Check whether a property is tax-delinquent before you bid. Free lookup for tax deed & lien investors — confirm delinquency, deal grade, and years behind across 529 counties with tax-delinquent data in 39 states. 3 free/day.
DelinquentNeighbor — The Delinquent Property Index
https://delinquentneighbor.com/
The Delinquent Property Index. Searchable. Public-record. Open to the neighborhood. Updated monthly from official county delinquent tax rolls across the United States.
How to Find Tax Delinquent Properties: 7 Data Sources (2026)
Jul 31, 2026 · How to find tax delinquent properties in 2026: 7 data sources serious investors use, from county treasurer lists to a centralized 343K-opportunity database.
Jul 5, 2026 · Where to find tax sale and delinquent property lists: free official county sources first, how to read them, and when a paid data tool is worth it.