Can I claim a dependent if she earned interest from corporate bonds totaling $11,000? She lived with me all year and I supported her 100%, but doesn't have a disability.

How old was she on 12/31/2018?  Was she a full time student in 2018?

Is she related to you? If so, what is the relationship?

If she is not related to you, you cannot claim her as a dependent, because of her income.

She is my younger sister

She is 57 and I'm 60

We still need to know:
How old was she on 12/31/2018?  Was she a full time student in 2018?

Her income is too high for you to claim her. Sorry.