Can someone explain what income a self-employed person would use for a subsidy determination? Isn't it supposed to be MAGI? but what everyone is asking me is why isn't the subsidy based on the business owner's NET income which allows them to deduct their business expenses, which is a more accurate indication of what their true earnings are. I'm not an accountant so I'm not comfortable trying to explain this to clients, but more and more I am being put in a position to have to address this kind of stuff.