What Are the Tax Benefits of Setting Up a Trust?

The tax benefits of setting up a trust fall into four main categories: shrinking your taxable estate, shifting income to family members in lower brackets, skipping a generation of transfer tax, and generating charitable deductions. Which of these you actually get depends almost entirely on whether the trust is revocable or irrevocable, and the biggest savings come with real costs, including loss of control and, in many cases, loss of the step-up in basis your heirs would otherwise receive. With the federal estate tax exemption permanently set at $15 million per individual for 2026, the math has shifted for many families.

Revocable Trusts Save No Federal Tax

A revocable trust, often called a living trust, lets you change the terms, pull assets out, or dissolve it entirely. The IRS treats everything inside as though you still own it. All trust income goes on your personal return, and every dollar in the trust counts toward your taxable estate at death.¹ The real reasons to use one are probate avoidance and privacy, not tax reduction.

Irrevocable trusts require you to permanently surrender ownership and control. You generally cannot take assets back or rewrite the terms. Because you no longer own the property, it’s typically excluded from your taxable estate. That exclusion is where the major federal tax savings come from, and every benefit below except one flows from it.

Reducing Your Taxable Estate

The federal estate tax takes up to 40% of everything above the exemption threshold.² For 2026 that threshold is $15 million per individual, and married couples electing portability can shield up to $30 million combined.³ The One Big Beautiful Bill Act, signed in July 2025, permanently set this amount and indexed it for inflation, replacing the temporary Tax Cuts and Jobs Act increase that had been scheduled to expire.

Move assets into an irrevocable trust and those assets, along with all future appreciation, fall outside your estate. Transfer $5 million in stock today, watch it grow to $12 million by the time you die, and none of that $12 million counts toward the $15 million threshold. The value is frozen at the time of the gift for transfer tax purposes, which makes irrevocable trusts especially powerful for assets likely to appreciate.

The biggest risk here is retaining too much control. If you keep receiving income from the transferred property, or hold power over who benefits from it, the IRS pulls those assets right back into your estate.⁴ A common mistake: transferring your home to an irrevocable trust and continuing to live in it rent-free. The IRS views that as retaining enjoyment of the property, and the full value snaps back into the estate as if the transfer never happened.⁵

Smaller transfers can use the annual gift tax exclusion, which is $19,000 per recipient for 2026, without touching your lifetime exemption.² Crummey trusts use this technique by giving beneficiaries a temporary withdrawal right over each contribution, which qualifies the transfer as a present-interest gift eligible for the annual exclusion.

The Step-Up in Basis Trade-Off

When someone dies and leaves property to heirs, the cost basis normally resets to fair market value at the date of death.⁶ If a parent bought stock for $10,000 and it’s worth $500,000 at death, the heir inherits a $500,000 basis and can sell the next day with zero capital gains tax. This step-up is one of the most valuable features of inherited property.

Here’s the catch: the step-up only applies to property included in the decedent’s gross estate. Revocable trust assets qualify automatically because they remain part of your estate. Assets in an irrevocable trust designed to exclude property from your estate typically do not qualify, because the whole point of the trust was to remove them.⁶ Beneficiaries inherit the original low basis instead.

This is a genuine trade-off. An irrevocable trust saves up to 40% estate tax on amounts above $15 million, but beneficiaries may owe up to 23.8% capital gains tax (the 20% long-term rate plus the 3.8% net investment income tax) when they eventually sell appreciated assets carrying the old basis.⁷ For estates well above $15 million, the estate tax savings usually win the math. For estates near or below the threshold, the lost step-up can cost more than any estate tax you would have saved.

Certain assets never receive a step-up regardless of how they’re held. Traditional IRAs, 401(k)s, annuities, and other retirement accounts carry their built-in tax liability to the beneficiary. These are classified as income in respect of a decedent and are specifically excluded from the basis reset. Putting them in a trust doesn’t change that.

Shifting Income to Lower-Bracket Beneficiaries

Non-grantor trusts are separate taxpayers with their own tax ID and their own return. When a non-grantor trust earns income and keeps it, the trust pays tax at its own rates. When the trustee distributes income to beneficiaries, the trust claims a deduction for the distributed amount, and the beneficiaries report that income on their personal returns instead.⁸ Trusts required to distribute all income currently receive the same deduction.⁹

Beneficiaries in lower brackets pay far less on the same income. A trust holding $50,000 of ordinary income would owe tax at the 37% rate. Flow that income to a beneficiary in the 12% bracket and the family keeps roughly $12,500 that would have gone to the IRS. The trustee issues each beneficiary a Schedule K-1 showing their share and type of income, which they report on their personal Form 1040.¹⁰

Grantor trusts work differently. The IRS treats the grantor as the owner for income tax purposes, so all trust income goes on the grantor’s personal return.¹ Income splitting during the grantor’s lifetime is available only through non-grantor trusts.

Why Undistributed Trust Income Is Punished

Trusts have their own federal income tax schedule, and it’s compressed to a degree that surprises most people. For 2026, a trust reaches the top 37% bracket at just $16,000 of taxable income.³ An individual doesn’t hit that rate until taxable income exceeds roughly $626,000. The 2026 trust and estate schedule:

10% on the first $3,300
24% from $3,301 to $11,700
35% from $11,701 to $16,000
37% on everything above $16,000

The 3.8% net investment income tax adds another layer. For trusts, it applies to the lesser of undistributed net investment income or adjusted gross income above the top-bracket threshold, which is also $16,000 for 2026.¹¹ Undistributed investment income inside a trust can face an effective top rate of 40.8%.

These brackets are exactly why the distribution deduction matters so much. A trustee who accumulates income inside the trust without a specific reason, such as building reserves or protecting a spendthrift beneficiary, is handing money to the IRS unnecessarily.

Skipping a Generation of Transfer Tax

The federal generation-skipping transfer (GST) tax imposes a 40% levy on transfers to people two or more generations below the transferor, typically grandchildren.¹² Without planning, wealth passed from grandparent to grandchild can be hit by the estate tax at the parent’s generation and then the GST tax, shrinking the inheritance dramatically.

Each person has a GST exemption equal to the basic estate tax exclusion: $15 million for 2026.¹³ Allocating this exemption to transfers into a properly structured trust, such as a dynasty trust, lets assets pass through multiple generations without triggering the GST tax at each level.²

Dynasty trusts are built to last for centuries in jurisdictions that have eliminated or extended the rule against perpetuities. Because no beneficiary ever owns the assets outright, the trust property isn’t included in any beneficiary’s estate. The GST exemption allocated at funding covers not just the original contribution but all future growth, which is what makes early allocation so powerful for rapidly appreciating assets.

Charitable Deductions Through CRTs and CLTs

Charitable trusts combine philanthropy with tax savings. Two main structures work in opposite directions.

A Charitable Remainder Trust pays income to you or your beneficiaries for a set term, then distributes what remains to charity. You get an income tax deduction when you fund the trust, based on the present value of the charity’s future remainder interest.¹⁴ Because CRTs are tax-exempt, the trustee can sell appreciated assets inside the trust without triggering immediate capital gains tax. This helps when you hold a concentrated stock position and need to diversify without taking a large tax hit in a single year.

A Charitable Lead Trust does the reverse: the charity receives income payments for a set term, and the remaining assets pass to your heirs. The value of the gift to heirs is reduced by the present value of the charity’s income stream, which can significantly lower the gift or estate tax on the transfer. The size of the deduction for both structures hinges on the IRS Section 7520 interest rate, which changes monthly and sits around 4.8% in early 2026.¹⁵

State Taxes Can Undo Federal Planning

The $15 million federal exemption isn’t the whole story. Roughly a dozen states and the District of Columbia impose their own estate taxes, and most set exemptions far below the federal level. Some start collecting on amounts above $1 million. Five states also levy separate inheritance taxes, where the rate depends on the beneficiary’s relationship to the deceased rather than the size of the estate.

A trust well-optimized for federal taxes can still trigger a substantial state tax bill. Planning should account for the state where the grantor lives, where the trust is administered, and where trust property is located. Moving a trust’s situs to a state without income or estate tax is a common technique, though states have grown more aggressive about challenging these arrangements when grantors or beneficiaries still reside within their borders.

What a Trust Costs to Run

Every domestic non-grantor trust with at least $600 in gross income must file Form 1041.¹⁶ Grantor trusts have more flexible reporting options but still require either a separate return or reporting on the grantor’s personal return. Virtually any trust holding income-producing assets crosses the $600 threshold.

Missing the deadline triggers a penalty of 5% of unpaid tax for each month the return is late, up to 25%. If the return is more than 60 days overdue, the minimum penalty is the lesser of $525 or the full tax due.¹⁶ Trusts expecting to owe $1,000 or more must also make quarterly estimated payments, due April 15, June 15, September 15, and January 15 of the following year.¹⁷

Professional trustee fees add a recurring expense. Corporate trustees typically charge between roughly 0.10% and 1.00% of trust assets annually, with lower rates on larger portfolios and a minimum annual fee. Between trustee compensation, tax preparation, legal counsel, and investment management, ongoing costs can run several thousand dollars a year. Weigh those costs against projected tax savings before setting up any trust structure, especially for estates that fall comfortably below the $15 million federal exemption, where the estate tax benefits may be minimal.

1
Office of the Law Revision Counsel. 26 USC 671 – Trust Income, Deductions, and Credits Attributable to Grantors and Others as Substantial Owners
2
Internal Revenue Service. What’s New – Estate and Gift Tax
3
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
4
Office of the Law Revision Counsel. 26 USC 2036 – Transfers With Retained Life Estate
5
eCFR. 26 CFR 20.2036-1 – Transfers With Retained Life Estate
6
Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired From a Decedent
7
Internal Revenue Service. Topic No. 409, Capital Gains and Losses
8
Office of the Law Revision Counsel. 26 USC 661 – Deduction for Estates and Trusts Accumulating Income or Distributing Corpus
9
Office of the Law Revision Counsel. 26 USC 651 – Deduction for Trusts Distributing Current Income Only
10
Internal Revenue Service. Instructions for Schedule K-1 (Form 1041) for a Beneficiary Filing Form 1040 or 1040-SR
11
Internal Revenue Service. Topic No. 559, Net Investment Income Tax
12
Office of the Law Revision Counsel. 26 USC Chapter 13 – Tax on Generation-Skipping Transfers
13
Office of the Law Revision Counsel. 26 USC 2631 – GST Exemption
14
Office of the Law Revision Counsel. 26 USC 170 – Charitable Contributions and Gifts
15
Internal Revenue Service. Section 7520 Interest Rates
16
Internal Revenue Service. Instructions for Form 1041 and Schedules A, B, G, J, and K-1
17
Office of the Law Revision Counsel. 26 USC 6654 – Failure by Individual to Pay Estimated Income Tax