Do Trust Funds Get Taxed? Revocable vs. Irrevocable

Yes, trust funds do get taxed, but the answer to who pays and at what rate depends entirely on the type of trust and where the money sits. A revocable trust creates no separate tax bill during the grantor’s lifetime; its income flows onto the grantor’s personal return. An irrevocable trust is its own taxpayer and hits the top 37% federal income tax rate once retained income passes $16,000 in 2026, a threshold an individual wouldn’t reach until taxable income exceeded $640,600. When the trust distributes income to a beneficiary, the tax obligation follows the money.

Revocable Trusts During the Grantor’s Life

A revocable trust is one the grantor can change or dissolve at will. Because the grantor never gives up control, the IRS treats the trust as if it doesn’t exist for income tax purposes. Interest, dividends, rental income, and capital gains from trust assets all get reported on the grantor’s Form 1040 and taxed at individual rates, which run from 10% to 37% for 2026.¹²

Administration stays simple. The trust uses the grantor’s Social Security number, there’s no separate fiduciary return, and creating the trust changes nothing about the annual tax bill. A revocable trust is an estate planning tool, not a tax reduction strategy.

What Changes When the Grantor Dies

A revocable trust typically becomes irrevocable by its own terms when the grantor dies. From that point on, the trust is a separate taxpaying entity. The successor trustee must obtain an Employer Identification Number and begin filing Form 1041, the U.S. Income Tax Return for Estates and Trusts.³

This transition catches some families off guard. A trust that quietly held a house and investment accounts for decades suddenly has its own filing obligations, its own compressed brackets, and its own exposure to the Net Investment Income Tax. A partial-year return is usually required for the period after the death, and trustees who don’t move quickly on the EIN and withholding can trigger penalties.

How Irrevocable Trusts Are Taxed

An irrevocable trust is a separate taxpayer from day one. The trustee files Form 1041, and the trust pays tax on income it retains. What makes trust-level taxation punishing is how fast the rates climb.

The Compressed Brackets

For 2026, an irrevocable trust pays:

10% on income up to $3,300
24% on income from $3,301 to $11,700
35% on income from $11,701 to $16,000
37% on income above $16,000

The top rate arrives at just $16,000 of taxable income.⁴ For comparison, a single individual doesn’t reach 37% until taxable income tops $640,600.⁵ The compression is intentional. Congress designed it to discourage parking income inside trusts instead of distributing it to beneficiaries who pay lower individual rates.

Capital Gains Inside a Trust

Long-term capital gains follow the same 0%, 15%, and 20% rate structure as individual returns, but the thresholds are just as tight. For 2026, the 0% rate applies only up to $3,300. The 15% rate covers gains between $3,300 and $16,250. Anything above $16,250 is taxed at 20%.⁴ A trust holding appreciated stock that generates even modest gains can land in the top capital gains bracket quickly.

The Net Investment Income Tax

On top of ordinary and capital gains rates, irrevocable trusts face a 3.8% Net Investment Income Tax on the lesser of undistributed net investment income or adjusted gross income above the threshold where the highest bracket begins.⁶ For 2026, that threshold is $16,000.⁴ A trust retaining $50,000 of investment income could owe 37% in ordinary income tax plus 3.8% NIIT on the amount above $16,000, pushing the effective rate above 40%. For individuals, the NIIT doesn’t kick in until income exceeds $200,000 (single) or $250,000 (married filing jointly).

Administrative Deductions

Trusts can deduct costs that exist only because the property is held in trust: trustee fees, legal expenses for trust administration, and accounting costs. These survived the 2017 suspension of miscellaneous itemized deductions for individuals because they’re treated as above-the-line deductions for trust purposes.⁷ Corporate trustees typically charge 1% to 3% of trust assets annually, so the deduction is meaningful. It reduces taxable income before the compressed brackets apply.

How Beneficiaries Are Taxed on Distributions

Once money leaves the trust and reaches a beneficiary, the tax picture shifts. Whether the beneficiary owes anything depends on whether the distribution comes from income or from principal.

Principal vs. Income

Distributions of principal are generally tax-free to the beneficiary. If a trust was funded with $500,000, and the trustee pays out $50,000 of that original corpus, no income tax is due. Those assets already went through the gift or estate tax system when the trust was created. Distributions of current-year earnings — interest, dividends, rents, capital gains allocated to income — do carry a tax obligation, and it shifts from the trust to the beneficiary.

Distributable Net Income and the K-1

The mechanism preventing double taxation is called Distributable Net Income (DNI). DNI caps both the deduction the trust claims for distributions and the amount the beneficiary reports as income. If a trust earned $30,000 and distributed $50,000, the beneficiary reports $30,000; the extra $20,000 is a tax-free return of principal. The trust deducts the $30,000 it paid out, so the income is taxed only once, at the beneficiary’s rates.

The trust reports each beneficiary’s share on Schedule K-1 (Form 1041), which the beneficiary uses on their own return.⁸ The K-1 breaks down the character of the income — ordinary income, qualified dividends, capital gains — because each has its own rate on the beneficiary’s return.

Distributing income to beneficiaries usually saves tax overall. A beneficiary in the 22% bracket receiving income that would have been taxed at 37% inside the trust creates real savings. That’s why trustees managing irrevocable trusts typically try to distribute income rather than accumulate it.

The 65-Day Rule

Trustees don’t always know a year’s exact income figure until well after it ends. The 65-day rule gives them a cushion. A trustee can make a distribution within the first 65 days of a new tax year and elect to treat it as if made on the last day of the prior year.⁹ For a calendar-year trust, a distribution made by March 6 can count against the prior year. The election is made on Form 1041 and is irrevocable for that year. It’s one of the most useful tools for managing a trust’s tax exposure in years with unexpectedly high returns.

Estate, Gift, and Generation-Skipping Taxes

Income tax is only one layer. Trusts also interact with the federal transfer tax system, which governs how much wealth can move to others during life or at death before a 40% tax applies.

The Estate and Gift Tax Exemption

For 2026, each individual can transfer up to $15,000,000 free of federal estate tax.¹⁰ The One Big Beautiful Bill Act, signed July 4, 2025, made this exemption permanent and left it subject to future inflation adjustments.¹¹ Transfers above $15 million are taxed at 40%.

Lifetime gifts and estate transfers share a single unified $15 million cap. Give away $5 million during life and the remaining exemption at death drops to $10 million. Assets in a revocable trust are included in the grantor’s gross estate because the grantor never relinquished control. Many irrevocable trusts, by contrast, are structured specifically to move assets outside the taxable estate.

Annual Gift Exclusion

Separate from the lifetime exemption, you can give up to $19,000 per recipient per year in 2026 without touching your lifetime amount.¹² A married couple can combine exclusions to give $38,000 per recipient. Gifts to trusts can qualify only if the beneficiary has a present right to withdraw the contribution, commonly structured through a Crummey withdrawal power. Gifts to trusts without a present interest consume the lifetime exemption instead.

Step-Up in Basis

Assets passing through a trust at the grantor’s death generally receive a stepped-up basis equal to fair market value on the date of death.¹³ If the grantor bought stock for $50,000 and it was worth $500,000 at death, the beneficiary’s new basis is $500,000. Selling immediately produces no capital gain. This applies to assets in revocable trusts that are included in the estate. Assets held in certain irrevocable trusts fully removed from the estate may not receive a step-up, which means beneficiaries could face capital gains tax on decades of appreciation when they sell. The choice between estate tax savings and step-up eligibility is one of the central trade-offs in trust design.

The Generation-Skipping Transfer Tax

Trusts benefiting grandchildren or more remote descendants face an additional layer. Without the generation-skipping transfer (GST) tax, a wealthy family could set up a trust for grandchildren and skip an entire round of estate tax. The GST tax closes that gap with a flat 40% tax on transfers that skip a generation.¹⁴

A “skip person” is generally someone two or more generations below the transferor, such as a grandchild.¹⁵ The GST tax has its own exemption matching the estate tax exemption ($15 million for 2026), and it can be allocated to specific trusts or transfers.¹⁰ Proper allocation of the GST exemption when the trust is funded is critical and frequently overlooked.

State Taxes

Federal rules are only part of the picture. Around a dozen states and the District of Columbia impose their own estate taxes, with exemptions ranging from $2 million up to amounts that match the federal level. A handful of states impose inheritance taxes based on the beneficiary’s relationship to the deceased, with thresholds as low as $1,000 for distant relatives. Maryland is the only jurisdiction with both an estate tax and an inheritance tax.

State income tax on irrevocable trusts also varies widely. Some states tax a trust based on where the grantor lived when it was created. Others look at where the trustee sits or where the beneficiaries reside. Texas and Florida impose no state income tax on trusts at all. Where a trust is established and administered can meaningfully change the overall tax burden, particularly for trusts with large amounts of undistributed income, so trust situs is worth discussing with an attorney before the trust is created.

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. Federal Income Tax Rates and Brackets
3
Office of the Law Revision Counsel. 26 USC 641 – Imposition of Tax
4
Internal Revenue Service. 2026 Form 1041-ES Estimated Income Tax for Estates and Trusts
5
Tax Foundation. 2026 Federal Income Tax Brackets and Rates
6
Office of the Law Revision Counsel. 26 US Code 1411 – Imposition of Tax
7
Office of the Law Revision Counsel. 26 US Code 67 – 2-Percent Floor on Miscellaneous Itemized Deductions
8
Internal Revenue Service. Instructions for Schedule K-1 (Form 1041) for a Beneficiary
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Office of the Law Revision Counsel. 26 USC 663 – Special Rules Applicable to Sections 661 and 662
10
Internal Revenue Service. What’s New – Estate and Gift Tax
11
Office of the Law Revision Counsel. 26 US Code 2010 – Unified Credit Against Estate Tax
12
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
13
Office of the Law Revision Counsel. 26 USC 1014 – Basis of Property Acquired from a Decedent
14
Office of the Law Revision Counsel. 26 USC Chapter 13 – Tax on Generation-Skipping Transfers
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Office of the Law Revision Counsel. 26 US Code 2613 – Skip Person and Non-Skip Person Defined