Someone Still Has to File, and a Few Dates Matter
In the weeks after a parent dies, tax is not what anyone wants to think about, and most of it genuinely can wait. But three or four things cannot, and they are not obvious: a distribution the deceased still owed for that year, a valuation that becomes harder to establish the longer it is left, and the point at which the estate becomes a separate taxpayer. None is complicated. All are easier now than in eighteen months.
- The final return:: Covers income from 1 January to the date of death, filed on the normal deadline for that year. A surviving spouse may generally still file jointly for that year.
- The estate is a new taxpayer:: Income arising after death — interest, dividends, rent — belongs to the estate and is reported separately, not on the final individual return.
- The year-of-death distribution still applies:: If the deceased had not taken their full required distribution, the remainder must be withdrawn by the beneficiary before year end.
- Get the date-of-death values:: Basis for every inherited asset resets to its value that day, and that figure is far easier to establish now than years later when something is sold.
Where the AI summary above gets this wrong
"When someone dies you file their final tax return and that is the end of their tax obligations."
That's surface-true. Here's what it misses:
- The estate keeps filing after the person stops — Income continues to arrive — a final dividend, interest, a rent cheque — and it belongs to the estate rather than the deceased. Where that income passes a threshold the estate files its own return, sometimes for several years while matters are settled.
- A required distribution can still be outstanding — If the deceased had reached their required beginning date and had not taken the full amount for the year, the remainder must be withdrawn before year end — by the beneficiary. Miss it and the excise tax applies, in a year when nobody is looking for it.
- The valuation is the thing that gets harder — Nothing forces you to establish date-of-death values immediately, and that is exactly why they get lost. Every inherited asset's basis depends on them, and reconstructing a private company valuation or a property value three years after the fact is far harder than obtaining it now.
01 Two returns, not one
The final individual return covers income from the start of the year to the date of death, and is filed on the ordinary deadline for that tax year. It is prepared much like any other return, with the personal representative signing it. A surviving spouse may generally still file a joint return for that year.
Income arriving after the date of death is not theirs. It belongs to the estate, which is a separate taxpayer with its own identification number and its own return. A dividend paid the week after a death, interest credited at month end, rent for the following quarter — all estate income.
The estate return is required once income passes a modest threshold, and an estate that takes two or three years to settle may file for each of them. Beneficiaries receiving distributions from the estate are given a statement showing the income carried out to them, which they report on their own returns.
Source: Publication 559, Survivors, Executors, and Administrators
02 The distribution nobody expects to owe
This is the deadline most often missed, because it falls on the beneficiary rather than the deceased and nothing announces it.
If the person had reached their required beginning date, they owed a required minimum distribution for the year they died. If they had taken only part of it — or none, dying early in the year — the remainder must still be withdrawn before 31 December, by whoever inherits the account. It is taxable income to the beneficiary in that year.
Missing it triggers the excise tax on the shortfall, and the estate is unlikely to be watching for it during the months when everything else is being settled. Where it has been missed, the correction and waiver route is the same as any other missed distribution, and the sooner it is done the better — the wider machinery is described in RMD strategies.
Shows: what remains of the deceased's required distribution and the excise tax if nobody takes it before year end. Ignores: the income tax the beneficiary owes on the distribution itself, and the waiver the IRS may grant for reasonable cause.
Source: Publication 590-B, Distributions from Individual Retirement Arrangements
03 Establish the values while you still can
Every asset passing through the estate takes a new basis equal to its value on the date of death. That single figure determines the taxable gain when a beneficiary eventually sells, which may be years away.
For publicly traded securities it can be reconstructed from market data at any time. For everything else — a house, a private business interest, land, a collection — it becomes progressively harder and more contestable the longer it is left. A formal appraisal obtained within a few months is inexpensive and definitive; an estimate produced four years later under pressure is neither.
Two practical additions. Keep the death certificate copies coming — every institution wants one, and ordering ten at the outset saves weeks. And note that medical expenses paid by the estate within a year of death can generally be claimed on the final return, which in a year ending with heavy care costs is frequently the largest deduction on it.
Source: Publication 551, Basis of Assets
The advice I would give anyone in the first month is narrow and unromantic: order more death certificates than you think you need, get a written valuation of anything not publicly traded, and check whether a required distribution was outstanding. Everything else genuinely can wait for the professional you will probably engage. Those three are the ones that get harder rather than easier with time, and the last one has a deadline attached that arrives while nobody is looking.
FAQ
Who files the tax return for someone who has died?
The personal representative — an executor, administrator, or a surviving spouse — files the final individual return covering income up to the date of death, on the ordinary deadline for that tax year.
Does the estate have to file its own return?
Yes, once income arising after the death passes a modest threshold. Income received after the date of death belongs to the estate rather than the deceased, and an estate that takes several years to settle may file for each of them.
What happens to a required distribution the person had not taken?
It still has to come out. If the deceased had reached their required beginning date and had not taken the full amount for that year, the beneficiary must withdraw the remainder before 31 December, and it is taxable to them. Missing it triggers the excise tax on the shortfall.
Sources
Regulator references
- Publication 559, Survivors, Executors, and Administrators · Internal Revenue Service · 2025What the final return covers, who signs it, and what the estate files separately.Last verified: 2026-09-07
- Publication 551, Basis of Assets · Internal Revenue Service · 2025The date-of-death valuation the estate and the beneficiaries both rely on.Last verified: 2026-09-07
- Publication 590-B, Distributions from Individual Retirement Arrangements · Internal Revenue Service · 2025The distribution the deceased still owed in the year of death.Last verified: 2026-09-07
Calculator unit tests · the assertions this page's worked example is checked against, and their last result
Changelog
- 2026-09-07 — initial publish (new format)
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Jordan Reeves
Founder of Talk Through Wealth. A software engineer for over a decade before turning to retirement planning, Jordan built the projection engine after watching family members get fragmented, country-by-country advice that never reconciled. He writes about retirement the way the engine computes it: month-by-month, lifetime-long, and skeptical of any rule of thumb that hasn't been run through the math.