Every county tax sale, mapped.

A tax lien certificate is a debt the property owner owes you, and it pays interest until they redeem. A tax deed is the property itself, sold at auction, and winning it can give you ownership. Liens are an income play; deeds are an acquisition play. Some states, like Florida, sell both.

It is set at the state level, not the county level: some states are lien states, some are deed states, some are redeemable-deed states, and hybrids like Florida do both (a county in a hybrid state can run both a certificate sale and a deed sale). Most of the roughly 3,100 US counties fall into one of these buckets. Tax Sale Atlas maps the rules state by state.

Lien buyers earn interest when the owner redeems the certificate, at a rate set by state law and often bid down at auction. Deed buyers acquire property, often well below market, to hold or resell. Both carry real risk, and returns depend heavily on due diligence before you bid.

Each county publishes its delinquent, sale, and over-the-counter lists on its Tax Collector or Clerk of Court site, usually through the auction platform it uses. Every county page on Tax Sale Atlas links to where that county publishes its lists.

A tax lien is secured by the property, which helps, and a tax deed makes you the owner, but neither is risk-free: capital can be tied up for years, a parcel can be worthless, and a tax deed does not come with clean title. Most beginners start with liens to learn the process. Anyone promising guaranteed high returns is a warning sign.