Will filing head of household and claiming my mother as a dependent affect her social security income?

No worries - just don't want to negatively affect her benefits :) - thanks for your help!!

I just found the answer. Yes, they can be considered a dependent if they receive SS, but have less than $3800 taxable income. The first answer I gave you was totally wrong. If your parent lived with you and you provided over half of their expenses, then yes, they can be considered a dependent.

Sorry for the wrong answer.

I'm confused now, too. I had never thought of it like that. You are right that SS for many people is not taxable. We need to get a tax expert in here to explain it.

Thanks for the feedback - I thought the $3800 threshold was for "taxable" income. I don't think SS is taxable...I'm not sure and am very confused :(.

You mention your mother draws social security. Does she make less than $3800 a year? It is the most someone can make and still be claimed as a dependent relative. Most people receiving SS make too much to be claimed.