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Tax Sale Atlas

Ada County, ID tax sales

Tax Sale Atlas maps the Ada County, ID tax sale, one of 2,650 counties in 32 states. Idaho sells the deed itself, so no statutory investor interest rate applies. Sale office, calendar and list locations read from the county’s own official pages on Sep 7, 2026.

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

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

Next sale
Ada County fixes no annual tax deed sale date.
Format
County site
County office
(208) 287-6800
Every displayed fact carries a source badge. Verified Sep 7, 2026 against official county and state pages.How we verify
On this page
Look up a sale detail

Ada County Board of Commissioners, administered by the Ada County Treasurer and Tax Collector. Public Surplus. annual

Record quality: high. Last verified: 2026-09-07.

Property Auction and Tax Delinquencies, Ada County Treasurer (source accessed 2026-09-07)

Recorded reference information. Verify current sale conditions with the county. Read the full sale details.

Link to this detail

How Ada County sells delinquent taxes

No tax lien certificate sale

Idaho sells no tax lien certificate to investors. Under Idaho Code 63-1001 a delinquency has the force and effect of a sale to the county tax collector as grantee in trust for the county, so the county is the only party that ever holds the delinquency.

Tax deed sale

Public Surplus
Run by
Ada County Board of Commissioners, administered by the Ada County Treasurer and Tax Collector
Frequency
annual
Typical timing
Ada County fixes no annual tax deed sale date.
Sale list
Notice of Tax Deed Auction (parcel list)
When it runs
Ada County fixes no annual tax deed sale date. Sales are multi-day online auctions held at irregular intervals, sometimes twice in one year and sometimes more than a year apart. The county's published auction record lists sales on April 8 to 10, 2026 and October 13 to 16, 2025, and in September 2024, July 2023, October 2022, August 2022 and September 2021. The most recent notice states that the Board of Commissioners "will offer for sale at public auction through Public Surplus: Government Surplus Auctions, to the highest bidder, August 31- Sept 3 of 2026, the below properties acquired by the County through Tax Deed." The heading above that link on the Treasurer's page still carries a 2022 label while the notice it points to gives 2026 dates, so confirm the current dates with the Treasurer before planning a bid.
Registration and deposit

Bidding is online through Ada County's Public Surplus storefront, and you sign in to a Public Surplus account to place a bid. Each parcel opens at a minimum bid set to cover the delinquent taxes, late charges, interest and costs. Confirm payment deadlines and how the deed is delivered with the Treasurer's office at (208) 287-6800 before you bid.

Sale format and venue
Ada County publishes its tax deed parcel list online. The Treasurer's Property Auction and Tax Delinquencies page carries a Notice of Tax Deed Auction naming every parcel offered, with parcel number, street address and legal description, and links straight to the live lots on Public Surplus. The most recent notice offered five Boise parcels. Idaho sells no tax lien certificates, so there is no interest rate to bid and no redemption period running against the buyer. The county has already taken the deed, and the former owner's right to redeem ends the moment the commissioners enter into the contract of sale. Minimum bids cover only taxes, late charges, interest and costs, and can sit far below market: the county's own auction record shows a Meridian parcel with a $10,765.99 minimum bid selling for $330,301.00 in April 2026, and it also shows parcels drawing no bids at all, so underwrite each one. Anything paid above the minimum bid becomes excess proceeds payable to the former owner and lienholders, not to the county and not to the buyer, with claims due within 60 days of the notice of sale. Ada County runs a separate manufactured home auction, published with the Sheriff's legal notices.
Register on Public Surplus
Source: Property Auction and Tax Delinquencies, Ada County Treasurer· Verified Sep 7, 2026

Ada County tax sale list and auction calendar

For Ada 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. If the parcels on this list are vacant land rather than houses, what buying land at a tax sale hands you is the place to start.

  1. Get the advertised list

    Use Notice of Tax Deed Auction (parcel 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

    Ada County fixes no annual tax deed sale date. Bidding runs on County site; check posted sale dates, registration status, and bidding windows there.

  4. Confirm with the office

    If the list, platform, and notice disagree, use Ada County Board of Commissioners, administered by the Ada County Treasurer and Tax Collector as the source to confirm which parcels are actually offered.

Before you bid in Ada County

  1. Start with the live sale list

    Pull the current advertised parcels from Notice of Tax Deed Auction (parcel list). Lists can change before the sale, so recheck the county source before you price a parcel.

  2. Confirm registration and deposit

    Bidding is online through Ada County's Public Surplus storefront, and you sign in to a Public Surplus account to place a bid. Each parcel opens at a minimum bid set to cover the delinquent taxes, late charges, interest and costs. Confirm payment deadlines and how the deed is delivered with the Treasurer's office at (208) 287-6800 before you bid.

  3. Check the state rules that change the bid

    Read the Idaho due-diligence checklist before bidding. Redemption, liens that survive a tax deed, title cleanup, and payment deadlines can change what a parcel is worth. Which liens survive is state law, so read what survives a tax deed in Idaho before you price the title work.

  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.

Use the arrow keys to switch between these sections.

County offices

Tax sale office

Ada County Treasurer, Tax Collector and Public Administrator

(208) 287-6800

200 W. Front Street, Boise, ID 83702. Mailing address P.O. Box 2868, Boise, ID 83701

Official website

County notes

  • The auction is conducted by the Board of County Commissioners under Idaho Code 31-808 and administered by the Treasurer, who issues the Notice of Tax Deed Auction and posts the parcels for bidding.
  • Bidding runs online through the county's Public Surplus storefront rather than at the courthouse, and lots appear there only while a sale is open.
  • Sale volume is small. The county's auction record covers about thirty parcels since 2016, so expect a handful of lots per sale rather than a large catalog.
  • Excess proceeds belong to the former owner and lienholders. The Treasurer publishes a claim form and an auction history listing each parcel's minimum bid, sale price and excess amount.
  • Watch the Treasurer's Property Auction and Tax Delinquencies page and the county's legal notices directory for the next auction notice.

Idaho rules

Redemption
The window belongs to the county's holding period, not to the auction. After the tax deed issues to the county, the record owner or a party in interest may redeem by paying the delinquency with late charges, accrued interest and costs including title search and professional fees, plus the taxes that accrued after the deed. That right runs only up to the moment the commissioners enter into a contract of sale or the property is transferred by county deed. Fourteen months after issuance it expires regardless. Since 31-808 requires the auction within those same fourteen months, a buyer at the county auction takes the property with the redemption already extinguished, and the tax deed is presumptive evidence of the regularity of everything before it.
Deed deposit
No statutory deposit. The commissioners set a minimum bid covering all property taxes owing, interest and costs, and the parcel goes to the highest bidder over it. Payment terms are set by each county's own terms of sale, so confirm them before you bid.
Governing statute
Idaho Code title 63, chapter 10

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 Idahorules and every county →

Frequently asked questions

Does Ada County, Idaho sell tax liens or tax deeds?

Tax deeds. Idaho sells no tax lien certificates to investors; the Board of County Commissioners sells the property itself at a public tax sale.

How often does Ada County hold tax deed sales?

Ada County holds its tax deed sale once a year. Ada County fixes no annual tax deed sale date. Each sale is scheduled and advertised in advance, so check the county's tax deed calendar for the next posted date.

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

Often yes, by paying the overdue taxes, interest, and costs before the deadline. Idaho's redemption rule: None for the buyer. The former owner's right to redeem ends when the county commissioners enter into a contract of sale or transfer the property by county deed, and expires in any case fourteen months after the tax deed was issued to the county. Call the Ada County Board of Commissioners, administered by the Ada County Treasurer and Tax Collector 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 Ada County tax sale list?

Ada County posts its tax sale list at adacounty.id.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 Sep 7, 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.

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