I have a home and have an individual paying for some costs to stay with me part-time. Are the monies I received taxable

[TurboTaxSusan]

If you are charging your friend what you would charge a stranger (fair market value), then it would be income. 

If you are just getting enough to cover costs and not enough to make a profit, then you don't have to claim it as income. But you also can't claim expenses either.