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Can I claim my sister on my taxes?

Boston, MA |

She's 22 and she lives in my apartment with complete support from me. How would I prove she lives with me and that she's my sister with a different last name?

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Attorney answers 4


These are best answered by your tax retrurn preparer. You will need to have a conversation with your sister as well to make sure both are on the same page.

Eric P. Rothenberg, P.C.
160 Gould Street-Suite 320
Needham, MA 02494-2300
Tel: 781-239-8900
Fax: 781-658-2203

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You may qualify for the support test. You should talk to a CPA further to determine.

Feel free to reach out to me if you have any questions!

Andrew B. Gordon, CPA, Esq.
One First Bank Plaza, #207 | Lake Zurich, IL 60047
Main: 847.580.1279 | Fax: 847.305.1297

Andrew B Gordon is a CPA and attorney licensed to practice law in Illinois. The information provided here is for educational purposes only and is not intended as legal advice for a particular matter. This response does not create any attorney-client relationship with the author. For specific advice about your particular situation, please consult an attorney.


There are circumstances when this kind of living arrangement would qualify her as your dependent. However, there are questions that need to be answered before you can get a definitive answer. Talk to your tax preparer or CPA.

I hope this helps.
Steven A. Leahy

Please note that the above is not intended as legal advice, it is for educational purposes only. No attorney-client relationship is created or is intended to be created hereby. You should contact a local attorney to discuss and to obtain legal advice.


Is she a full-time college student? If so, she could be a qualifying child to you. If not, she would need to make less than roughly 4k per year, and you could claim her as a qualifying relative. This basically means you only get the exemption, and not Head of Household or the EIC.

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