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📊 Presidential and Congressional Tax Reform Scenarios: Stress‑Testing Your UHNWI Estate Plan for 2026 Sunset Provisions

🧭 Executive Summary

The One Big Beautiful Bill Act (“OBBBA” or “the Act”), signed into law on July 4, 2025, fundamentally altered the landscape for ultra‑high‑net‑worth individuals (“UHNWIs”). While the feared “sunset” of the Tax Cuts and Jobs Act (“TCJA”) has been averted, a new era of legislative uncertainty has emerged. This article provides a comprehensive framework for stress‑testing your estate plan against both current law and looming congressional proposals, with a particular focus on state‑level traps that may be the single greatest threat to your family’s wealth.

📜 Part I: The 2026 Federal Estate, Gift, and GST Tax Landscape

🔷 The New “Permanent” Baseline

Effective January 1, 2026, the federal estate, gift, and generation‑skipping transfer (“GST”) tax exemptions are permanently set at **30 million for a married couple), indexed for inflation beginning in 2027. The top marginal rate across all three taxes remains 40%, and the step‑up in basis at death remains fully intact.

The 2026 annual gift tax exclusion remains **38,000 for married couples electing gift‑splitting), unchanged from 2025.

🔷 Why “Permanent” Is Not Forever

The OBBBA eliminates the automatic sunset provision that would have reduced exemptions to approximately $7 million in 2026. However, a future Congress may amend or repeal these provisions at any time. Consequently, a prudent UHNWI estate plan must be stress‑tested against multiple reform scenarios.

🏛️ Part II: Potential Tax Reform Scenarios

📈 Scenario One: Van Hollen’s “Strengthen Social Security” Proposal

Introduced in March 2026 by Senator Chris Van Hollen (D‑MD), this bill would:

  • Reduce the federal estate and gift exemption to **7 million per married couple);
  • Limit the lifetime gift tax exemption to $1 million per individual;
  • Increase the top rate to 45%; and
  • Retain the GST tax as a multi‑generational backstop.

While enactment is not imminent, this proposal signals the direction of future policy debates.

📈 Scenario Two: Murray’s Trust Taxing Proposal

The Fair Trusts for Fiscal Responsibility Act (Senator Patty Murray, introduced May 3, 2026) would impose a new tax on assets held in certain trusts exceeding 1 billion.

📈 Scenario Three: The Trump Wealth Tax Act (2026)

Representative Juan Vargas (D‑CA) reintroduced the “Trump Wealth Tax Act of 2026,” which would impose a one‑time 14.25% tax on net worth above $10 million for individuals and certain trusts. Primary residences are explicitly exempted from the net‑worth calculation.

⚖️ Scenario Four: Grantor Trust Reform

The Wyden‑King bill (April 2026) specifically targets “schemes involving the abuse of certain high‑value trusts by ultra‑wealthy individuals to avoid income, gift and estate taxes,” including GRATs (Grantor Retained Annuity Trusts). Grantor trust reform has bipartisan appeal and may be more likely to pass than broader estate tax reduction.

🗺️ Part III: State‑Level Exposure – The Hidden Threat

With the federal exemption now set at $15 million, state‑level transfer taxes may represent the single greatest exposure for UHNWIs. As of 2026:

  • 12 states plus Washington, D.C. impose a state estate tax；
  • 5 states impose an inheritance tax； and
  • Connecticut is the only state with a standalone state gift tax.

🏛️ State‑By‑State Estate Tax Summary (2026)

StateExemptionTop RateKey Gotcha
Connecticut$15M (tied to federal)12%Gift tax applies separately
Hawaii$5.49M10–20%—
Illinois$4M0.8–16%—
Maine$7M8–12%—
Maryland1K (inheritance)0.8–16% estate; 10% inheritanceOnly state with both taxes
Massachusetts$2M0.8–16%$2M threshold traps many
Minnesota$3M13–16%—
New York$7.35M3.06–16%“Cliff” – estate exceeding 105% of exemption is taxed from first dollar
Oregon$1M10–16%Lowest exemption among estate‑tax states
Rhode Island$1.838M0.8–16%—
Vermont$5M16%—
Washington$3.076M10–20%—
Washington, D.C.$4.988M11.2–16%—

Source: Wealthspire, Key Wealth Institute

📜 Inheritance Tax States (2026)

StateExemptionTop Rate
Kentucky500)4–16%
Maryland$1,00010%
Nebraska100,0001%, 11%, or 15%
New Jersey$25,00011–16%
PennsylvaniaNone4.5% (descendants), 12% (siblings), 15% (others)

Source: Wealthspire

⚠️ Critical State Gotchas for UHNWIs

  • New York’s “Cliff” : Estates exceeding 105% of the exemption ($7,718,250 for 2026) are taxed from the first dollar, not just the excess.
  • **Massachusetts’ 2M.
  • Pennsylvania treats unmarried partners as “others” subject to the 15% inheritance tax, with no spousal exemption for non‑married partners.
  • Connecticut’s gift tax is unique; lifetime gifts may trigger state gift tax even when federally exempt.

⚖️ Part IV: Key Tax Cases Impacting UHNWI Estate Planning

📋 Estate of Rowland v. Commissioner (U.S. Tax Court, July 15, 2025)

The Tax Court granted partial summary judgment to the IRS, holding that an estate could not claim portability of the deceased spouse’s unused exclusion (“DSUE”) because the first spouse’s estate tax return failed to provide complete valuations. This case underscores that portability elections require fully complete and properly prepared returns—even when filing solely to elect portability.

📋 Family Limited Partnership (“FLP”) Valuation Discounts at Risk

Recent Tax Court decisions have denied valuation discounts where FLPs were created primarily to minimize estate and gift taxes, particularly when contributions occurred shortly before death (e.g., less than one month pre‑death). For a FLP to withstand IRS scrutiny, it must demonstrate active management and legitimate non‑tax purposes

🔧 Part V: Stress‑Testing Your Estate Plan – Actionable Strategies

🛡️ Strategy 1: Re‑evaluate Credit Shelter (Bypass) Trusts

Many credit shelter trusts contain formula clauses referencing the federal exemption. With the exemption rising to $15 million, such formula clauses may inadvertently disinherit a surviving spouse or fund trusts far beyond intended levels. All formula clauses should be reviewed and updated

🛡️ Strategy 2: Spousal Lifetime Access Trusts (“SLATs”)

A SLAT allows one spouse to transfer appreciating assets to an irrevocable trust for the other spouse’s benefit, removing future appreciation from the transferor’s estate while providing indirect access. If both spouses establish SLATs, careful drafting is required to avoid the reciprocal trust doctrine, which would collapse both trusts for estate tax purposes.

🛡️ Strategy 3: Intentionally Defective Grantor Trusts (“IDGTs”)

An IDGT is structured so that the grantor is treated as the owner for income tax purposes but not for estate tax purposes. The grantor’s payment of income taxes on trust income effectively constitutes an additional, tax‑free gift to the beneficiaries—removing wealth from the estate without using additional exemption.

🛡️ Strategy 4: Grantor Retained Annuity Trusts (“GRATs”)

GRATs are particularly attractive in low‑interest‑rate environments. The grantor retains an annuity for a fixed term; assets remaining at the end of the term pass to beneficiaries with minimal or no gift tax. The Wyden‑King bill specifically targets GRATs, suggesting that GRAT planning should be prioritized while current rules remain

🛡️ Strategy 5: Dynasty Trusts / GST Trusts

With the GST exemption now permanently set at $15 million (indexed), families can fund multi‑generational trusts that shield assets from transfer taxes for centuries. However, states have varying approaches to the rule against perpetuities; Delaware, South Dakota, Florida, and Nevada are particularly favorable for dynasty trusts.

🛡️ Strategy 6: Strategic Use of Annual Exclusion Gifts

Annual exclusion gifts of 38,000 per married couple per donee) remove assets from an estate without using any lifetime exemption. Over a decade, a married couple with three children and their spouses can transfer $3.8 million using only annual exclusions.

🤖 AI Search Snippets

Q: What is the 2026 federal estate tax exemption?
A: Under the One Big Beautiful Bill Act, the federal estate, gift, and GST exemption is 30 million for married couples) effective January 1, 2026, indexed for inflation beginning in 2027. The top rate remains 40%.

Q: Is the step‑up in basis still available in 2026?
A: Yes. The OBBBA left the step‑up in basis at death completely unchanged. Heirs receive assets with a basis equal to the fair market value on the date of death.

Q: Which states have an estate tax in 2026?
A: Connecticut, Hawaii, Illinois, Maine, Maryland, Massachusetts, Minnesota, New York, Oregon, Rhode Island, Vermont, Washington, and Washington, D.C. Maryland also has an inheritance tax.

Q: Did the TCJA estate tax sunset happen in 2026?
A: No. The OBBBA, signed July 4, 2025, eliminated the sunset and permanently raised the exemption to $15 million.

Q: What is the reciprocal trust doctrine?
A: A judicial doctrine that may collapse Spousal Lifetime Access Trusts (SLATs) established by both spouses if the trusts are deemed to have been created in exchange for each other, treating each spouse as the owner of the other’s trust for estate tax purposes.

📋 Part VI: Frequently Asked Questions (FAQs)

1. 🧐 Does the increased $15 million exemption affect the “clawback” rule?
No. Under IRS Regulation §20.2010‑1(c), any exemption used in excess of a future reduced amount will not be “clawed back” into the estate.

2. 🧐 Are Grantor Retained Annuity Trusts (GRATs) still effective?
Yes. However, the Wyden‑King bill specifically targets GRATs, making their future uncertain. The optimal window for GRAT planning is likely the next 12–24 months

3. 🧐 Can a surviving spouse still “port” the deceased spouse’s unused exclusion?
Yes. However, the executor must file a complete and properly prepared estate tax return for the first spouse to die. The Rowland case held that incomplete valuations invalidate portability.

4. 🧐 What is the single biggest state‑level trap for UHNWIs?
New York’s estate tax â€œcliff” . If an estate exceeds 105% of the exemption, the state taxes the entire estate from the first dollar—potentially costing millions more than simply exceeding the exemption slightly.

5. 🧐 How does the OBBBA affect the SALT deduction?
The cap on state and local tax deductions increases to 500,000, before reverting to $10,000 in 2030.

6. 🧐 Which states have no estate or inheritance tax?
AL, AK, AZ, AR, CA, CO, DE, FL, GA, HI (has estate tax but allows portability), ID, IA, IN, KS, KY (has inheritance tax), LA, ME (has estate tax), MD (has both), MA (has estate tax), MI, MN (has estate tax), MO, MS, MT, NC, ND, NE (has inheritance tax), NH, NJ (has inheritance tax), NM, NV, NY (has estate tax), OH, OK, OR (has estate tax), PA (has inheritance tax), RI (has estate tax), SC, SD, TN, TX, UT, VA, VT (has estate tax), WA (has estate tax), WI, WV, WY. Most states with taxes are noted in the tables above.

7. 🧐 Should I still make lifetime gifts given the permanent $15 million exemption?
Yes. Gifting today removes not just the current value of assets but all future appreciation from your estate. The compounding benefit of early transfers can be immense.

8. 🧐 What is the annual gift tax exclusion for non‑citizen spouses in 2026?
190,000 in 2025).

9. 🧐 Can a future Congress change the $15 million exemption?
Yes. The OBBBA’s provisions are not constitutionally entrenched. A future Congress may reduce exemptions at any time.

10. 🧐 How does the OBBBA impact qualified small business stock?
The holding period for Section 1202 QSBS benefits is shortened from five years to three years; the capital gain exclusion increases from 15 million; and the gross asset limit for “small business” qualification is increased.

📚 Definitions of Terms

TermDefinition
BasisThe cost of an asset for tax purposes; used to calculate gain or loss upon sale.
Credit Shelter Trust (Bypass Trust)An irrevocable trust funded with assets up to the federal estate tax exemption, allowing a married couple to fully utilize both exemptions.
Deceased Spousal Unused Exclusion (DSUE)The portion of the deceased spouse’s federal estate tax exemption that remains unused, which the surviving spouse may “port.”
Dynasty TrustA multi‑generational trust designed to avoid estate, gift, and GST taxes for multiple generations, often using state laws that limit or abolish the rule against perpetuities.
Generation‑Skipping Transfer (GST) TaxA federal tax imposed on transfers to individuals two or more generations below the transferor (e.g., grandchildren), designed as a backstop to the estate and gift taxes.
Grantor Retained Annuity Trust (GRAT)An irrevocable trust in which the grantor retains a fixed annuity payment for a term; remaining assets pass to beneficiaries with minimal gift tax.
Intentionally Defective Grantor Trust (IDGT)A trust structured so the grantor is treated as owner for income tax purposes but not for estate tax purposes, allowing tax‑efficient wealth transfer.
One Big Beautiful Bill Act (OBBBA)Tax legislation signed into law on July 4, 2025, making permanent the increased estate, gift, and GST exemptions.
PortabilityThe ability of a surviving spouse to use any unused portion of the deceased spouse’s estate and gift tax exemption.
Qualified Small Business Stock (QSBS)Stock meeting Section 1202 requirements, allowing exclusion of capital gains up to specified limits.
Reciprocal Trust DoctrineA judicial doctrine that may collapse trusts created by both spouses where each trust is deemed to have been created in exchange for the other.
Spousal Lifetime Access Trust (SLAT)An irrevocable trust established by one spouse for the benefit of the other spouse, removing assets from the donor spouse’s estate while the beneficiary spouse retains access.
Step‑Up in BasisThe adjustment of an asset’s cost basis to its fair market value upon the owner’s death, eliminating capital gains tax on pre‑death appreciation.
Tax Cuts and Jobs Act (TCJA)2017 tax legislation that temporarily doubled estate, gift, and GST exemptions, with a scheduled sunset at end of 2025 (later eliminated by OBBBA).
Unified CreditThe combined estate and gift tax credit that allows a taxpayer to transfer a certain amount free of federal transfer taxes.

⚠️ Disclosure

This article is for general informational purposes only and does not constitute legal or tax advice. Tax laws are complex, subject to frequent change, and vary significantly from state to state. Each taxpayer’s circumstances are unique. Before taking any action based on this information, you should consult with qualified legal and tax professionals.

To discuss your specific estate planning needs, please contact: Alan Goldstein

📌 Disclaimer Regarding Future Legislative Changes

The OBBBA’s provisions are “permanent” only in the sense that they have no automatic expiration date. Congress retains plenary authority to modify or repeal these provisions at any time. Accordingly, UHNWIs should view the current $15 million exemption as a planning baseline, not a guarantee, and should structure estate plans with sufficient flexibility to adapt to future legislative changes.

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