Grantor Trust

A grantor trust is a trust in which the person who creates and funds the trust, the grantor, retains certain powers or interests over the trust assets. Because of this retained control, the IRS treats the trust as a disregarded entity for income tax purposes, meaning the grantor reports all trust income, deductions, and credits on their personal tax return.

How a grantor trust works

Under Internal Revenue Code Sections 671–679, a trust qualifies as a grantor trust when the grantor retains one or more specified powers, such as the power to revoke the trust, control the beneficial enjoyment of assets, or substitute assets of equivalent value.

Because the grantor is treated as the owner for tax purposes, no separate trust income tax return is required. All taxable income flows through to the grantor's individual Form 1040. The trust itself holds legal title to the assets, but the IRS does not recognize it as a separate taxable entity while those powers remain in place.

Key characteristics

• Pass-through taxation: Trust income is taxed at the grantor's individual rate, not at compressed trust tax rates.
• Retained powers: Grantor trust status requires at least one qualifying power under the Internal Revenue Code. Removing all such powers terminates that status.
• Flexible structure: A trust can be a grantor trust for income tax purposes while still being treated as a completed gift for estate and gift tax purposes, a distinction central to strategies like the intentionally defective grantor trust (IDGT).
• No separate tax filing: The trust does not file its own income tax return while grantor trust status is in effect.

Why a grantor trust matters

When the grantor pays income taxes on trust earnings, those payments reduce the grantor's taxable estate without being treated as a taxable gift. Over time, this allows trust assets to grow without being eroded by taxes paid at the trust level.

Because the grantor and the trust are treated as the same taxpayer, transactions between them, such as loans or asset sales, are generally not taxable events, making grantor trusts useful for transferring appreciating assets out of an estate.

Common types of grantor trusts

• Revocable living trust: The most common grantor trust. The grantor retains the right to revoke or amend the trust at any time. Assets pass to beneficiaries outside of probate at the grantor's death.
• Intentionally defective grantor trust: The IDGT is an irrevocable trust that qualifies as a grantor trust for income tax purposes but not for estate tax purposes. The grantor pays income taxes on trust earnings, allowing assets to grow inside the trust while reducing the taxable estate.
• Grantor retained annuity trust (GRAT): The grantor transfers assets into the trust and receives fixed annuity payments for a set term. Any appreciation above the IRS hurdle rate passes to beneficiaries free of gift tax.
• Spousal lifetime access trust (SLAT): An irrevocable trust that benefits a spouse. The grantor's indirect access through the spouse may trigger grantor trust status.

Limitations to know

Grantor trust status is not permanent. It ends at the grantor's death, upon relinquishment of qualifying powers, or if trust terms change, at which point the trust becomes a separate taxable entity and must file its own return. State income tax treatment varies; some states do not conform to federal grantor trust rules, which can create unexpected state-level tax obligations. Consult an estate planning attorney before you attempt to establish any grantor trust structure.

Related terms

• Revocable trust: A trust the grantor can modify or revoke; always classified as a grantor trust for income tax purposes.
• Irrevocable trust: A trust that generally cannot be changed after creation; it may or may not qualify as a grantor trust depending on retained powers.
• Trustee: The person or entity responsible for managing trust assets according to the trust document.
• Beneficiary: The individual or entity designated to receive trust assets or income.
• Probate: The court-supervised process for distributing a deceased person's estate—grantor trusts help assets pass outside this process.

FAQs about grantor trust

What is the difference between a grantor trust and a non-grantor trust?

In a non-grantor trust, the trust is a separate taxable entity with its own tax ID that files its own income tax return. Trust income is taxed at compressed trust rates rather than flowing through to the grantor's personal return, which can make grantor trust status more tax-efficient for income-producing trusts.

What happens to a grantor trust when the grantor dies?

The retained powers that created grantor trust status terminate, and the trust becomes a separate taxable entity requiring its own employer identification number and income tax filings. For revocable trusts, assets are included in the grantor's taxable estate at death; for irrevocable grantor trusts structured to exclude assets from the estate, the successor trustee continues administering the trust for the named beneficiaries.

Does a grantor trust need its own tax ID number?

While grantor trust status is in effect, the trust generally uses the grantor's Social Security number for tax reporting. A separate employer identification number is required only when grantor trust status ends, typically at the grantor's death or upon relinquishment of the qualifying retained powers.