The qualifying surviving spouse filing status lets a widow or widower use the same tax brackets and standard deduction as a married couple filing jointly for up to two tax years after the year a spouse dies. For 2026, that means a standard deduction of $32,200, double what a single filer receives.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 To use it, you need a dependent child living with you and you need to pay most of the cost of keeping up your home.
Who Qualifies
You must meet every one of these conditions to file as a qualifying surviving spouse (QSS):2Internal Revenue Service. Qualifying Surviving Spouse Filing Status – Understanding Taxes
- You were entitled to file a joint return with your spouse for the year they died, whether or not you actually did.
- You are filing for one of the two tax years immediately after the year of death.
- You have not remarried before the end of the tax year. Remarrying at any point in the year, even on December 31, ends your eligibility.
- You have a child, stepchild, or adopted child who is your dependent and who lived in your home for the whole year.
- You paid more than half the cost of keeping up that home.
So if your spouse died in 2024, QSS is available for the 2025 and 2026 tax years, assuming the other conditions hold in each of those years.
The Qualifying Child Rules
The child has to be your child, stepchild, or adopted child. Foster children do not count, no matter how much support you provide.3Internal Revenue Service. Instructions for Form 1040
The child generally must qualify as your dependent. The IRS makes an exception in three cases: the child earned too much gross income to meet the standard dependency test, the child filed a joint return with a spouse, or someone else could claim you as a dependent on their own return. In any of those situations the child can still count toward QSS eligibility.2Internal Revenue Service. Qualifying Surviving Spouse Filing Status – Understanding Taxes
The child must live in your home for the entire calendar year. Temporary absences for school, vacation, or medical care still count as living with you.2Internal Revenue Service. Qualifying Surviving Spouse Filing Status – Understanding Taxes
What Counts Toward Household Costs
The IRS uses the same cost-of-keeping-up-a-home rules it applies to Head of Household filers.4Internal Revenue Service. Publication 501 – Dependents, Standard Deduction, and Filing Information Expenses that count toward the more-than-half threshold include:
- Rent or mortgage interest
- Real estate taxes
- Home insurance
- Repairs and maintenance
- Utilities
- Food eaten in the home
Some large expenses do not count, even though they feel like household costs. Clothing, education, medical treatment, vacations, life insurance, and transportation are excluded, and so is the value of your own labor or that of anyone else in the household.4Internal Revenue Service. Publication 501 – Dependents, Standard Deduction, and Filing Information
What QSS Actually Saves You
QSS uses the married-filing-jointly rate brackets and standard deduction. For 2026, that standard deduction is $32,200. A Head of Household filer gets $24,150; a single filer gets $16,100.1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
The brackets are wider too, so more of your income is taxed at lower rates. The 2026 brackets that apply to QSS filers are:1Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
- 10% on income up to $24,800
- 12% from $24,801 to $100,800
- 22% from $100,801 to $211,400
- 24% from $211,401 to $403,550
- 32% from $403,551 to $512,450
- 35% from $512,451 to $768,700
- 37% on income over $768,700
Because those thresholds are roughly double the single-filer thresholds, QSS can keep you from being pushed into a higher bracket after losing a second income.
How to Claim It on Your Return
You claim QSS on Form 1040 (or Form 1040-SR if you were born before January 2, 1961). Check the “Qualifying surviving spouse” box in the filing status section on the first page, and write the year your spouse died in the space provided next to it.3Internal Revenue Service. Instructions for Form 1040
You also list the qualifying child’s full legal name and Social Security number. Make sure both match the child’s Social Security card exactly. A mismatch can delay processing or reduce the tax benefits attached to that dependent.3Internal Revenue Service. Instructions for Form 1040
The Year Your Spouse Dies Is Different
QSS does not apply for the year of death itself. For that year the IRS still considers you married, as long as you do not remarry before December 31, and you can file a joint return with your deceased spouse. That final joint return gives you the full married-filing-jointly rates and deduction for the year of death.5Internal Revenue Service. Filing a Final Federal Tax Return for Someone Who Has Died
How you sign that final return depends on whether the estate has an appointed personal representative such as an executor. If one has been appointed, both you and the representative sign. If no representative has been appointed, you sign yourself and write “Filing as surviving spouse” in the signature area.6Internal Revenue Service. Topic No. 356, Decedents The IRS does not require a death certificate with the return.5Internal Revenue Service. Filing a Final Federal Tax Return for Someone Who Has Died
QSS then becomes available for the first tax year after the year of death.
When the Two Years Are Up
After the two-year window closes, your filing status depends on where you stand:7Internal Revenue Service. Filing Status
- If you are still unmarried and still pay more than half the cost of a home for yourself and a qualifying dependent, you can file as Head of Household. The 2026 standard deduction there is $24,150.
- If you no longer have a qualifying dependent or do not meet the household cost test, you file as Single, with a 2026 standard deduction of $16,100.
- If you remarry, you file jointly or separately with your new spouse.
The move from QSS to Head of Household usually produces a noticeable tax increase on the same income. Adjusting your withholding in the year QSS expires can keep you from being surprised at filing time.
What Happens If You Claim QSS When You Shouldn’t
Claiming QSS when you don’t qualify, whether because the child didn’t live with you all year, because you remarried, or for another reason, can cause you to underpay your tax. The IRS may apply an accuracy-related penalty of 20% on the portion of tax underpaid as a result.8Internal Revenue Service. Accuracy-Related Penalty Interest keeps running on both the unpaid tax and the penalty until you pay the balance.