Filing status questions tax pros should ask every client

Choosing the correct filing status can have a significant impact on a client’s return, affecting not only the client’s standard deduction but also eligibility for key tax benefits and, ultimately, their refund. While the answer may appear straightforward, marital status, living arrangements and special rules can require a closer look.

The questions that follow highlight common filing status issues practitioners may encounter when determining the most advantageous filing status for their clients.

Married filing jointly vs. head of household

If there is no legal separation order under state law, are the spouses still considered married for federal tax purposes?

Yes. In the absence of an absolute decree of divorce or decree of separate maintenance recognized under state law, spouses remain legally married for federal income tax purposes as of Dec. 31. However, an otherwise married taxpayer may be treated as unmarried under §7703(b) to claim head of household (HOH) status if they meet the “considered unmarried” rules:

• They file a separate return.
• They lived completely apart from their spouse during the last six months of the tax year.
• They paid more than half the cost of maintaining a home that served as the principal place of abode for their child for more than half the year.
• They are entitled to claim that child as a dependent (or would be entitled except for a Form 8332 release).

If married taxpayers file married filing separately (MFS) and one spouse passes away, can the surviving spouse later file married filing jointly (MFJ)?

Yes, in most cases. Married taxpayers who initially filed separate returns may elect to file an amended joint return under §6013(b), provided the joint return is properly executed under §6013(a).

The rules say the joint return must be signed by the surviving spouse and the decedent’s court-appointed executor or administrator. If no fiduciary has been appointed by the time the joint return is filed, the surviving spouse may execute the joint return alone. However, a joint return cannot be made if the surviving spouse remarries prior to the close of the tax year or if either spouse had a short taxable year under §443(a)(1) due to an accounting period change.

Claiming child tax benefits and Form 8332

If a parent releases the dependency claim using Form 8332, Release/Revocation of Release of Claim to Exemption for Child by Custodial Parent, should the custodial parent still list the child on their return?

Yes, when claiming retained child-related tax benefits. Form 8332 only releases the dependency exemption and the child tax credit or credit for other dependents to the noncustodial parent.

The release does not transfer other tax benefits tied strictly to physical custody. The custodial parent may still claim head of household status, the earned income tax credit (EITC) and the child and dependent care credit, provided they meet the specific rules for those provisions. When claiming these benefits, the custodial parent must report the child’s information on Schedule EIC (Form 1040), Earned Income Credit, or Form 2441, Child and Dependent Care Expenses, even though the child is not claimed as a dependent on page 1 of Form 1040, U.S. Individual Income Tax Return.

Is Form 8332 only used in divorce situations?

No. Form 8332 can be used when parents are divorced, separated, never married or living apart, provided that one parent is treated as the custodial parent for tax purposes. Under §152(e), the special rule for divorced or separated parents applies if the parents:

• Are divorced or legally separated under a decree of divorce or separate maintenance.
• Are separated under a written separation agreement.
• Lived apart at all times during the last six months of the calendar year.

As long as the parents together provide more than half the child’s total support and the child is in the custody of one or both parents for more than half the year, the custodial parent may use Form 8332 to release the child tax credit to the noncustodial parent.

Qualifying surviving spouse rules

Can a surviving spouse file as HOH in the year of the spouse’s death?

No. In the year of death, the surviving spouse is still considered married and cannot file as HOH. They may file MFJ or MFS for that year if otherwise eligible. The statute specifically provides that to be considered HOH, the taxpayer must not be married at the close of the taxable year and must not be a surviving spouse as defined in §2(a)(1).

If a taxpayer’s spouse died in 2024, and the taxpayer did not remarry but has a dependent child living in the home in 2026, what filing status may the taxpayer use for 2026?

The taxpayer may file as a qualifying surviving spouse (QSS) for 2026, provided all requirements are met. This status is available for the two years following the year of death, as long as the taxpayer has a dependent child living in the home all year, pays more than half the cost of keeping up the home and does not remarry.

Claiming other dependents

Can a taxpayer claim their girlfriend or boyfriend as a dependent?

Possibly. They must meet all the qualifying relative rules, including living with the taxpayer for the entire year and meeting the gross income and support tests.

Can a taxpayer claim someone on a student visa (F-1) as a dependent?

Generally, not during the student’s first five calendar years in F-1 status. Under §152(b)(3)(A), a dependent generally must be a U.S. citizen, U.S. national, U.S. resident alien or resident of Canada or Mexico.

Students present in the United States under an F-1 visa are generally classified as “exempt individuals” under the substantial presence test during their first five calendar years, meaning they are generally treated as nonresident aliens for tax purposes. After that period, or if an exception or treaty provision applies, the student’s residency status must be evaluated before determining whether the dependency requirements are met.

Choosing the best filing status

Help your clients navigate complex filing status rules at tax time by asking questions to see if their situation has changed. The right filing status could mean a bigger refund. Because client marital arrangements, child custody schedules and household financial contributions frequently change year over year, filing status should never be automatically rolled forward from a prior-year return. Verifying separation dates, checking support thresholds and documenting custody agreements during intake protects clients from processing delays and prevents statutory disqualification from key family tax credits. Through trusted resources and expert-led education, NATP helps tax pros stay informed and prepared as tax rules change.

For a deeper look at the rules for qualifying children and relatives, explore NATP’s 2026 Identifying Qualifying Dependents and Qualifying Relatives On-Demand Webinar.