Funding a Trust: What Actually Goes In, and How

Funding is the plan

The most expensive mistake in estate planning is not choosing the wrong trust. It is signing the right one and never funding it. A trust controls property it owns and property that becomes payable to it under a valid beneficiary designation or contract. Property not owned by or payable to the trust may pass by joint ownership, beneficiary designation, contract, a will, or intestacy; it does not automatically require probate merely because it is outside the trust. But a revocable living trust drafted to avoid probate still avoids nothing if the house is deeded to you personally at death — that asset passes through probate exactly as if the trust did not exist.

“Funding” simply means changing the legal owner of an asset from you to the trust — or, for some assets, naming the trust as the beneficiary. The method differs by asset type, and getting the method right is most of the work. The rest of this page walks through what to move, what to leave alone, and how each transfer is done.

What belongs in a trust

The assets that most often belong in a revocable living trust are the ones that would otherwise pass through probate and that carry their title in your name:

• Real estate — your home, rental property, and land, moved by a new deed naming the trustee as owner.
• Non-retirement investment and bank accounts — brokerage accounts, and often checking and savings, re-registered in the trust’s name.
• Closely held business interests — LLC membership units, partnership interests, and shares in a private corporation, transferred by assignment (subject to the entity’s operating agreement and any transfer restrictions).
• Valuable tangible personal property — art, collections, and heirlooms, assigned by a written schedule.

For an irrevocable trust the list is narrower and the stakes higher, because moving an asset in is generally a completed gift (see below). What goes into an irrevocable trust is usually chosen deliberately for a specific tax or protection goal — a life insurance policy into an ILIT, for instance — rather than swept in wholesale.

What usually stays out

Some assets should almost never be retitled into a living trust, because doing so triggers tax or defeats a benefit:

• Retirement accounts (IRAs, 401(k)s, 403(b)s). An IRA is an individual account, and assigning one to a trust during your life can be treated as a distribution — potentially making the whole balance taxable that year. Employer plans such as 401(k)s and 403(b)s are governed by their own plan terms and federal anti-alienation rules, so they are reviewed separately, not under one uniform rule. Do not change the owner of any of these without account-specific review; they generally pass by beneficiary designation, and whether to name a trust as the beneficiary is a separate, deliberate decision.
• Deferred annuities. An annuity owned by a non-natural person generally loses its tax deferral and is taxed every year (IRC § 72(u)) — a sharp trap, though the flush language following § 72(u)(1) treats a contract held by a trust as agent for a natural person as still held by a natural person (and § 72(u)(3) lists the statute’s other enumerated exceptions), covered on its own page.
• Health savings accounts. Like retirement accounts, an HSA is individually owned and passes by beneficiary designation; it is not retitled into a trust.
• Vehicles and everyday accounts, often, for practical reasons — insurance, registration, and convenience usually outweigh the small probate saving.

How each asset type moves

The mechanics differ by asset because the law of title differs by asset. This table is the map; the retitling page walks through each method step by step.

Sources: the Internal Revenue Code sections linked in each row; 12 U.S.C. § 1701j-3(d)(8) (Garn–St Germain due-on-sale exemption). Entity-transfer restrictions are governed by the asset’s own operating agreement and applicable state law.

Revocable vs. irrevocable: funding is not the same act

The single most important distinction in trust funding is whether the trust is revocable or irrevocable, because it changes whether the transfer is a taxable event. For the same distinction set beside the other trusts this site covers — and which trust does which job — see the trusts overview.

Funding a revocable living trust is not a gift and not a federal income-tax event. Because you keep the power to revoke the trust 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 under IRC § 676 — and the assets remain in your gross estate under IRC §§ 2036–2038. A revocable grantor trust ordinarily reports under your own Social Security number with no separate trust return, though Treasury regulations permit more than one reporting method (Treas. Reg. § 1.671-4), and because the assets stay in your gross estate they still receive a basis adjustment at death (IRC § 1014). Your federal income tax does not change on funding — only the title does — but state-law consequences such as documentary-stamp or transfer tax, homestead and property-tax status, insurance, and mortgage terms can still change, so confirm them before retitling.

Funding an irrevocable trust is a completed gift only to the extent you give up dominion and control. 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 the annual exclusion generally applies only to a present interest (IRC § 2501; § 2503; § 2010). That is how an irrevocable trust can remove value from a taxable estate — but whether the asset then leaves your gross estate, and whether it keeps or loses the date-of-death basis adjustment, depends on the retained-interest rules of IRC §§ 2036–2038 and the basis categories of § 1014, not simply on the “irrevocable” label (see below).

The tax that turns on funding

Three tax rules do most of the work in deciding what to fund where, and each has its own page in this cluster:

• The basis adjustment at death (§ 1014). Property acquired or passed from a decedent within a category of IRC § 1014(b) generally takes a new basis equal to its date-of-death value — usually erasing unrealized capital gain for the heirs, though the adjustment can also run downward. Revocable-trust assets, which remain in your gross estate, keep this benefit; assets in an irrevocable trust receive the adjustment only insofar as they fall within a § 1014(b) category or are included in the gross estate. The IRS confirmed in Rev. Rul. 2023-2 that assets in an irrevocable grantor trust that are not acquired or passed from the grantor under § 1014(b) and not included in the grantor’s gross estate get no adjustment — a point covered on the funding-mistakes page.
• The § 72(u) annuity rule. A deferred annuity owned by a trust generally loses its tax deferral. When it does, when the “agent for a natural person” exception saves it, and how grantor-trust status changes the answer are on the annuities-in-trust page.
• Income in respect of a decedent (§ 691). When a trust is the beneficiary of a deferred annuity or a retirement account, the built-in gain is taxed as income in respect of a decedent — no step-up, and often a compressed payout — as explained on the trust-as-annuity-beneficiary page.

None of this is a reason to avoid trusts. It is the reason funding is a decision, not a formality: the same asset can belong in one kind of trust and be a costly mistake in another. Estate planning is state-specific and fact-specific, and if you want a professional to walk your own balance sheet, our directory of estate-planning professionals lists people you can check yourself.

Common questions

Sources & methodology