<p>To be honest, I have never dealt with this. I did allow a domestic partner in the household size recently, because the student supports the partner. I don’t normally allow adults to be included in the household size, but this student actually had the partner listed on her tax form as a dependent. In your case, missemily516, you would not want to include the partner in your household size - you are not including the income (thankfully!), so you would leave her out of your household size.</p>