What an ILIT Is
An irrevocable life insurance trust is a legal structure designed to own a life insurance policy on your life in a way that keeps the death benefit proceeds out of your taxable estate when you die. The trust is the owner and beneficiary of the policy. When you die, the insurer pays the death benefit to the trust — not to you, not directly to your heirs — and the trust then distributes those funds according to its terms.
Because you do not own the policy at the time of your death, the death benefit is not included in your gross estate for federal estate tax purposes. This is the core reason ILITs exist: for people whose estates may be subject to the federal estate tax (or a state estate tax), keeping a large life insurance policy out of the estate can reduce the tax bill significantly.
The word “irrevocable” is important. Once the trust is established, you cannot take it back, change its terms, or reclaim ownership of the policy. You give up control. That is the trade-off for the tax benefit. An irrevocable trust is a separate legal entity, and you are no longer the owner of what you put into it.
Why Life Insurance Is Otherwise Included in Your Estate
Most people do not realize this: if you own a life insurance policy on your own life, the death benefit is included in your taxable estate even though your heirs — not you — receive the money. The IRS includes it because you had “incidents of ownership” over the policy — the right to change beneficiaries, borrow against the cash value, assign the policy, or cancel it. Exercising those rights means you controlled the economic value of the policy, so the IRS counts the proceeds as part of your estate.
This surprises people. A $2 million term life policy on a business owner’s life pays to their spouse or children, but if the business owner owned the policy, that $2 million is added to the estate when calculating whether estate tax applies. Depending on the size of the estate and the applicable exemption, that could mean a substantial estate tax bill payable by the estate — not from the life insurance proceeds themselves (those go to the named beneficiary), but from other estate assets.
The ILIT solves this by placing ownership with the trust, not with you. If you never own the policy — if the trust purchases it from the outset — the death benefit passes entirely outside your estate.
How the Trust Owns the Policy
The trust is created by an estate planning attorney and names a trustee (not you), beneficiaries (typically your spouse, children, or both), and the terms governing how and when assets are distributed. The trust then applies for and owns the life insurance policy. Your name appears as the insured, but the trust is the policy owner and beneficiary.
Each year, you make gifts of cash to the trust. The trustee uses those gifts to pay the life insurance premium. This funding mechanism is where Crummey notices come in — more on that below.
The trustee has fiduciary responsibilities to the trust beneficiaries. They must manage the trust assets appropriately, pay premiums on time to prevent lapse, and eventually distribute the death benefit according to the trust terms when you die. Choosing a responsible trustee — often a professional trust company or a trusted family member who understands the obligation — is an important decision.
If you already own a life insurance policy and want to transfer it to an ILIT, you can do that, but the 3-year lookback rule applies. That rule is explained next.
The 3-Year Lookback Rule
If you transfer an existing life insurance policy that you own into an ILIT, and you die within three years of that transfer, the IRS pulls the death benefit back into your taxable estate as if the transfer never happened. This is the 3-year lookback rule under IRC Section 2035.
The rule exists to prevent deathbed transfers designed to avoid estate tax. If you are diagnosed with a terminal illness and rush to create an ILIT and transfer your $3 million life insurance policy into it, and you die 18 months later, the $3 million is still in your estate for tax purposes. The three-year clock has to run completely before the transfer is effective for estate tax purposes.
The way to avoid the 3-year lookback issue entirely is to have the ILIT purchase the policy from the beginning. If the trust applies for the policy and the policy is never owned by you personally, there is nothing to transfer and the lookback rule does not apply. The trust is the original owner, the death benefit was never in your estate, and there is no clock to worry about.
This is why the decision to create an ILIT is best made before purchasing the life insurance policy, not after. If you already own a policy and want to use an ILIT, you are working within the lookback constraint and need to either accept the three-year risk or explore other strategies (such as selling the policy to the trust rather than gifting it, which is a more complex approach with its own considerations).
Crummey Notices: The Annual Gift Tax Piece
The gifts you make to the ILIT to fund premiums are transfers of money into an irrevocable trust. Without a specific mechanism, those gifts would be treated as future-interest gifts under the gift tax rules — meaning they would not qualify for the annual gift tax exclusion (currently $18,000 per donor per recipient per year as of 2024). Future-interest gifts do not qualify for the exclusion because the recipient cannot access the money immediately.
Crummey notices are the mechanism that converts those gifts into present-interest gifts, which do qualify for the annual exclusion. When you make a contribution to the ILIT, the trustee sends a written notice to each trust beneficiary informing them that they have a right to withdraw their proportionate share of the contribution for a specified window — typically 30 days. This withdrawal right makes the gift a present-interest gift under tax law, qualifying for the annual exclusion.
In practice, beneficiaries almost never actually withdraw the money. They understand the purpose of the trust and why it is better to let the funds stay in the trust and pay the premium. But the legal right to withdraw must be genuine, not a sham. The beneficiaries must receive actual written notice, and the trustee must track and document the notices. Failure to send proper Crummey notices can disqualify the gifts from the annual exclusion, triggering gift tax reporting requirements or using gift tax exemption.
If your policy premium exceeds what can be covered by annual exclusion gifts, the excess is either a taxable gift (applying toward your lifetime gift and estate tax exemption) or a more complex strategy is needed. Your estate planning attorney should help you structure the funding to minimize gift tax complications.
When an ILIT Makes Sense
ILITs are most clearly useful when your estate is large enough to be subject to federal or state estate taxes. The federal estate tax applies to estates above the applicable exemption, which under current law (as extended through 2025 under the Tax Cuts and Jobs Act) is approximately $13.6 million per individual, or $27.2 million for a married couple using portability. Without legislative action, these exemptions are scheduled to roughly halve at the end of 2025, returning to approximately $7 million per individual (adjusted for inflation).
If the scheduled sunset happens and the exemption drops, significantly more estates become subject to estate tax — including many upper-middle-class families with substantial real estate, business interests, or retirement assets. Life insurance death benefits that would otherwise push an estate over the exemption threshold become a meaningful planning concern. An ILIT moves that death benefit outside the estate, reducing the taxable amount.
Many states have their own estate taxes with lower exemptions. Massachusetts and Oregon, for example, have exemptions of $2 million. Washington state’s exemption is $2.193 million. If you live in a state with a lower exemption and an estate above that threshold, an ILIT may be relevant even if your estate is well below the federal exemption.
ILITs are also used in business succession planning and by high-net-worth individuals using life insurance as an estate planning tool more broadly — for example, using a second-to-die policy to fund estate taxes at the death of the surviving spouse, keeping the policy proceeds outside the taxable estate of both spouses. This is a specific and common use case for ILITs in estate planning.
For most people with estates comfortably below the applicable exemption, an ILIT adds cost and administrative burden without a corresponding tax benefit. Naming beneficiaries directly on the policy — which also passes outside probate — accomplishes the transfer without the trust structure. The ILIT is a tool for a specific tax problem, not a general improvement over a properly beneficiary-designated policy.
What an ILIT Costs to Set Up and Administer
Setup costs vary by attorney and complexity. A straightforward ILIT drafted by an estate planning attorney typically runs $1,500 to $3,500 in legal fees. More complex situations — multiple policies, complex distribution terms, coordination with a broader estate plan — can run higher. You need an attorney; this is not a document to pull from the internet and fill in yourself. An error in the trust document or the funding mechanism can defeat the estate tax purpose entirely.
Ongoing administration costs are lower but real. The trust requires an employer identification number (EIN) from the IRS. An annual trust income tax return (Form 1041) may be required depending on trust income. Crummey notices must be sent annually, documented, and retained. If you use a professional corporate trustee, expect to pay an annual fee — typically $500 to $2,000 or more per year depending on the trust size and complexity, plus hourly charges for significant trustee decisions.
The life insurance premium itself is the largest ongoing cost and is not eliminated by the ILIT structure — it is simply paid through the trust. The ILIT does not change how the insurance is priced or underwritten. It changes who owns the policy and the resulting estate tax treatment.
Altogether, the administrative overhead of an ILIT is modest compared to the estate tax it can save on a large estate. The federal estate tax rate is 40 percent. A $3 million life insurance policy owned personally and included in a taxable estate costs the estate $1.2 million in estate taxes on that portion. The same policy owned by an ILIT costs nothing in estate tax on the proceeds. The economics are compelling when the estate tax applies. When it does not, the cost is overhead without a return.
Choosing a Trustee
You cannot be the trustee of your own ILIT — that would give you incidents of ownership over the policy and defeat the estate tax benefit. Your spouse can serve as trustee, but this raises complications if the trust is structured to benefit the spouse and in some jurisdictions can create estate inclusion issues at the spouse’s death. The cleanest choice for many families is an independent trustee: a trusted family friend who understands the responsibilities, an adult child who is not a primary beneficiary, or a professional corporate trust company.
A corporate trustee handles the administrative burden professionally — Crummey notices, tax filings, premium payments — but charges fees. An individual trustee avoids those fees but needs to understand the obligations and follow through reliably. A missed Crummey notice or a lapsed premium because the trustee forgot can create legal and tax problems that are expensive to unwind.
Whoever serves as trustee needs to know what the job involves before accepting it. Brief them clearly. Many individual trustees are surprised by the ongoing administrative requirements, especially the Crummey notice process.
The Bottom Line
An ILIT is a legitimate and effective estate planning tool for people whose estates are large enough that federal or state estate taxes are a real concern, and who have a life insurance policy that would otherwise be included in that estate. The mechanics — the irrevocability, the 3-year lookback, the Crummey notices, the trustee obligations — are real administrative commitments that require ongoing attention.
If your estate is solidly below any applicable exemption and you are not expecting it to grow above the exemption, the ILIT adds cost without a corresponding benefit. A properly beneficiary-designated life insurance policy already passes outside probate and is generally accessible quickly by your heirs without court involvement. That is sufficient for most families.
If estate taxes are a realistic concern for your situation, an ILIT should be on your list of strategies to discuss with an estate planning attorney. The conversation should include your full financial picture: total estate value, the role life insurance plays in it, whether the exemption sunset affects you, and what other strategies — such as gifting programs or charitable planning — might work alongside or instead of an ILIT. Estate planning is not a one-tool exercise, and an ILIT is most effective when it is part of a coordinated plan rather than an isolated decision.