I’m asking on behalf of my parents who want to rent out their home so that they can go and live with my dad’s much younger sister and her partner (they will pay them rent.) They don’t work, both have a state pension. How much income tax would they have to pay on the income from their rented out home? The rental agent estimates they will get £2,500 pcm for rent, which would be minus a 15% fee to fully manage it per annum.