Finding tax sale properties isn't hard once you know where to look. The challenge is knowing which sources to trust and how to get ahead of the competition. Most tax sales are public information... the trick is accessing it efficiently.
Here's exactly where to find tax sale properties in your county and how to use each source.
Start with Your County Tax Office
Every county in the US has a tax collector, treasurer, or revenue commissioner who handles delinquent property taxes. This is your primary source for tax sale information.
What to look for on their website:
- ›Delinquent tax lists — Most counties publish lists of properties with unpaid taxes. These lists come out weeks or months before the actual auction.
- ›Auction dates and rules — When the sale happens, registration requirements, deposit amounts, and bidding procedures.
- ›Property details — Parcel numbers, owner names, amounts owed, and sometimes assessed values.
You can find your county's tax office through our state pages. Start with your state... California, Texas, Florida, Illinois, Ohio, New York... and drill down to your county for contact information and tax deadlines.
Online Auction Platforms
More counties are moving their tax sales online every year. Here are the major platforms:
Bid4Assets (bid4assets.com) One of the largest online tax sale platforms. Hosts auctions for counties across the country. You can browse upcoming sales, view property lists, and bid from your computer. They charge a buyer's premium on winning bids.
GovEase (govease.com) Another major platform that handles online tax sales for dozens of counties. Clean interface and good property information. Registration is free but you'll need to provide a deposit.
RealAuction (realauction.com) Primarily used by Florida counties for tax certificate sales. If you're investing in Florida liens, you'll spend a lot of time here.
Zeusauction (zeusauction.com) Growing platform used by counties in several states. Worth checking if your target county isn't on the bigger platforms.
Grant Street Group (taxsale.com) Handles tax sales for counties in Pennsylvania, Indiana, and other states. County-specific sites but similar bidding interface.
Legal Notices and Public Records
State law typically requires counties to publish notice of tax sales in local newspapers. These legal notices include:
- ›Property descriptions
- ›Owner names
- ›Amounts owed
- ›Sale date and location
You can find these in:
- ›Local newspaper classified sections (often available online)
- ›County government websites under "legal notices" or "public notices"
- ›State press association websites that aggregate legal notices
Legal notices are useful because they sometimes include properties that haven't made it to the county website yet.
County Assessor and GIS Tools
Once you have a list of properties going to tax sale, the county assessor's office is your next stop. Assessor websites let you:
- ›Look up assessed values for each parcel
- ›View property characteristics (lot size, building details, year built)
- ›Check ownership history
- ›Find the property on a map
Most counties also have GIS (Geographic Information System) mapping tools that let you view parcel boundaries, aerial imagery, flood zones, and zoning designations. This is invaluable for due diligence without leaving your desk.
Using PropertyTaxDueDates as Your Starting Point
Here's a practical workflow for finding tax sale properties:
- ›Start on our state page — Find your target state and get the property tax due dates. Properties typically go to tax sale 1 to 3 years after the original due date passes.
- ›Visit the county page — Get the direct link to the county tax office, phone number, and key deadlines.
- ›Check the county website — Look for upcoming tax sales, delinquent lists, and registration requirements.
- ›Cross-reference on auction platforms — See if the county uses an online bidding platform.
- ›Research individual properties — Use the assessor's office and GIS tools to evaluate each parcel.
How Far in Advance Can You Find Properties?
The timeline varies by state and county, but here's a general guide:
- ›6 to 12 months before sale: Delinquent tax lists become available. Properties on this list aren't guaranteed to go to auction... many owners pay before the sale date.
- ›2 to 3 months before sale: The county publishes the official sale list. This is more reliable.
- ›2 to 4 weeks before sale: Legal notices appear in newspapers. Final list is usually locked in.
- ›Sale day: Some counties allow registration up to the day of sale. Others require advance registration.
The earlier you start researching, the more time you have for due diligence. Experienced investors start monitoring delinquent lists as soon as they're published.
Tips for Efficient Research
Cast a wide net. Don't limit yourself to 1 county. Check neighboring counties and even neighboring states. Less popular counties often have less competition and better deals.
Build a spreadsheet. Track every property you research with columns for parcel number, assessed value, amount owed, property type, your notes, and your maximum bid.
Set up alerts. Some online auction platforms let you set up email alerts for new listings. County websites sometimes offer notification services too.
Join investor forums. BiggerPockets and other real estate forums have active tax sale investing communities. Experienced investors often share tips about upcoming sales and county-specific quirks.
Call the county office. Sometimes the easiest way to get information is just picking up the phone. County staff are generally helpful and can tell you exactly when their next sale is, how to register, and where to find the property list.
Recommended Reading
- ›
Tax Deed Investing Step by Step — Walks through the entire process of finding and evaluating tax sale properties. Heavy on practical how-to steps rather than theory.
- ›
The Complete Guide to Investing in Real Estate Tax Liens and Deeds by Alan Northcott — Includes detailed chapters on research methods and finding the best properties before auctions. Good coverage of online platforms and county resources.
- ›
Real Estate Tax Lien Investing by Jeff Burrows — Focused on the research and analysis side of tax sale investing. Practical advice on building your property pipeline.