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Marathon County tax sales, Wisconsin
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Marathon County is the most active enforcement program in this Wisconsin set, and the record for it is committee reporting rather than a treasurer sale page, which this page flags plainly. The county runs in rem court actions and tax deed actions concurrently, choosing per parcel: occupied parcels toward the court track, unoccupied and commercial parcels toward the tax deed track. In 2025 the county reported roughly 173 parcels eligible for action, an in rem petition batch of 89 parcels filed for an October 7 hearing, and an initial tax deed batch of 43 parcels, with appraisals underway so acquired parcels could be listed on Wisconsin Surplus. Unverified flags: these figures come from secondary summaries of county committee meetings, and no dated 2026 sale, deposit or payment terms were verified from a county sale source.
Selling office: Marathon County Treasurer
Next sale: No dated sale verified; listings on Wisconsin Surplus follow title as batches complete. The county's own reporting puts sale timing behind two gates: title (the in rem hearing or the tax deed process) and preparation (appraisals, and vacancy notices or eviction steps where a parcel is occupied, which staff said could delay individual listings). Expect listings in batches through the cycle rather than on one date.
As of November 9, 2026, Marathon County's program is mid-cycle: enforcement batches from 2025 work toward title and listings as appraisals and vacancy steps complete. No single 2026 or 2027 sale date exists to publish; the watch is the Wisconsin Surplus listings under Marathon County and the committee's batch reports.
Dates and deadlines
| Next sale | No dated sale verified; listings on Wisconsin Surplus follow title as batches complete |
| The certificate | On September 1 the county treasurer issues a tax certificate under s. 74.57 for taxes unpaid at the close of August 31, held by the county itself. County reporting tracks the certificate inventory by tax year. |
| Redemption | The owner may redeem while the certificate runs, generally two years, paying the delinquent taxes with interest and penalty under s. 74.47. County reporting notes many owners satisfy balances before formal steps complete. |
| Track selection | Staff run two tracks concurrently: in rem court filings where court involvement or eviction is likely to be needed, and tax deed notices where a faster administrative transfer fits. Roughly 173 parcels were reported eligible in 2025. |
| The filings | The reported 2025 batches: an in rem petition listing 89 parcels filed for an October 7 hearing, and an initial tax deed batch of 43 parcels, split where certified notices came back unclaimed and publication or alternate notice was required. |
| Title | Parcels that remain unpaid at the hearing or through the deed process pass to the county; the committee authorized staff to proceed with taking title through the in rem process for listed parcels unpaid by the hearing date. |
| The sale | Acquired parcels are appraised and listed for sale on Wisconsin Surplus; the committee weighed Wisconsin Surplus against an RFP process and deferred deed restriction decisions. Vacancy notices can delay individual listings. |
| Format | Two-track enforcement, in rem actions and tax deed actions in parallel, with acquired parcels listed for sale on Wisconsin Surplus: Marathon County takes title through whichever track fits the parcel, court in rem filings or the faster tax deed process, and lists acquired parcels for sale on Wisconsin Surplus after appraisals are complete. Sale timing follows the title work, not a fixed annual date. |
| Selling office | Marathon County Treasurer |
Sources: Marathon County committee reporting, in rem and tax deed program (Citizen Portal summaries of county committee meetings). Marathon County administration, foreclosure and tax deed plan (Citizen Portal summary). Wisconsin Statutes s. 75.521, Foreclosure of tax liens by action in rem. Wisconsin Statutes s. 75.35, Sale of tax-deeded lands. Confirm with the selling office before relying on any date on this page: sales move, terms change, and parcels are pulled up to sale day.
Research Marathon County parcels before you bid
A sale list gives you the parcels, the date, and the opening terms. It does not give you the owner, the value, or the rest of the picture: liens, foreclosure status, and parcel history. PropertyRadar is the data platform for that layer. It carries owner records, assessed and market values, foreclosure and tax data, and property history for parcels across Marathon County, searchable by address, owner, or county, including parcels that never reach a sale list.
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How Wisconsin tax sales work
- Delinquent taxes accrue at eighteen percent a year, and nobody auctions anything. Under s. 74.47 unpaid Wisconsin taxes bear interest at one percent per month plus a penalty of one half of one percent per month. There is no lien sale at this stage, in any county, to anyone.
- On September 1 the treasurer issues the tax certificate to the county itself. Under s. 74.57 the county treasurer issues a tax certificate for the taxes and charges unpaid at the close of August 31, and the certificate holder is the county. The investor product that lien states sell simply does not exist in Wisconsin.
- The owner redeems from the county, generally within two years. Redemption means paying the delinquent taxes with the accrued interest and penalty to the county treasurer. While the certificate runs, the county holds a lien and nothing more; it cannot sell the land.
- Title moves by tax deed or by in rem foreclosure. When redemption expires unredeemed, the county may take a tax deed under ss. 75.01, 75.12 and 75.14, after the notice s. 75.12 requires, with the owner able to redeem until the deed is recorded; or it may foreclose in rem under s. 75.521, where the published notice fixes a last day for redemption at least eight weeks after first publication and the judgment vests title in the county. The City of Milwaukee and Milwaukee County may file after one year of delinquency; other counties generally after two years.
- Only then does the public get a purchase point. Tax-deeded lands are sold under ss. 75.35, 75.36 and 75.69 in the manner the county board sets: sealed bids, standing lists, online auctions and over-the-counter sales all appear in this set. Where s. 75.69 governs, no parcel may be sold for less than its appraised value, and conveyances are executed by the county clerk.
- The former owner keeps two statutory protections. The county board must provide by ordinance a right for the former owner of a single-family owner-occupied property to repurchase before the county sells (s. 75.35(3)), and on any sale the proceeds are distributed under s. 75.36, with the remainder going to a former owner who used the property as a homestead in the five years before acquisition (s. 75.36(4)).
How buying works in Marathon County
Sales run through the Wisconsin Surplus platform when parcels list: register on the platform and bid under the batch terms. There is no county bidder registration during the foreclosure tracks themselves. Unverified flag: batch terms, deposits and buyer fees are set per listing and were not read from a county source for this record.
- The appraisal is the market's first opinion, and the floor. Under s. 75.69 a county cannot sell below appraised value, so the interesting Wisconsin parcels are the ones where the appraisal is stale, the property has changed, or two sale rounds have taught the county its floor is wrong. Research the parcel against the appraisal, not against the tax amount, which the buyer never sees as a price.
- Time is the real inventory cost. A parcel entering delinquency today reaches a county sale years later: certificate period, deed or foreclosure, appraisal, then the sale round. The buyers who do well in Wisconsin work the standing lists and repeat sales patiently instead of waiting for a single annual event that does not exist.
Terms: what a bid actually costs
| Deposit, Marathon County | Unverified: no Marathon County deposit terms were published in the sources read. Any deposit or buyer fee is set by the Wisconsin Surplus listing terms for the batch; read them before bidding. |
| Payment, Marathon County | Unverified at the county level in the sources read. The frame is fixed: the county sells land it already owns under ss. 75.35 and 75.69, and payment follows the listing terms and the county's approval of the sale. |
| What is sold | Tax-deeded land: real estate the county already owns, taken by tax deed, foreclosure of tax certificate, deed in lieu, or in rem judgment under s. 75.521 (s. 75.35(1)). You are buying land from the county, not a lien, and there is no certificate yield to model. |
| When you can buy | Only after the county holds title. The delinquency years, the certificate period (generally two years) and the deed or foreclosure process all happen before any public sale. A Wisconsin parcel cannot be bought early at any stage of that pipeline. |
| The price floor | Where the county sells under s. 75.69, no property may be sold for less than its appraised value. Counties that sell under s. 75.35 board-set terms may express the same discipline as a minimum bid or a listed appraised price; read the county's own terms, because the floor is the number every bid is measured against. |
| Redemption | Redemption belongs to the period before the county takes title: from the county treasurer while the certificate runs, until the deed is recorded on the tax deed route, or until the last day fixed in the in rem notice. Once the county holds title and sells, there is no redemption from the county's buyer. |
| The former owner's rights | Before the county sells, the former owner of a single-family owner-occupied property holds a statutory repurchase right the county board must provide by ordinance (s. 75.35(3)), on payment of the county's costs and the taxes that would have been owed. On a sale, proceeds are distributed under s. 75.36, and a former owner who used the property as a homestead in the five years before acquisition receives the remainder. |
| The deed | Conveyances are executed by the county clerk under the clerk's hand and the seal of the county (s. 75.35(2)(c)). Counties in this set convey by quitclaim deed as their standard practice; warranty deeds appear only by exception in individual records. |
Unsold and sliver parcels: a stated county problem
Marathon County's reporting is unusually candid about its leftover problem: small irregular sliver or orphan parcels that abut other properties, where the county has asked Corporation Counsel whether specific parcels can be transferred to adjacent owners in a targeted way, and parcels whose listings wait on appraisals, vacancy notices or eviction steps. Parcels that do not move stay in county inventory and return in later batches; the method of sale and any deed restrictions are tailored per parcel where the committee directs it.
Before you bid
- Forget the lien auction playbook. There is no certificate to buy, no rate to bid down and no redemption premium to collect in Wisconsin. Every number that matters sits on the land side: appraised value, condition, title after the county's acquisition, and the county's sale terms.
- Check the former owner's position before you price. The repurchase right and the proceeds rules mean some parcels come to sale with a former owner who can still act, and homestead proceeds follow the former owner after your purchase, not you. Read the county ordinance provisions for the parcel's sale round.
- Assume the sale calendar is a watch, not a date. Most Wisconsin counties in this set sell when inventory and appraisals are ready: standing lists, sealed bid rounds and platform auctions through the year. The pages that name no date are telling the truth about the system.
- Set the maximum before you bid. The free Max-Bid Calculator below works backwards from your exit value to the highest bid you can pay, with the costs shown.
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New York tax sales · Florida tax deed sales · Texas tax sales · Pennsylvania tax sales · Georgia tax sales · North Carolina tax foreclosure sales · Ohio tax foreclosure sales · Illinois tax lien sales · Michigan tax foreclosure sales · Arizona tax lien sales · California tax defaulted property sales · Colorado tax lien sales · South Carolina tax sales · Indiana tax lien sales · Tennessee delinquent tax sales · Missouri tax sales