To buy a house at auction, you research the property’s title and physical condition in advance, confirm the auction’s rules and deposit requirements with the trustee or auctioneer, show up with certified funds, and bid within a ceiling you set before the sale starts. Properties sell as-is with no interior inspection and no financing contingency, deposits are due the moment the gavel falls, and the balance is often due within 24 hours to 10 days. The chance to buy below market value is real. So is the risk of inheriting liens, losing the house to a redemption claim, or paying for repairs you never got to see.
Know Which Type of Auction You’re Bidding At
The type of sale controls what you’re actually buying, which liens survive, and what rights the former owner keeps.
At a foreclosure auction, a lender forces the sale after the borrower defaults. On the courthouse steps, the opening bid is usually the outstanding loan balance plus interest and legal fees. If the first mortgage holder is foreclosing, junior liens like second mortgages and judgment liens are generally wiped out. But if a junior lienholder is the one foreclosing, the first mortgage survives and you take the property subject to that debt.
At a tax deed sale, the local government sells the property itself to recover unpaid property taxes. You become the owner immediately, subject to any redemption period the former owner has under state law. Because property tax liens generally have automatic priority over mortgages, a tax deed sale can extinguish most other liens.
At a tax lien sale, the government sells a certificate representing the unpaid tax debt rather than the property. You earn interest on the certificate, and if the owner doesn’t pay you back within the redemption window, you can eventually foreclose and take ownership. Interest rates range from single digits to over 30 percent annually depending on the jurisdiction. The upfront cost is lower than a tax deed sale, but taking title takes longer and requires additional legal steps.
Do the Title Work Before You Bid
A professional title search is the single most important step before bidding. It pulls every recorded claim against the property: mortgages, judgment liens, mechanic’s liens, and unpaid tax obligations. Which of those survive the auction depends on their priority relative to the foreclosing party’s lien. Liens recorded before it generally survive and become your problem. Liens recorded after it are typically extinguished.
Property tax liens deserve special attention because they usually have automatic priority over all other liens, including first mortgages. Years of unpaid taxes can leave you owing thousands even if the mortgage debt was wiped out. In roughly 20 states and the District of Columbia, homeowners association assessments can create a “super lien,” a limited-priority claim that may take precedence over even a first mortgage for a set number of months of unpaid dues.
Federal Tax Liens and IRS Notice
If the former owner owed federal taxes, an IRS lien may be attached to the property. When the foreclosing party’s lien has priority over the federal tax lien, the sale can extinguish the IRS lien, but only if the IRS was given adequate notice before the sale. Without that notice, the federal tax lien survives and stays attached to the property no matter who now owns it.1Internal Revenue Service. Judicial/Non-Judicial Foreclosures
Even when the lien is properly extinguished, the IRS keeps a right of redemption. The federal government can buy the property back from you within 120 days of the sale date, or whatever longer period state law allows, by reimbursing your purchase price plus 6 percent annual interest and your out-of-pocket expenses on the property. For non-IRS federal liens, the redemption period extends to a full year.2Office of the Law Revision Counsel. 28 U.S. Code 2410 – Actions Affecting Property on Which United States Has Lien If any federal lien appears in the title search, confirm before bidding whether the foreclosing party gave the IRS proper notice.
See What You Can of the Property and Who’s In It
Interior inspections are rarely allowed. You’re limited to an exterior drive-by and what public records tell you: building permits, code violation history, and tax assessments listing square footage and structural details. Budget conservatively for repairs. You won’t know the full extent of the problems until you’re inside.
Check local zoning too. If you plan to convert the house into a rental or add a second unit, zoning restrictions or setback requirements could block those plans. A non-conforming structure may also be harder to insure or resell.
Find out whether anyone is living in the property. If it’s tenant-occupied, federal law requires you as the new owner after a foreclosure to give existing tenants at least 90 days’ notice before starting eviction, and if the tenant has a bona fide lease that predates the foreclosure notice, you generally have to honor the remaining lease term.3Office of the Law Revision Counsel. 12 U.S. Code 5220 – Assistance to Homeowners Some states go beyond that. If the former owner is still in the house, you’ll need to run your state’s formal eviction process, with court filings, service, and potentially months of waiting. Filing and process server costs generally range from about $50 to several hundred dollars, before any attorney fees. Bake all of this into your maximum bid.
The trustee, auctioneer, or selling agency on the public notice of sale is your source for last-minute updates. Auctions get postponed, opening bids get adjusted, and site rules change up to the morning of the sale. Call before auction day to confirm the date, time, location, deposit requirements, and accepted payment methods.
Bring the Right Money the Right Way
Most auctions require cashier’s checks or certified funds. Personal checks and cash are rarely accepted. At foreclosure auctions, expect to cover a deposit of 10 to 20 percent of your winning bid immediately after the sale, with the balance due within 24 hours to 10 days depending on the jurisdiction and auction type. Carrying multiple cashier’s checks in smaller denominations, say $5,000 or $10,000 increments, lets you hit the exact deposit amount without overpaying.
Miss the payment deadline and you lose the entire deposit, and the property gets relisted. There is no grace period.
Most foreclosure auctions and tax sales are cash-only. Some private auction companies and certain government-led sales allow financing, but you’ll need to show a pre-approval letter or proof of funds during registration. Without immediate access to the full bid amount, you can be disqualified before bidding starts.
At registration, you’ll complete a form with a government-issued photo ID and specify how you want to hold title. Common options include joint tenancy with right of survivorship, where co-owners automatically inherit each other’s share, and tenancy in common, where each owner’s share passes through their estate. Getting vesting wrong can create title problems later that may require a quiet title action costing anywhere from $1,500 to $5,000 and taking months.
Bidding Day Mechanics
At an in-person auction, you bid by oral declaration. Online auctions use a digital portal. Either way, each bid is a legally binding commitment to buy at that price if no one goes higher. No cooling-off period, no walking away once the auctioneer calls the property sold.
Private auction companies frequently charge a buyer’s premium, typically 5 to 10 percent of the sale price, added on top of your winning bid and paid to the auction house rather than applied to the purchase. A $200,000 bid with a 10 percent premium costs you $220,000. Government-run foreclosure sales at the courthouse steps generally don’t charge a premium, but confirm with the auctioneer before bidding. If a premium applies, subtract it from your maximum bid so you don’t blow past your budget.
Once the property is called sold, you present your deposit checks to the clerk on the spot. The sale then moves into the post-auction process while the auctioneer continues down the list.
After You Win: Deed, Taxes, and Insurance
The trustee or court issues a document confirming the transaction: commonly a trustee’s deed upon sale in non-judicial foreclosures, or a certificate of sale in judicial foreclosures that converts to a deed after any redemption period expires. Pay the balance within the deadline set at the auction. Miss it and you lose the deposit and the property.
Once paid in full and holding the deed, record it at the county recorder’s office where the property sits. Recording fees typically range from about $10 to $60 or more depending on the document and page count. Recording creates the public record of your ownership and protects you against future claims from the previous owner’s creditors.
Most states impose a transfer tax on real estate sales, including auction purchases, at rates ranging from as low as 0.01 percent of the sale price up to about 1.5 percent. Some jurisdictions split the tax between buyer and seller; others put it all on one party. Check the state and local rate before auction day.
Title insurance is harder to get on an auction property than on a traditional purchase. Title companies view foreclosure and tax sale properties as higher risk because of possible breaks in the chain of title, paperwork errors in the foreclosure process, or undiscovered liens. Some insurers will issue a policy only after a quiet title action resolves any defects. Others will issue coverage with specific exceptions for known risks. Build in extra time and money for this step. Lenders will generally require title insurance before financing improvements or a refinance.
Standard homeowners policies typically include a vacancy clause that limits or excludes coverage if the home sits empty for more than 30 to 60 days. Since many auction properties are vacant, you may need a vacant property policy covering fire, vandalism, weather damage, water intrusion, and liability. If you plan to renovate, a builder’s risk policy may fit better until the work is done. Secure coverage the moment the sale closes. You’re responsible for the property from that moment forward.
Many municipalities require owners of vacant properties to register with the local government and pay a fee. Registration ordinances typically require you to maintain the property to certain safety standards, keep it secured, and provide a local point of contact. Fines for failing to register can accumulate daily. Check with the local building or code enforcement department right after the sale.
Redemption Rights That Can Reverse the Sale
In many states, the former owner has a legal right to reclaim the property after the auction by paying your purchase price plus a statutory premium. This right applies even after you’ve paid in full and received a deed. Redemption periods vary widely, from as little as 180 days in some states to up to two years in others. The premium often ranges from 25 to 50 percent depending on the jurisdiction and how long the former owner waits to redeem.
During the redemption period, you legally own the property, but your ownership is conditional. You can generally collect rent and make necessary repairs, but heavy renovation carries risk. If the former owner redeems, you may not recover all your improvement costs. Title insurance companies are also reluctant to issue standard policies on properties still within a redemption window, which can make it hard to resell or refinance until the period expires.
The IRS has its own redemption right on properties that carried federal tax liens, described above. At tax deed sales, redemption rules depend entirely on state law. Some states allow no redemption at all once the deed transfers; others provide windows similar to those in foreclosure sales. Research the specific redemption rules in the jurisdiction where the property sits before you bid.