What this page is: a persistent profile of how Nassau County, New York runs its tax sale, independent of any single year's date. For the specific upcoming sale with a confirmable date, see the event page linked below.
Nassau County, New York Tax Sale, County Hub
Nassau County, New York runs a lien sale via Nassau County Treasurer (nassau.newyorktaxsale.com). Held on an annual cycle; the specific date is set and published by the county each year rather than falling on a fixed statutory day.
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Legal structure & statutory basis
NY RPTL Art. 11 + county tax acts
Enforcement varies widely by county: many run tax-deed foreclosures, some (Suffolk) have the county buy all liens, and a few (Nassau) run a genuine retail lien-certificate auction with bid-down interest set by local code.
County contact / official source
Nassau County Treasurer (nassau.newyorktaxsale.com) is the office/platform of record for this sale.
https://www.nassaucountyny.gov/527/Annual-Tax-Lien-SaleSale history
We currently track one active cycle for Nassau County at a time and don't yet maintain a distinct archive of past sale events for this county -- when a cycle closes, the record here reflects the newest tracked cycle rather than an appended history. This is a known gap in the dataset, not a claim that Nassau County has held only one sale.
Tracked sale event
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