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Two features of the New Castle County system are easy to miss. First, county tax sales carry a prequalification layer: under section 8726 of Title 9 and county ordinance, the Sheriff's Auction Rules state a prequalification requirement for New Castle County tax sales only, and the winning bidder of a county tax sale, identified by an asterisk in the address on the sale list, must also submit Part 1 and Part 2 forms and a 50 dollar payment in accordance with the county ordinance. Second, the final bid at a county monition sale is subject to approval or disapproval by the Department of Finance or the chief county financial officer under section 8726, for any public purpose or reason stated in that section, where the sale notice so provides; if the bid is not approved, the county may expose the property to another and as many succeeding sales as it chooses. A protection added in 2025 also matters here: under section 8701(d), added by Chapter 134 of Volume 85 of the Laws of Delaware, a New Castle County taxpayer who enters and complies with an authorized payment plan for county and school taxes on residential property for the 2025 to 2026 tax year may not be subjected to a monition, a writ of venditioni exponas, or a sheriff sale for those taxes.
Selling office: New Castle County Sheriff's Office, Louis L. Redding City/County Building, 800 N. French Street, 5th Floor, Wilmington, DE 19801, phone (302) 395-8450.
Next sale: Sheriff sale, Tuesday, December 8, 2026, 9:00 a.m., City/County Building, Wilmington. Sheriff sales of real estate are held at 9:00 a.m. on the second Tuesday of each month. The sale on Tuesday, November 10, 2026 is the current sale; its published poster list contains three monition posters, each for a Wilmington property and each stating that the sale is subject to the approval of the Director of Finance of the City of Wilmington under section 113 of Title 22, which marks them as City of Wilmington sales rather than county sales. The next monthly sale day is Tuesday, December 8, 2026. Whether a given monthly list contains county monition properties depends on the praecipes the Office of Finance has filed.
Second Tuesday of every month at 9:00 a.m.; the next sale day after the November 10, 2026 sale is Tuesday, December 8, 2026. Watch the sheriff sales page and the current poster list, which state the writ type for each property, to see whether county monition properties are in a given month.
| Next sale | Sheriff sale, Tuesday, December 8, 2026, 9:00 a.m., City/County Building, Wilmington |
| Seller | New Castle County Sheriff's Office, City/County Building, 800 N. French Street, 5th Floor, Wilmington, phone (302) 395-8450 |
| 2026 sale | Sheriff sales at 9:00 a.m. on the second Tuesday of every month, City/County Building, 800 N. French Street, Wilmington; monition sales are 100 percent due at the time of sale |
| Registration | Sale day registration from 7:30 a.m. to 9:15 a.m., with government photo identification, verification of 10,000 dollars in certified funds, and a signed bidder auction rules form; county tax sales also carry the county prequalification requirement |
| The list | Published per sale on the county sheriff sales page as the sale list and the current sheriff sale poster list, by parcel and address, with the writ type stated for each property |
| Leftover channel | Excess proceeds held by the Sheriff's Office; if unclaimed after 90 days, paid to the Prothonotary for escrow and listed on the Superior Court Project Rightful Owner pages |
| Format | Tax sales are monition sales under Subchapter II of Chapter 87 of Title 9 of the Delaware Code, sections 8721 to 8733. The county tax collecting authority, the Office of Finance, files a praecipe in Superior Court, the sheriff posts the monition on the property, and after a writ of venditioni exponas issues the property is exposed to public sale at the county sheriff sale, held at 9:00 a.m. on the second Tuesday of every month in the City/County Building, 800 N. French Street, Wilmington. Monition sales are 100 percent due at the time of sale. The current poster list is for Tuesday, November 10, 2026; the monition posters in that list are City of Wilmington sales, as the Wilmington record in this set explains, and county monition sales use the same monthly sale day when the county files them.: In person public sale by the New Castle County Sheriff. No online bidding platform is used. The sale list and the poster list for each sale are published on the county sheriff sales page, and a printed list may be purchased at the Sheriff's Office for 20 dollars by money order or cashier's check. |
| Selling office | New Castle County Sheriff's Office, Louis L. Redding City/County Building, 800 N. French Street, 5th Floor, Wilmington, DE 19801, phone (302) 395-8450. |
Sources: New Castle County, Sheriff Sales. New Castle County, Current Sheriff Sale Poster List. New Castle County, Sheriff Auction Rules and Bidder Registration. Delaware Code Online, Title 9, Chapter 87, Subchapter I, General Provisions. Delaware Code Online, Title 9, Chapter 87, Subchapter II, Monition Method of Sale. Delaware Superior Court, Project Rightful Owner. 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.
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 New Castle, searchable by address, owner, or county, including parcels that never reach a sale list.
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All bidders must register before the start of the sale. Registration begins at 7:30 a.m. on sale day and closes at 9:15 a.m. A bidder number is issued on completion of the bidder registration form and signing of the bidder auction rules, on presentation of a current government photo identification, a current phone number and email address, and verification of 10,000 dollars in certified funds with a checkbook to pay the balance of the deposit. No bids are accepted from an unregistered bidder. County tax sales only carry an additional prequalification requirement under county ordinance, and a bidder certificate under section 8726 of Title 9 where the sale notice so indicates.
| Deposit, New Castle | 10,000 dollars in certified funds, by cashier's check or money order, is required at registration to receive a bidder card for all real estate sheriff sales, effective March 11, 2025, and is collected only if the bidder is the winning bidder. Cash is not accepted. The balance of any deposit is paid by personal or business check. For a monition sale the deposit is the full purchase price, because monition sales are 100 percent due at the time of sale. |
| Payment, New Castle | Monition (tax) sales are 100 percent due at the time of sale; the Sheriff's page states the full purchase price at the time of sale in each monition poster. By contrast, mortgage and judgment sales take a 20 percent deposit at the sale with the balance due on or before the third Monday of the month following the sale. Sales are final and deposits are non refundable, and a late payment fee of 500 dollars is charged where final payment is made after the specified due date. Confirmation of all sheriff sales occurs on the Friday following the third Monday of the month following the sale, and a property not deeded within six months after confirmation is returned to Superior Court under the Sheriff's stated policy. |
| What is sold | The real estate, by tax parcel, at a sheriff sale under a writ of venditioni exponas. A monition purchase is not the purchase of a tax lien, as the Sussex County Sheriff states expressly. |
| The judgment | Entered on a special judgment docket in Superior Court on the tax collecting authority's praecipe, for the taxes due as billed (section 8722 of Title 9); the monition and writ add accrued penalty and the costs of the proceeding (sections 8723 and 8725). |
| The tax lien | Taxes are a lien on the real estate for 10 years from July 1 of the year levied, continuing until the tax is collected while the assessed owner still owns the property; in Kent and Sussex Counties the lien has priority over all other liens (section 8705). |
| The monition | A warning issued by the Prothonotary to the sheriff and posted by the sheriff on a prominent part of the property, returnable within 10 days. Unless the judgment is paid within 20 days after its date, the authority may proceed to sell (sections 8723 and 8724). |
| The sale | A public sale by the county sheriff on the county's published sale day: the second Tuesday of every month in New Castle County, the last Tuesday of January, April, July and October for monitions in Kent County, and the third Tuesday of every month in Sussex County. The full purchase price is due on the day of sale in all three counties. |
| Finance approval and bidder certification | Where the sale notice so provides, the county finance authority may approve or disapprove the final bid for any public purpose or reason, and may require bidders to certify that they own no other county property with past due amounts over 1,000 dollars or long vacant without a permit; if a bid is disapproved, the property may be re exposed to succeeding sales (section 8726). |
| Confirmation | On the return of the writ the Superior Court inquires into the regularity of the proceedings and either approves the sale or sets it aside (section 8731). The redemption clock does not start until approval. |
| Redemption | Within 60 days from the day the sale is approved by the Court, the owner or the owner's legal representatives may redeem by paying the purchaser the purchase price and 15 percent in addition, together with all costs; if the purchaser cannot be found in the county or refuses the money, it is paid into Court (section 8729). From a City of Wilmington sale the premium is 20 percent plus required repair costs, under section 4-148 of the Wilmington City Code. |
| The deed and the title | No deed is automatic. If the property is not redeemed, the purchaser petitions the Superior Court for an order directing the sheriff to execute and deliver a deed (section 8728). The sale vests all the right, title and interest of the person assessed and of the owners, freed and discharged from liens and encumbrances (section 8727). |
| Surplus | Subchapter II states no surplus section. Proceeds above the judgment and costs are held for those entitled: in the published New Castle County practice, excess unclaimed after 90 days at the Sheriff's Office is paid to the Prothonotary for escrow and listed on the Superior Court Project Rightful Owner pages. In the Subchapter IV channel, any excess over the tax, costs and expenses of sale is paid at once to the owner (section 8779). |
| The leftover channel | There is no leftover list. If the finance authority disapproves the final bid, the property may be exposed to another and as many succeeding sales as the authority chooses (section 8726), and a sale set aside by the Court in the Subchapter IV channel may be followed by another sale, and so on until the tax due be collected (section 8773). |
| County purchase at the sale | Under section 8753 of Title 9, in the attachment subchapter for New Castle County, County Council may authorize a person to bid at a sale of real estate under Chapter 87 and take title in the name of New Castle County, but may not authorize a bid in excess of the aggregate amount of all taxes, service charges, penalties and obligations due to the county, including costs incurred in the collection process. |
If the Department of Finance or the chief county financial officer does not approve the final bid at a monition sale, section 8726 of Title 9 allows the property to be exposed to another and as many succeeding sales as the county chooses; there is no separate leftover list or discount channel. On proceeds, lien holders and homeowners are expected to contact the Sheriff's Office to determine whether proceeds remain after the costs of the sale have been distributed; if excess proceeds remain unclaimed after 90 days, they are distributed to the Prothonotary of New Castle County for placement in escrow and listing on the Superior Court Project Rightful Owner website.
One page per jurisdiction, each verified against the county's or the city's own publications and the current text of 9 Del. C. chapter 87. Delaware has exactly three counties, and the City of Wilmington runs a verified monition channel of its own under 22 Del. C. section 113 beside the New Castle County sale; this set is the whole state.
The free Max-Bid Calculator works backwards from your resale price to the highest hammer bid you can pay, with the fees shown line by line.
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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 and Louisiana tax sales, and the proven New York season, with the live membership, sits in the NY tax sale hub.
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