House Hacking Rent? Do I include my unit?

[Scott Todd]

Hello BP! I'm looking to do my first deal as a House Hack. I would be using my VA loan benefits with a no money down loan. My question is when you are analyzing a House Hack do you include what your rent equivalent is? I'm currently paying $1200 a month for a 1 bedroom apartment. If I find a duplex and rent the other unit for $1200 would I consider that $2400 for the entire property? If my mortgage was only $1800 and received $1200 from my tenant I would be paying $600 instead of $1200. I know there are other costs to consider but I'm just trying to figure out the basic concept. Any help would be great.

Thank you!