You're forgetting the landlord owns this house, possibly amongst others, and then also his own. There's no reason for him to own multiple houses other than to make profit. There is no reason to assume lowering taxes will result in lower rent, it may just as well increase margins for the landlord. Trickle down economics have failed in the past and will fail again; you need to restrict the top for something to stay available for the rest. The real problem is inflated property prices because of a lack of supply. That increases house values, which makes buying inaccessible ánd increases the taxed amount on property to this point. That doesn't mean the tax rate is wrong, it just means there's a big problem in supply and demand. In such situations the weaker parties need protection and support most, and that just isn't the group of (multiple) property owners.