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How to Plan Around Estate Tax Uncertainties

Three trust types that may help guard against future estate tax changes.
August 11, 2026Bob BarthGeorge Pennock

Key takeaways: Estate tax uncertainties

  • Although federal estate tax exemptions are historically high, consider how your estate plan can protect your heirs in case tax laws can change.
  • State estate taxes may still apply even when federal estate taxes do not, making proactive planning important for high-net-worth households.
  • An A-B trust, grantor retained annuity trust, or charitable remainder trust can help lower your taxable estate and minimize potential taxes for your heirs.

With estate tax exemptions at a historic high, most people likely won't have to worry about estate taxes at the federal level. However, Congress can always rewrite tax bills and some taxpayers could face state estate tax, so you should always remain diligent in your planning. With all the what-ifs around estate taxes, it's important to have a plan in place that will protect your heirs, come what may.

Here are three trust types that may help.

1. A-B Trust

How it works: When one member of a married couple passes away, the couple's assets are separated into two trusts:

  • A survivor's or "A" trust, which is revocable (meaning it can be changed) and belongs to the surviving spouse.
  • A bypass or "B" trust, which is irrevocable (meaning it can't be changed) but can provide income to the surviving spouse before being passed down to the trust's beneficiaries tax-free upon the surviving spouse's death.

Who it's for: An A-B trust can help minimize estate taxes for heirs. Thanks to the unlimited marital deduction, spouses don't pay estate tax on assets inherited from each other, which allows an individual to transfer an unrestricted amount of assets tax-free to their spouse at any time or at death. However, over time, appreciation alone can easily push a sizable estate over the estate tax exemption for your heirs. By moving some of those assets into a bypass trust at the time of the first spouse's death, they're excluded from the surviving spouse's estate even as they derive income from it.

The bypass trust can also help preserve the generation-skipping transfer tax exemption, which may be relevant to future generations after the surviving spouse's death. Often, a lot of people solely focus on estate tax and what happens when the grantors die, but an A-B trust also considers the income and estate taxes beneficiaries may face.

Be aware, couples who established an A-B trust before the passage of the One Big Beautiful Bill Act—which kept the higher exemption that was set to expire—may want to review their trust for compulsory language mandating the automatic separation of assets upon the first spouse's death. Instead, they may wish to consider a disclaimer approach with their attorney that could create more flexibility for the surviving spouse to decide if and when to split assets.

Schwab can help you set up a trust account.

2. Grantor Retained Annuity Trust (GRAT)

How it works: The GRAT's creator transfers assets into a fixed-term, irrevocable trust. During the term (of at least two years), the creator receives annuity payments that pay the value of the assets back to them in their entirety—plus a fixed interest (or "hurdle") rate set by the IRS. When the term expires, any growth in the invested assets over and above the hurdle rate passes to the trust's beneficiaries without gift or estate taxes. 

However, naming grandchildren as a GRAT's beneficiaries could trigger generation-skipping transfer taxes, so consult a tax professional before making any decisions. In addition, if the creator dies before the term ends, the value of the remaining assets, including earnings, will be included in their taxable estate.

Who it's for: A GRAT is most useful for those with assets that are likely to appreciate substantially during their lifetimes, such as a closely held business, real estate, or stocks. A GRAT allows you to move some of that appreciation out of your estate, thereby reducing its overall size. And if the assets don't appreciate as expected, the GRAT's "substitution transaction" provision allows you to swap them out for assets of equal value that may appreciate more during the annuity term.

By stringing together successive two-year GRAT's, it's possible for you to move substantial appreciation of these assets out of your future taxable estate.

3. Charitable Remainder Trust (CRT)

How it works: This irrevocable trust distributes a portion of the donated assets—at least 5% annually but no more than 50%—to its creator or another beneficiary for a specified term (or life). At the end of the term or the creator's death, the remainder goes to one or more designated charities. There are two main types of CRTs:

Who it's for: Those who want to generate income for themselves or their heirs can use a CRT to reduce the size of their taxable estate. The beauty of charitable gifts is that they don't eat into your estate tax exemption, and with a CRT, you can receive an immediate partial tax deduction on the portion of the assets earmarked for charity, which must be at least 10%. What's more, putting highly appreciated assets into a CRT preserves their full fair market value because the trust isn't required to immediately pay capital gains taxes on the sale of those assets. Instead, the income recipient will owe taxes on any gains when the trust distributes them.

Keep in mind

Estate taxes are always a moving target, so it's important to revisit your estate plan—including your trust provisions—regularly. With state estate tax issues becoming more prevalent, managing your trust language to coordinate state tax exemptions with federal limits is a necessity. Also, possible legislative changes are on the horizon, so it's wise to keep in close contact with your team—accountant, attorney, financial consultant, tax advisor, trust and estate professional, etc.—who can help you think through your options and keep your overall planning on track.

Schwab can help you set up a trust account.

This material is intended for general informational and educational purposes only.

All expressions of opinion are subject to change without notice in reaction to shifting market, economic, or political conditions.

Investing involves risk, including loss of principal.

This information is not a specific recommendation, individualized tax or legal advice. Tax laws are subject to change, either prospectively or retroactively. Where specific advice is necessary or appropriate, individuals should contact their own professional tax and investment advisors or other professionals (CPA, Financial Planner, Investment Manager, Estate Attorney) to help answer questions about specific situations or needs prior to taking any action based upon this information.

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