Can i claim my dependent that lived with me for 6 months then another relative at a different address?

If she stayed with you for more days than she stayed with your mother, you may be able to claim her as a dependent if your mother doesn't claim her and your sister meets additional requirements. 

• When you add your sister as a dependent on your income tax return, TurboTax will ask you a series of questions to make sure you can claim her a dependent.

Here are the requirements to claim your sister as a dependent:

• They aren't claimed as a dependent by someone else.
• They're a U.S. citizen, resident alien, national, or a Canadian or Mexican resident.
• They aren’t filing a joint return with their spouse.
• They lived with you the entire year.
• They made less than $4,300 in 2020.
• You provided more than half of their financial support.

Related Information:

• Does a dependent for 2020 have to live with me?
• What does "financially support another person" mean?
• Can I claim myself or my spouse as a dependent?
• Can I claim my parent as a dependent in 2020?
• Can I claim a newborn baby?