Due Diligence Checklist for Tax Sale Properties

Due diligence is what separates profitable tax sale investors from people who lose money. A $500 tax lien on a worthless property is still a bad investment. A $15,000 tax deed on a contaminated lot is a disaster.

This checklist covers everything you should verify before bidding on any tax sale property. Print it out, bookmark it, refer to it every time.

The Essential Checklist

1. Verify the Property Exists and Has Value

This sounds obvious, but it catches beginners all the time. Before anything else:

›Look up the parcel on the county assessor's website. Get the assessed value, lot size, and property description.
›Find it on Google Maps and Street View. Verify the location, access roads, and general condition. If Street View isn't available, that's a warning sign... it might be in a very remote area.
›Check the county GIS system. Verify parcel boundaries, zoning, flood zone status, and any easements.
›Compare assessed value to market value. Assessed values can be outdated. Check recent sales of comparable properties in the area using Zillow, Redfin, or the county recorder's office.

A property assessed at $50,000 in a neighborhood where similar homes sell for $80,000 is interesting. A property assessed at $5,000 in the middle of nowhere... probably not worth your time.

2. Check for Other Liens

Tax sales don't always wipe out all liens. Depending on the state and type of sale, certain liens can survive and become your problem:

›IRS federal tax liens. The IRS has a 120 day right of redemption after tax sales. Check for federal liens at the county recorder's office.
›State tax liens. Some states have similar protections for state tax debts.
›Municipal liens. Code enforcement fines, demolition liens, and special assessments may survive a tax sale in some jurisdictions.
›HOA/condo association liens. These sometimes survive tax sales, especially in Florida.
›Environmental liens. If the EPA or state environmental agency has placed a lien, it almost certainly survives a tax sale. Run... do not walk... away from these.
›Utility liens. Water and sewer liens may or may not survive depending on the jurisdiction.

How to check: Visit the county recorder's office (in person or online) and search for all recorded documents against the parcel number. Some counties have online search tools. For IRS liens, you can also search the county's UCC filing records.

3. Inspect the Physical Property

If the property is within driving distance, go look at it. If not, do everything you can remotely:

›Is there a structure? What condition is it in? Is the roof intact? Are there signs of damage or neglect?
›Is it occupied? Buying an occupied property means dealing with eviction, which adds cost, time, and legal complexity.
›Are there environmental red flags? Look for abandoned fuel tanks, chemical stains, unusual odors, or industrial debris. Old gas stations, dry cleaners, and industrial sites are common environmental hazards.
›How's the access? Is there road access? Is it a landlocked parcel? Can you physically get to the property?
›What's the neighborhood like? A great deal on a property in a declining area might not be a great deal after all.

4. Research the Title

Title issues are the most expensive surprise in tax sale investing:

›Chain of title. Who owned the property and when? Are there any breaks in the chain that could cloud the title?
›Deed restrictions. Are there covenants that limit what you can do with the property?
›Easements. Are there utility easements, access easements, or other encumbrances?
›Prior tax sales. Has this property been through a tax sale before? If so, was the title properly conveyed?

For tax deed purchases, plan on filing a quiet title action after you buy. This typically costs $1,500 to $3,000 and takes 2 to 6 months. Until you have a clear title, you can't get title insurance, and without title insurance you'll have trouble selling or financing the property.

5. Understand the Specific Auction Rules

Every county does things slightly differently:

›What type of sale? Lien or deed? Premium bid or bid-down-the-interest?
›What's the starting bid? Is it the delinquent taxes only, or does it include penalties, interest, and fees?
›Is there a buyer's premium? Online platforms often charge 5% to 10% on top of your winning bid.
›What's the deposit requirement? Some auctions require deposits of $500 to $5,000 to register.
›What payment is accepted? Many auctions require certified funds. Know the deadline for payment after winning.
›Is there a redemption period? Even in deed states like Texas, some sales have redemption periods.

6. Calculate Your Maximum Bid

Before the auction, know your ceiling:

For tax liens:

›What interest rate makes this investment worthwhile? If your state allows 18% and you bid down to 3%, is that still worth your locked-up capital?
›Factor in subsequent taxes you'll need to pay to protect your position.
›What's the property worth if you end up foreclosing? Is it worth more than your total investment?

For tax deeds:

›What's the after-repair value of the property?
›Subtract estimated repair costs.
›Subtract closing costs, quiet title costs, holding costs, and your desired profit margin.
›That's your maximum bid.

Never go to an auction without a maximum bid for every property on your list. Auction excitement leads to overbidding.

Red Flags That Should Make You Walk Away

›Assessed value less than $5,000
›No road access (landlocked)
›Environmental contamination (current or historical)
›Active bankruptcy filing by the owner
›IRS lien exceeding 50% of property value
›Structure in condemned or uninhabitable condition
›Property in a flood zone without a structure worth insuring
›Unclear or disputed boundaries