Annual Tax Lien Sale

Nassau County Annual Tax Lien Sale - 2026 

On February 17th, 2026, the Nassau County Treasurer will sell at public on-line auction the 2025 tax liens on certain real estate, unless the owner, mortgagee, occupant of or any other party of interest in such real estate shall have paid to the County Treasurer by February 12th, 2026, the total amount of such unpaid 2025 taxes or assessments with the interest, penalties and other expenses and charges against the property.

Important dates regarding the 2026 Tax Lien Auction are as follows:

  • January 21st, 2026 - Registration opens & bidding commences
  • February 4th, 2026 - Registration requirements deadline
  • February 6th, 2026 - 2025 subsequent tax deadline
  • February 12th, 2026 - Tax payment deadline
  • February 17th, 2026 - Tax Lien Auction and 10% deposit due
  • March 19th, 2026 - 90% balance deadline

To participate in the sale, registrants must first pay the registration fee ($175) place the required minimum deposit ($5,000) and submit a budget. Upon completion of the sale, 10% of the total purchase is immediately due by the end of the day.  The remaining 90% balance is due by 3:00pm March 19th, 2026.  Failure to pay the 10% deposit or 90% by the deadline will result in the forfeiture of your winning bids and loss of any deposits made.

To access the online auction site click the Annual Tax Lien Sale link below.  The auctioneer will be holding online webinars for bidder training before the sale, date(s) to be announced.  Click on the Bidder Training link below to view the schedule (link will be activated once dates are set.) To view the initial listing of available items click on the Advertising list of unpaid taxes to be sold in February 2026 link below (this file will be available in early January and is not updated.)  Monthly updated delinquent tax files can be viewed on the Treasurer’s Unpaid Tax Listings page.  Registered participants will have access on the auction site to a daily updated listing of open taxes.  

County Treasurer
David Y. Chiang

Annual Tax Lien Sale

Notice To Tax Lien Purchasers

Terms of Sale

Advertising list of unpaid taxes to be sold in February 2026

Bidder Training