Land · Wyoming tax sale guide

Natrona County tax lien sales, Wyoming

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For 2026 the county gave each registered buyer the chance to reserve up to 10 extra numbers besides their own, at 20 dollars each, and the office planned to contact buyers on September 1 and September 2, 2026 for payment for those extra numbers and to tell them their numbers. The lottery itself was set for September 3, 2026 in the Treasurer Office, with lists available for pickup in the office after noon that day for buyers unable to use email. The county requires a current W-9 form for each lienholder and will not issue certificates of purchase until the W-9 is received. Its frequently asked questions page also notes that the office sends over 40,000 tax notices each year and that this sale usually takes place in August or September.

Selling office: Natrona County Treasurer, Property Tax, 200 N. Center, Room 130, Casper, WY 82601, Phone: 307-235-9470

Next sale: The lottery part of the 2026 annual tax sale was held in the Treasurer Office on September 3, 2026.. The county Tax Sale page headed Registration for our 2026 annual tax sale has closed, gives the September 3, 2026 lottery date, and says to check back in summer 2027 for registration information on the next tax sale.

Registration information for the next sale is expected in summer 2027. Register before the close, keep a current W-9 ready, and watch email closely on lottery day because the keep or decline response is due by 5:00 pm.

Dates and deadlines

Sources: Tax Sale Registration 2026 Closed, Natrona County. Treasurer Frequently Asked Questions, Natrona County. 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 Natrona 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 Natrona County, searchable by address, owner, or county, including parcels that never reach a sale list.

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How Wyoming tax lien sales work

• Taxes fall delinquent in halves. Half the tax is payable November 10 and the rest the following May 10; a balance left unpaid bears interest at 18 percent per annum until paid or collected, and taxes on real property are a perpetual lien against everyone but the United States and the state (W.S. 39-13-108(b) and (d)(i)).
• The treasurer advertises the sale. Notice of the sale runs by publication once a week for three weeks in a legal newspaper in the county, the first publication at least four weeks before the day of sale and before the first week in September; where the county has no legal newspaper, the notice is posted at the courthouse door and in three public places at least 30 days ahead (W.S. 39-13-108(e)(ii)(A)).
• The sale is held at the courthouse. Sales run at the county courthouse or county building between 9 a.m. and 5 p.m. and continue from day to day, Sundays excepted, until all the land is sold. There is no bidding on price: any person who offers to pay the whole amount of taxes, interest, penalties and costs due on a parcel is the purchaser, and the purchaser pays on the spot or is disqualified and the parcel is offered again (W.S. 39-13-108(e)(iii)(A) and (B)).
• A certificate of purchase issues. On payment of the certificate fee the treasurer makes out and delivers a certificate of purchase describing the property and the taxes and costs paid; the certificate may be assigned by endorsement, and the holder takes subject to any special assessments for local or public improvements (W.S. 39-13-108(e)(iii)(C) and (E)).
• Redemption runs four years. The owner redeems at the treasurer by paying the amount for which the property sold, a penalty of 3 percent, interest at 15 percent per annum, and a redemption fee; a purchaser who pays later taxes on the parcel earns the same 15 percent on those payments (W.S. 39-13-110).
• The deed window opens at four years and closes at six. A holder applies to the treasurer for a tax deed not less than four nor more than six years from the date of the original sale, proving the statutory notice: personal service at least three months before the application on anyone in actual possession and on the person in whose name the property was taxed, or publication once a week for three weeks on the statutory timing, plus certified or registered mail to the record owner and any mortgagees (W.S. 39-13-108(e)(v)).
• The county path runs beside the private one. Property nobody buys is bid in for the county; the commissioners may sell and assign a county certificate at public or private sale at any time, and four years after the sale the treasurer deeds unredeemed county parcels to the county itself, on at least 60 days notice from the county clerk, after which the commissioners may sell the land at private sale (W.S. 39-13-108(e)(iii)(D) and (e)(iv)).

How buying works in Natrona County

Registration for the 2026 sale has closed, and after registration has closed you cannot register for the sale that year. Buyers must provide a correct phone number and email address so the Treasurer Office can contact them before the sale. A buyer may have up to 10 extra numbers besides their own at 20 dollars each. Each lienholder must supply a current W-9 form.

• Where buying happens At the county treasurer sale each summer. The day, the room, and the registration rules are the county's own, and each county page on this site names them from that treasurer's published pages.
• No auction in price The amount due is the price, set by the statute. Where two buyers want the same parcel, the treasurer's published rules decide who pays: several Wyoming counties draw lots or work down a rotation of registered buyers. The registration statement at the top of each county page carries the rule that county publishes, or says plainly that the county does not publish one.
• Payment is immediate A purchaser who does not pay the treasurer all amounts due at once is disqualified, and the parcel is offered again on the spot (W.S. 39-13-108(e)(iii)(B)). Accepted payment forms differ by county and are stated on each county page.

Terms: what a bid actually costs

Parcels that receive no bids

Apart from the redraw pool for drawn properties a buyer does not confirm by 5:00 pm on lottery day, the county tax sale page does not publish what happens to parcels nobody purchases, and it does not publish a later sale or assignment practice for county held certificates. Under Wyoming law a parcel nobody buys is bid in for the county, the treasurer deeds unredeemed county held certificates to the county four years after the sale, and the commissioners may then sell that land at private sale.

Before you bid

• Recheck the list on sale morning Owners redeem and parcels are pulled right up to the sale. The list in the newspaper notice is the starting list, not the final one; work from the treasurer posted list and expect it to shrink.
• Price the wait, not just the rate The certificate pays 15 percent plus the 3 percent penalty only if the owner redeems. If nobody redeems, the money is out for at least four years before a deed can be applied for, and the application window closes at six years from the sale.
• Know what the deed gives you A treasurer deed is prima facie evidence of title and entitles the grantee to possession, but it is subject to special assessments, and an action to recover property sold for taxes may be brought within six years after the sale. Budget for your own title work on any parcel that matters (W.S. 39-13-108(e)(vii)).

Every Wyoming county in this set

One page per county, each verified against the county's own publications and the current text of W.S. 39-13-108 and 39-13-110. Wyoming treasurers sell liens county by county each summer; this set is the 10 largest counties.

• Laramie County tax lien sales
• Natrona County (this page)
• Campbell County tax lien sales
• Sweetwater County tax lien sales
• Albany County tax lien sales
• Park County tax lien sales
• Sheridan County tax lien sales
• Fremont County tax lien sales
• Teton County tax lien sales
• Lincoln County tax lien sales

Keep going

Once a deadline puts you in a sale, the Land Investor Due Diligence Toolkit is the checklist and bid worksheet to run on each parcel before you bid. The same desk runs 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, Wisconsin tax deed sales, Missouri tax sales, New Jersey tax lien sales, Maryland tax lien sales, West Virginia tax sales, Virginia tax sales, Oklahoma tax resale, Kansas tax foreclosure sales, Arkansas tax-delinquent land sales, Alabama tax sales, Kentucky certificate of delinquency sales, Mississippi tax land sales, Nevada tax deed sales, New Mexico delinquent property tax sales, Iowa tax lien sales, Nebraska tax certificate sales, Minnesota tax-forfeited land sales, Utah final tax sales, Washington tax foreclosure sales, Oregon tax foreclosure sales, Connecticut tax sales, Massachusetts tax title sales, Rhode Island tax sales, Vermont tax sales, New Hampshire tax lien sales, Maine tax lien sales, Delaware tax sales, Louisiana tax sales, Idaho tax deed sales, Montana tax lien assignments, Wyoming tax lien sales and South Dakota tax certificate sales, and the proven New York season, with the live membership, sits in the NY tax sale hub.