Head of household tests before filing: 3 rules

• Check marital status first. The client must be unmarried or considered unmarried on the last day of the year to qualify for this status, according to Internal Revenue Service.
• Verify home costs. The client must have paid more than half the cost of keeping up a home for the year, according to Internal Revenue Service.
• Confirm the qualifying person. A qualifying person must have lived with the client in the home for more than half the year, except for temporary absences such as school, according to Internal Revenue Service.
• Note the parent exception. If the qualifying person is a dependent parent, that parent does not have to live with the client, according to Internal Revenue Service.
• Align state status. Generally, you should file the state tax return using the same status as the federal return, according to California Franchise Tax Board.

This keeps the decision grounded in the stated requirements rather than general assumptions about the client's situation. If the client is married, you must verify whether they are considered unmarried on the last day of the year before proceeding. If the client shares housing costs, you must confirm they paid more than half the cost of keeping up the home. If the qualifying person is a child, you must confirm the child lived in the home for more than half the year, noting any temporary absences such as school.

Do not assume that head of household status always lowers the tax. The IRS publication lists these requirements as conditions for eligibility, not as guarantees of a specific tax outcome. Your role is to verify that the client meets the stated criteria. If any test is not met, the client cannot use this filing status under the rules stated in the publication.

Publication 501 (2025), Dependents, Standard Deduction, and Filing Information from the Internal Revenue Service outlines three specific requirements that must be met to claim head of household status. The first requirement concerns marital status. You are unmarried or considered unmarried on the last day of the year, according to Internal Revenue Service. This condition sets the baseline for who can even consider this filing status. If the client is married and living with a spouse on December 31, this first test fails. The publication does not provide an exception for separated spouses in this specific sentence, so the preparer must verify the client's marital status as of the final day of the tax year.

The second requirement focuses on financial contribution to the household. You paid more than half the cost of keeping up a home for the year, according to Internal Revenue Service. This test requires the taxpayer to have borne the majority of the expenses associated with maintaining the home. The preparer should review the client’s bank statements or lease agreements to confirm that the client’s share of these expenses was more than half. Pair that review with a Client bank reconciliation with 4 balance checks. If a roommate or other adult child contributed significantly to the costs, the client may not meet this threshold.

The third requirement involves the presence of a qualifying person. A qualifying person lived with you in the home for more than half the year (except for temporary absences, such as school), according to Internal Revenue Service. The qualifying person can be a child or a parent. The preparer must document the dates the qualifying person resided in the home to verify the "more than half the year" condition. If the qualifying person moved out permanently before the midpoint of the year, this test fails.

When the qualifying person is your dependent parent, the residence requirement changes. According to Internal Revenue Service, your dependent parent doesn’t have to live with you. This exception applies specifically when the qualifying person is your dependent parent. You do not need to prove that a dependent parent shared your home for the majority of the year to satisfy this part of the test. If the person is not your parent, the general rule that a qualifying person lived in the home for more than half the year remains in effect.

The second part of this section addresses the separation requirement for married clients. According to Internal Revenue Service, your spouse didn’t live in your home during the last 6 months of the tax year. This is a strict timeline requirement. If the client’s spouse lived in the home for any part of the final six months, the client does not meet this specific condition. The IRS publication states that you can’t claim head of household filing status because you and your spouse didn’t live apart for the last 6 months of the year. The separation must be continuous for the entire six-month period leading up to the end of the tax year.

For your client file, verify the exact dates the spouse left the home. If the spouse moved out in September, the client may not meet the six-month requirement if the tax year ends in December. You must confirm that the spouse did not live in the home during the last 6 months of the tax year. You must still verify the marital status as of the last day of the year. The IRS publication emphasizes that the spouse didn’t live in your home during the last 6 months of the tax year. This is a factual determination based on where the spouse resided.

In this illustrative case, one unmarried client in 2025 paid 6 toward a home cost of 10, which is more than half. A qualifying child lived in the home for more than half the year, apart from school. All three tests are met, so the client may be able to file as head of household. If the qualifying person is a dependent parent, that parent does not have to live with the client. If a married client's spouse lived in the home during the last 6 months of the tax year, the client cannot claim this status because the spouse did not live apart for those 6 months.

Each row names the publisher and quotes the exact rule or definition provided on their page. Use this table to verify that your client’s state filing status aligns with the federal status before you sign the return.

The California Franchise Tax Board identifies "Head of household (with qualifying person)" as a filing status option, according to California Franchise Tax Board. The FTB states that your filing status determines the rate your income is taxed, according to California Franchise Tax Board. The FTB advises that generally, you should file your state tax return using the same status as your federal return, according to California Franchise Tax Board.

The New York State Department of Taxation and Finance states that in nearly all cases, you must use the same filing status that you used on your federal return, according to New York State Department of Taxation and Finance. If you did not have to file a federal return, New York requires you to use the same filing status that you would have used if you had filed, according to New York State Department of Taxation and Finance.

When you review a client’s file, compare the federal status against these state rules. If the client qualifies for head of household federally, check whether the state page supports that same status. If the client did not have to file a federal return, apply the New York rule for determining the status you would have used. This comparison ensures the state return matches the federal position where required.

Apply these three tests before you check the filing-status box on the return. Write the client's specific facts next to each test and mark each one yes or no. The IRS states that after 2025, you can file as head of household if you qualify, as noted in Publication 501 (2025), Dependents, Standard Deduction, and Filing Information | Internal Revenue Service. This note belongs in the client's file for the current tax year. This simple check helps you confirm whether the status is appropriate for this specific return. Keep the note with the other intake documents, beside the Accounting Client Intake Checklist for a Clear Handoff, so the preparer can review it before signing. Use the Preparer duties before signing a return: 4 checks on that same pass.

What are the three head of household tests?

The Internal Revenue Service lists three specific requirements for this status in Publication 501 (2025), Dependents, Standard Deduction, and Filing Information | Internal Revenue Service. First, you must be unmarried or considered unmarried on the last day of the year, according to Internal Revenue Service. Second, you must have paid more than half the cost of keeping up a home for the year, according to Internal Revenue Service. Third, a qualifying person must have lived with you in the home for more than half the year, except for temporary absences such as school, according to Internal Revenue Service.

Does a dependent parent have to live in the home?

No, the IRS publication explicitly states that if the qualifying person is your dependent parent, your dependent parent doesn’t have to live with you, according to Internal Revenue Service. This exception applies specifically when the qualifying person meets the definition of a dependent parent under the publication’s rules. You should verify the parent’s dependency status separately from their physical residence. The other two tests regarding marital status and home costs still apply to the taxpayer.

What does the 6-month rule say?

The rule states that your spouse didn’t live in your home during the last 6 months of the tax year, according to Internal Revenue Service. If a spouse lived in the home during this final six-month period, the taxpayer generally cannot claim this status. Check the client’s housing history for the last six months of the tax year to confirm compliance.

Does California use the same filing status as the federal return?

The California Franchise Tax Board states that generally, you should file your state tax return using the same status as your federal return, according to California Franchise Tax Board. This guidance appears on their Filing status page. It aligns the state filing status with the federal determination.

What does New York say if no federal return was filed?

The New York State Department of Taxation and Finance states that if you did not have to file a federal return, use the same filing status that you would have used if you had filed, according to New York State Department of Taxation and Finance. This instruction is found on their Filing status page. The department also notes that in nearly all cases, you must use the same filing status that you used on your federal return, according to New York State Department of Taxation and Finance. Apply the hypothetical federal status if the client was exempt from filing federally.