NYC Tax Lien Sale Lists - BBL, Borough, Block & Lot

NYC Tax Lien Sale Lists

Every property on a New York City Department of Finance tax-lien sale list - the 10/30/60/90-day notices and final sales - with its Borough-Block-Lot, street address and tax class.

Low cost

Sale-list records: from $0.00005 per record, down to $0.00003 at Gold.

Property profiles (PLUTO-matched): $0.002 per profile, down to $0.0012 at Gold. A BBL PLUTO does not know is returned at the plain record price instead.

What you get

• saleMonth, cycle - the sale period and the notice stage (Final Sale, 90 Day Notice, ...). The source spells several stages both ways (90 Day Notice 63,185 rows and 90 Days Notice 18,907; same for 10/30/60), so a substring such as cycle="90 Day" catches both.
• borough / boroughName - code and name
• block, lot, bbl - the 10-digit Borough-Block-Lot key
• houseNumber, streetName, address, zip
• taxClassCode, buildingClass, communityBoard, councilDistrict
• waterDebtOnly - whether the listed debt is water-only
• In mode=profile also: plutoMatched, ownerName, plutoAddress, yearBuilt, residentialUnits, assessedTotal, plutoBuildingClass

Examples

The 50 most recent records:

{ "mode": "rows", "maxResults": 50 }

One property by BBL:

{ "bbl": "5080260130" }

Brooklyn, final sales only:

{ "borough": "Brooklyn", "cycle": "Final Sale", "maxResults": 100 }

Property profile for the 50 most recent lien records - owner, year built, residential units and assessed total joined from PLUTO by exact BBL:

{ "mode": "profile", "maxResults": 50 }

{ "mode": "profile", "borough": "Brooklyn", "maxResults": 100 }

Sale lists by cycle:

{ "mode": "aggregate", "groupBy": "cycle" }

By building class:

{ "mode": "aggregate", "groupBy": "buildingClass" }

Coverage and honest limits

• 264,142 rows, published per sale cycle rather than daily. The dataset's own last-updated stamp is 2025-12-01, and the most recent sale cycle is June 2025; no newer cycle had appeared when this was checked on 2026-10-30. Filtering and counts are unaffected.
• One run returns up to 5,000 records (maxResults); aggregate mode returns every group.
• 🔴 This is a notice list, not a ledger. The city does not publish the owner name or the amount owed in this dataset. Do not read a row as "what is owed".
• waterDebtOnly is returned as Y / N (the city spells the older cycles YES / NO; both are normalised). The waterDebtOnly filter with true keeps water-only rows; false (the default) applies no filter.
• One row per property per list. The same property can appear on several cycles and in several years.
• bbl is built from borough + zero-padded block (5) + lot (4). If a block or lot in the source is longer than that, bbl is left blank rather than truncated - use block and lot for those rows.
• sourceUpdatedAt is the city's last dataset update date.

Related

Also available in this account: Sonoma County Defaulted Property Taxes (bill-level default list for a California county) and NYC ACRIS Liens & UCC (UCC filings and federal tax liens recorded against NYC properties and debtors).