Overview of irrevocable trust vehicles available for estate tax reduction, asset protection, and wealth transfer under current law.
A SLAT is an irrevocable trust created by one spouse for the benefit of the other spouse (and potentially descendants). It allows the grantor spouse to use their lifetime exemption while the beneficiary spouse retains indirect access to trust assets. With the $15M permanent exemption under OBBBA, SLATs remain a cornerstone strategy for married couples. Both spouses can create reciprocal SLATs, but they must be sufficiently different to avoid the reciprocal trust doctrine (Estate of Grace, 395 U.S. 316, 1969).
A GRAT allows the grantor to transfer assets to a trust while retaining an annuity for a fixed term. If the assets appreciate above the §7520 rate (currently 4.6% for April 2026), the excess passes to beneficiaries gift-tax-free. GRATs are particularly effective for assets expected to appreciate significantly (pre-IPO stock, rapidly growing businesses). "Zeroed-out" GRATs set the annuity equal to the gift value, resulting in zero taxable gift. Rolling (cascading) GRATs mitigate mortality risk.
An ILIT owns life insurance policies outside the insured's estate, ensuring death benefits are not subject to estate tax. For a $10M policy, this can save $4M in federal estate tax alone (40% rate). The trust must be the owner and beneficiary of the policy. The insured cannot retain any incidents of ownership (IRC §2042). If transferring an existing policy, the 3-year lookback rule under IRC §2035 applies — the insured must survive 3 years after transfer.
An IDGT is irrevocable for estate tax purposes but "defective" (treated as owned by the grantor) for income tax purposes. This allows the grantor to sell appreciated assets to the trust without recognizing capital gain (Rev. Rul. 85-13), and the grantor's payment of income taxes on trust earnings further depletes the estate tax-free. Installment sales to IDGTs are a powerful technique: the grantor sells assets for a promissory note, freezing the value for estate tax while all future appreciation passes to beneficiaries.
A dynasty trust is designed to last for multiple generations (potentially perpetually in states that have abolished the Rule Against Perpetuities). Combined with GST exemption, a dynasty trust can shelter wealth from estate, gift, and GST taxes for centuries. Top jurisdictions: South Dakota (no RAP, no state income tax, asset protection after 2 years), Nevada (365-year RAP, no state income tax), Alaska (1,000-year RAP, asset protection), Delaware (abolished RAP, Court of Chancery), Wyoming (1,000-year RAP, no state income tax).
Charitable Remainder Trusts (CRTs) provide income to non-charitable beneficiaries for a term, with the remainder going to charity. They offer an immediate income tax deduction and bypass capital gains on contributed appreciated assets. Charitable Lead Annuity Trusts (CLATs) are the inverse — charity receives annuity payments for a term, and the remainder passes to family. Zeroed-out CLATs (like zeroed-out GRATs) can transfer appreciation above the §7520 rate to heirs gift-tax-free.
All information sourced from official government publications, enacted legislation, and peer-reviewed legal analysis.
IRC §2702 — Special Valuation Rules (GRATs)
26 U.S.C. §2702
Governs valuation of retained interests in GRATs and other split-interest transfers.
IRS Revenue Ruling 2026-7
Rev. Rul. 2026-7
April 2026 §7520 rate of 4.6% for valuing annuities, life estates, and remainders.
Revenue Ruling 85-13
Rev. Rul. 85-13, 1985-1 C.B. 184
Establishes that transactions between a grantor and their grantor trust are disregarded for income tax purposes.
IRC §2042 — Proceeds of Life Insurance
26 U.S.C. §2042
Life insurance proceeds includible in gross estate if decedent held incidents of ownership.
Estate of Grace v. United States
395 U.S. 316 (1969)
Supreme Court case establishing the reciprocal trust doctrine for SLATs.
South Dakota Codified Laws §55-1-20
SDCL §55-1-20
Abolition of Rule Against Perpetuities for trusts with South Dakota situs.
Bessemer Trust — Estate Planning Update
Bessemer Trust Insights (2026)
Analysis of trust structuring techniques and current planning environment.
Disclaimer: This summary is generated for educational purposes and reflects publicly available legal and regulatory information as of the date shown. It does not constitute legal, tax, or financial advice. Estate planning strategies involve complex legal and tax considerations that vary by individual circumstance. Consult a qualified estate planning attorney and tax advisor before implementing any strategies.