Span v. Maricopa County Treasurer
2014Confirmed that tax lien certificates expire 10 years after purchase if no foreclosure action is taken.
Tax Deed
Arizona tax lien auctions are annual, February-based events where investors bid down the interest rate (capped at 16%) on delinquent tax debt. The purchaser receives a certificate of purchase, not the property. If the owner fails to redeem within three years, the investor may initiate a judicial foreclosure to potentially acquire the deed.
| Upcoming auctions | 0 |
| Counties covered | 15 |
| Scored properties | 0 |
| Last updated | Apr 15, 2026 |
| Sale Type | Tax Lien |
| Redemption Period | The redemption period is three years from the date of the tax lien sale. The property owner or any person with a legal or equitable interest may redeem the lien at any time before the delivery of a treasurer's deed. |
| Penalty / Interest | Arizona utilizes a reverse auction format where bidders compete to accept the lowest interest rate. The statutory maximum is 16% per annum, calculated as simple interest and prorated monthly. |
| Jurisdiction Type | County |
| Jurisdiction Count | 15 |
| Typical Sale Month | February |
| Assessor Portal | — |
| GIS Portal | — |
| Tax Portal | — |
Arizona conducts tax lien sales via a reverse auction where bidders compete to accept the lowest interest rate. Auctions are held annually, often online through platforms like RealAuction. Bidders must register with the county treasurer, provide identification, and submit a deposit. The minimum bid is the total of delinquent taxes, interest, penalties, and fees, with full payment typically due shortly after the sale.
Purchasers do not gain possession or entry rights during the redemption period. If the lien is not redeemed within three years, the purchaser may initiate a judicial foreclosure action in Superior Court to obtain a treasurer's deed. The lien expires 10 years after the original sale if no foreclosure action is commenced.
Estimate attorney and court costs for clearing title after a Arizona tax deed purchase.
Key Arizona counties for tax deed investors.
Maricopa County
Highest sale volume in the state; major metro area.
Pima County
Significant volume; utilizes online auction platforms.
Step-by-step process for participating in Arizona tax deed sales.
Research the catalog
Review the delinquent tax list published by the county treasurer.
Perform due diligence
Investigate property status, environmental risks, and title issues.
Register for auction
Complete registration with the county and submit the required deposit.
Submit bids
Participate in the auction by bidding down the interest rate.
Pay the balance
Remit the full payment for winning bids by the county's deadline.
Initiate foreclosure
File a judicial foreclosure action in Superior Court after three years if the lien remains unredeemed.
Primary statute sections governing tax deed sales in Arizona.
A.R.S. § 42-18112
Governs the timing of the annual tax lien sale in February.
A.R.S. § 42-18152
Defines the three-year redemption period.
A.R.S. § 42-18153
Sets the interest rate structure for redemption.
A.R.S. § 42-18201
Authorizes the judicial foreclosure of the right to redeem.
Landmark court decisions affecting Arizona tax deed investors.
Confirmed that tax lien certificates expire 10 years after purchase if no foreclosure action is taken.
A federal case influencing state-level discussions regarding the handling of excess proceeds in tax foreclosures.
Common questions from Arizona tax deed investors.
Properties may have environmental contamination, be HOA common areas, or have low-value land classifications; the county provides no warranty on title.
Data sourced from public state statutes, county recorder offices, and AuctionSift's proprietary county monitoring network. Updated weekly.