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Filing Status &
Dependency

Learn how to determine the correct filing status for individual taxpayers and identify who qualifies as a dependent under IRS rules.

CPA Regulation (REG)

Why Filing Status Matters

Your filing status is the foundation of your entire tax return. It determines your tax bracket thresholds, standard deduction amount, and eligibility for many credits and deductions.

The Five Filing Statuses

1. Single
Unmarried, divorced, or legally separated on Dec 31
2. MFJ
Married Filing Jointly: both spouses report combined income
3. MFS
Married Filing Separately: each spouse files own return
4. HOH
Head of Household: unmarried, pays >50% of home costs, qualifying person
5. QSS
Qualifying Surviving Spouse: within 2 years of spouse's death, dependent child

Decision Flowchart

Married on Dec 31? YES File jointly? (Both agree) YES MFJ NO MFS NO Spouse died in prior 1-2 yrs + dep child? YES QSS NO Pay >50% home costs + qualifying person? YES HOH NO Single

Two Types of Dependents

The IRS recognizes two categories of dependents: Qualifying Child (QC) and Qualifying Relative (QR). Each has its own set of tests that all must be met.

Qualifying Child
Must pass: Relationship, Age, Residency, Support, and Joint Return tests
Qualifying Relative
Must pass: Not a QC, Member/Relationship, Gross Income, and Support tests

Qualifying Child Tests

1
Relationship: Child, stepchild, foster child, sibling, or descendant of any of these
2
Age: Under 19, or under 24 if a full-time student, or permanently disabled at any age
3
Residency: Must live with taxpayer for more than half the year (temporary absences count)
4
Support: The child must not have provided more than half of their own support
5
Joint Return: The child cannot file a joint return (except solely to claim a refund)

Qualifying Relative Tests

1
Not a Qualifying Child: The person cannot be anyone's qualifying child
2
Member of Household or Relationship: Must be a relative listed in IRC §152(d)(2) or live with the taxpayer the entire year
3
Gross Income: Must have gross income less than the exemption amount (\( \$4{,}700 \) for 2023, adjusted annually)
4
Support: The taxpayer must provide more than half of the person's total support

QC vs QR: Key Differences

Test Qualifying Child Qualifying Relative
Age < 19 (or < 24 student) No age limit
Residency > half the year All year (or listed relative)
Gross Income Not required < exemption amount
Support Child did not provide > 50% Taxpayer provided > 50%
Relationship Child, sibling, descendant Broader: includes parents, in-laws, unrelated if living together

Head of Household Requirements

1
Unmarried (or considered unmarried) on December 31
2
Paid more than half the cost of maintaining a home for the year
3
A qualifying person lived with you for more than half the year (exception: dependent parent need not live with you)

Step-by-Step Approach

1
Determine marital status on December 31: married, single, divorced, legally separated, or widowed?
2
Check for QSS: Did spouse die within prior 2 years? Is there a dependent child?
3
Test each potential dependent: Run the QC tests first; if they fail, try QR tests
4
Evaluate HOH: If unmarried with a dependent, check the >50% household cost requirement
5
Select optimal status: If multiple statuses apply, choose the one with the lowest tax (generally MFJ > QSS > HOH > Single > MFS)

Example 1: Single Parent

✓
Son is a Qualifying Child: Related (child), age 12 (< 19), lives with Maria all year, does not provide own support
✓
HOH eligible: Unmarried, pays >50% of home costs, qualifying person (son) lived with her > half the year

Example 2: Elderly Parent

1
Not a QC: Mother fails the relationship test for QC (not David's child), so test as QR
2
Relationship: Mother is a listed relative under §152(d)(2): ✓ Pass
3
Gross Income: \( \$3{,}500 \) < \( \$4{,}700 \) exemption amount: ✓ Pass
4
Support: David provides \( \$24{,}000 / \$30{,}000 = 80\% \): ✓ Pass

Example 3: Tricky Scenario

1
Year of death (2022): Sarah could file MFJ for that year
2
2023: Within 2 years of spouse's death, has a dependent child: qualifies as Qualifying Surviving Spouse (QSS)
3
2024: Still within 2 years, still has dependent child: QSS again
4
2025: Now 3 years after death: QSS no longer available. Sarah files as HOH (if requirements met)

The Support Test in Detail

Support includes amounts spent for food, shelter, clothing, medical care, education, and recreation. It does not include scholarships received by a student.

Qualifying Child
The child must not have provided more than half of their own support. The taxpayer does not need to provide the majority: a grandparent or government could.
Qualifying Relative
The taxpayer must provide more than half of the person's total support. This is a stricter standard.

Common Mistakes

✕ Wrong Date
Using the date you filed instead of December 31 to determine marital status. A couple married on Dec 30 is married for the whole year.
✕ QC Age Confusion
Forgetting that a full-time student can be a QC up to age 24, not just 19. The student must be under 24 at year-end.
✕ Support Mix-Up
Confusing QC and QR support tests. For QC: child did not self-support >50%. For QR: taxpayer did provide >50%.
✕ HOH + MFS
Thinking married taxpayers cannot file as HOH. A "considered unmarried" spouse can file HOH if they meet specific tests (lived apart last 6 months, etc.).
✕ Scholarship Trap
Including scholarships as support. Scholarships are excluded from both the support provided and total support calculations for a QC.

Summary Comparison

Status Requirements Standard Deduction (2023)
Single Unmarried, no dependents or does not meet HOH \( \$13{,}850 \)
MFJ Married, both spouses agree to file together \( \$27{,}700 \)
MFS Married, spouses file separately \( \$13{,}850 \)
HOH Unmarried, >50% home costs, qualifying person \( \$20{,}800 \)
QSS Spouse died within 2 years, dependent child \( \$27{,}700 \)

Question 1 of 5

Tom and Lisa got married on December 28, 2023. They had been single all year. What is their marital status for federal tax purposes for 2023?

Question 2 of 5

Amy is unmarried and supports her 22-year-old son who is a full-time college student living at home. The son earned \( \$6{,}000 \) from a part-time job but did not provide more than half of his own support. Can Amy claim him as a Qualifying Child?

Question 3 of 5

Kevin's wife died in 2022. In 2024, Kevin has not remarried, maintains a home for his 10-year-old dependent daughter, and pays all household costs. What is Kevin's filing status for 2024?

Question 4 of 5

Rachel is single and pays 100% of the household expenses for her apartment where her 25-year-old brother (not a student, not disabled) lives with her all year. Her brother earned \( \$3{,}200 \) and Rachel provided all other support. Can Rachel claim her brother as a dependent?

Question 5 of 5

Which of the following is excluded from the support calculation when determining if a child is a Qualifying Child?