To buy delinquent tax properties, you register with the county office running the sale, research the parcel and any liens that might survive, bid at a public auction, and pay on the spot with certified funds. Depending on where the property sits, you may walk away with a deed to the real estate, a certificate representing the unpaid tax debt, or a hybrid interest that can convert into ownership later. The steps below cover what to check before you bid, what happens at the auction, and what you still have to do after you win.
Know What You Are Actually Buying
Local governments recover unpaid property taxes in one of three ways, and the model your county uses shapes everything else.
Tax Lien Certificates
In a tax lien sale, you are not buying the property. You are buying the government’s legal claim against it. The county issues you a certificate that entitles you to collect the debt from the owner, plus a statutory interest rate that varies widely by state — from as low as 8 percent annually to as high as 36 percent. If the owner pays within the redemption window, you get your money back with interest. If not, you may eventually have the right to foreclose and take title.
Tax Deeds
In a tax deed sale, the government has already foreclosed and is selling the property itself. You receive a deed, typically a quitclaim or limited-warranty deed rather than a general warranty deed. You acquire whatever interest the government held, without the guarantees of a traditional real estate purchase, and certain encumbrances or rights of redemption may still apply.
Hybrid Sales
Some jurisdictions blend the two. You initially buy a lien certificate that gives the owner time to pay. If the owner fails to redeem within the statutory period, usually six months to three years, you can then acquire a deed. You earn interest during the lien phase and secure the property if the debt goes unpaid.
Finding Properties Before the Auction
Most jurisdictions assign the county treasurer, tax collector, or sheriff’s office to manage the inventory of delinquent properties. These offices are legally required to publish notice of upcoming sales, which typically appears in a local newspaper for several consecutive weeks before the auction date. Many counties also maintain searchable online databases where you can filter by parcel number, address, or amount owed.
You can also request a physical copy of the delinquent property list from the clerk’s office, usually for a small fee. These lists include legal descriptions, owner information, and the amounts owed. Start monitoring listings several months before auction season in your target area so you have time for the research below.
Research Every Parcel You Might Bid On
Tax sale properties are sold as-is, with no warranties about their condition, title, or value. Four checks matter most.
Title Search
A title search reveals existing mortgages, judgment liens, and other encumbrances that might survive the sale. Professional title searches typically run between $75 and $500, with straightforward residential properties on the lower end. You can check the county recorder’s office yourself, but hiring a title company or attorney reduces the risk of missing something buried in the chain of title.
Drive-By Inspection and Zoning
You generally cannot enter a tax-delinquent property before the sale, but you can inspect it from the street. Look for visible structural problems, signs of occupancy, and environmental red flags like abandoned storage tanks or stained soil. Verify the property’s zoning classification with the local planning department. A vacant lot zoned for agricultural use may not support the residential development you had in mind.
Federal Tax Liens
A federal tax lien against the owner can survive a local tax sale under certain conditions. Under federal law, a local property tax lien generally takes priority over a federal tax lien, so the sale can proceed. But for the sale to actually discharge the federal lien, the IRS must receive written notice at least 25 days before the sale date.
Even with proper notice, the IRS retains a right of redemption. For liens arising under the internal revenue laws, the redemption period is 120 days from the date of sale or the period allowed under local law, whichever is longer. If the IRS was not properly notified, the federal tax lien stays attached to the property, and you take ownership subject to that debt. Check the county recorder’s office for any recorded notices of federal tax liens against the property or its owner before you bid.
Environmental Contamination
Under federal environmental law, the current owner of a contaminated property can be held liable for cleanup costs, even if the contamination happened decades before you bought it. You can protect yourself by qualifying as a “bona fide prospective purchaser,” which shields you from cleanup liability if you meet certain requirements: all contamination occurred before you acquired the property, you conducted an environmental assessment before buying, and you are not affiliated with anyone responsible for the contamination.
The standard assessment is a Phase I Environmental Site Assessment, which typically costs between $1,500 and $3,500. For a vacant residential lot the cost may not be justified. For a commercial or industrial parcel, skipping this step could expose you to cleanup costs that dwarf the purchase price. After buying, you must also take reasonable steps to prevent ongoing contamination and comply with any land-use restrictions to keep your protection.
Register and Get Your Money Ready
Registration forms typically require your legal name, taxpayer identification number or Social Security number, and a valid government-issued photo ID. Some jurisdictions require you to sign a statement confirming you do not owe delinquent taxes on other properties in the same county. Certain government employees, such as county auditors, treasurers, and assessors, are barred from bidding on properties in their own jurisdiction. Deadlines vary. Some counties require forms well before auction day; others allow same-day registration. A small non-refundable registration fee is common.
Most auction offices do not accept personal checks or credit cards. Bring certified funds: cashier’s checks, money orders, or a pre-arranged wire transfer. Some jurisdictions require proof of funds or a deposit before the auction starts to receive a bidding number. Confirm accepted payment methods with the conducting office before you show up, because the wrong form of payment means you cannot bid.
The winning bid is not your only cost. Plan for recording fees when you file the deed, court filing fees if you later foreclose on a lien (typically $50 to $500), a professional title search, a quiet title action, and possible environmental assessments. Factor these into your maximum bid.
Auction Day
Tax sales happen through live public auctions, online bidding platforms, or a combination. In a live setting, an auctioneer announces each parcel number and an opening bid, usually the total of unpaid taxes, penalties, and administrative fees. You signal your offer by raising your paddle or stating your price. Online auctions let you enter bids manually or set an automatic maximum.
Once your bid is accepted, you typically must pay immediately with the certified funds you prepared. If you cannot produce the money on the spot, you risk forfeiting the property and possibly being banned from future auctions. Some jurisdictions also impose a financial penalty on winning bidders who fail to complete the purchase.
After payment, the taxing authority issues either a certificate of purchase (for lien sales) or a tax deed (for deed sales). File this document with the county recorder’s office so your interest becomes part of the official land records. Processing can take several weeks.
Wait Out the Redemption Period
In many jurisdictions, the former owner has a window after the sale to reclaim the property by paying the full amount owed, including taxes, interest, penalties, and often the buyer’s costs. This redemption period varies widely, from as short as six months to as long as three years.
During that time, the former owner typically retains the right to occupy the property. You cannot evict them, make major alterations, or treat the property as fully yours until the period expires without redemption. If the owner redeems, you get your money back with the statutory interest, but you do not get the property.
If you bought a lien certificate rather than a deed, the redemption clock starts when you buy the lien. Only after it runs out can you begin foreclosure to convert your lien into ownership. That extra step can add months or years before you gain actual control.
Clear the Title
Owning the property and having marketable title are two different things. A tax deed gives you legal ownership, but most title insurance companies consider tax-sale titles high-risk and will not issue a policy without additional steps.
The standard remedy is a quiet title action, a court proceeding in which a judge confirms that the tax sale was conducted properly and your ownership is valid. The lawsuit names everyone who might have had a claim — the former owner, lienholders, and any other interested parties — and gives them a chance to respond. If no one contests, a court can enter final judgment in roughly 60 to 90 days. If a party cannot be located, service through newspaper publication typically adds about a month. Budget at least $1,000 to $3,000 in attorney fees and court costs for an uncontested case, with contested cases costing significantly more. Until you have a court order quieting title, selling the property through a conventional transaction or getting a mortgage on it will be difficult.
Even after a quiet title judgment, some title insurers include special exceptions on policies for tax-sale properties. Common exceptions cover the risk that the foreclosure judgment could be reopened within a certain period, outstanding federal redemption rights, or claims under bankruptcy law. These exceptions narrow over time; the risk of a reopened judgment typically expires one to two years after the final court order. If you plan to resell quickly, factor in that your buyer’s title company may require waiting periods before issuing a clean policy.
Removing Occupants Lawfully
If someone is living in the property when you acquire a tax deed, you cannot change the locks. You must follow the formal eviction process required by your jurisdiction:
- Serve the occupant with a written notice to vacate. The required notice period varies by jurisdiction.
- If the occupant does not leave, file an eviction case with the local court.
- Obtain an eviction order from a judge.
- Schedule the physical eviction through the sheriff’s office, which is the only party authorized to remove someone.
Never attempt a “self-help” eviction by shutting off utilities, removing doors, or removing belongings. Doing so can expose you to criminal charges and civil liability in virtually every jurisdiction. If the occupants have no legal right to remain, the process tends to move relatively quickly, but still expect several weeks from start to finish.
After You Own It: Taxes, Basis, and Surplus
Your tax basis in a property purchased at a tax sale is generally what you paid, plus certain settlement and closing costs. According to IRS guidance, you can add recording fees, legal fees for title search and deed preparation, transfer taxes, and owner’s title insurance. If you bought a lien certificate and later foreclosed, your basis includes both the amount you paid for the certificate and the costs of the foreclosure proceeding.
You are responsible for property taxes from the date you take ownership. Fall behind and you land in the same position as the prior owner. Keep detailed records of every expense — the purchase price, recording fees, title search, quiet title attorney fees, repairs, and ongoing taxes — because all of it factors into your gain or loss when you eventually sell.
One boundary worth knowing: if your winning bid at a tax deed sale exceeds the taxes, penalties, and fees owed, that surplus is not yours. In 2023, the U.S. Supreme Court unanimously ruled that a government cannot keep surplus proceeds beyond the tax debt, and the former owner (along with lienholders of record) has a legal right to claim those funds. Your ownership interest comes from the deed, not from the amount you bid over the minimum, and expect the surplus question to sometimes trigger disputes about the sale’s validity when you bid significantly above the tax debt.