Ownership transfers to you once the sale is finalized, though some states still allow a short redemption period for the previous owner. How the Buying Process Works 19 Risks of Buying Tax Liens

: You purchase the property itself at a foreclosure auction.

Buying tax liens and deeds involves acquiring claims against properties with delinquent taxes through local government auctions.

You do own the property immediately; you own the right to collect the debt plus interest.

: You purchase a "tax lien certificate," which is a claim on the property's tax debt.