What a trust actually is
A trust is not an entity you join or a product you buy. It is a relationship among three roles, written down and enforceable. The grantor (or settlor) creates the trust and puts property into it. The trustee holds legal title to that property and is bound to manage it under the trust’s terms. The beneficiaries are the people who get the benefit of it. One person can hold more than one of those roles — in an ordinary revocable living trust the grantor is usually also the trustee and the first beneficiary — and the whole art of trust planning is deciding which roles you keep and which you give away.
Trusts are creatures of state law: what a trustee may do, how a trust may be modified, and what a beneficiary can compel are set by the law of the governing state and by the document itself. Federal tax law then answers two separate questions on its own terms — who is taxed on the trust’s income, and whether the property is still counted in your estate when you die. Those two questions run through the rest of this page, and they are why the revocable / irrevocable distinction matters more than the label on the cover page.
Revocable or irrevocable
This is the distinction the rules in this section turn on, and it is not about how the trust is named. It is about whether you kept the power to undo it.
A revocable trust is still, for tax purposes, yours. Because you keep the power to revoke and take the assets back, you remain the owner for income-tax purposes — the trust is ordinarily a grantor trust while you retain that power (IRC § 676) — and the assets remain in your gross estate (IRC §§ 2036–2038). Because they remain in your gross estate, they still receive a basis adjustment at death (IRC § 1014). Moving an asset in is a change of title, not a federal income-tax event — though state-law consequences such as transfer or documentary-stamp tax, homestead and property-tax status, insurance, and mortgage terms can still change, so they are worth confirming before you retitle anything.
An irrevocable trust is a gift to the extent you let go. Moving an asset into a trust is a completed gift only to the extent you have relinquished dominion and control over it (Treas. Reg. § 25.2511-2); to that extent it is reportable on Form 709 and charged against your annual exclusion and lifetime exemption (IRC § 2501; § 2503; § 2010), and the annual exclusion generally requires a present interest. Whether the asset then leaves your gross estate at all, and whether it keeps or loses the date-of-death basis adjustment, depends on the retained-interest rules of §§ 2036–2038 and the categories of § 1014 — not on the word “irrevocable” alone.
| Question | Revocable trust | Irrevocable trust | Authority |
|---|---|---|---|
| Who pays income tax while you live? | You — ordinarily a grantor trust | Depends on the retained powers | IRC § 676; subpart E generally |
| Is the property in your gross estate? | Yes | Only if a retained interest or power reaches it | IRC §§ 2036–2038 |
| Basis adjustment at death? | Yes — the property is in the estate | Turns on the statute’s categories, not the label | IRC § 1014 |
| Is funding it a gift? | No | Yes, to the extent dominion and control are given up | Treas. Reg. § 25.2511-2; IRC §§ 2501, 2503, 2010 |
| Can you simply change your mind? | Yes — that is what revocable means | Not by revoking; other exits depend on the terms and state law | Trust instrument and governing state law |
Sources: the Internal Revenue Code sections linked above (U.S. House Office of the Law Revision Counsel) and Treas. Reg. § 25.2511-2 (eCFR). The first four rows restate rules set out and cited at length in the trust-funding cluster; the last row’s exits from an irrevocable trust are covered on unwinding an ILIT. Nothing in this table is state-specific advice — trust law is state law.
Paper until it owns something
Signing a trust and never funding it is a costly and well-documented failure — the trust-funding cluster devotes a page to how it happens and how it surfaces. A trust controls the property it owns and the property that becomes payable to it under a valid beneficiary designation or contract. Property that is neither owned by nor payable to the trust passes by its own route — joint ownership, a beneficiary designation, a contract, a will, or intestacy — and a revocable living trust drafted to avoid probate avoids nothing for a house still deeded to you personally at death.
Funding is where the work is, and the method differs by asset, because the law of title differs by asset: real estate moves by a new recorded deed, accounts by re-registration, business interests by written assignment. Some assets should generally stay out. An IRA is an individual account — assigning one to a trust during life can be treated as a distribution (IRC § 408 contemplates an IRA owned by an individual), and employer plans follow their own plan terms and the federal anti-alienation rule (29 U.S.C. § 1056(d)) rather than one uniform rule. A deferred annuity owned by a non-natural person generally loses its tax deferral and is taxed each year (IRC § 72(u)), subject to the exceptions the statute itself enumerates.
Read: funding a trust, in plain English → · Retitling by asset type → · The funding mistakes that undo a plan →
Which trust does which job
“Trust” is a structure, not a product, and the named varieties are simply that structure pointed at a particular problem. Here are the ones this site covers in depth, each with the job it does and the page that treats it properly. Where a trust belongs to another topic — Medicaid, charitable planning — the detailed page lives in that cluster rather than being duplicated here.
| Trust | The job it does | Covered in |
|---|---|---|
| Revocable living trust | Keeps titled property out of probate and says who takes it, while you keep full control and full tax ownership | Funding a trust |
| Irrevocable life insurance trust (ILIT) | Keeps a life-insurance death benefit out of the taxable estate by keeping the incidents of ownership away from you (IRC § 2042) — subject to the three-year rule when an existing policy is moved in (IRC § 2035(a)) | The ILIT cluster |
| Medicaid asset-protection trust (MAPT) | Can put assets beyond Medicaid spend-down and estate recovery — if funded far enough ahead of the need for care | Asset-protection trusts |
| Charitable remainder / lead trust | Splits an asset between a charity and a private beneficiary, one taking the income stream and the other the remainder (IRC § 664) | CRTs and CLTs |
| Spousal lifetime access trust (SLAT) | Can move assets out of one spouse’s estate while the other spouse retains indirect access — with its own risks | ILIT vs. the alternatives |
Each row summarizes a page in this site’s clusters and links to it; the statutory authority is cited in place on the linked page. Naming a trust as the beneficiary of a retirement account or an annuity is a separate decision with its own rules — see the beneficiary audit and naming a trust as an annuity’s beneficiary.
What a trust does not do
Trusts are sold more enthusiastically than they are explained, so the honest limits are worth stating plainly.
- A revocable trust saves no federal tax. Not federal income tax (§ 676), not federal estate tax (§§ 2036–2038). State-law consequences are a separate question — transfer or documentary-stamp tax, homestead and property-tax status can change on funding, in either direction, and are worth confirming locally. What a revocable trust does buy is probate avoidance for the property it owns, privacy, and a plan that keeps working if you become unable to manage your affairs.
- A trust does not quietly override a beneficiary form. A retirement account, an annuity, or a life-insurance policy passes by its designation, and the designation and governing plan or contract usually control at death — though the result is not uniform across ERISA plans, IRAs, annuities, and insurance policies, and several rules can change it, so no designation is absolute (Kennedy v. Plan Administrator for DuPont Sav. & Inv. Plan, 555 U.S. 285 (2009) (ERISA plan-document context); see 29 U.S.C. §§ 1055, 1056(d)). Naming a trust in the document while the form still names someone else is how a plan comes apart; the beneficiary audit sets out the competing rules in full.
- Irrevocability is the price, not a formality. The tax result of an irrevocable trust comes from genuinely giving up dominion and control (Treas. Reg. § 25.2511-2). Arrangements that keep the benefit and the control are the ones §§ 2036–2038 exist to catch.
- A trust does not replace a will. Anything never moved into the trust still passes by its own route, which is why a plan is usually a trust and a will, not one instead of the other.
- Creditor protection is not a question this page answers. What a trust does or does not shield from creditors turns on the state, the kind of trust, and the timing of the transfer. This site addresses it only where a specific page does — for Medicaid, on the asset-protection trusts page — and offers no general rule here.
None of that makes trusts bad. It makes them specific: each one is a tool for a particular problem, and the more useful question is less “should I have a trust?” than “which problem am I solving, and is this the instrument that solves it?”
Common questions
What is the difference between a revocable and an irrevocable trust?
Whether you can take the property back. Keep the power to revoke and you remain the owner for federal income-tax purposes — the trust is ordinarily a grantor trust while you retain that power (IRC § 676) — the assets stay in your gross estate (IRC §§ 2036–2038), and they still receive the basis adjustment at death (IRC § 1014). Give up dominion and control and the transfer is a completed gift to that extent (Treas. Reg. § 25.2511-2), reportable on Form 709 and charged against your annual exclusion and lifetime exemption (IRC §§ 2501, 2503, 2010). Whether the asset then actually leaves your gross estate, and whether it keeps or loses the basis adjustment, turns on the retained-interest rules of §§ 2036–2038 and the categories of § 1014 — not on the word “irrevocable” in the document's title.
Does a trust avoid estate tax?
Not by itself. A revocable living trust does not: because you keep the power to revoke it, its assets remain in your gross estate under IRC §§ 2036–2038. An irrevocable trust can move value out of a taxable estate, but only to the extent you have genuinely relinquished dominion and control (Treas. Reg. § 25.2511-2) and only if the retained-interest rules do not pull the property back. The question can be moot in any event: for deaths in 2026 the federal basic exclusion amount is $15,000,000 per person (IRC § 2010(c)(3), as amended by Public Law 119-21; IRS, “What's New — Estate and Gift Tax”), so if the whole estate sits comfortably under that, there is no federal estate tax to avoid.
I signed my trust — isn't it done?
No. A trust controls the property it owns and the property that becomes payable to it under a valid beneficiary designation or contract. Until an asset is retitled into the trust's name — a deed re-recorded, an account re-registered, a business interest assigned — or validly made payable to it, the trust does not control it. Signing and funding are two separate acts, and the second is the one people skip.
Should I put my retirement accounts into a trust?
Generally not during your life, and the reasons differ by account. Assigning an IRA to a trust can be treated as a distribution, potentially making the whole balance taxable that year (IRC § 408 contemplates an IRA owned by an individual). Employer plans such as 401(k)s and 403(b)s are governed by their own plan terms and federal anti-alienation rules (29 U.S.C. § 1056(d)), so they are handled separately rather than under one uniform rule. These accounts generally pass by beneficiary designation, and whether to name a trust as the beneficiary is a separate and deliberate decision covered on the retirement-account pages.
Sources & methodology
Methodology & sources
This page is a section index, and it deliberately introduces no figure or rule of its own. Each tax rule, figure, and legal conclusion on it is restated from a page this site already publishes — the two trust clusters below, and, where a trust belongs to another topic, the Medicaid, charitable, and retirement-account clusters — and cited here to the same primary source that page cites: the Internal Revenue Code (U.S. House Office of the Law Revision Counsel), the United States Code, Treasury regulations (eCFR), federal case law, and the IRS’s own published figures. Statutory links point to the official government source rather than an unofficial mirror. The connective explanation between those rules — what the three roles are, how the pieces fit together, which question each section answers — is written for this page and asserts no rule of its own.
The “last verified” date above is derived, not typed: it is the oldest verification date among every page this hub summarizes, so this page can never present itself as fresher than its sources, and it advances automatically when those pages are re-verified. It is therefore older than this page’s own publication date, which is the point — publishing a summary is not re-verifying the sources. See our editorial standards.
This page is educational and is not legal or tax advice. It has not yet been reviewed by an outside attorney; when a licensed trust-and-estate attorney reviews it, the reviewer’s name and credentials will appear in the byline, per our review policy. Trust law is state law and the right answer is fact-specific — use this to know which questions to ask a qualified advisor, not as a substitute for one.
Last verified July 19, 2026.