What are you talking about? "Taxes don't have anything to do with ownership"
Your county sends the person on the deed to the house a tax bill every year. For me, it works out to over $300 per month for a very modest house. If you have a mortgage, it's bundled into the mortgage payments.
You can't just pay off your house and expect to be left alone. The county sends the person on the deed a tax bill every year. If you don't pay, they will take the house from you.