The 2026 Estate Tax Sunset: Scenario Planning for Every Client Profile

Unless Congress acts in the next nine months, the federal estate tax landscape shifts fundamentally on January 1, 2026. The exemption that has protected estates up to $13.61 million from federal taxation halves to approximately $7 million. For practitioners, that date represents both a deadline and an opportunity. The clients sitting comfortably above the exemption threshold in 2025 face a $2.6 million tax bill or more by 2026 without intervention.

This article walks through four representative client scenarios and the actionable strategies that apply to each. The goal is practical: model the tax impact, identify the planning window, and execute before year-end 2025.

The 2026 Sunset Deadline and What Happens if Congress Does Nothing

The Tax Cuts and Jobs Act (2017) increased the federal estate tax exemption from roughly $5.5 million to $10 million per individual, adjusted annually for inflation. By 2024, that exemption had grown to $13.61 million. Under the law as written, these provisions sunset on December 31, 2025. On January 1, 2026, the exemption reverts to the 2009 baseline, adjusted for inflation. That lands at approximately $7 million.

The federal estate tax rate itself does not change. The 40% top rate remains constant. Only the exemption resets lower, meaning estates that escape taxation today fall squarely into the taxable category tomorrow.

The impact is stark. In 2024, approximately 3,500 to 4,000 estates nationwide owe federal estate tax. The IRS estimates that a $7 million exemption in 2026 will increase that number to 8,000 to 9,000 estates annually. For a practitioner managing clients in the $12 million to $25 million range, the sunset creates urgency.

The legislative outlook remains uncertain. Congress has floated permanent extension, a compromise raising the exemption to $9 million or $10 million, and a temporary delay. Some proposals include a higher rate (45%) with a higher exemption. None have been enacted. Until legislation passes both chambers and reaches the President's desk, practitioners must advise clients to plan for the sunset. Assuming extension leaves clients exposed; assuming sunset protects them through discipline.

The planning uncertainty cuts both ways. A client who gifts away $6 million in 2025 expecting a sunset, only to have Congress extend the exemption, loses access to that $6 million in lifetime exemption permanently. Conversely, a client who does nothing and Congress lets the exemption fall owes an unexpected $2.4 million. The solution is not paralysis but scenario modeling that accounts for both possibilities.

Scenario 1: Single High-Net-Worth Individual with Estate of $15 Million

Consider a single 58-year-old professional with $15 million in investable assets, no spouse, and no charitable intentions. Health is good. Life expectancy is normal for the age cohort.

Current Situation (2024-2025): Under the current $13.61 million exemption, $1.39 million of the $15 million estate exceeds the exemption. Federal estate tax liability is 40% of the excess: $556,000. State estate taxes (assuming a state with an estate tax, such as New York or Massachusetts) add another $100,000 to $250,000 depending on the state and the estate plan. Total exposure: roughly $656,000 to $806,000.

Post-Sunset (2026+): Under a $7 million exemption, $8 million of the $15 million estate is taxable. Federal tax alone: $3.2 million. State taxes remain. Total exposure: $3.3 million to $3.55 million. The federal tax increases by $2.64 million.

Recommended Strategy: Accelerated Gifting

The simplest approach is a direct gift of assets to an irrevocable trust in 2025. This client should gift $6.6 million of investments (or other appreciated assets) to an irrevocable dynasty trust benefiting descendants. The gift consumes $6.6 million of the 2025 exemption. The remaining $7.01 million of exemption carries forward to 2026 (subject to any interim legislative changes). On January 1, 2026, the exemption resets to $7 million. The client has effectively locked in the use of $6.6 million before the cut.

The mechanics are straightforward: draft the irrevocable trust document, transfer the assets via deed or account transfer, file Form 709 (U.S. Gift Tax Return) to disclose the gift, and move forward. The $6.6 million remains outside the estate, grows tax-free inside the trust, and passes to beneficiaries without estate tax regardless of future growth.

Alternative: Grantor Retained Annuity Trust (GRAT)

For clients concerned about loss of access to capital or those expecting strong near-term returns, a GRAT is preferable. The client funds a GRAT with $6.6 million in 2025, receives an annuity payment (say, 5% annually, or $330,000 per year) for a defined term (typically 2-3 years), and any remaining value at the end of the term passes to the irrevocable trust or directly to descendants estate-tax-free. If the assets appreciate above the IRS Section 7520 rate (roughly 5.5% in recent years), the excess growth escapes both income and estate tax.

GRATs are particularly attractive for volatile assets: concentrated stock positions, startup equity, or real estate. The risk is low, the upside is tax-free appreciation, and if the client dies during the term, the assets return to the estate (no harm). Practitioners with clients holding significant concentrated positions often layer GRATs as a core strategy during the 2025 window.

SLAT Consideration for Married Individuals

If the client marries before year-end 2025, a spousal lifetime access trust (SLAT) becomes available. One spouse gifts $6.6 million to a trust benefiting the other spouse and descendants. The other spouse gifts $6.6 million to a separate trust benefiting the first spouse and descendants. This doubling of the gifting opportunity is available only for married couples with sufficient assets. For single clients, this strategy is not available, but it merits mention for advisory conversations.

Scenario 2: Married Couple with Estate of $20 Million and Young Children

Take a married couple, both age 55, with a combined estate of $20 million (approximately $10 million each), and two children under age 18. Both spouses are in good health.

Current Situation (2024-2025): Combined exemption is $27.22 million (2 times $13.61 million). The $20 million estate is fully sheltered. Federal estate tax liability is zero today.

Post-Sunset (2026+): Combined exemption drops to $14 million (2 times $7 million). The $20 million estate now has $6 million exposed to tax. Federal tax: $2.4 million. State taxes add another $300,000 to $600,000. The couple goes from no federal exposure to $2.7 million in exposure.

Recommended Strategy: Portability Election with Dynasty Trust Funding

The primary recommendation for this couple is a two-part approach.

First, ensure that the estate plan provides for a portability election on the first spouse's death. Portability allows the surviving spouse to inherit the deceased spouse's unused exemption. If the first spouse to die (call her Spouse A) has a $14 million exemption in 2026 and leaves a $12 million estate, the surviving spouse (Spouse B) can inherit the $2 million unused exemption from Spouse A in addition to her own $7 million exemption, for a combined $9 million. This requires a timely estate tax return filing on Spouse A's death, even if no tax is owed. Many practitioners skip this step when the estate is below the exemption threshold; that error is costly post-sunset.

Second, fund a dynasty trust with $6.6 million to $10 million in 2025. This trust benefits both spouses currently, but primarily the children and grandchildren in remainder. The funding can come from a direct gift by both spouses (doubling the strategy to $13.2 million if both participate) or a SLAT structure (each spouse funds a trust for the other and descendants, as noted above). A well-drafted dynasty trust shelters the $6.6 million principal and all appreciation from estate tax across multiple generations. Over 30 years, assuming 6% annual returns, $6.6 million grows to roughly $37.8 million. Under a $7 million exemption post-sunset, the growth inside the trust represents tax-free wealth transfer to the next generation.

For couples with young children, dynasty trusts serve an additional purpose: generation-skipping tax (GST) exemption utilization. The couple's combined GST exemption is approximately $27.22 million in 2025, dropping to $14 million in 2026. Funding a dynasty trust in 2025 allows the couple to allocate GST exemption to the trust while the exemption is high. Any appreciation in the trust is tax-free through the dynasty period (often 300+ years under Delaware, Nevada, or other perpetual trust states).

Alternative: Spouse-to-Spouse Lifetime Gift for Estate Equalization

If the couple's assets are unequally distributed (say, $15 million with one spouse and $5 million with the other), consider a gifting strategy between spouses. The wealthier spouse can gift $3 million to $4 million to the other spouse during life. This equalizes the estates and ensures both spouses can fully use their exemptions on death. Some couples resist this strategy due to marital relationship concerns or liquidity preferences; those objections are valid and warrant discussion, but from a pure tax perspective, equalization is efficient.

Scenario 3: Business Owner with $30 Million Net Worth (Mostly Illiquid Business)

A 62-year-old business owner holds a $30 million operating business (valued via EBITDA multiple or comparable company sales), modest investments ($2 million), and real estate ($1 million). The spouse is age 60, in good health. No children.

Current Situation (2024-2025): $30 million estate, $13.61 million exemption. $16.39 million taxable. Federal tax: $6.556 million. State taxes add another $800,000. Total exposure: $7.356 million. The business has no current liquidity to pay this tax. The likely outcome is a forced sale of business assets (stock or assets) post-death, disrupting the business and harming value to remaining owners or employees.

Post-Sunset (2026+): $30 million estate, $7 million exemption (combined couple exemption is $14 million). $16 million taxable. Federal tax: $6.4 million. State taxes remain. Total exposure: roughly $7.2 million, with the compounding issue that the business is still illiquid and the owner is potentially older at death, with reduced business earning power to service an IDGT loan.

Recommended Strategy 1: Gifting of Minority Business Interest

In 2025, the owner gifts $6 million to $7 million worth of minority partnership or LLC interests to an irrevocable dynasty trust. This accomplishes two things. First, it consumes exemption at the current level. Second, minority interests typically receive a valuation discount of 20% to 40% compared to pro-rata control value. A $7 million gift of minority interest might represent $9 million to $10 million in business value, depending on the discount applicable. This creates an effective exemption leverage.

The mechanics: restructure the business as a partnership or LLC if not already so. Transfer minority interests to a trust. Obtain a business valuation supporting the discount. File Form 709. The transferred interests grow inside the trust free of estate tax. The owner retains control as the managing member or general partner.

Recommended Strategy 2: Installment Sale to Intentionally Defective Grantor Trust (IDGT)

After gifting the minority interests, the owner can further reduce the business value through a sale to an IDGT. Here, the owner sells business interests to an irrevocable trust (funded with a gift or existing capital) in exchange for a promissory note. The sale is not at a discount; it is a fair-market-value sale. But the note is a liability, reducing the owner's taxable estate.

The mechanism works because an IDGT is tax-neutral to the grantor. The grantor (owner) pays income tax on IDGT earnings but the sale itself is not taxable. The promissory note is a liability against the estate. If the note has a 5-year term and the business appreciates 6% annually, the appreciation above the note's interest rate (typically 2-3%, tied to the AFR rate) flows to the trust beneficiaries free of tax. The owner's estate avoids the future appreciation, and the owner receives note payments (principal + interest) which can be used to pay estate tax or other expenses.

IDGT sales require careful documentation: a written promissory note, adequate security (personal guarantee or business asset collateral), payments made on time, and annual interest paid. The strategy is robust if executed properly.

Recommended Strategy 3: Entity Freeze

Alternatively or additionally, the owner can implement an entity freeze. The business is recapitalized into preferred stock (held by the owner or owner's trust) and common stock (gifted to descendants or a dynasty trust). The preferred stock has a stated value, a dividend rate, and liquidation preference. The common stock captures future appreciation. By freezing the value of the preferred stock, any growth above that value accrues to the common stock (held in trust) and escapes estate tax.

This requires detailed documentation and valuation support to withstand IRS scrutiny, but it is an established strategy for business owners concerned about future growth and transition planning.

Recommended Strategy 4: Life Insurance for Estate Liquidity

Regardless of which of the above strategies are implemented, the owner should secure a $7 million to $9 million life insurance policy held in an irrevocable life insurance trust (ILIT). The policy provides estate liquidity to pay estate taxes and business transition costs without forcing a fire sale. The policy premium is funded via annual gifts from the owner to the ILIT (using the annual exclusion or exemption), the policy is owned by the trust (not the estate), and the death benefit flows to the trust estate-tax-free. The beneficiaries (spouse or children) receive the cash to pay estate taxes or reinvest in the business.

Scenario 4: Married Couple with Significant Real Estate Portfolio (Mostly Out-of-State)

A couple, both age 60, holds a real estate portfolio valued at $35 million across six states: $8 million of rental real estate in California, $6 million in Colorado, $5 million in Arizona, $4 million in Montana, $3 million in New York, and $9 million of personal residences split across several states. The portfolio is mortgaged; equity is $32 million after outstanding loans.

Current Situation (2024-2025): $32 million net estate, $27.22 million combined exemption. Federal exposure: $4.78 million at 40%. State estate taxes (California, Colorado, New York) add another $800,000 to $1.2 million. Total exposure: $5.58 million to $5.98 million. Ancillary probate (separate probate proceedings in each state where the couple owns real property) will cost $100,000 to $300,000 in court fees and attorney time.

Post-Sunset (2026+): $32 million net estate, $14 million combined exemption. Federal exposure: $7.2 million at 40%. State taxes and ancillary probate remain. Total exposure: $8 million to $8.5 million plus probate costs in six states. The estate faces a liquidity crisis.

Recommended Strategy 1: Revocable Trust to Irrevocable Trust Conversion

If the couple has a revocable living trust (common for out-of-state real estate owners), convert portions of it to irrevocable trusts in 2025. This is not a restatement or amendment of the revocable trust; it is a conversion of assets from the revocable trust to new irrevocable trusts.

Mechanism: The couple, as trustees of their revocable trust, distribute property to irrevocable dynasty trusts (new trusts created for this purpose). This distribution occurs during the couple's lifetime. The irrevocable trust receives title to the real estate. Going forward, the couple may receive trust distributions (income or principal) under the trust terms, but the trust property is outside their estates.

This requires careful valuation of the distributed assets (for gift tax purposes) and potential appraisal support if the value is substantial. The couple's combined exemption is used to fund the irrevocable trusts without gift tax. By year-end 2025, $6 million to $10 million of real estate equity can be transferred.

Recommended Strategy 2: Deed Transfer to Irrevocable Trusts

Alternatively, the couple can directly deed properties to irrevocable trusts. This is simpler than trust-to-trust transfers and avoids the need to retitle property within a revocable trust first. The deed transfer consumes exemption and removes the property from the couple's taxable estates.

Key considerations:

• Mortgage implications: If the property is mortgaged, the couple should review the mortgage documents for any due-on-sale clauses that might be triggered by transfer to a trust. Many modern mortgages include exceptions for transfers to trusts for estate planning purposes.
• State recording requirements: Each state has different requirements for recording deeds. Some require notice of trust (a surrogate deed disclosing only the fact of the trust, not its terms). Others allow recording of full trust documents.
• Basis step-up consideration: A direct deed transfer to an irrevocable trust during life means the property does not receive a step-up in basis at death. If the property has significant appreciation, the heirs will owe capital gains tax on sale. However, if the goal is to avoid estate tax, this trade-off is acceptable. The estate tax avoided (40% of value) often exceeds the capital gains tax owed later (20% federal capital gains rate, potentially 3.8% net investment income tax, plus state capital gains tax).

Recommended Strategy 3: Monetization via 1031 Exchange or Partial Sale

For real estate portfolios held for long-term appreciation, consider whether monetization is appropriate. If the couple is not dependent on rental income from some properties and values diversification, a partial sale followed by 1031 exchange into liquid alternative investments (mortgages, notes, or marketable securities held in trust) reduces the complexity of a multi-state portfolio and increases estate liquidity.

Alternatively, a syndication or sale of a real estate interest to a third party can generate cash that is subsequently deployed into more liquid assets held in irrevocable trusts. This is a longer-term conversation but warrants mention during the 2025 planning window.

Recommended Client Actions for 2025 (12-Month Sunset Window)

For all client profiles, the 2025 planning window requires discipline and sequence. Here is the recommended timeline:

January to March 2025: Assessment and Modeling

Conduct a detailed net worth assessment with the client, gathering current valuations for all significant assets. For real estate, order updated appraisals or broker opinion of value letters. For businesses, commission a formal valuation using an independent valuation firm. For financial assets, pull year-end statements and confirm market values. Create a detailed net worth statement broken down by asset class and location.

Run federal and state estate tax scenarios under both the 2025 exemption and a post-sunset 2026 exemption. Use a reputable estate tax software or engage a tax advisor to model the impact. Present scenarios to the client: no action, gifting of $X in 2025, and alternative strategies (GRATs, IDGTs, etc.). Quantify the tax savings and the client's out-of-pocket cost for implementation.

April to June 2025: Strategy Selection and Implementation

Based on the modeling, select the strategies that best fit the client's circumstances, risk tolerance, and family objectives. For most clients, this means direct gifting to irrevocable trusts or GRATs. For business owners, it may include IDGT sales or entity freezes. For real estate portfolios, deed transfers to irrevocable trusts.

Engage counsel to draft the necessary documents: irrevocable trust documents, GRAT agreements, promissory notes for IDGT sales, and any amendment or restatement of wills or powers of attorney. Review with the client. Execute.

July to September 2025: Funding and Filing

Fund the irrevocable trusts with assets. If gifting appreciated assets, consider the step-up basis issue: assets gifted away do not receive a step-up in basis at death. If the client expects to die soon or the assets are expected to appreciate significantly, this may weigh against immediate gifting. However, for most clients with normal life expectancy, the estate tax avoided justifies the loss of a step-up basis.

For GRAT strategies, fund the GRAT and document the annuity payments. For IDGT sales, document the promissory note terms and ensure the initial note principal is paid.

For out-of-state real estate, record the deeds or other instruments in each county where the property is located.

October to December 2025: Reporting and Estate Plan Updates

File Form 709 (U.S. Gift Tax Return) for any gifts exceeding the annual exclusion amount. The annual exclusion is $18,000 per recipient in 2025 (indexed annually). Gifts under the annual exclusion do not require Form 709 filing but are a good way to move modest amounts free of exemption consumption.

For larger gifts (above the annual exclusion), Form 709 must be filed with the individual's tax return (Form 1040) for the year of the gift, even if no gift tax is owed. Failure to file Form 709 can void the exemption protection.

Update the client's will or trust to reflect the new irrevocable trusts and the gifted assets. Ensure the estate plan designates an executor or successor trustee who understands the trust structure and the exemption strategy. Brief the executor or trustee on the portability election requirement (for married couples) and the filing deadlines for Form 706 on death.

Confirm that life insurance is in place and funded in an ILIT if part of the strategy.

Frequently Asked Questions

Q: What happens to the federal estate tax exemption on January 1, 2026?

A: Unless Congress extends or permanently fixes the exemption, it reverts to approximately $7 million per individual. This is the baseline from the American Taxpayer Relief Act of 2012, adjusted for inflation since 2009. Married couples would have a combined exemption of $14 million. The 40% federal estate tax rate does not change. Only the amount shielded from tax decreases.

Q: Should I give away assets in 2025 to avoid the sunset tax?

A: It depends on your estate size and tax exposure. If your estate exceeds $7 million (or $14 million as a married couple), gifting assets to irrevocable trusts in 2025 uses your exemption while it is high and removes the assets from your taxable estate. The trade-off is that you lose access to the gifted assets (or have limited access under a GRAT or other arrangement) and the assets do not receive a step-up in basis at your death. For most clients with estates above the post-sunset threshold, the estate tax avoided is greater than the capital gains tax paid later. Consult your advisor to model your specific situation.

Q: What is a GRAT and should I use one?

A: A grantor retained annuity trust (GRAT) is an irrevocable trust funded with assets, from which you receive annuity payments (a fixed dollar amount or percentage of principal) for a specified term (typically 2-10 years). At the end of the term, the remaining principal passes to beneficiaries (often your children or a dynasty trust) free of gift and estate tax. The IRS requires that the annuity payment be large enough that the present value of the remainder (the amount passing to beneficiaries) equals or exceeds the value of the assets placed in the GRAT. If the GRAT's assets appreciate above the IRS discount rate (the Section 7520 rate, roughly 5.5% in recent years), the excess appreciation passes to beneficiaries tax-free.

GRATs are attractive for concentrated stock positions, real estate expected to appreciate, or clients who want continued access to assets during the GRAT term. The downside is that if you die before the GRAT term ends, the GRAT assets return to your estate, negating the tax benefit. For clients with normal life expectancy and short-term GRATs (2-3 years), the mortality risk is acceptable.

Q: If I'm married, does my spouse's exemption matter?

A: Yes, critically. Married couples have a combined exemption under "portability." On the first spouse's death, if the couple files an estate tax return electing portability, the surviving spouse can use both spouses' exemptions. This means a married couple in 2026 has a combined $14 million exemption ($7 million each) to shelter from estate tax. However, portability is not automatic; it requires a timely election. If the first spouse's estate is below the exemption threshold and no estate tax return is filed, the surviving spouse loses the ability to use the deceased spouse's unused exemption, leaving the surviving spouse with only his or her own $7 million exemption.

For couples with estates between $7 million and $14 million, this creates a gap: the first spouse to die may have exemption that is wasted if portability is not elected. The solution is to file an estate tax return on the first death (even though no tax is owed) and elect portability. The return must be filed within nine months of death (six months with extension). Practitioners must ensure clients understand this filing requirement and that executors are briefed to file in a timely manner.

How Afterpath Helps

The 2026 estate tax sunset affects thousands of practitioners and their clients. The challenge is twofold: identifying which clients need action (those above the post-sunset $7 million or $14 million threshold) and ensuring the action happens before December 31, 2025.

Afterpath's exemption sunset alert system tracks each client's net worth and proximity to the post-sunset exemption threshold. When a client's estate exceeds the threshold, Afterpath triggers an exemption utilization workflow that estimates the tax exposure, identifies gifting or GRAT opportunities, and sets reminders for Q4 2025 action. For married couples, Afterpath flags portability election requirements at the first spouse's death, ensuring the estate tax return is filed on time.

This infrastructure removes guesswork from sunset planning. Instead of manually reviewing client files to see who needs attention, practitioners receive automated prompts and worksheets. Instead of a generic estate plan template, Afterpath provides scenario-based recommendations tied to each client's profile: single, married, business owner, real estate investor, or other.

The result is that no client misses the 2025 gifting window and no executor fails to file a portability election due to oversight.

Ready to operationalize 2026 sunset planning for your practice? Explore Afterpath Pro or join the waitlist to be notified when the sunset planning feature launches.