If a real estate owner does not pay the required taxes on a property, the county will offer the property up for sale at an auction as a "tax sale" to help generate the lost tax income. There are two types of tax sales - tax lien sales and tax deed sales. In tax lien sales, the county government sells their right to the tax lien on the real estate property, allowing the buyer to bid on the tax debt for a favorable return on investment. In tax deed sales, the county government sells full ownership and possession rights of the property to the investor. Both result in a flexible and secure investment with minimal market risk.