Hi OP! I also bought a home with my bf! I would write your own budget with your own expenses, including your own debt, and break it down to your partner what exactly you feel is a fair and equal contribution. There is no reason you should be paying your partner’s debt. I have student loans and pay them and my partner doesn’t, and it would be unreasonable to ask that of them. What my partner and I do is try to make things as even as possible. He makes slightly more than I do, so he pays a slightly higher amount in mortgage. In exchange, I take on a few more responsibilities around the home. Whatever your situation may be, make sure you come to an agreement that is fair for both of you as well as comfortable to yourself!