Land · Arizona tax sale guide

Arizona tax lien sales by county

Verified

Arizona does not sell the property at its annual sale. Every February, each county treasurer auctions the delinquent tax lien itself: buyers pay the taxes, penalties, interest and fees owed, bid the interest rate down from the 16 percent statutory maximum, and leave with a certificate of purchase. The owner can redeem at any time before a court judgment, paying the certificate amount plus interest at the bid rate, and only an unredeemed lien can become a treasurer's deed, through a foreclosure action that cannot start until 3 years after the sale.

This page set covers all 15 Arizona counties; Arizona is the first state in the Pine set built whole rather than in a top 10. Each county page carries who sells, the sale date, the platform, the registration deadline, the deposit, the list, and what happens to liens nobody buys, verified against the treasurer's own sources. Two facts decide most bids. First, the rate is bid down in the room, so competition compresses the return before any property question is reached. Second, redemption is the normal exit: the deed path is a court case at the end of a 3 year wait, and it prices accordingly.

Verify before you go: counties can move a date, change terms, cancel a sale, or pull parcels at any time. The official sale list is the final word.

The 15 counties

Each row links to that county's own page: selling office, venue or platform, deposit, payment terms, leftover channel, and sources. Where a county has not posted a dated sale, the row says so instead of projecting a pattern onto it.

How Arizona tax lien sales work

• Unpaid taxes become a lien, and the lien is what sells. Property taxes in Arizona are a lien on the property, and when they stay unpaid the county treasurer prepares the delinquent list (by December 31 under ARS 42-18106), advertises it, and sells the tax lien at the annual sale under Title 42, Chapter 18. What the buyer receives is a certificate of purchase: a lien position against the property, not the property, not a deed, and no right to enter or use it.
• The sale runs every February, mostly online. The treasurer of each county holds the annual sale in February. Most Arizona counties now sell through an online vendor the treasurer names on its tax lien sale page; registration and a funded account come before bidding, and each county sets its own registration deadline and deposit rule on top of the statute.
• Bidding is the interest rate, and it goes down. Buyers bid the annual interest rate the lien will earn, starting at the 16 percent per annum maximum in ARS 42-18053 and bidding down under ARS 42-18114; the lowest rate wins. The winner pays the treasurer the full amount of delinquent taxes, interest, penalties and fees for the parcel on the day of sale. Competition, not the county, sets the rate a lien actually carries.
• Redemption is the normal exit, and it runs through the treasurer. The owner, or another party in interest, may redeem at any time before a court enters judgment foreclosing the lien, by paying the treasurer the certificate amount plus interest at the bid rate, plus any subsequent taxes the holder paid and the statutory fees. The treasurer then pays the holder. Most certificates are redeemed; the interest, not the property, is the usual return.
• The deed is a court case that cannot start for 3 years. If the lien is still unredeemed 3 years after the sale, the certificate holder may bring a foreclosure action in superior court under ARS 42-18201. Only a final judgment in that action bars the owner's right to redeem and directs the treasurer to issue a treasurer's deed. Liens nobody buys at the sale are struck off to the state, and the state held liens can later be bought by assignment from the treasurer.

One Arizona fact decides most bids: you are buying an interest rate and a clock, not a property. The certificate pays the bid rate when the owner redeems, and it becomes a deed only through a court foreclosure that cannot start for 3 years and that the owner can stop by redeeming at any point before judgment.

Research the parcels before you bid

A sale list gives you the parcel, the date, and the opening terms. It does not give you the owner, the value, or the rest of the picture: liens, foreclosure status, and parcel history. PropertyRadar is the data platform for that layer. It carries owner records, assessed and market values, foreclosure and tax data, and property history for parcels across the country, searchable by address, owner, or county, including parcels that never reach a sale list.

Open a PropertyRadar accountSee plans and pricing

Pine and Brass is a PropertyRadar partner. If you open an account through these links, we may earn a commission; it does not change the price you pay.

Get the alert, not just the calendar.

The dates on these pages are the free layer. The Pine membership is the paid layer, proven in New York: members pick their counties, get alerts when a sale is scheduled or a list posts, and receive the full property list with the analysis already done. Arizona counties open from the interest list first, in the order readers join it.

Keep going

Once a deadline puts you in a sale, the Land Investor Due Diligence Toolkit is the checklist and bid worksheet to run on each parcel before you bid.