Single vs. head of household: which filing status should you use?

If you are unmarried and pay more than half the cost of a home for a qualifying person who lives with you, you can usually file as head of household, which taxes you less than filing as single. If you don't meet those tests, single is your status, and claiming head of household anyway is an error the IRS can undo.

What head of household gives you

Two things: a larger standard deduction and wider low-tax brackets. For 2026, the standard deduction is $16,100 for single filers and $24,150 for head of household. The 12% bracket runs up to $50,400 of taxable income for single filers and up to $67,450 for head of household. (These are the figures our take-home pay calculator uses.)

The three tests

The IRS lays these out in Publication 501. You need all three:

1. Unmarried, or "considered unmarried," on the last day of the year. If you are still legally married, you may count as unmarried only if your spouse did not live in your home during the last six months of the year and you meet the other rules.
2. You paid more than half the cost of keeping up your home for the year. Rent or mortgage, utilities, groceries eaten at home, repairs, property taxes, and home insurance count. Clothing, education, medical care, and vacations do not.
3. A qualifying person lived with you for more than half the year. This is most often your child. Temporary absences such as school, illness, or military service still count as living with you. A dependent parent is a special case: they don't have to live with you if you pay more than half the cost of their home.

The qualifying person must also meet the IRS relationship and dependency rules, so check the full tests in Publication 501 before you file. The IRS also has a filing status tool that asks the questions for you.

A worked example

Take a $60,000 salary in Texas (no state income tax), with no pre-tax deductions. Using our 2026 estimates:

• Single: taxable income is $60,000 minus $16,100, or $43,900. Federal income tax is about $5,020.
• Head of household: taxable income is $60,000 minus $24,150, or $35,850. Federal income tax is about $3,948.

That is about $1,072 less federal tax a year, or roughly $89 a month, from the filing status alone. Social Security and Medicare tax don't change with filing status. If the qualifying person is also a child who qualifies for the child tax credit, the credit is the same under both statuses, so the $1,072 gap holds. These are our own estimates with the assumptions above, not a tax return.

Common mix-ups

• A roommate or partner doesn't count. Living with someone you aren't related to in the required way does not create a qualifying person.
• Splitting custody. Generally only one parent can treat a child as a qualifying person for head of household, and the child must live with that parent for more than half the year. Agreements about who claims the child's tax credit don't automatically change this.
• Paying half the bills matters. If someone else covers most of the rent and groceries, you may not pass the home test.

Update your paycheck, too

Your filing status also goes on your Form W-4, which controls how much federal tax comes out of each paycheck. If you now qualify as head of household but still withhold as single, you may be overpaying all year. Our lesson on your W-4 and big refunds shows how to adjust it.

Bottom line

If you pass all three tests, head of household is the better status and worth claiming. If you don't, file as single. When your situation is unusual (separated, shared custody, supporting a parent), read Publication 501 or ask a tax preparer.

General information, not tax, legal, or financial advice.

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