Estimated Taxes for Estates and Trusts

Estates and trusts pay estimated tax on the same quarterly rhythm as individuals, using Form 1041-ES vouchers or EFTPS. But the fiduciary rules carry two twists worth real money: a two-year grace period for new estates, and a year-end election that can hand estimated payments over to beneficiaries.

Here is the framework as the IRS states it on the current Form 1041-ES, plus the deadlines that catch fiduciaries.

Who must pay — the trigger and safe harbors

From the 2026 Form 1041-ES: a fiduciary must pay estimated tax if the estate or trust is expected to owe, after subtracting withholding and credits, at least $1,000, and expects withholding and credits to be less than the smaller of 90% of the tax shown on this year’s return, or 100% of the tax shown on last year’s return — 110% of that amount if the estate’s or trust’s adjusted gross income on the prior return exceeded $150,000.

The prior-year safe harbor is unavailable if no return was filed last year or last year’s return covered less than 12 months. Farmers and fishers substitute 66⅔% for the 90% figure.

The two-year exemption for estates

No estimated tax payments are required from a decedent’s estate "for any tax year ending before the date that is 2 years after the decedent’s death." The same grace covers a trust that was treated as owned by the decedent — the classic revocable living trust — but only if that trust will receive the residue of the estate under the will, or, when no will is admitted to probate, is the trust primarily responsible for paying debts, taxes, and administration expenses.

Two boundaries matter. First, the exemption belongs to estates and that specific residuary trust — an ordinary new trust gets no grace period. Second, the measure is tax years ending before the two-year date, so an estate on a fiscal year can stretch the covered period.

Also exempt: an estate or domestic trust that had a full 12-month prior tax year with no tax liability owes no estimates this year — the same zero-liability rule individuals use.

Due dates and the January shortcut

Calendar-year 2026 installments are due April 15, June 15, and September 15, 2026, and January 15, 2027. A trust can skip the January installment entirely by filing its Form 1041 by January 31 and paying the full balance with the return.

Fiscal-year estates shift the schedule: pay in full by the 15th day of the 4th month of the tax year, or in four equal installments due in the 4th, 6th, and 9th months and the 1st month of the following year.

Handing payments to beneficiaries: the 643(g) election

A fiduciary can elect under section 643(g) to treat estimated payments as made by beneficiaries rather than the entity — useful in a final year when income is flowing out on K-1s but the payments sit with the trust. The vehicle is Form 1041-T, and its deadline is unforgiving: the election is valid only if Form 1041-T is filed "by the 65th day after the close of the tax year." For a calendar 2025 trust, that was March 6, 2026.

The allocated amounts reach each beneficiary through Schedule K-1 box 13, code A, and land on the beneficiary’s Form 1040 as tax payments. Miss the 65-day window and the IRS disallows the transfer — the payments stay with the entity.

Frequently asked questions

Do estates really skip estimated taxes for two years?⌄

Yes. The Form 1041-ES instructions exempt a decedent’s estate for any tax year ending before the date two years after death. The estate still owes the tax with its Form 1041 — the grace only removes the quarterly prepayment requirement and its underpayment penalties.

Does a new irrevocable trust get the same two-year grace?⌄

No. The only trust covered is one the decedent was treated as owning that receives the estate residue (or is primarily responsible for debts, taxes, and expenses when no will is probated). Any other trust follows the normal $1,000/safe-harbor rules from its first year.

What are the safe harbors to avoid an underpayment penalty?⌄

Pay in through withholding and estimates the smaller of 90% of the current year’s tax or 100% of the prior year’s tax — 110% of prior-year tax if the estate’s or trust’s AGI on that return exceeded $150,000. The prior-year harbor requires a full 12-month prior-year return.

How do trust estimated payments get to beneficiaries?⌄

Through the section 643(g) election on Form 1041-T, filed by the 65th day after year end. The amounts show up on each beneficiary’s Schedule K-1 in box 13 code A and count as their own tax payments. Filed late, the election fails and the payments remain the trust’s.

Can the trust just pay everything with the return instead of the January voucher?⌄

For the final installment, yes: file the Form 1041 by January 31 and pay the entire balance due with it, and the January 15 installment is excused. The earlier installments still had to be paid on schedule.

Related guides

Official sources

Tax rules, rates and deadlines change — verify current requirements against the IRS sources above before acting. This guide is general information, not tax or legal advice.

Estimated Taxes for Estates and Trusts (Form 1041-ES)