Advanced Estate Planning
Spousal Lifetime Access Trusts (SLATs)
A Spousal Lifetime Access Trust allows one spouse to make a completed gift to an irrevocable trust while preserving indirect access to the trust assets through the other spouse's beneficiary interest. Used carefully, it is one of the most effective tools for removing assets from a taxable estate while maintaining a degree of family access.
The Concept
What a SLAT is — and what it is not.
A Spousal Lifetime Access Trust is an irrevocable trust established by one spouse (the donor spouse) for the benefit of the other spouse (the beneficiary spouse) and, typically, descendants. The donor spouse makes a gift to the trust — often using some or all of the federal gift and estate tax exemption — and the gift is complete for transfer tax purposes. The assets leave the donor spouse's taxable estate.
The beneficiary spouse can receive distributions from the trust during their lifetime, which gives the donor spouse indirect access to the trust assets as long as the marriage continues. This is the feature that distinguishes a SLAT from a straightforward gift to an irrevocable trust — the donor spouse retains a degree of indirect access through the beneficiary spouse.
A SLAT is not an asset protection trust in the traditional sense. Its primary purpose is estate tax planning — removing assets from the taxable estate while preserving family access. Asset protection is a secondary benefit that depends on the trust's structure, the governing law, and the jurisdiction's treatment of self-settled trusts.
The SLAT is most powerful when implemented before the federal estate and gift tax exemption is reduced. The current exemption — $15 million per person, $30 million per married couple in 2026 — is scheduled to sunset at the end of 2025 under current law, though legislative changes could affect this timeline. Gifts made under the current exemption are not clawed back if the exemption is later reduced.
How It Works
The mechanics of a SLAT.
The Gift
The donor spouse transfers assets to the trust. The transfer is a completed gift for federal gift tax purposes, which means it uses some or all of the donor spouse's lifetime gift and estate tax exemption. If the gift is within the exemption, no gift tax is due at the time of the transfer.
The Beneficiary Spouse
The beneficiary spouse is a discretionary beneficiary of the trust. The trustee can make distributions to the beneficiary spouse for health, education, maintenance, and support — or on a broader standard, depending on the trust's terms. The beneficiary spouse's access to the trust is through the trustee's discretion, not a direct right.
Descendants as Beneficiaries
Most SLATs also name the couple's descendants as beneficiaries. Assets remaining in the trust at the beneficiary spouse's death can pass to descendants free of estate tax, potentially for multiple generations depending on the trust's terms and the applicable generation-skipping transfer tax rules.
The Trustee
The donor spouse cannot serve as trustee of a SLAT without risking inclusion of the trust assets in the donor spouse's taxable estate. An independent trustee — a corporate trustee or a trusted individual who is not the donor spouse — is required. The trustee's discretion over distributions is a key feature of the structure.
Income Tax Treatment
A SLAT is typically structured as a grantor trust for income tax purposes, meaning the donor spouse continues to pay income tax on the trust's income. This is generally a feature, not a bug — the donor spouse's payment of income tax on trust income is an additional tax-free gift to the trust beneficiaries, allowing the trust assets to grow without being reduced by income tax.
Key Risks and Limitations
What can go wrong with a SLAT.
Divorce
If the donor spouse and beneficiary spouse divorce, the beneficiary spouse retains their interest in the trust — and the donor spouse loses indirect access to the trust assets. A SLAT that was designed to preserve family access becomes an irrevocable gift to a former spouse. This is the most significant risk of the structure and must be considered carefully before implementation.
Death of the Beneficiary Spouse
If the beneficiary spouse predeceases the donor spouse, the donor spouse loses indirect access to the trust assets. The trust continues for the benefit of descendants, but the donor spouse can no longer benefit from the trustee's distributions to the beneficiary spouse. This risk can be partially addressed through life insurance or by structuring the trust to allow distributions to descendants who can then support the donor spouse — but these solutions have their own limitations.
Reciprocal Trust Doctrine
If both spouses establish SLATs for each other — a common planning approach — the IRS may apply the reciprocal trust doctrine to uncross the trusts and include the assets in each spouse's taxable estate. The doctrine applies when two trusts are interrelated and leave the settlors in approximately the same economic position as if they had each retained the assets. To avoid the doctrine, the two trusts must be meaningfully different — different trustees, different beneficiary classes, different distribution standards, different funding dates, or different asset types.
Loss of Step-Up in Basis
Assets transferred to a SLAT during the donor spouse's lifetime do not receive a step-up in income tax basis at the donor spouse's death. This can result in significant capital gains tax when the trust sells appreciated assets. The tradeoff between estate tax savings and the loss of step-up in basis is an important part of the planning analysis.
Asset Protection Limitations
A SLAT is not a self-settled asset protection trust. The donor spouse is not a beneficiary of the trust, so the trust assets are generally not reachable by the donor spouse's creditors. However, the beneficiary spouse's interest in the trust may be reachable by the beneficiary spouse's creditors, depending on the trust's terms and the governing law. A SLAT with a spendthrift provision provides more protection for the beneficiary spouse's interest than one without.
Asset Protection Connection
How SLATs relate to asset protection.
A SLAT removes assets from the donor spouse's taxable estate and, as a result, from the donor spouse's personal balance sheet. Assets held in the trust are generally not reachable by the donor spouse's creditors — because the donor spouse is not a beneficiary of the trust. This is a meaningful asset protection benefit, even though asset protection is not the primary purpose of the structure.
The beneficiary spouse's interest in the trust is a different matter. A creditor of the beneficiary spouse can potentially reach the beneficiary spouse's interest — but a well-drafted spendthrift provision limits that reach to distributions actually made, not the trust corpus. The trustee's discretion over distributions is an important protection for the beneficiary spouse's interest.
For clients who want both estate tax planning and asset protection, a SLAT can be combined with other structures — a domestic asset protection trust, an offshore trust, or a holding company — to address both objectives. The coordination of these structures requires careful planning to avoid unintended interactions.
The Exemption Window
Why timing matters for SLATs.
The 2026 exemption is $15 million per person / $30 million per married couple. Legislative changes could affect the sunset timeline. This is not tax advice — consult with your tax counsel.
The federal estate and gift tax exemption is $15 million per person in 2026 — $30 million per married couple. This exemption is scheduled to sunset at the end of 2025 under current law, reverting to approximately $7 million per person (indexed for inflation). Legislative changes could affect this timeline, but the uncertainty itself is a planning consideration.
Gifts made under the current exemption are not clawed back if the exemption is later reduced. A married couple that funds two SLATs with $30 million in assets before the exemption sunsets has permanently removed that wealth from their taxable estates — regardless of what happens to the exemption afterward.
The window for this planning is not unlimited. Implementing a SLAT requires time — drafting, trustee engagement, asset transfer, and funding. Clients who are considering this planning should begin the conversation well before any anticipated exemption change.
Frequently Asked Questions
What clients ask about SLATs.
The exemption window
will not stay open indefinitely.
Jim Fletcher works with estate planning counsel to coordinate SLAT planning with asset protection structures. The consultation is confidential and without obligation.