A SLAT lets one spouse move assets out of both estates while the other spouse can still receive distributions. This page explains how it works, why it matters under the New York estate tax, and where the traps are.
Most married New Yorkers who ask us about gifting have the same hesitation: they want assets out of their taxable estate but are not ready to give up the income. A spousal lifetime access trust, or SLAT, is the standard answer. One spouse makes a completed gift to an irrevocable trust, the other spouse is a beneficiary, and the couple keeps an indirect line to the money for as long as the marriage and the beneficiary spouse last.
The federal exemption is now a permanent $15,000,000 per person, so the federal urgency behind SLAT planning has faded. In New York it has not. The state exclusion is $7,350,000 for 2026, there is no portability between spouses, and the cliff at $7,717,500 wipes out the exclusion entirely. For a New York couple, a SLAT is mostly about getting below the state numbers while there is still time.
Tax is not the only reason. A completed gift to a properly drafted SLAT is also outside the reach of the donor’s future creditors, and a spendthrift clause keeps the beneficiary spouse’s interest away from his or hers. Physicians, business owners and other professionals exposed to malpractice or guaranty claims often use a SLAT for that reason alone.
The donor spouse creates an irrevocable trust and funds it with his or her own separate property. The beneficiary spouse and, usually, the couple’s children and grandchildren are the beneficiaries. An independent trustee (or the beneficiary spouse, limited to an ascertainable standard) can make distributions of income and principal for health, education, maintenance and support. The donor spouse is not a beneficiary and keeps no strings on the property.
Three things happen at once. The gift uses part of the donor’s $15,000,000 federal exemption, so there is no gift tax on the way in. Future appreciation grows outside both spouses’ estates. And because the trust is a grantor trust under IRC §§ 671–679, the donor keeps paying the income tax on its earnings; that payment is not a further gift (Rev. Rul. 2004-64), so the trust compounds undrained. Our SLAT attorney page describes how we handle the drafting and funding.
New York has no gift tax. A completed gift to a SLAT therefore costs nothing at the state level on the day it is made. What matters is what the gift does at death. New York’s estate tax starts from the federal gross estate and adds back taxable gifts made within three years of death (Tax Law § 954(a)(3)). A taxable gift made more than three years before death is simply gone: it never enters the New York calculation, it never counts toward the $7,350,000 exclusion, and it never pushes the estate toward the $7,717,500 cliff.
That is the whole New York case for a SLAT. A couple with $12,000,000 in combined assets owes nothing federally, but a $12,000,000 New York taxable estate pays about $1,386,800 of state tax. Moving enough into a SLAT to bring each spouse’s estate under $7,350,000 can eliminate that tax while the family still has a beneficiary spouse who can receive distributions. New York does not allow portability, so each spouse has to use his or her own exclusion; a SLAT is one of the ways to make sure the donor spouse’s estate actually fits inside it. Our article on why New York has no gift tax but that is not the whole story walks through the add-back in more detail.
The add-back applies to taxable gifts, meaning gifts that exceed the $19,000 annual exclusion and would be reported on a federal Form 709. A SLAT gift is almost always a taxable gift, so it is exposed. If the donor spouse dies within three years of funding, the gifted amount comes back into the New York gross estate for purposes of computing the tax, and the incremental tax is treated as a debt of the estate. The 2025 amendment extended the add-back to decedents dying before January 1, 2032, so this is not going away soon.
Couples often want symmetry: each spouse funds a SLAT for the other, so each has indirect access to what the other gave away. The Supreme Court addressed exactly this in United States v. Estate of Grace, 395 U.S. 316 (1969). Where two trusts are interrelated and leave the spouses in roughly the same economic position as if each had created a trust for himself or herself, the trusts are “uncrossed” and each spouse is treated as having funded a trust for his or her own benefit. The result is inclusion in both estates, which is the opposite of the plan.
The doctrine is avoided by making the trusts genuinely different, not cosmetically different:
The donor spouse’s access to a SLAT is indirect and depends on the beneficiary spouse being alive, married to the donor, and willing to share. Each of those can change.
If the trust names the beneficiary spouse by name, a divorce leaves a former spouse as lifetime beneficiary of an irrevocable trust. A “floating spouse” clause defines the beneficiary as the person to whom the donor is married from time to time, so the interest ends at divorce. It cannot restore the donor’s own access, but it keeps a former spouse out.
When the beneficiary spouse dies, the donor’s indirect access ends and the trust continues for the descendants. We routinely pair a SLAT with life insurance on the beneficiary spouse, either owned by the SLAT itself or by a separate ILIT, so the donor has a replacement for the lost access without pulling assets back into an estate.
A second safeguard is drafting. The SLAT can give the beneficiary spouse a limited testamentary power of appointment, exercisable by will, to redirect the assets at death into a continuing trust rather than straight to the children. The trust the spouse creates can include the surviving donor as a discretionary beneficiary, since it is the beneficiary spouse, not the donor, who is making that choice. The power must be genuinely the spouse’s to exercise or not; a prearranged plan to route the money back to the donor invites the same § 2036 argument as any other implied understanding.
For clients who worry about a true emergency, the trust can give an independent person, acting in a non-fiduciary capacity, the power to lend trust assets to the donor spouse on arm’s-length terms with adequate interest. A loan is not a distribution and does not make the donor a beneficiary, but it should be used rarely and documented properly; a pattern of forgiven or unpaid loans looks like retained enjoyment.
Distributions should be made because the beneficiary spouse needs or wants them, not on a schedule designed to route money back to the donor. An understanding that the spouse will hand distributions over undermines the completed gift and invites a § 2036 argument. The donor should never be a beneficiary or a trustee with discretionary powers.
The beneficiary spouse can serve as trustee if distributions to himself or herself are limited to an ascertainable standard (health, education, maintenance and support). Broader discretion should sit with an independent trustee. The donor spouse should not be trustee. We usually add a trust protector who can replace trustees and adjust administrative terms.
Funding needs the same care:
While the donor is alive and married to the beneficiary, the SLAT is a grantor trust because the trustee can distribute income to the donor’s spouse (IRC § 677). The donor reports the trust’s income on his or her own return. That is the feature that lets the trust compound undrained, but it needs cash-flow planning, and the trust may give an independent trustee discretion, never an obligation, to reimburse the donor for the tax.
Divorce does not switch this off. Under the spousal attribution rule of IRC § 672(e), the former spouse’s interest is still attributed to the donor for grantor trust purposes if that spouse remains a beneficiary. Without a floating spouse clause, a donor can end up paying income tax for years on a trust whose only current beneficiary is an ex-spouse. This is a second reason, after the obvious one, to end the spouse’s interest at divorce.
After the donor dies, the SLAT becomes its own taxpayer. New York taxes the accumulated income of a trust created by a New York resident unless the trust has no New York trustee, no New York-situated property and no New York-source income. If the family expects the trust to run for grandchildren, the choice of trustee and the location of the assets should be made with that rule in mind.
A SLAT is irrevocable, but it does not have to be rigid. New York law allows a trustee with the right powers to decant, that is, to pour the assets into a new trust with updated administrative terms, without court approval or beneficiary consent. We also name a trust protector, an independent person who can remove and replace trustees, change the trust’s situs or governing law, and adjust provisions if the tax law changes. The protector’s powers have to be drawn narrowly: a protector who can add the donor as a beneficiary, or who is controlled by the donor, can undo the completed gift and bring the assets back into the estate. Neither tool should be relied on to fix a fundamental problem such as the wrong spouse clause or the wrong assets; those have to be right at signing.
A SLAT gift is reported on the donor’s Form 709 by April 15 of the following year (extended with the income tax return, or separately on Form 8892). Gift-splitting under § 2513 generally does not work for a SLAT because the consenting spouse is a beneficiary, so the gift is charged against the donor’s own $15,000,000 exemption. If the trust holds hard-to-value assets, the return should meet the adequate-disclosure rules (Treas. Reg. § 301.6501(c)-1(f)) so the three-year statute of limitations on the value starts running; otherwise the IRS can revalue the gift at death.
Because grandchildren are usually beneficiaries, the return should also allocate GST exemption to the trust so its inclusion ratio is zero (§§ 2631, 2632, 2642). New York has no generation-skipping tax, so once the federal exemption is allocated the SLAT can run as a dynasty trust for as long as New York law allows. Our Form 709 page explains when a return is required.
A New York husband owns $10,000,000 of investments in his own name; his wife has a smaller estate. He funds a SLAT for his wife and children with $4,000,000 of securities and survives more than three years.
| Item | No SLAT | SLAT funded, survives three years |
|---|---|---|
| Husband’s New York taxable estate at death | $10,000,000 | $6,000,000 (plus none of the SLAT’s growth) |
| Federal estate tax | $0 (under $15,000,000) | $0 (gift used $4,000,000 of exemption) |
| New York estate tax | about $1,067,600 | $0 (under the $7,350,000 exclusion) |
| Wife’s access to the $4,000,000 | Outright | Distributions from the trustee under the trust standard |
If he dies within three years, the $4,000,000 is added back and the New York tax returns to about $1,067,600, though post-gift appreciation still escapes. Had he gifted only $2,000,000, the $8,000,000 remaining estate would be over the cliff and pay about $773,200. A New York SLAT should be sized to get the donor comfortably under $7,350,000, not just to reduce the number.
No. New York has no gift tax. The only state consequence is the three-year add-back: if the donor dies within three years of a taxable gift, the gift is added back to the New York gross estate under Tax Law § 954(a)(3).
Yes, but the two trusts must differ in substance, not just in name, or the reciprocal trust doctrine of United States v. Estate of Grace will uncross them and put each trust back in its grantor’s estate. Different timing, assets, trustees, beneficiaries and powers are the usual tools.
It depends entirely on the drafting. With a floating spouse clause the former spouse’s interest ends and the trust continues for the descendants. Without one, the former spouse stays a beneficiary of an irrevocable trust, and the donor may keep paying the income tax on it.
The donor spouse, because a trust that can distribute to the grantor’s spouse is a grantor trust. The payment is not a gift (Rev. Rul. 2004-64), so it quietly shifts more value to the trust each year.
No. Assets held in a grantor trust that are outside the donor’s estate keep the donor’s basis (Rev. Rul. 2023-2). A swap power lets the donor pull low-basis assets back into the estate before death in exchange for cash or high-basis assets of equal value.
You can, but a donor who keeps living there rent-free has retained enjoyment of the property under § 2036. If the residence must go in, the trust should charge fair rent and the arrangement should be documented. Marketable securities and business interests are usually better candidates.
We draft and fund SLATs for New York couples, handle the Form 709 and GST allocation, and design the second trust when both spouses want one. Call Albert Goodwin at 212-233-1233 or email [email protected] to discuss whether a SLAT fits your estate.