Benton County, IA tax sales
How tax lien certificate sales work in Benton County, seat of Vinton: 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 Benton County sells delinquent taxes
Tax certificate sale (lien)
- Run by
- Benton County Treasurer
- Frequency
- annual
- Typical timing
- Annually on the third Monday in June. The county page states unpaid taxes "are offered at Public Tax Sale which is held annually on the third Monday in June online at www.iowataxauction.com." The treasurer's 2026 terms notice states: "The 2026 annual Tax Sale will be held by the Benton County Treasurer on Monday, June 15, 2026, in the Benton County Treasurer's Office on the first floor of the Benton County Courthouse, 111 E 4th St Suite 3, Vinton, Iowa, beginning at 9:00 a.m. Bidders will place their bids online." Bidding closes at 10:30 a.m. the same morning. The 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
Registration is online only at www.iowataxauction.com. The treasurer's 2026 notice states "No mailed or emailed registrations will be accepted" and set the window as "Registration will begin Monday, May 18, 2026 and end Thursday, June 11, 2026," with all steps completed by 11:59 p.m. on June 11, 2026. Bidders pay a non-refundable $36.00 registration fee by ACH debit and complete an online W-9. All 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 or a verified trade name statement on file with the Benton County Recorder. Platform registration support is listed at (800) 800-9588 or [email protected].
Bidding is Iowa's bid-down-ownership method, not a rate bid. The 2026 notice states delinquent taxes on each parcel are "offered for sale to all bidders beginning with a 100% undivided interest" and that "Bid downs will range in whole percentage points from 99% to 1%." The certificate goes to the bidder designating the smallest percentage, with ties broken by a random selection process. The county confirms it is "not utilizing batches," and bids may be uploaded before the sale opens but are not applied until 9:00 a.m. Winning bidders are invoiced at close and an ACH debit initiates automatically from the account used for registration fees; the total includes delinquent taxes, special assessments, interest, collection fees, publishing costs, and a $20.00 certificate fee per certificate. Returned payments carry a $30.00 service fee and a three-business-day cure window. Certificates are assignable for a $100.00 assignment transaction fee, which cannot be added to the redemption amount. Interest accrues at 2% per month, and subsequent taxes may be paid 45 days after delinquency and added to the redemption total. A 90-day notice of right of redemption may issue after one year and nine months for regular tax sale parcels, or after nine months for public bidder parcels (marked with an asterisk on the published list). If no affidavit of service is filed under Iowa Code section 447.12 within three years, the treasurer cancels the certificate. Parcels that draw no private bidder must be offered at Public Bidder Sale, where the county itself is required to buy the delinquency. The list of parcels is published in the Vinton Eagle and Vinton Livewire in late May (May 26 and May 27 for 2026) and becomes viewable on the auction site to registered bidders shortly after, so the posted PDF is refreshed each year.
Register on Online auctionFrom 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)
Notes for Benton County
- Benton County's county seat is Vinton, and the treasurer's office sits on the first floor of the Benton County Courthouse at 111 E 4th St, Suite 3.
- The sale is administered from the courthouse but every bid is placed online through Iowa Tax Auction; there is no in-person outcry bidding.
- Registration on the auction platform is required just to view the working parcel list, which the county says "is updated nightly" during the run-up to the sale.
- Payment status on individual parcels can be checked through the statewide payment site at www.iowatreasurers.org.
- Courthouse hours are Monday through Friday, 8:00 a.m. to 4:30 p.m., with property tax collections staffed the full window.
- Redemption payments go to the treasurer and must be received, not just postmarked, by month end to stop another 2% from accruing.
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 Benton County, Iowa sell tax liens or tax deeds?
- Benton County follows Iowa's tax lien state system.
When is the Benton County tax certificate sale?
- Annually on the third Monday in June. The county page states unpaid taxes "are offered at Public Tax Sale which is held annually on the third Monday in June online at www.iowataxauction.com." The treasurer's 2026 terms notice states: "The 2026 annual Tax Sale will be held by the Benton County Treasurer on Monday, June 15, 2026, in the Benton County Treasurer's Office on the first floor of the Benton County Courthouse, 111 E 4th St Suite 3, Vinton, Iowa, beginning at 9:00 a.m. Bidders will place their bids online." Bidding closes at 10:30 a.m. the same morning. The 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 Benton 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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