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The Estate Tax Sunset 2026: How to Lock In the $27 Million Exemption Before It Vanishes

Dec 06, 2025 Code Authority: Team BMT
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The Estate Tax Sunset 2026: How to Lock In the $27 Million Exemption Before It Vanishes

CORE INSIGHTS

  • The Cliff: On Jan 1, 2026, the federal estate tax exemption will be cut in half (from ~$13.99M to ~$7M). Assets above this limit face a 40% Tax.
  • No Clawback: The IRS confirmed that gifts made before 2026 using the high exemption are safe. You will not be taxed retroactively. It is a “Use It or Lose It” deal.
  • The SLAT Solution: A Spousal Lifetime Access Trust (SLAT) allows you to gift assets out of your estate (locking in the exemption) while your spouse retains access to the funds.

We are in a “Golden Age” of estate planning, but it ends in 2026. For families with a net worth over $14 million, inaction is a choice to pay millions in voluntary taxes. The strategy is simple: Move it out now, or pay 40% later.

What-If Scenario: The $30 Million Estate (Couple)

Scenario Exemption Used Tax Bill (40%)
Do Nothing (2026) ~$14M (Halved) $6.4 Million
Use SLATs (2025) ~$27M (Current) $1.2 Million
Result: Acting before the sunset saved $5.2 Million in taxes.

Visualizing the Exemption Cliff

*Figure 1: The Vanishing Shield. The Green area (Bonus Exemption) disappears in 2026.*

Strategic Action Steps

1
Calculate “Core Capital”
Determine how much you absolutely need to live. Only gift “Surplus Capital” into irrevocable trusts because you cannot easily take it back.
2
Establish a SLAT
One spouse creates a trust for the other. This moves assets out of the estate but allows the beneficiary spouse to receive distributions if needed.
3
Avoid Reciprocal Trusts
Do not create identical SLATs for each other simultaneously. The IRS will unwind them. Make them different in time, assets, and terms.

The Bottom Line: Who Should Choose What?

  • Net Worth > $15M (Couple): Red Alert. Implementing a SLAT before 2026 is likely your highest ROI activity.
  • Net Worth < $10M: You are likely safe. Focus on Annual Gifting (#153) and Revocable Trusts (#140).

Frequently Asked Questions

What happens on January 1, 2026?

The TCJA expires. The Estate Tax Exemption (~$13.99M) reverts to 2017 levels (~$7M), exposing millions more to the 40% tax.

What is the ‘Anti-Clawback’ Rule?

The IRS confirmed that gifts made before 2026 using the higher exemption will NOT be taxed later. You lock in the benefit permanently.

What is a SLAT?

A Spousal Lifetime Access Trust. It moves assets out of your estate (tax-free) but lets your spouse access them, solving the “fear of giving it all away.”

Disclaimer: This content is for informational purposes only. Estate tax laws are complex. Consult an estate attorney.
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