All Income Sources Used to Determine Disposable Income?

[BKUniverse]

I'm currently in a Chapter 7 and it looks like I will be converted to a 13 in order to save some real estate that isn't mind, but is in my name along with my father. As with a Chapter 7, I had to disclose all sources of income in the household (my parents and myself) and I am wondering when a Repayment Plan is figured for a Chapter 13, are all sources of income as well as all household expenses used to determined disposable income?

[woeisme]

Your income and expenses are used. The others income is only important as to how they contribute to your household expenses.