Qualifying Surviving Spouse (QSS)

Qualifying surviving spouse is the federal filing status available for the two taxable years following the year a spouse dies, to a survivor who has not remarried, who pays more than half the cost of keeping up a home, and whose child or stepchild lived in that home. The name changed and the rules did not. The 2022 Form 1040 instructions announced it directly: "Filing status name changed to qualifying surviving spouse. The filing status qualifying widow(er) is now called qualifying surviving spouse. The rules for the filing status have not changed." That was a labelling change effective for tax year 2022, and it brought the form into line with the statute, because section 2(a) of the Internal Revenue Code has always been captioned "Definition of surviving spouse" and has never used the word widow. A return filed for 2021 or earlier says qualifying widow or widower for the identical status.

The year of death is the most-misstated part of the whole subject. Publication 501 is unambiguous: if your spouse died during the year you can use married filing jointly for that year, and "the year of death is the last year for which you can file jointly with your deceased spouse." This status begins after that. So a survivor whose spouse died in one year files jointly for that year and may use qualifying surviving spouse for the two years following, which is a three-year run of joint rates in total rather than two.

Five tests, and each one has a detail worth reading. Publication 501 lists them. First, you were entitled to file a joint return with your spouse for the year of death, and it does not matter whether you actually filed one; the test looks at entitlement rather than at behaviour, which matters for a survivor who filed separately that year for reasons of their own. Second, your spouse died in one of the two preceding years and you did not remarry before the end of the current year. Third, you have a child or stepchild whom you can claim as a dependent, or could claim except that the child's gross income reached the annual threshold, or the child filed a joint return, or you yourself could be claimed as a dependent on someone else's return. Fourth, that child lived in your home all year, apart from temporary absences, with separate exceptions for a child born or dying during the year and for a kidnapped child. Fifth, you paid more than half the cost of keeping up the home for the year.

The relationship list is narrower than head of household's, and it is the boundary that trips people. Section 2(a)(1)(B)(i) names a son, stepson, daughter or stepdaughter, and Publication 501 adds the exclusion in parentheses: not a foster child. Head of household reaches further, to a qualifying child including a grandchild, to any other dependent relative, and to a parent who need not even live with the taxpayer. So a widow supporting a grandchild, or a widower supporting his mother, has a real filing status available and it is head of household rather than this one. The residency test also runs the other way: this status requires the child in the home for the whole year, while head of household asks only for more than half of it.

Dependency is required here and is not required for head of household, which is the asymmetry behind most wrong answers. Section 2(a)(1)(B) describes the qualifying person as "a dependent" who is a son, stepson, daughter or stepdaughter and with respect to whom the taxpayer is entitled to a deduction under section 151. Head of household's equivalent clause asks for a qualifying child and requires no dependency at all. Three provisions are switched off when the relationship is tested, and they are what Publication 501's three exceptions are made of: section 152(b)(1), which stops a person who is themselves someone else's dependent from having dependents, section 152(b)(2), which disqualifies a dependent who files a joint return, and section 152(d)(1)(B), the gross-income test, which for 2026 sets the limit at $5,300. Read together, a survivor who could be claimed on a parent's return, or whose adult child earns too much to be claimed, or whose child filed jointly with a spouse, still has a qualifying person.

Why a foster child is excluded while an adopted child is not. The parenthetical in Publication 501 looks arbitrary, and it follows from the drafting. Section 152(f)(1)(A) defines a child in two limbs, (i) a son, daughter, stepson or stepdaughter and (ii) an eligible foster child. Section 2(a)(1)(B)(i) names only the four relationships in the first limb, so the foster limb is never reached. Adoption arrives by a different route: section 152(f)(1)(B) treats a legally adopted individual, and an individual lawfully placed for legal adoption, as a child by blood for the purpose of establishing exactly those relationships. So an adopted child qualifies a survivor and a foster child does not, and the reason is which subparagraph the status points at.

The residency test is the whole year, with four documented ways it bends. Temporary absences count as time at home on the same terms as for head of household: illness, education, business, vacation, military service or detention in a juvenile facility, provided a return is reasonably expected and the survivor keeps up the home throughout. Where the child is born or dies during the year, the survivor must have furnished more than half the cost of a home that was the child's main home for the entire part of the year the child was alive, which is stricter than the more-than-half measure head of household applies to the same situation. A child adopted during the year, or lawfully placed for adoption during it, counts as having lived in the home for the whole year if the home was the child's main home for the entire time since the placement. And a kidnapped child can continue to support the status where law enforcement presumes the abduction was by someone outside both families and the child lived in the home for more than half of the part of the year before the kidnapping. Note that test is looser than the whole-year residence rule this status otherwise applies.

The entitlement test, and what the odd cross-reference in it is doing. Section 2(a)(2)(B) requires that for the year of death a joint return "could have been made under the provisions of section 6013 (without regard to subsection (a)(3) thereof)." Section 6013(a)(3) is the procedural rule about who may make a joint return once a spouse has died, generally the executor or administrator, or the surviving spouse where no representative has been appointed in time. Setting it aside is precisely why Publication 501 can say it does not matter whether a joint return was actually filed: the question is whether the substantive bars were absent, not whether the mechanics were carried out. Those bars are worth knowing, because they are where this test actually fails. Section 6013(a)(1) blocks a joint return where either spouse was a nonresident alien at any time during the year, absent an election to treat that spouse as a resident, and section 6013(a)(2) blocks it where the spouses had different taxable years, with an exception for years ending on different days because of a death. That exception applies only where the two taxable years begin on the same day, and it lapses if the survivor remarries before the close of their own taxable year, so a remarriage in the year of the death can cost the joint return for that year as well as the status for later ones. It lapses again where the survivor's taxable year is a short one under section 443(a)(1).

What the status actually confers, stated precisely because it is routinely overstated. Publication 501: "This filing status entitles you to use joint return tax rates and the highest standard deduction amount (if you don't itemize deductions). It doesn't entitle you to file a joint return." The practical content of that distinction is that the survivor files their own return, reports only their own income, signs alone, and takes on no joint and several liability for the year. What they get is the section 1(a) rate schedule, which is the same table a married couple filing jointly uses, and the standard deduction that goes with it, $32,200 against $16,100 for a single filer.

Two boundary rules and one rarely-seen extension. Section 2(a)(2)(A) removes the status from anyone who has remarried at any time before the close of the taxable year, though remarrying opens the joint election with the new spouse instead. Section 2(a)(2)(B) requires that a joint return could have been made for the year of death, which is the statutory form of the entitlement test. And section 2(a)(3) contains a narrow rule for a spouse who was in missing status as a result of service in a combat zone, under which the date treated as the date of death, and therefore the start of the two-year window, is set by reference to the official determination rather than to the actual date.

How to signal it on the return. The status is claimed by checking the qualifying surviving spouse box in the Filing Status block of Form 1040. Where the child who qualifies the survivor is not being claimed as a dependent in the Dependents section, the form asks for the child's name in the entry space below the checkboxes, and Publication 501 warns that leaving it blank slows processing.

The figures are the joint filer's figures, and that is the point of the status rather than a shortcut in presenting it. Section 1(a) of the Internal Revenue Code imposes one rate schedule on a joint return and on "every surviving spouse", so there is no separate surviving-spouse rate table to publish and the annual revenue procedure contains none. The standard deduction reaches the same place by a different mechanism: section 63(c)(2)(A) sets the basic standard deduction at 200% of the single figure for a joint return and for a surviving spouse as defined in section 2(a), by formula rather than as a separately stated amount, so those two cannot drift apart. One wording note follows from all this. The statutory term throughout is "surviving spouse"; "qualifying surviving spouse" is the Form 1040 label, which is why the revenue procedures never use that phrase even though the form and the tax software do.

The row for 2026 is drawn from this site's single source of truth for year-indexed figures, so it moves when the IRS publishes the next set. Every dollar amount is the top of that rate's band, which is the "not over" figure the IRS prints rather than the point at which the next rate starts: taxable income sitting exactly on a boundary is taxed entirely at the lower rate, and the next rate reaches only the excess above it. Anything above the last column is taxed at 37%. The five earlier rows are history and will not change.

The step between 2025 and 2026 in the two lowest boundaries is real, not a transcription error. The top of the 10% band and the top of the 12% band rose about 4% while the four boundaries above them rose about 2.3%, because section 70101(b) of the One Big Beautiful Bill Act narrowed the calendar-year-2017 base-year substitution in section 1(j)(3)(B)(i) so that it reaches only the upper boundaries. The two lower ones fall back to the default 2016 base, which is one additional year of indexing. In proportional terms it is a single change in level rather than the start of a widening trend. The 2025 standard deduction is a statutory figure rather than an indexed one for a related reason: section 70102 of the same Act raised the "any other case" amount in section 63(c)(7)(A)(ii), which section 63(c)(2)(A) then doubles for a surviving spouse, superseding the lower amount originally published for that year. Note the doubling rather than a separately stated figure: there is no surviving-spouse amount in section 63(c)(7) to raise.

What the table is worth to a survivor is the comparison it does not show. The alternative once the window closes is head of household if a qualifying person is still at home and single if not, and both carry materially narrower bands and a smaller standard deduction than the joint figures above. That gap is the size of the cliff at the end of the second year, and it arrives in a year when nothing about the household itself has changed.

The status is a test applied year by year, so the useful way to see it is as a sequence rather than as a calculation.

A hypothetical example. Bea's husband dies in March of the first year. For that first year she files a joint return, because marital status is fixed at the date of death rather than at year end, and that is the last joint return the couple will ever file. In the second and third years her son lives at home the whole time, she pays more than half the cost of the household, and she has not remarried, so she files as a qualifying surviving spouse. She reports only her own income on her own return and signs it alone, but she computes tax from the married-filing-jointly column and takes the joint standard deduction, $32,200 rather than the $16,100 a single filer would take. In the fourth year the window has closed no matter what her son does, so she tests head of household instead, and files single if that does not fit either.

Two ways the sequence can break earlier. If Bea remarries in the second year, she is not a qualifying surviving spouse for that year at all, though she can file jointly with her new spouse. And if her son moves out partway through the second year, the all-year residency test fails for that year even though the two-year window is still open, in which case head of household becomes the status to test, since it asks only that a qualifying person lived in the home for more than half the year.

A second hypothetical, where the intuitive answer is wrong twice over. Tomas's husband dies in February, and the couple's tax affairs that year are complicated enough that Tomas files a separate return rather than a joint one. Their 17-year-old daughter lives at home throughout, and Tomas pays every household bill. Tomas assumes that having filed separately for the year of the death, he has forfeited the status for the years that follow. He has not: the first test asks whether a joint return could have been made, not whether one was, so filing separately in the year of death costs him nothing prospectively. The second wrong assumption is the one that would cost him money. When his daughter turns 19 and starts work, Tomas assumes the status ends with her dependency. It ends instead when the two-year window runs out, whichever happens first, and if her earnings are the only obstacle to claiming her, the gross-income exception keeps her a qualifying person in the meantime. The word "only" is doing real work there. Section 2(a)(1)(B) sets aside the gross-income test but not the support test, so once a daughter with a job is meeting more than half of her own support, she stops being a qualifying person on a ground the exception does not reach — and for a 19-year-old who is not a student, support is the likelier obstacle of the two.

A third hypothetical, on the year a child dies. Halina's wife died two years ago, and her daughter dies in August of the current year. The test does not simply fail. Halina remains eligible for the year if she furnished more than half the cost of a home that was her daughter's main home for the entire part of the year her daughter was alive, so a home kept up from January to August qualifies while one the child moved into in March would not. Note the contrast with head of household, which asks only for more than half of the part of the year the qualifying person was alive.

One note on reading the rate table above. A surviving spouse with taxable income of exactly $24,800 is taxed at 10% on all of it, because the boundary dollar falls inside the lower band. One with taxable income of $100,800 pays 10% on the first $24,800 and 12% on the rest, not 12% on the whole amount.

What the status does for a survivor

• Preserves the joint rate schedule and the joint standard deduction for two years after the year of death, at the point when a household's income has often fallen but its costs have not.
• Carries none of the exposure of a joint return. The survivor reports only their own income and takes on no joint and several liability for the year.
• Turns on entitlement to have filed jointly for the year of death rather than on whether a joint return was actually filed.
• Income-tested limits written for a joint filer generally apply, so a phase-out is reached later than it would be on a single return.

Limits and cautions

• The relationship list is narrow. Only a child or stepchild counts, and a foster child is specifically excluded, so a survivor raising a grandchild does not qualify.
• The child has to live in the home for the whole year, which is stricter than the head of household test.
• Two years is a cliff rather than a taper. In the third year after the death the status is simply gone.
• Remarrying before the end of a year removes it for that year.
• It is not a joint return, so nothing about the deceased spouse's income, deductions or credits carries into it.