I own 2 house properties, 1 is used by my children and wife and the other is empty. Do I have to pay tax for the empty house property also - because I am not receiving any rent on the 2nd property?
Yes, you need to have pay tax on the notional income for the vacant house property. Meaning, on the rent income you would if it were rented, and it will be treated as deemed let out house property.
You can check out the computation of Income on Deemed Let-Out house property article on our learn center.