Yes, you may be able to claim your girlfriend as a dependent on your federal income tax return, but simply being in a relationship is not enough. She must satisfy the IRS rules for a “qualifying relative.” These rules examine where she lived, how much income she received, who paid for her support and whether anyone else is entitled to claim her.
For the 2026 tax year, which is generally reported on a return filed in 2027, her gross income must be below $5,300. For a 2025 return filed in 2026, the limit is below $5,200. These limits may change each year because they are adjusted for inflation.
She Must Live With You for the Entire Year
Because a girlfriend is not one of the relatives automatically covered by the IRS relationship test, she generally must live with you as a member of your household for the entire tax year.
For example, when filing a 2026 return, she would normally need to live with you from January 1 through December 31, 2026. If she moved into your home during March, she would generally fail the full-year household test for that year.
Temporary absences may not cause a problem when she continues to treat your home as her permanent home. Acceptable temporary absences may include education, illness, business travel, vacation or military service. The relationship must also not violate the laws of the state or locality where you live.
Her Income Must Be Below the IRS Limit
Your girlfriend’s gross income must be below the applicable annual limit. For the 2026 tax year, that means less than $5,300.
Gross income generally includes taxable wages, taxable unemployment compensation, interest, business income and other income that is not exempt from federal tax. The test is based on gross income, not the amount remaining after personal expenses.
For example, if your girlfriend earned $6,000 from a part-time job during 2026, you generally could not claim her, even if you paid most of her living expenses. However, certain tax-exempt income may not count toward the gross-income limit. The treatment of Social Security benefits can depend on whether the benefits are taxable.
You Must Provide More Than Half of Her Support
You must pay more than 50% of your girlfriend’s total financial support for the year. Support may include:
- Rent or the fair rental value of the home
- Food and household expenses
- Clothing
- Medical and dental expenses
- Transportation
- Education costs
- Recreation and personal expenses
You should compare the amount you provided with her total support from all sources. Those sources may include her earnings, savings, government benefits and money provided by her parents or other people.
Suppose her total support for the year was $20,000. You would generally need to provide more than $10,000 to pass the support test. Providing exactly half would not be sufficient.
Money she earned does not automatically count as support she provided for herself. It generally counts only to the extent that she actually used it for her living expenses.
She Cannot Be Someone Else’s Qualifying Child
Your girlfriend cannot be your qualifying relative if she is the qualifying child of another taxpayer.
This rule can become important when she is young, attends college and could be claimed by her parents. Even when her parents choose not to claim her, you may still be unable to claim her if she meets the legal tests to be their qualifying child.
She also generally cannot be claimed by two people for the same year.
Citizenship and Joint-Return Rules
Your girlfriend generally must be a U.S. citizen, U.S. national, U.S. resident alien or a resident of Canada or Mexico.
If she is legally married to someone else and files a joint tax return with that person, you normally cannot claim her. A limited exception may apply when the joint return is filed only to receive a refund of taxes withheld and neither spouse would otherwise owe tax.
You also cannot claim her if you could be claimed as a dependent by another taxpayer, subject to a narrow refund-return exception.
What Tax Benefit Can You Receive?
Claiming your girlfriend does not provide the Child Tax Credit because she is not your qualifying child. However, you may qualify for the Credit for Other Dependents, which can be worth up to $500 under current federal rules.
This is a nonrefundable credit. It can reduce the federal income tax you owe, but the unused amount generally will not be paid to you as a refund. Income-based phaseout rules also apply.
You may also be able to include certain medical expenses you paid for her when calculating an itemized medical-expense deduction, provided the applicable requirements are met.
Can Claiming Her Make You Head of Household?
Usually not. Even when your girlfriend qualifies as your dependent because she lived with you all year, she is generally not a qualifying person for head-of-household filing status because she is not related to you in one of the required ways.
Therefore, you would normally still file as single unless another qualifying person, such as an eligible child or parent, allows you to use head-of-household status.
The Bottom Line
You may claim your girlfriend as a dependent when she lived with you for the entire year, earned less than the applicable IRS income limit, received more than half of her support from you and satisfied the citizenship, joint-return and other dependency rules. Keep records of housing costs, food, medical bills, bank transfers and other expenses in case the IRS asks you to prove the claim.
