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Tax Sale Atlas

Coconino County, AZ tax sales

How tax lien sales work in Coconino County, seat of Flagstaff: sale calendar, auction platform, over-the-counter lists, and the offices that run each sale.

New to tax sales? Read how Arizona tax sales work or look terms up in the glossary.

Next sale
Held annually in February.
Format
RealAuction
County office
(928) 679-8188
Every displayed fact carries a source badge. Verified Jul 13, 2026 against official county and state pages.How we verify
On this page

How Coconino County sells delinquent taxes

From lien to deed

Arizona does not hold county tax deed auctions. Instead, a certificate of purchase holder whose lien has not been redeemed may file a judicial action to foreclose the owner's right to redeem, but only after three years have passed since the tax lien sale.

Tax certificate sale (lien)

RealAuction
Run by
Coconino County Treasurer
Frequency
annual
Typical timing
Held annually in February.
Next expected
in February, 2027 (window; exact date posts closer to the sale)
Sale list
Treasurer Tax Liens page (monthly over-the-counter list plus advertised sale property list)
When it runs
Held annually in February. The county Tax Liens page states: "The 2026 Tax Lien Sale was held on February 10, 2026, online through RealAuction." The Treasurer's Tax Certificate Process states: "The tax certificate auction must take place during the month of February." For the 2026 sale, RealAuction opened for registration and bidding on January 20, 2026 (1:00 PM MT), and batches closed on February 10, 2026 between 9:00 AM and 4:00 PM MT at 60-minute intervals.
Registration and deposit

Register on the RealAuction site at coconino.arizonataxsale.com by creating a username and password. For 2026 the site opened for registration and bidding on January 20, 2026 (1:00 PM MT), and a deposit of 10 percent of anticipated winnings was due by February 10, 2026 (4:00 PM MT). Coconino applies a Single Simultaneous Bidding Entity Rule, so each bidder may register only once and cannot have a related bidder in the sale. Bidding is a proxy auction with the interest rate bid down from the 16 percent statutory maximum to the lowest rate; payment for winning certificates is by ACH only, due February 11, 2026 for the 2026 sale. Registration stays open all year for over-the-counter purchases.

Sale format and venue
Interest ranges from 0 to 16 percent and is bid down to the lowest rate; the winner receives a Certificate of Purchase. Unsold certificates are struck to the state at 16 percent and become available over the counter. The delinquent parcel list was advertised in the Arizona Daily Sun on January 20, 2026 for the February 10, 2026 sale, and the Treasurer publishes a monthly over-the-counter list on the Tax Liens page. Over-the-counter purchases, endorsement payments, and lien research run through the Treasurer's separate GovPros portal at pay.govpros.us/az/coconino/treasurer. Statutory basis is A.R.S. Title 42, Chapter 18; the sale is offered under A.R.S. 42-18109. This is a tax-lien certificate sale only, as Arizona counties hold no tax-deed auction.
Register on RealAuction
Source: Coconino County Treasurer - Tax Liens page· Verified Jul 13, 2026

Coconino County tax sale list and auction calendar

For Coconino County tax sale 2026 searches, use the county-run sources below rather than a copied parcel list, and confirm the parcel, registration cutoff, deposit, and payment deadline against the county before you bid.

  1. Get the advertised list

    Use Treasurer Tax Liens page (monthly over-the-counter list plus advertised sale property list) for the current advertised parcels, then recheck it before the auction.

  2. Register to bid

    Ask the county office how and when to register; many counties close registration days or weeks before the sale.

  3. Sale day

    Held annually in February. Bidding runs on RealAuction; check posted sale dates, registration status, and bidding windows there.

  4. Confirm with the office

    If the list, platform, and notice disagree, use Coconino County Treasurer as the source to confirm which parcels are actually offered.

Before you bid in Coconino County

  1. Start with the live sale list

    Pull the current advertised parcels from Treasurer Tax Liens page (monthly over-the-counter list plus advertised sale property list). Lists can change before the sale, so recheck the county source before you price a parcel.

  2. Confirm registration and deposit

    Register on the RealAuction site at coconino.arizonataxsale.com by creating a username and password. For 2026 the site opened for registration and bidding on January 20, 2026 (1:00 PM MT), and a deposit of 10 percent of anticipated winnings was due by February 10, 2026 (4:00 PM MT). Coconino applies a Single Simultaneous Bidding Entity Rule, so each bidder may register only once and cannot have a related bidder in the sale. Bidding is a proxy auction with the interest rate bid down from the 16 percent statutory maximum to the lowest rate; payment for winning certificates is by ACH only, due February 11, 2026 for the 2026 sale. Registration stays open all year for over-the-counter purchases.

  3. Check the state rules that change the bid

    Read the Arizona due-diligence checklist before bidding. Redemption, liens that survive a tax deed, title cleanup, and payment deadlines can change what a parcel is worth.

  4. Set a walk-away number

    Work out what the parcel is actually worth with the rural land value estimator, then turn it into a ceiling with the tax deed max-bid calculator.

Over-the-counter (leftover) purchases

Liens that receive no bid are struck to the state. Any person may later buy a state-held certificate over the counter by assignment from the county treasurer, paying the amount due plus subsequent taxes and a small assignment fee. Assigned state certificates earn the full 16 percent.

New to this path? Read how over-the-counter certificates work. Every state has its own name for what goes unsold, so check what Arizona calls its leftover tax-sale inventory.

Use the arrow keys to switch between these sections.

County offices

Tax Collector (runs the certificate sale)

Coconino County Treasurer

(928) 679-8188

110 E. Cherry Ave., Flagstaff, AZ 86001

Official website

County notes

  • Treasurer's Office is led by Sarah Benatar, Coconino County Treasurer and Ex-Officio Tax Collector. Additional contacts: email [email protected], toll free 877-500-1818, fax 928-213-9243, hours Monday to Friday 8:00 AM to 5:00 PM.
  • Direct list links from the Tax Liens page: over-the-counter list at coconino.az.gov/DocumentCenter/View/43 (updated monthly; the July 2026 list was current at research time) and the advertised sale property list at coconino.az.gov/DocumentCenter/View/70663.
  • Provenance caveat: the county-published legal-notice PDF that was fetchable (azdailysun.com/app/tax/thistax.pdf) is the 2018 edition; it corroborates the RealAuction platform, February timing, 10 percent deposit, and A.R.S. 42-18109 but should not be cited for current-year dates. Current-year facts come from the county Tax Liens page, the Treasurer page, and the 2026 RealAuction bidding rules. Both the 2018 (February 13) and 2026 (February 10) sales fell on the second Tuesday of February.

Arizona rules

Max interest rate
16% per year, bid down at auction
Minimum return
No statutory minimum; interest accrues at your bid rate
Redemption
The owner or any interested party can redeem the lien at any time until the right to redeem is foreclosed by the court. A certificate of purchase holder cannot begin a foreclosure action until three years after the sale, and the lien becomes void if no foreclosure is commenced within ten years after the month the certificate was acquired.
Surplus proceeds
If the court forecloses the right to redeem, the county treasurer issues a treasurer's deed conveying the parcel to the certificate holder. Because the property is conveyed by deed rather than sold at auction, there is no auction surplus to distribute.
Governing statute
A.R.S. Title 42, Chapter 18

A tax deed does not convey marketable title. Most buyers file a quiet title action before they can resell or insure the property. See the due diligence guide.

See the full Arizonarules and every county →

Frequently asked questions

Does Coconino County, Arizona sell tax liens or tax deeds?

Tax lien certificates. In Arizona investors buy the lien, not the property; the County Treasurer runs the sale.

When is the Coconino County tax certificate sale?

Held annually in February. The county Tax Liens page states: "The 2026 Tax Lien Sale was held on February 10, 2026, online through RealAuction." The Treasurer's Tax Certificate Process states: "The tax certificate auction must take place during the month of February." For the 2026 sale, RealAuction opened for registration and bidding on January 20, 2026 (1:00 PM MT), and batches closed on February 10, 2026 between 9:00 AM and 4:00 PM MT at 60-minute intervals. Registration and bidding happen on the county's online platform. Always confirm the exact date with the County Treasurer before the sale.

I own a property in this sale. Can I stop it?

Often yes, by paying the overdue taxes, interest, and costs before the deadline. Arizona's redemption rule: 3 years from the tax lien sale before the holder can foreclose. Call the Coconino County Treasurer as early as possible for your exact payoff and options; deadlines are strict. Free help: lawhelp.org lists legal aid programs, and consumerfinance.gov lists HUD-approved housing counselors.

Where can I find the Coconino County tax sale list?

Coconino County posts its tax sale list at coconino.az.gov. Lists go up ahead of each sale and keep changing until the sale date, so confirm every parcel against the county's legal advertisement before you bid.

Verified Jul 13, 2026 against official county and state sources.

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.

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Compare sale calendars, platforms, and rules across the state, or read the guides before you bid.

Arizona tax salesDue diligence guide
Call Coconino County TreasurerOpen auction