Sorting the assets is the first real task, and it is a paperwork exercise rather than a legal one. For each account, policy, vehicle and parcel, there is one question: is there another route out of the estate? A beneficiary form on file, a payable-on-death or transfer on death registration, a co-owner with a right of survivorship, or title already in the name of a trust each answers yes, and the asset is claimed from the institution rather than from a court. The absence of all four answers no, and that asset waits.
What this changes in practice is the timetable. On the first track, a surviving spouse can start on an insurance payout, a retirement account and a joint bank balance straight away, because the institution needs proof of death and proof of identity rather than proof of authority. On the second track nothing may be touched until the court has appointed someone, and probate generally takes months rather than weeks. A family that treats the whole estate as one thing waits for the slowest asset before doing anything about the fastest.
The tasks that belong to no official role. Several jobs are nobody's legal duty and still have to be done. Certified copies of the death certificate are the currency of the whole process: institutions ask for their own, and the disclosure provisions written into statute assume it — California's enactment of the digital assets act, for example, requires "a certified copy of the death certificate of the user" with each request — which is why estates commonly order several rather than one. Beyond that: notifying Social Security, any pension or annuity provider, Medicare and any private insurer; telling the employer, which matters because employer-provided life insurance, an unpaid final salary and a workplace retirement plan all sit there; canceling subscriptions and recurring payments; and notifying the credit bureaus so that a deceased person's file cannot be used to open credit. None of these requires an appointment, and none of them is on anybody's checklist by default.
The two income tax returns, which are separate filings with separate rules.
The decedent's final Form 1040 covers the part of the year they were alive. Internal Revenue Code section 6012(b)(1) says who files it: "if an individual is deceased, the return of such individual required under subsection (a) shall be made by his executor, administrator, or other person charged with the property of such decedent." That last phrase does real work, because in the common case where there is nothing to probate and nobody is ever appointed, the duty still falls on whoever is handling the property.
The estate's own income tax return, Form 1041, covers income the estate earns after the death: dividends, interest, rent, gain on a sale. A decedent's estate is a separate taxpayer, and section 6012(a)(3) sets the trigger: "every estate the gross income of which for the taxable year is $600 or more" must file. Note two things about that figure. It is gross income, not taxable income, so an estate that will owe nothing can still have to file. And it is an unindexed statutory number rather than an annually adjusted one — section 6012 contains no inflation adjustment, and the IRS's own instructions for the form repeat the $600 threshold. Section 6012(a)(5) adds a second trigger with no dollar threshold at all: "every estate or trust of which any beneficiary is a nonresident alien" must file, whatever its income. The mechanics of preparing the return, including the estate's own employer identification number, its choice of tax year and the income distribution deduction, are a separate subject.
Neither of these is the estate tax return, which is a transfer tax on very large estates and a different filing entirely.
When there is no will and nothing worth probating. Many estates consist of a car, a modest bank balance and household contents, and most states provide a simplified route for them — variously a small-estate affidavit, a summary administration or a collection by affidavit — which lets a successor collect property on a sworn statement rather than through a full administration. The thresholds, the waiting periods and what property qualifies are all state law and vary widely, so the question worth asking early is what the small-estate procedure is in the state where the person was domiciled, because if the estate fits, most of the second track disappears.
What sits elsewhere. The duties, personal liability and order of work of the person the court appoints belong to the executor's role, including the rule that paying the wrong people first can make them personally liable. The court process, the letters of appointment, the creditor claim window and how the residue is distributed belong to probate. Where there is no will, who inherits is set by the state's intestacy statute. And getting into the deceased person's online accounts is its own problem, governed in most states by a uniform act on fiduciary access to digital assets.