Pinal County tax sales, Arizona

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Pinal County sells online through RealAuction and runs the mechanics through the vendor end to end: registration, the initial deposit by wire or ACH one day before the sale, and checkout payment within 24 hours of the close, all on the auction site, with no deposits accepted at the Treasurer's office. The county's 2024 Tax Lien Sale Booklet sets the deposit at $500 or 10 percent of the anticipated bid, whichever is greater; whether that figure carries to the 2027 sale was not confirmed on the pages read. After the auction, county held certificates that did not sell are offered online from about the first week of March through the end of December.

Selling office: Pinal County Treasurer

Next sale: February 2027 annual online tax lien sale; no dated 2027 sale was published on the Treasurer's pages read. The Treasurer states the sale is held each year in February, the auction site closes in January in preparation, and it reopens about two weeks before the sale for parcel viewing, new bidder registration and bidding. The 2026 sale was completed February 12, 2026.

Pinal sits between Phoenix and Tucson, and its sale is fully vendor run, so the auction site, not the courthouse, is where the 2027 calendar will appear first.

Dates and deadlines

Next sale	February 2027 annual online tax lien sale; no dated 2027 sale was published on the Treasurer's pages read
The sale	Online each year in February at pinal.arizonataxsale.com, open to the public. The 2026 sale was completed February 12, 2026. No dated 2027 sale was published as of November 9, 2026.
The list	The list of properties with prior year delinquent taxes is published in the newspaper of general circulation for Pinal County, and delinquent parcel information is available online through links on the Treasurer's tax lien sale page, under ARS 42-18106 and 42-18109.
Registration and deposit	Bidders must register and submit the initial deposit by wire or ACH through the RealAuction site one day prior to the sale; no deposits are accepted at the Treasurer's office. The county's 2024 booklet sets the deposit at $500 or 10 percent of the anticipated bid, whichever is greater.
Bidding and the certificate	Interest is bid down from 16 percent to as low as 0 percent, and the lien is awarded to the bidder who offers the lowest rate, under ARS 42-18114. The buyer receives a certificate of purchase, a lien on the property, not the property itself.
Redemption	The owner or another person with a legal or equitable claim may redeem at any time before delivery of a treasurer's deed, paying the sale amount with interest at the certificate rate, plus subsequent taxes the holder paid at the same rate, plus statutory fees, under ARS 42-18151 to 42-18153. Foreclosure may begin three years after the sale under ARS 42-18201.
County held certificates	Certificates not sold at the auction are available for purchase online from about the first week of March through the end of December, per the Treasurer's sale page.
Format	Online only: RealAuction, at pinal.arizonataxsale.com
Selling office	Pinal County Treasurer

Sources: Pinal County Treasurer, Tax Lien Sale. Pinal County Treasurer, 2024 Tax Lien Sale Booklet. Pinal County Treasurer, FAQ. Pinal County tax lien sale, RealAuction. Confirm with the selling office before relying on any date on this page: sales move, terms change, and parcels are pulled up to sale day.

Research Pinal County parcels before you bid

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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.

How bidding works in Pinal County

Register on the RealAuction site at pinal.arizonataxsale.com. The site opens about two weeks before the sale for parcel viewing, new bidder registration and bidding, after closing in January while the county prepares the sale.

The rate is the price. A lien bid at 16 percent and redeemed in year two is a different asset from the same lien bid at 4 percent and redeemed in month three. Arizona returns are set in the bid room, before any property question is reached, so model the rate and the likely redemption window first.
The certificate is not the property. No possession, no rents, no right to enter, and no deed for at least 3 years, and then only through a court foreclosure. Buyers who need the property itself should be reading the deed state pages, not this one.

Terms: what a bid actually costs

Deposit, Pinal County	$500 or 10 percent of the anticipated bid, whichever is greater, per the county's 2024 Tax Lien Sale Booklet, submitted by wire or ACH through RealAuction one day before the sale. The booklet is dated May 20, 2024; the pages read did not confirm the same figure for 2027.
Payment, Pinal County	At the end of the sale the bidder checks out and pays for awarded liens by wire or ACH at pinal.arizonataxsale.com within 24 hours of the close of the online sale, per the county's 2024 booklet. The statutory outer limit under ARS 42-18116 is fifteen days after the close of the sale.
What is sold	A certificate of purchase: a lien on the property for the delinquent taxes, penalties, interest and fees. Not the property, not a deed, and no right of possession. A deed exists only at the end of a foreclosure action, years later, if the owner never redeems.
The bid	An annual interest rate, bid down from the statutory maximum of 16 percent. The lowest rate wins the lien. The buyer pays the full certificate amount at the sale and earns the bid rate on the amount while the lien is outstanding.
Redemption	At any time before a foreclosure judgment, through the county treasurer, by paying the certificate amount plus interest at the bid rate, subsequent taxes the holder paid, and statutory fees. The state frame is Title 42, Chapter 18; the county page carries the treasurer's own redemption instructions.
Foreclosure	Available to the certificate holder once the lien has been outstanding 3 years from the sale date, by action in superior court under ARS 42-18201, and not later than 10 years after the last day of the month in which the lien was acquired. Judgment bars redemption and directs the treasurer to issue a treasurer's deed. Before that judgment, the holder owns a claim, not a property.
Lien life	A certificate does not last forever. Under ARS 42-18127, if the lien is not redeemed and no foreclosure action is commenced within 10 years after the last day of the month in which the certificate was acquired, the certificate expires and the lien is void. The treasurer must notify the holder before the deadline, but the deadline runs whether the holder acts or not.
Costs on top of the certificate amount	The sale day payment covers the delinquent taxes, accrued interest, penalties and fees in the certificate amount. A holder who later pays subsequent delinquent taxes on the parcel adds them to the lien position under ARS 42-18121, at the certificate rate; a foreclosure, if it comes, carries court and notice costs the redemption math must also cover.

After the auction: county held certificates

County held certificates not sold at auction are available for purchase online from approximately the first week of March through the end of December, per the Treasurer. Liens that draw no bid at all are assigned to the state under ARS 42-18113 and are sold by assignment under ARS 42-18122.

Before you bid

Know the redemption window before the rate. Interest accrues at the bid rate from the sale, and the owner can cut it off at any time by redeeming. A lien priced for a 3 year hold that redeems in 90 days pays a quarter of the model; run the short case first.
Read the treasurer's current terms, not a recap. Vendors, registration deadlines and deposit rules change between sales, and county pages are rewritten each season. Re-read them on the treasurer's page before funding a deposit.
Subsequent taxes are part of the position. A holder can pay later delinquent taxes on the parcel and add them to the lien. Budget for carrying the position, not just buying it.
Set the maximum before the sale opens. The free Max-Bid Calculator below works backwards from your exit value to the highest certificate amount you can carry, with the costs shown.

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New York tax sales · Florida tax deed sales · Texas tax sales · Pennsylvania tax sales · Georgia tax sales · North Carolina tax foreclosure sales · Ohio tax foreclosure sales · Illinois tax lien sales · Michigan tax foreclosure sales · California tax defaulted property sales