O'Brien County, IA tax sales
How tax lien certificate sales work in O'Brien County, seat of Primghar: sale calendar, auction platform, over-the-counter lists, and the offices that run each sale.
Verified Jul 29, 2026 against official county and state sources.
New here? Read how Iowa tax sales work, the difference between a lien and a deed, and redemption periods.
How O'Brien County sells delinquent taxes
Tax certificate sale (lien)
- Run by
- O'Brien County Treasurer
- Frequency
- annual
- Typical timing
- The Treasurer holds the annual tax sale in mid June at the courthouse in Primghar. The treasurer page states: "2026 Tax Sale Information - The O'Brien County Tax Sale will begin at 9:00 a.m., on Monday, June 15, 2026. The sale will be conducted at the O'Brien County Courthouse. Bidders shall place their bids online." June 15, 2026 is the third Monday in June, the statutory Iowa sale date. Bidding closes at 10:30 a.m. the same morning. The county's notice adds that "An adjourned tax sale will be held any business day following the annual tax sale in which there are bidders present and there are parcels still available for sale."
- Next expected
- on the third Monday in June, 2027 (window; exact date posts closer to the sale)
Registration and deposit
Register online at the Iowa Tax Auction site. The county's notice states that no mailed or emailed registrations are accepted. For the June 15, 2026 sale, registration opened Monday, May 18, 2026 and closed Thursday, June 11, 2026, with every step completed by 11:59 p.m. on June 11. Each bidder pays a non-refundable $36.00 registration fee by ACH debit and completes an online W-9. Bidders must be 18 or older as of the sale date. An entity bidder needs a federal tax identification number plus either a designation of agent for service of process on file with the Iowa Secretary of State (515-281-5204) or a verified statement of trade name on file with the O'Brien County Recorder (712-957-3045). Platform support is (800) 800-9588 or [email protected]. Confirm the current year's registration window and fee with the Treasurer before each sale.
The sale is a hybrid: the Treasurer conducts it in the Treasurer's office on the second floor of the courthouse, but every bid is placed online through Iowa Tax Auction. Live floor bids are not accepted. Bidders need not attend, and anyone who does attend can use a courthouse computer on a first come, first serve basis. Bidding is a bid-down on undivided interest, opening at a 100 percent undivided interest with bids in whole percentage points from 99 percent down to 1 percent. The notice states O'Brien County does not use batches, and ties at the lowest percentage are settled by a random selection process. Bids may be uploaded before the sale but are not applied until it opens at 9:00 a.m. Winning bidders receive an invoice at close, and an ACH debit for the total pulls from the account used for the registration fee, covering delinquent taxes, special assessments, interest, special assessment collection fees, publishing costs, and a $20.00 certificate fee per certificate. Certificates take 7 to 15 days to issue. The assignment transaction fee is $100.00. Subsequent taxes must be paid through the "Login To Pay Subsequent Tax" module at iowatreasurers.org at $0.25 per parcel; the notice warns that online payments made outside that module are treated as voluntary and are omitted from redemption calculations. The delinquent tax list for the 2026 sale was published Saturday, May 30 in the N'West Iowa Review (Sheldon, IA), and the notice says the published parcels became viewable on the auction site by Monday, June 1, but only after registration is complete. Regular tax sale parcels become eligible for the 90 day notice of right of redemption after one year and nine months; public bidder parcels, flagged with an asterisk on the published list, become eligible at nine months. Certificates are canceled if no affidavit of service under Iowa Code 447.12 is filed within three years of the sale.
Register on SRI / ZEUSFrom lien to deed
- Run by
- County Treasurer
- Frequency
- none
- Typical timing
- Iowa holds no tax deed auction. The treasurer makes out a treasurer's deed to the certificate holder immediately after 90 days have expired from completed service of the notice of expiration of the right of redemption, once the holder returns the certificate and pays the deed and recording fees.
There is nothing for an investor to bid on at the deed stage in Iowa. The only auction is the June certificate sale. The certificate holder must return the certificate of purchase and remit the deed and recording fees within 90 calendar days after the redemption period expires, or the treasurer cancels the certificate.
Over-the-counter (leftover) purchases
Two routes reach parcels after the June sale. Parcels that remain unsold for want of bidders are carried to adjourned sales, which the treasurer sets at intervals of not more than two months until the next annual sale. Separately, certificates struck to the county at the public bidder sale may be assigned by the county for the total amount due on the date of assignment, or for a compromised amount, under a written agreement filed with the treasurer and a 10 dollar assignment transaction fee. Ask the county treasurer which county-held certificates are available for assignment.
New to this path? Read how over-the-counter certificates work.
County offices
Tax Collector (runs the certificate sale)
O'Brien County Courthouse, 2nd Floor, 155 S Hayes Ave, PO Box 310, Primghar, IA 51245
Official websiteNotes for O'Brien County
- O'Brien County publishes its full sale terms in an annual Notice to Tax Sale Purchasers PDF linked from the Treasurer's department page. That notice, not the department page, carries the registration window, fees, and bidding mechanics.
- There is no standalone parcel list file on the county website. The delinquent tax list runs once in the N'West Iowa Review and is then mirrored on the Iowa Tax Auction platform, where it is visible only after a bidder account clears registration.
- The Treasurer's office is at 155 S Hayes Ave in Primghar with mail going to PO Box 310. Marcella (Missy) Hattermann is the Treasurer and Natosha Petitt is the Tax Deputy per the county page.
- Verified sale terms cover the June 15, 2026 sale and its adjournments. Contact the Treasurer at 712-957-3210 to confirm the next annual sale date, registration window, and fee schedule.
Iowa statewide rules
- Minimum return
- No statutory minimum return; what you earn is set by the share of ownership taken at the sale
- Redemption
- A parcel may be redeemed at any time before the right of redemption expires. After one year and nine months from the date of sale, the certificate holder may serve a notice of expiration of the right of redemption on the person in possession, the person in whose name the parcel is taxed, and every mortgagee, contract vendor, recorded lessor, and other party of record. The right of redemption then ends 90 days after that service is complete, which means the affidavit of service has been filed with the county treasurer. Three shortened tracks exist: nine months from a public bidder sale under section 446.18, and three months from an abandoned-property or public nuisance sale under section 446.19A or 446.19B. After the treasurer delivers the deed, redemption is possible only through an equitable action in district court, and only by a person who could have redeemed during the 90-day window.
- Surplus proceeds
- No surplus arises. The deed conveys the parcel to the certificate holder rather than selling it to the highest bidder, so there are no excess proceeds to distribute. Where the winning bid was less than 100 percent, the deed conveys only that undivided percentage interest in the parcel.
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.
Frequently asked questions
Does O'Brien County, Iowa sell tax liens or tax deeds?
- O'Brien County follows Iowa's tax lien state system.
When is the O'Brien County tax certificate sale?
- The Treasurer holds the annual tax sale in mid June at the courthouse in Primghar. The treasurer page states: "2026 Tax Sale Information - The O'Brien County Tax Sale will begin at 9:00 a.m., on Monday, June 15, 2026. The sale will be conducted at the O'Brien County Courthouse. Bidders shall place their bids online." June 15, 2026 is the third Monday in June, the statutory Iowa sale date. Bidding closes at 10:30 a.m. the same morning. The county's notice adds that "An adjourned tax sale will be held any business day following the annual tax sale in which there are bidders present and there are parcels still available for sale.". Registration and bidding happen on the county's online platform. Always confirm the exact date with the Tax Collector before the sale.
How often does O'Brien County hold tax deed sales?
- none. Each sale is scheduled and advertised in advance, so check the county's tax deed calendar for the next posted date.
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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