How do I show rental income and expenses from my son who rents from me at a rate below fair market?

[TomD8 · Accepted solution]

Renting to a family member below fair market rental is considered personal use of the home.  You would report the income as "Other Income" on line 21 of Form 1040.  If you itemize, you may deduct the mortgage interest and property taxes on Schedule A.  In this situation, those are the only expenses you can deduct.  You do not use Schedule E.