Spousal Lifetime Access Trusts
Transferring wealth while preserving a measure of family access.
For married couples, one problem appears repeatedly: how do we move appreciating assets outside one spouse’s taxable estate without completely cutting the family off from the transferred wealth?
A SLAT is designed to address that tension. One spouse funds an irrevocable trust for the other spouse and, often, descendants. Properly structured and administered, the assets and their appreciation may stay outside the donor spouse’s taxable estate while the beneficiary spouse keeps access to distributions under the trust’s terms.
- Funds the trustDonor spouse
- Holds the assetsIrrevocable trust
- May receive distributionsBeneficiary spouse + descendants
An irrevocable trust created by one spouse for the other
A SLAT is an irrevocable trust created by one spouse for the benefit of the other, often with children or later descendants as additional or remainder beneficiaries.
Transfers assets to the trust
Holds the assets under its own terms
May receive distributions under the trust’s standards
A SLAT is not a way to put property into an irrevocable trust while treating it as a personal bank account. The objective is a genuine transfer that preserves an appropriate degree of access for the beneficiary spouse.
The feature that makes a SLAT attractive, continued access through a spouse, is also why it must be designed carefully.
The opportunity is the growth, not the gift
Consider a married couple with $30 million of wealth. One spouse owns a business interest worth $6 million today that the family believes could become worth $20 million.
Keep the interest
If it grows to $20 million inside the owner’s estate, the entire $20 million may be relevant to future estate-tax exposure.
Move the $6 million interest now
The transfer may use part of the donor’s exclusion, but the planning opportunity is potentially the $14 million of growth that follows.
That is the economic principle underlying many advanced lifetime-transfer strategies.
An intermediary structure between donor and family
If the same individual simply gives the $6 million asset to an adult child, the transfer may accomplish an estate-planning objective, but the couple has generally given up access to the property. A SLAT places a trust between donor and family, so the beneficiary spouse can potentially receive distributions under the trust agreement.
That can give a married couple more comfort with substantial lifetime planning. Ownership has been transferred, but the beneficiary spouse has not necessarily surrendered all economic benefit.
I gave the assets away, except I can still use them whenever I want.
The donor spouse must respect the transfer.
That first characterization can undermine the very objective the trust was designed to accomplish. The economic reality should be consistent with the legal structure.
- Trust formalities matter
- Distribution standards matter
- Trustee independence matters
- The source of the transferred property matters
- Actual administration matters
Available exemption is not a reason to use it automatically
These 2026 federal figures give many families substantial lifetime-transfer capacity. The better questions are:
- Which assets should be transferred?
- How much should be transferred?
- What appreciation potential exists?
- What liquidity must remain outside the trust?
- What basis consequences will result?
A SLAT is a strategy, not a reason to transfer assets indiscriminately.
What goes in, and what stays out
Assets with appreciation potential
- Closely held business interests
- Family LLC interests
- Partnership interests
- Investment portfolios
- Private investments
- Certain investment real estate interests
- Assets expected to appreciate substantially
- Assets positioned before a potential liquidity event
An asset expected to stay flat offers far less transfer-tax leverage than one expected to multiply in value.
Enough to stay financially independent
- Personal living expenses
- Retirement needs
- Taxes
- Healthcare
- Debt obligations
- Real-estate expenses
- Business capital requirements
- Emergency liquidity
- Lifestyle expectations
A transfer that leaves the donor dependent on distributions to the beneficiary spouse creates practical and planning problems.
Advanced estate planning should improve financial resilience, not undermine it.
Funding a SLAT is a lifetime transfer
Depending on the structure, funding can be a completed gift that consumes part of the donor spouse’s gift and estate tax exclusion. Significant transfers frequently require a federal gift-tax return, Form 709, and the IRS may expect appraisals and documentation for the property transferred. For business, partnership and real-estate interests, valuation belongs in the planning process from the start.
Annual exclusion gifts and SLATs
The annual exclusion generally applies only to gifts of present interests. A gift of a future interest does not qualify just because it is below $19,000. Certain trusts use carefully designed withdrawal rights, often called Crummey powers, to address annual-exclusion treatment. That is a technical drafting and administration issue.
Do not assume that a transfer to a trust is automatically an annual-exclusion gift.
When the donor pays the trust’s income tax
Many SLATs are designed so the donor spouse is treated as the trust’s owner for federal income-tax purposes. The donor may then remain responsible for tax on trust income even though the trust assets are meant to stay outside the donor’s estate.
Keeps compounding
Pays the income tax personally
Donor’s estate shrinks while more capital stays in trust
The IRS has ruled that when a grantor treated as owner pays the income tax on the trust’s income, that payment is not itself an additional gift to the trust beneficiaries.
But tax reimbursement requires care
If the donor’s tax bill on trust income becomes substantial, can the trust simply reimburse the donor? In Revenue Ruling 2004-64, the IRS distinguished two kinds of arrangement:
A retained right to be repaid
Can create estate-inclusion problems under §2036.
Trustee discretion to reimburse
Standing alone, and absent other problematic facts or arrangements, was treated differently.
Small drafting differences can produce significant estate-tax consequences.
Estate-tax savings vs. capital-gains exposure
Transferring this asset may move substantial future appreciation outside the estate. But Revenue Ruling 2023-2 confirms that, under the facts it addresses, assets in an irrevocable grantor trust that are not included in the grantor’s gross estate do not receive a §1014 basis adjustment merely because the grantor was treated as owner for income-tax purposes.
This is why sophisticated estate planning cannot be reduced to getting assets out of the estate.
Powers of substitution, or swap powers
When the trust instrument includes an appropriately designed power of substitution, the grantor may be able to exchange assets of equivalent value with the trust.
Highly appreciated asset
Positioned where potential estate inclusion could produce more favorable basis treatment.
Higher-basis asset of equal value
Owned personally by the grantor before the exchange.
As the grantor ages, advisers may evaluate such an exchange, subject to the trust instrument, fiduciary obligations, valuation requirements and tax rules. This is sophisticated planning that requires careful legal and tax implementation.
Estate-tax planning and basis planning should be managed together throughout the life of the trust.
Planning for the realities of family life
The beneficiary spouse dies
The donor’s indirect connection to the trust exists only through marriage to a beneficiary. If the beneficiary spouse dies, that access may disappear, and the trust does not become the donor’s property again.
- Life expectancy
- Other family assets
- Insurance
- Beneficiary provisions
- Trustee discretion
- Long-term liquidity
- The donor’s independent resources
A SLAT should be financially sustainable even if access through the spouse ends.
The couple divorces
Depending on the trust’s language and governing law, a former spouse may remain a beneficiary. Modern drafting may address how “spouse” is defined and what happens on divorce.
That is why a SLAT should never be created solely because the tax mathematics look attractive. A trust meant to last decades must account for the realities of family life.
When both spouses create SLATs for each other
This might seem to double the planning opportunity. But if the trusts are effectively mirror images that leave both spouses in substantially the same economic position as before, the structures can be challenged.
- Timing
- Assets
- Beneficiaries
- Trustees
- Distribution provisions
- Powers
- Other material terms
Dual-SLAT planning requires careful analysis by experienced estate-planning counsel.
Trustee selection shapes tax and governance
- Independent individual
- Family member
- Corporate trustee
- Beneficiary spouse
- Co-trustees
- Directed-trust structure
The beneficiary spouse may sometimes serve in a fiduciary role, but distribution powers and standards must be carefully drafted to avoid unintended tax consequences. For significant wealth, the decision should weigh:
Tax consequences + Asset expertise + Family dynamics + Administrative capability + Long-term governance
The SLAT against the alternatives
Simplicity vs. continued access
An outright gift is a simple, direct transfer, but the donor family generally loses access to the property. A SLAT offers potential estate removal plus potential distributions to the beneficiary spouse.
SLAT tradeoffMore complexity and administration, and dependence on the marriage and the trust’s structure
Spousal access vs. split ownership
A SLAT’s defining feature is spousal access. An IDGT’s is the deliberate separation of income-tax ownership from estate-tax ownership, and may involve selling appreciating assets to the trust for a promissory note.
OftenNot SLAT or IDGT: the architecture may use characteristics of both
Exemption vs. retained annuity
A SLAT typically uses exemption for a completed gift while preserving potential spousal access. A GRAT retains an annuity for a term and aims to transfer appreciation above the §7520 hurdle with potentially limited gift-tax cost.
The comparisonUse exemption and preserve access, or retain an annuity and transfer excess growth
Not mutually exclusive
A SLAT focuses on access for a spouse. A dynasty trust focuses on long-term multigenerational ownership. A well-designed trust may begin with a spouse as beneficiary and continue for descendants over several generations.
ThenGST planning becomes increasingly important
How SLAT planning changes with scale
$10 million family
Sometimes the answer is to waitA married entrepreneur’s private company represents $3 million of a $10 million net worth. If the business has extraordinary appreciation potential, the family might evaluate moving part of it into a SLAT. But with a $15 million per-individual federal exclusion in 2026, immediate federal estate-tax exposure may not justify aggressive planning by itself.
Expected growth + State estate taxes + Basis + Liquidity + Business succession + Family objectives
$25 million family
Transfer growth, not cash- Business
- Investment real estate
- Portfolio
- Other assets
The couple may have significant federal exclusion available today and substantial appreciation potential. Instead of transferring cash, they might transfer interests expected to grow rapidly.
Which assets should be inside the estate ten years from now, and which should be outside it?
$50 million family
Architecture rather than productsSLAT
Preserves family access.
IDGT sale
Addresses additional appreciation.
GRAT
Transfers growth from another asset.
ILIT
Provides liquidity.
Dynasty trust
Addresses future generations.
Family LLC
Organizes ownership and management.
At this level the family compares several techniques together rather than relying on a single one.
$100 million family
A family wealth systemThe SLAT may be one component among many the family must coordinate:
- Multiple trusts
- Business entities
- Investment partnerships
- Real estate
- Life insurance
- Charitable planning
- GST allocation
- Trustee structures
- Family governance
- Beneficiary education
How do we reduce estate tax?
How should this family own, control, transfer and govern $100 million across generations?
When a SLAT may not be appropriate
- The donor needs the transferred assets personally
- The family lacks sufficient outside liquidity
- Divorce risk makes the structure problematic
- The beneficiary spouse’s health materially affects the objective
- Highly appreciated assets create unfavorable basis tradeoffs
- The expected estate-tax benefit is small
- The family cannot reliably administer the trust
- The transfer would interfere with business control
- The donor is uncomfortable making a genuine irrevocable transfer
Advanced planning should never begin by assuming a SLAT must be created. It should begin by identifying the problem.
Can we move this asset outside the estate?
Should we?
Before implementing a SLAT, families should examine:
- What are we transferring?
- What will it likely be worth in 10 or 20 years?
- How much exemption will we consume?
- What basis will leave the estate?
- How much independent wealth will the donor retain?
- How will the spouse access trust assets?
- What happens if the spouse dies?
- What happens upon divorce?
- Who controls distributions?
- Should GST exemption be allocated?
- Who ultimately receives the property?
- How does the trust fit with the family’s business, real estate and investment strategy?
A SLAT should not exist because it is fashionable. It should exist because it solves a clearly identified family wealth problem.
We view SLAT planning as part of a larger wealth architecture. The trust must be considered alongside
Estate Tax + Gift Tax + GST Tax + Income Tax + Basis + Investments + Business Interests + Real Estate + Insurance + Liquidity + Family Governance
Our role is to help families identify planning issues, compare alternatives, model the economic implications and coordinate the appropriate professional team.
Implementing a SLAT requires qualified estate-planning counsel and appropriate tax professionals. Trust documents, legal opinions, gift-tax filings, valuations and tax advice should be provided by the appropriate licensed professionals.
The Intentionally Defective Grantor Trust
What if someone can give up ownership for estate-tax purposes but intentionally remain the owner for income-tax purposes?
The SLAT moved appreciating assets outside the estate while preserving potential family access. The IDGT lets us examine:
Gift vs. Sale
Funding the trust by gift compared with selling assets to it.
IDGT vs. SLAT
Split tax ownership compared with spousal access.
IDGT vs. GRAT
Two ways to move appreciation, compared.
Grantor vs. Non-Grantor Trust
How income-tax status changes the outcome.
Estate Exclusion vs. §1014 Basis
Removing growth compared with preserving a basis adjustment.
Promissory Notes and AFRs
How applicable federal rates shape an installment sale.
Including why paying a trust’s income tax can itself become a wealth-transfer strategy.
Book a Confidential Consultation
Discuss whether a SLAT fits your family’s estate, business, real estate, insurance and multigenerational wealth strategy with ARH Global Advisors.