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Tax Sale Atlas

Jasper County, IA tax sales

Tax Sale Atlas maps the Jasper County, IA tax sale, one of 2,553 counties in 30 states. Iowa sells tax lien certificates paying up to 24%. Sale office, calendar and list locations read from the county’s own official pages on Jul 29, 2026.

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

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

Next sale
Iowa holds no tax deed auction.
Format
ZEUS
Registration
Bidders register online through the Iowa Tax Auction platform.
County office
641-792-7731
Every displayed fact carries a source badge. Verified Jul 29, 2026 against official county and state pages.How we verify
On this page

How Jasper County sells delinquent taxes

From lien to deed

Iowa holds no separate tax deed auction. The county treasurer makes out a deed for each parcel sold and unredeemed immediately after 90 days have expired from the date of completed service of the notice of expiration of the right of redemption, once the holder returns the certificate of purchase and pays the deed and recording fees.

Tax certificate sale (lien)

SRI / ZEUS
Run by
Jasper County Treasurer
Frequency
annual
Registration
Bidders register online through the Iowa Tax Auction platform.
Next expected
on the third Monday in June, 2027 (window; exact date posts closer to the sale)
Sale list
Treasurer property tax and annual tax sale page
When it runs
The treasurer's page states, "The Annual Tax Sale takes place in June of each year." The same page says a notice of the annual tax sale is mailed no later than May 1, and that "Delinquent taxes on a parcel subject to sale will be advertised in June in the Newton Daily News."
Registration and deposit

Bidders register online through the Iowa Tax Auction platform. The treasurer's page says, "If you would like to register to bid at the Jasper County Tax Sale, please use the link below," and links to iowataxauction.com. The platform's own steps are to create an account, apply to the auction, view listings, bid, and then view results. Jasper County does not publish a registration fee, deposit amount, or registration cutoff on its site, so confirm those with the treasurer's office before the June sale.

Sale format and venue
The treasurer's office runs the sale under Iowa Code chapter 446 and describes it as "an open competitive bidding process" over parcels whose taxes have become delinquent. Jasper County does not post the parcel list as a downloadable file. The page says delinquent parcels subject to sale are advertised in June in the Newton Daily News, that copies are available at the treasurer's office, and that printouts may be purchased. Parcels are "listed in parcel number order and have a sequence number for bidding purposes." The county also states that "The investor is responsible for all research on parcels available for auction." For redemption fund questions the page directs callers to the treasurer's office at 641-792-7731. The treasurer's office moved to the Jasper County Administration Building at 315 W. 3rd St. N., Suite 500; the 101 1st St. N. courthouse address still appears in the site footer, so use the Administration Building address for in-person visits.
Register on SRI / ZEUS
Source: Jasper County Treasurer - Property Tax and Annual Tax Sale· Verified Jul 29, 2026

Jasper County tax sale list and auction calendar

For Jasper 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 property tax and annual tax sale page for the current advertised parcels, then recheck it before the auction.

  2. Register to bid

    Bidders register online through the Iowa Tax Auction platform. Full requirements are in the sale card above.

  3. Sale day

    Iowa holds no tax deed auction. Bidding runs on ZEUS; check posted sale dates, registration status, and bidding windows there.

  4. Confirm with the office

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

Before you bid in Jasper County

  1. Start with the live sale list

    Pull the current advertised parcels from Treasurer property tax and annual tax sale page. Lists can change before the sale, so recheck the county source before you price a parcel.

  2. Confirm registration and deposit

    Bidders register online through the Iowa Tax Auction platform. The treasurer's page says, "If you would like to register to bid at the Jasper County Tax Sale, please use the link below," and links to iowataxauction.com. The platform's own steps are to create an account, apply to the auction, view listings, bid, and then view results. Jasper County does not publish a registration fee, deposit amount, or registration cutoff on its site, so confirm those with the treasurer's office before the June sale.

  3. Check the state rules that change the bid

    Read the Iowa 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

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. Every state has its own name for what goes unsold, so check what Iowa calls its leftover tax-sale inventory.

Use the arrow keys to switch between these sections.

County offices

Tax Collector (runs the certificate sale)

Jasper County Treasurer

641-792-7731

Jasper County Administration Building, 315 W. 3rd St. N., Suite 500, Newton, IA 50208 (mailing: P.O. Box 1387, Newton, IA 50208)

Official website

County notes

  • Jasper County sells tax sale certificates online through the Iowa Tax Auction platform, which runs on the Zeus Auction Program. There is no in-person courthouse auction described on the county's page.
  • The county does not publish the sale parcel list on its website. The list runs in the Newton Daily News in June, and the treasurer's office sells printouts at the counter, so plan research time around that publication date.
  • Registration fee, deposit, and cutoff date are not published by Jasper County. Confirm them with the treasurer's office or inside the Iowa Tax Auction account before the June sale.
  • Property tax counter hours are 8:00 a.m. to 4:30 p.m. Monday through Friday, plus the second Saturday of each month from 8:00 a.m. to 11:00 a.m.

Iowa rules

Max interest rate
24% per year, fixed by statute (not bid down)
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.
Governing statute
Iowa Code Chapter 446

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 Iowarules and every county →

Frequently asked questions

Does Jasper County, Iowa sell tax liens or tax deeds?

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

When is the Jasper County tax certificate sale?

The treasurer's page states, "The Annual Tax Sale takes place in June of each year." The same page says a notice of the annual tax sale is mailed no later than May 1, and that "Delinquent taxes on a parcel subject to sale will be advertised in June in the Newton Daily News." Registration and bidding happen on the county's online platform. Always confirm the exact date with the County Treasurer before the sale.

How often does Jasper County hold tax deed sales?

Jasper County holds its tax deed sale none. Iowa holds no tax deed auction. 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. Iowa's redemption rule: 1 year 9 months from the sale before the notice of expiration can be served, then 90 days after service is complete. Call the 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 Jasper County tax sale list?

Jasper County posts its tax sale list at jasperia.org. 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 29, 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.

Iowa tax salesDue diligence guide
Call Jasper County TreasurerOpen auction