Federal estate income tax rates for the 2026 tax year run 10%, 24%, 35%, and 37%, and they reach that top rate at just $16,000 of taxable income. That compression is the defining feature of how estates are taxed on the money their assets earn after death, and it drives most of the planning a fiduciary does during administration.
2026 Federal Income Tax Brackets for Estates
The IRS adjusts these thresholds each year for inflation. For the 2026 tax year:1Internal Revenue Service. Revenue Procedure 2025-32
- 10% on taxable income up to $3,300
- 24% on taxable income from $3,301 to $11,700 ($330 plus 24% of the excess over $3,300)
- 35% on taxable income from $11,701 to $16,000 ($2,346 plus 35% of the excess over $11,700)
- 37% on taxable income above $16,000 ($3,851 plus 37% of the excess over $16,000)
An estate with $20,000 of taxable income owes $5,331 in federal income tax under this schedule.
Why the Brackets Are So Compressed
A single individual doesn’t reach the 37% rate until taxable income exceeds several hundred thousand dollars. An estate reaches it at $16,000. The compressed schedule is deliberate: it creates a financial incentive for the fiduciary to push income out to beneficiaries rather than let it accumulate inside the estate, since beneficiaries almost always pay at lower personal rates.
Federal law treats the estate as its own taxpayer from the day after death until the estate closes, and it computes taxable income the way an individual would, with a few exceptions specific to estates and trusts.2Office of the Law Revision Counsel. 26 U.S.C. 641 – Imposition of Tax Interest, dividends, rent, and post-death capital gains all feed into that separate return.
This Is Not the Federal Estate Tax
Estate income tax and the federal estate tax are different obligations. The federal estate tax applies to the fair market value of everything a person owned at death and only kicks in above the exemption threshold (currently over $13 million). The rates on this page have nothing to do with that. They apply to the earnings the estate’s assets produce while it is being administered, no matter how large or small the estate itself is.
The $600 Filing Threshold
Before calculating tax, the estate subtracts a flat $600 exemption from gross income.3Office of the Law Revision Counsel. 26 U.S. Code 642 – Special Rules for Credits and Deductions The $600 figure doesn’t index for inflation and doesn’t change based on the estate’s size or the number of beneficiaries.
That same number sets the filing floor. If the estate’s gross income for the year stays below $600, there is no Form 1041 filing requirement and no tax.4Internal Revenue Service. File an Estate Tax Income Tax Return Small estates with only a modest checking account often clear this hurdle entirely and never touch the brackets above.
The 3.8% Net Investment Income Surtax
A separate 3.8% surtax on net investment income applies once the estate’s adjusted gross income exceeds the threshold where the top regular bracket starts. For 2026, that means the surtax attaches at just $16,000 of AGI.1Internal Revenue Service. Revenue Procedure 2025-32 It is assessed on the lesser of the estate’s undistributed net investment income or the amount by which AGI exceeds $16,000.
Individuals do not face this surtax until their income exceeds $200,000 (or $250,000 for married couples filing jointly). An estate that accumulates $25,000 of investment income owes 3.8% on $9,000 of it, an extra $342 stacked on top of the regular income tax.
Distributing Income to Beneficiaries Cuts the Rate
The most effective way to reduce the tax bill is to distribute income out of the estate and let the beneficiaries report it on their personal returns. When the fiduciary makes a distribution, the estate takes a deduction for the amount distributed, up to distributable net income (DNI). That deduction reduces the estate’s taxable income dollar for dollar.5Office of the Law Revision Counsel. 26 U.S.C. 661 – Deduction for Estates and Trusts Accumulating Income or Distributing Corpus The beneficiary then reports the same income, but at their own rate, which is almost always lower than the estate’s compressed brackets.
Each beneficiary receives a Schedule K-1 from the estate showing the amount and the character of the income allocated to them: ordinary dividends, interest, rental income, capital gains, and so on.6Internal Revenue Service. Schedule K-1 (Form 1041) 2025 Character carries through, so a beneficiary receiving qualified dividends from the estate pays the preferential capital gains rate on them rather than ordinary income rates.
Distributions also pull income out of the surtax calculation. If the fiduciary shifts investment income to beneficiaries before year-end, that amount is no longer undistributed net investment income at the estate level, and it may sit safely under the beneficiaries’ own much higher surtax thresholds.
Timing matters. Income kept inside the estate through the end of its tax year is taxed at the estate’s rates. Distributions made before year-end can shift that income onto returns where it will be taxed far more gently.
Filing the Return: Form 1041
The fiduciary reports the estate’s income, deductions, and distributions on IRS Form 1041 for each tax year the estate stays open.4Internal Revenue Service. File an Estate Tax Income Tax Return Before filing, the personal representative needs an Employer Identification Number for the estate, which works like a Social Security number for the entity and is required to open estate bank accounts. Applications are free on IRS.gov.7Internal Revenue Service. Information for Executors
Choosing a Tax Year
Estates are not locked into the calendar year. The fiduciary can elect a fiscal year ending on the last day of any month, so long as the first year does not exceed 12 months from the day after death. If the decedent died in October, for example, choosing a fiscal year ending in September pushes income arriving late in the calendar year into the next tax period, giving more room to plan distributions.
Deadlines and Penalties
Form 1041 is due by the 15th day of the fourth month after the close of the estate’s tax year. For calendar-year estates, that is April 15. Fiscal-year estates apply the same rule to their chosen year-end.4Internal Revenue Service. File an Estate Tax Income Tax Return
Missing the deadline triggers a failure-to-file penalty of 5% of unpaid tax per month, up to 25%. A separate failure-to-pay penalty of 0.5% per month runs at the same time. If the return is more than 60 days late, the minimum penalty is the lesser of $525 or 100% of the tax owed.8Internal Revenue Service. Topic No. 653, IRS Notices and Bills, Penalties and Interest Charges
Estimated Tax Payments
Estates expecting to owe $1,000 or more for the year after withholding and credits are generally required to make quarterly estimated payments.9Internal Revenue Service. 2026 Form 1041-ES – Estimated Income Tax for Estates and Trusts One important carve-out: estates are exempt from estimated tax for any tax year ending within two years of the decedent’s death.10Office of the Law Revision Counsel. 26 U.S.C. 6654 – Failure by Individual To Pay Estimated Income Tax Estates that close within that window often never deal with estimated payments at all. Those that remain open longer and cross the $1,000 threshold pay in four installments, with underpayment penalties calculated at the federal short-term rate plus three percentage points.