You can claim your girlfriend as a dependent, but only if she meets every part of the IRS “qualifying relative” test: she lived with you the entire year, earned less than the annual gross income limit, relied on you for more than half her support, isn’t someone else’s qualifying child, and isn’t filing a joint return with a spouse. Clear all five, and you get a $500 nonrefundable Credit for Other Dependents. That’s the whole benefit.
The Five Tests She Has to Pass
A girlfriend can’t be a qualifying child, so she has to come in through the qualifying relative door. That path has five separate tests, and passing four of them isn’t enough.1Internal Revenue Service. Dependents
She Lived With You the Entire Year
Because she isn’t related to you by blood, marriage, or adoption, she qualifies only as a member of your household. The statute requires that she share your principal place of abode and be a member of your household for the full tax year.2Office of the Law Revision Counsel. 26 USC 152 – Dependent Defined The full tax year means January 1 through December 31. If she moved in on February 1, that year is out.
Temporary absences don’t break the residency requirement. Time away for illness, education, work travel, vacation, or military service counts as time in the household, as long as she reasonably expects to return. Even an extended nursing home stay for medical care can qualify as a temporary absence if the shared home remains her principal residence.3Internal Revenue Service. Publication 501 – Dependents, Standard Deduction, and Filing Information
Her Gross Income Was Under the Annual Limit
Her gross income for the year has to fall below the IRS threshold. For 2025, that limit was $5,050.1Internal Revenue Service. Dependents The number is adjusted for inflation each year, so verify the current amount in IRS Publication 501 before you file. Gross income covers wages, freelance earnings, investment income, and any other taxable income. Tax-exempt income, like certain scholarships, doesn’t count against the limit.
This is where most claims collapse. The threshold is low enough that even part-time work often puts someone over.
You Covered More Than Half Her Support
You have to pay more than 50% of her total living expenses for the year.1Internal Revenue Service. Dependents Support includes housing, food, clothing, medical and dental care, transportation, and recreation. The IRS looks at total support from every source, including her own savings and any help from family, and measures your share against that total.
An example: if her total support for the year is $20,000 and you pay $11,000, you’re over the line. But if she pulls $5,000 from savings and her parents send $5,000, your $10,000 no longer clears half of $20,000, and the test fails.
She Isn’t Someone Else’s Qualifying Child
If her parents or another taxpayer could claim her as a qualifying child for the same year, she can’t be your qualifying relative.1Internal Revenue Service. Dependents This tends to come up with younger girlfriends who are still their parents’ dependents.
She Isn’t Filing a Joint Return
If she’s married and files jointly with a spouse, you can’t claim her. The one narrow exception: a joint return filed only to claim a refund of withheld taxes or estimated payments doesn’t disqualify her.1Internal Revenue Service. Dependents
The Local Law Catch
When someone qualifies as a household member rather than through a family relationship, the IRS adds one more condition: the living arrangement can’t violate local law.4Internal Revenue Service. Dependents – IRS VITA Training If unmarried cohabitation is illegal where you live, the household-member test automatically fails.
Almost every state has repealed its cohabitation laws, and the few statutes still on the books are rarely enforced. But the IRS applies the rule as written. If your state still criminalizes cohabitation, claiming her carries risk.
Citizenship and Residency
Every dependent must be a U.S. citizen, U.S. resident alien, U.S. national, or a resident of Canada or Mexico.1Internal Revenue Service. Dependents A girlfriend on a tourist visa or without documentation won’t meet this requirement no matter how well she does on the other tests.
What You Actually Get, and What You Don’t
Expectations often outrun reality here. The tax benefit for claiming a girlfriend is narrower than most people assume.
A $500 Credit for Other Dependents
The benefit is the Credit for Other Dependents, worth up to $500. It’s nonrefundable, which means it can zero out your tax bill but won’t generate a refund on its own. The credit begins phasing out at $200,000 of modified adjusted gross income, or $400,000 for married couples filing jointly.5Internal Revenue Service. Understanding the Credit for Other Dependents
No Personal Exemption
The personal exemption deduction that used to come with each dependent was eliminated by the Tax Cuts and Jobs Act, and the One Big Beautiful Bill Act made that elimination permanent.6Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026 Claiming her produces no exemption-based savings.
No Head of Household Status
Claiming her as a dependent does not let you file as Head of Household. The qualifying-person rules for that filing status specifically exclude someone who is your dependent only because she lived with you all year as a household member.3Internal Revenue Service. Publication 501 – Dependents, Standard Deduction, and Filing Information
No Child Tax Credit or Earned Income Credit
Both the Child Tax Credit and the Earned Income Tax Credit require a qualifying child. A girlfriend claimed as a qualifying relative doesn’t unlock either. Some state returns offer their own dependent credits, with rules and amounts that vary by state.
Identification Number
You’ll need a taxpayer identification number for her on your return. A Social Security number is the standard. If she doesn’t have one, an Individual Taxpayer Identification Number works for the Credit for Other Dependents. ITIN applications on Form W-7 can take up to 11 weeks to process, so start early.7Taxpayer Advocate Service. Valuable Information About Child and Dependent-Related Tax Benefits Missing the ID requirement means the IRS denies the credit outright.
Records to Keep
Returns that claim a non-relative as a dependent draw more scrutiny than average. Keep documentation that shows she lived with you the full year and that you paid more than half her support. Useful records include a shared lease or mortgage, utility bills in both names, bank and credit card statements showing household expenses, and receipts for major costs like medical bills and insurance premiums.
For the support test, a simple spreadsheet of her expenses by category, marking which ones you paid, will do the job. The Worksheet for Determining Support in Publication 501 walks through the calculation. Building it before you file is much easier than reconstructing it during an audit two years later.