work here. Once the grantor has permanently given up control, creditors chasing the grantor generally cannot reach trust assets, because the trust is a separate legal entity and the property belongs to it. State law affects how strong that protection is, and a small number of states allow self-settled asset protection trusts, but the underlying logic is consistent: if the grantor cannot get the assets back, neither can the grantor’s creditors.
Beneficiaries are a separate question. A creditor pursuing a beneficiary may reach distributions as or after they are made, and spendthrift clauses that block a beneficiary from assigning or pledging their interest add another layer whose strength also varies by jurisdiction.
What Actually Makes a Trust One or the Other
Sections 671 through 679 of the Internal Revenue Code list the powers that turn a trust into a grantor trust. If the grantor keeps any of them, the IRS ignores the trust as a separate taxpayer.7Office of the Law Revision Counsel. 26 USC 671 – Trust Income, Deductions, and Credits Attributable to Grantors and Others as Substantial Owners The common triggers:
- Power to revoke the trust and take the assets back. Every revocable living trust is a grantor trust for this reason.
- Power to change beneficiaries, held by the grantor or by someone with no adverse stake.
- Power to substitute trust property for other property of equivalent value.8Office of the Law Revision Counsel. 26 US Code 675 – Administrative Powers
- Ability to borrow from the trust without adequate security or fair interest.8Office of the Law Revision Counsel. 26 US Code 675 – Administrative Powers
One is enough. A non-grantor trust is what you have when the grantor has surrendered all of them: no revocation, no swap, no redirection, no favorable borrowing. The trustee holds every meaningful power, and the grantor is financially separated from the property.
The Intentionally Defective Grantor Trust
A trust can be irrevocable for estate tax purposes and still be a grantor trust for income tax purposes. That gap is the entire point of the intentionally defective grantor trust, or IDGT. The document is drafted so the assets leave the grantor’s estate, while a single 671–679 power, most often the power to substitute assets of equivalent value, keeps the income tax bill with the grantor.8Office of the Law Revision Counsel. 26 US Code 675 – Administrative Powers
The result: the grantor pays the trust’s income tax from personal funds, the trust compounds free of income tax and outside the estate, and those tax payments are not treated as additional gifts. IDGTs are frequently used with a sale of appreciated assets to the trust in exchange for a promissory note; because the grantor and the trust are the same person for income tax purposes, the sale itself is not a taxable event. The drafting is technical and belongs with an experienced estate planning attorney.
Which Structure Fits Which Situation
A revocable grantor trust fits people whose main goals are avoiding probate and keeping flexibility. Assets stay in the estate, tax filing stays on the personal return, and the terms can change whenever life does. For estates comfortably below the $15 million federal exemption, that usually covers what needs to be covered, and the step-up in basis at death is a real benefit worth keeping.
A non-grantor trust fits people whose main goals are estate tax reduction, creditor protection, or long-term wealth transfer. The costs are real: loss of control, compressed brackets on any income the trust retains, and no basis step-up on the way out. For families with taxable estates, moving appreciating assets out early tends to win on the numbers, because every year of future growth escapes estate tax.
The IDGT sits between the two, aimed at families who want the estate-tax benefits of an irrevocable structure while letting the grantor absorb the income tax so the trust can compound faster. It costs more to set up and to maintain, and it only makes sense at wealth levels where the transfer benefit outweighs that overhead. For any irrevocable trust, working out whether it will be a grantor trust or a non-grantor trust for income tax purposes matters as much as working out whether it removes assets from the estate.
What Changes When the Grantor Dies
Grantor trust status ends at the grantor’s death, because the grantor is no longer a taxpayer. A revocable trust typically becomes irrevocable at that point, gets its own EIN, and begins filing Form 1041, either on its own or combined with the estate under a Section 645 election.9Internal Revenue Service. Instructions for Form 1041 – US Income Tax Return for Estates and Trusts An IDGT keeps its irrevocable structure but loses the income tax pass-through and starts filing as a non-grantor trust. In either case, the compressed brackets are now in play, and distribution planning becomes the lever that keeps the tax bill manageable.