Ontario County tax sale, 2026 season

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Ontario County (county seat Canandaigua) sells its tax foreclosed real estate online only through Auctions International, on the OntarioCoAuction.com sale site, for the Ontario County Treasurer. The 2026 auction opened Wednesday, May 13, 2026 and lots started closing Wednesday, May 27, 2026. The registration packet was due by Monday, May 25, 2026 at 4:00 PM, while bidding was open.

The most useful date on this page is a future one. The next foreclosure cycle is already in County Court: the Treasurer filed the petition on July 2, 2026, and the last day to redeem in that cycle is Friday, January 15, 2027. No auction from that cycle can happen before that date, and the county has published no 2027 auction date. Anyone telling you this county sells every spring on a fixed date is ahead of the record: the cycle before last ran its payment deadlines in late August.

Dates and deadlines

Last sale, opened	Wed, May 13, 2026 · 12:00 PM 2026-05-13
Last sale, closings began	Wed, May 27, 2026 · 10:00 AM 2026-05-27
Registration packet deadline	Mon, May 25, 2026 · 4:00 PM 2026-05-25
Format	Online only
Platform	Auctions International, at OntarioCoAuction.com
Selling office	Ontario County Treasurer, 20 Ontario Street, Canandaigua
Next cycle	Foreclosure petition filed Thu, Jul 2, 2026; redemption in that cycle runs to Fri, Jan 15, 2027 2027-01-15. No 2027 auction date announced.

Sources: the official auction catalog for the 2026 sale (Auctions International). the county foreclosure petition legal notice for the next cycle (Finger Lakes Times legal notices). Confirm with the county or the auctioneer before relying on any date on this page: sales move, terms change, and parcels get pulled.

Research Ontario 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 Ontario County, searchable by address, owner, or county, including parcels that never reach a sale list.

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How New York tax foreclosure works

Unpaid taxes become a lien on the property, and the county enforces that lien in court under Real Property Tax Law Article 11, the in rem foreclosure process.
The owner gets a redemption period, two years from the lien date by default, longer where a local law extends it for homes or farms. Paying everything owed during that window ends the case.
When the period expires, the court can award the property to the county. The former owner's right to redeem is over at that point; there is no post-sale redemption period on a New York tax deed.
The county then sells at public auction, which is the sale this page tracks. Deeds are usually quitclaim, bids can require county legislature approval, and any surplus over the taxes and charges is handled under RPTL sections 1195 to 1197 for the former owner and lienholders.

How registration works

Registration ran online on the auction site, with the online bidder registration packet due by Monday, May 25, 2026 at 4:00 PM, two days before lots began closing. The same packet pattern is expected for the next cycle, but the deadline for that cycle will be set in its own catalog, which is not published yet.

Terms: what a bid actually costs

The 2026 catalog published the buyer premium. The deposit schedule and balance deadline for 2026 sat in the auction's full terms booklet, which was not among the sources retrievable on the check date, so they are stated as unpublished here rather than copied from the 2025 cycle.

Buyer premium	8.77 percent of the bid when paid by credit card (Visa, Mastercard, Discover); 6 percent when paid by cash or certified funds. Published in the 2026 auction catalog.
Deposit or down payment	Not published in the sources checked. The full terms booklet for the cycle governs.
Balance due	Not published in the sources checked.
Deed type	The county's sales convey by quitclaim deed under its standard auction terms; the 2026 booklet itself was not retrieved on the check date, so confirm the deed and recording terms in the next cycle's booklet before bidding.

Before you bid

Parcel level warnings matter in this county's catalog: in 2026 at least two lots were marked removed from the auction inside the list, and individual lots carried stop-and-read flags. Check the live catalog on the morning your lot closes, not a saved copy. For the next cycle, the date to plan around is January 15, 2027, the redemption deadline in the pending foreclosure: owners who pay by then keep their property, and no parcel list for that cycle exists until the court process finishes. Verify the live terms before you go. Note that search results for this county are heavily polluted by Ontario, Canada tax sales, which run under a different statute entirely and do not apply here.

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