The governing law
Arizona is a tax-lien state. Each February the county treasurer sells tax liens on delinquent parcels, and the investor who accepts the lowest rate of interest wins the lien and receives a certificate of purchase. The lien earns up to 16 percent per year until the owner redeems. If the lien goes unredeemed for three years, the certificate holder can file a judicial foreclosure in Superior Court to obtain a treasurer's deed. The process is governed by Title 42, Chapter 18 of the Arizona Revised Statutes.
A.R.S. Title 42, Chapter 18
Read the statuteTax Liens and Tax Lien Sales
A.R.S. 42-18053
Read the statuteInterest on delinquent taxes
A.R.S. 42-18112
Read the statuteDate of sale
A.R.S. 42-18114
Read the statutePayment by purchaser; lowest rate of interest
A.R.S. 42-18127
Read the statuteExpiration of lien and certificate of purchase
A.R.S. 42-18152
Read the statuteWhen right to redeem may be foreclosed
A.R.S. 42-18201
Read the statuteAction to foreclose right to redeem
Want the mechanics in plain English instead of statute numbers? See how to buy in Arizona, the redemption period, and the full Arizona walkthrough.
Statute citations verified Jul 13, 2026. Statutes are amended; always confirm the current text at the official link before you rely on it.
Tax Sale Atlas publishes educational information about public tax sale processes. This is not legal, financial, or investment advice. Rules, dates, and fees change; confirm with the county office before you bid.