To flip a foreclosed house, you buy a repossessed property at one of three points in the foreclosure cycle, pre-foreclosure, public auction, or from the bank as an REO listing, renovate it, and resell it for more than your total costs. Whether you make money comes down to three numbers: the purchase price, the repair budget, and how long you hold the property before resale. Every month of taxes, insurance, and loan interest chips away at the margin, so a disciplined timeline matters as much as a disciplined offer. What follows walks through the full cycle, including the legal risks that catch first-time flippers off guard.
Where Foreclosed Properties Come From
Foreclosures reach buyers at three distinct stages, and each one changes how you find, evaluate, and close on the home.
Pre-foreclosure begins when a lender files a notice of default or a lis pendens with the county recorder, creating a public record of the delinquency, the owner, and the outstanding debt. Investors who move fast can approach the homeowner directly and negotiate a short sale or private purchase, often with interior access and terms that no public sale offers.
If the default isn’t cured, the property goes to a public foreclosure auction at the courthouse or on a government-sanctioned online platform. Federal law requires the sale notice to be published in a local newspaper for three consecutive weeks beforehand, listing the time, location, and legal description.1Office of the Law Revision Counsel. 12 USC 3758 – Service of Notice of Foreclosure Sale County clerk websites and third-party listing services aggregate those notices.
Properties that don’t sell at auction revert to the lender and become Real Estate Owned, or REO. The bank holds title and usually lists the home on the MLS through a real estate agent, so these are the easiest to find. The tradeoff is price: the bank has already absorbed holding costs and wants to recover as much as possible, so REO asking prices generally exceed what the same property would have fetched at auction.
Running the Numbers Before You Bid
The research phase is where most flips are won or lost. A property that looks cheap at the sale price can become a trap if it carries hidden liens, needs more work than you budgeted, or sits where renovated homes don’t sell for what you expect.
Title Search and Lien Risk
A title search is the single most important piece of research you’ll do. A preliminary title report from a title company runs roughly $150 to $300 and reveals every recorded claim against the property: outstanding mortgages, mechanic’s liens from unpaid contractors, delinquent property taxes, and IRS tax liens. Missing one can mean inheriting thousands of dollars in debt the moment you take ownership.
Watch for homeowners’ association super liens. In roughly 23 states, HOA liens take priority over even a first mortgage up to a capped amount, typically several months of unpaid assessments. If the property sits in an HOA community, those arrears can survive the foreclosure sale and become your bill. Check before bidding and factor the delinquency into your offer.
After-Repair Value and the 70% Rule
Your maximum offer starts with the after-repair value, the price you expect to get after renovations. Pull comparable sales of recently renovated homes in the same neighborhood. A common industry formula sets your maximum purchase price at 70% of the after-repair value minus estimated repair costs. If comparable renovated homes sell for $200,000 and the property needs $30,000 of work, your ceiling is $110,000.
When you can’t get inside before buying, which is normal at auction, estimate repairs from the outside. Uneven rooflines, foundation cracks, and water staining around windows all signal expensive structural problems. Budget conservatively. A full kitchen renovation can run $15,000 or more, and a bathroom remodel typically costs $3,000 to $8,000. Add a contingency of 10% to 15% for surprises behind the walls.
How You’ll Pay for It
Foreclosure sellers, whether a courthouse auctioneer or a bank asset manager, don’t wait for traditional mortgage approvals. You need financing that closes fast, or cash.
Hard money loans are the most common tool. They’re short-term, typically 6 to 24 months, secured by the property rather than your credit. Interest generally falls between 10% and 18%, with origination fees of 1 to 4 points (each point equals 1% of the loan amount); most hard money lenders charge 2 to 3 points up front. Those costs are steep next to a conventional mortgage, which is why speed matters. Every extra month on the property adds another month of interest.
Whether you’re using cash or hard money, you’ll need a proof of funds letter before anyone takes your offer seriously. At auction, that’s usually a bank statement or lender letter confirming available capital. For REO offers, banks require proof of funds or a pre-approval attached to every bid.
Auction vs. REO: Which Path to Take
The two main acquisition paths have fundamentally different timelines, risks, and procedures. Which you choose depends on your risk tolerance and how quickly you can mobilize capital.
Buying at Auction
Most jurisdictions require advance registration: your name, the name of any entity you’re bidding under, and a government-issued photo ID. Many require a deposit or proof of funds to get a bidding number. Payment timelines after a winning bid are aggressive. Some jurisdictions demand the full purchase price within 24 to 48 hours; others allow up to 30 days but charge interest on the unpaid balance from the day of the sale. Acceptable payment is almost always a cashier’s check, certified check, or cash. Once you’ve paid, you receive a trustee’s deed or sheriff’s deed, which gets recorded with the county.
The biggest risk is that you’re buying as-is, usually sight unseen. No inspection, no repair negotiation, and anything you missed in the title search becomes your problem.
Buying an REO
Buying from the bank looks more like a traditional transaction, but the bank sets the terms. You submit an offer through a real estate agent, and the bank’s asset manager reviews it alongside competing bids. Banks use their own addendums that override standard state purchase agreements, and the property is sold strictly as-is.
Once an offer is accepted, escrow typically runs 15 to 30 days, shorter than a traditional sale because banks want these properties off their books. Earnest money of 1% to 3% goes into escrow until closing. You may get a limited window for a professional home inspection (generally $300 to $500 for a standard single-family home), but the bank almost never agrees to repairs or credits based on what it turns up.
At closing, the bank conveys title with a special warranty deed, which guarantees only that the bank itself didn’t create new liens during its ownership. It doesn’t guarantee a clean title stretching back further, which is why title insurance is worth every penny on an REO.
The Right of Redemption Can Undo Your Flip
This is the risk that blindsides new foreclosure investors. In roughly half of U.S. states, the former homeowner has a statutory right to reclaim the property after the foreclosure sale by paying the full sale price plus interest and certain expenses like property taxes. The redemption window ranges from a few months to over a year depending on the state.
The practical problem is obvious. If you buy at auction, pour $40,000 into renovations, and the former owner redeems, you may not recover your improvement costs. Some states allow reimbursement for necessary repairs, but many limit it to maintenance and preservation rather than upgrades. A $25,000 kitchen remodel doesn’t qualify as necessary preservation.
Check your state’s redemption rules before bidding at auction. In states with long redemption periods, many investors stick to REO properties, because the bank’s foreclosure process typically extinguishes the redemption right before the home hits the MLS. That’s one of the clearest arguments for paying more for an REO instead of gambling at auction.
Insuring and Renovating a Vacant Property
Standard homeowner’s policies don’t cover vacant properties, and most won’t cover active renovation work. If you close and start demolition without the right coverage, a fire or theft could wipe out the investment.
Builder’s risk insurance is designed for properties under construction or major renovation. It covers damage from fire, storms, vandalism, and in some cases theft of materials on site. Premiums depend on property value and renovation scope. Expect anywhere from $800 to $5,000, with minor cosmetic work on a lower-value property at the low end and structural work on a $500,000 property near the top. If you’re removing load-bearing walls or adding square footage, confirm the policy specifically covers structural work; many basic vacant-property policies exclude it.
Every contractor on the property should carry their own general liability insurance, typically at least $1 million per occurrence. If a worker is injured and the contractor is uninsured, you’re the one getting sued.
Clearing the Property and Keeping It Secure
If the property is occupied by a holdover resident, whether the former owner or a tenant, you’ll need to follow your state’s formal eviction process before any work begins. That usually means a written notice to vacate, then an eviction lawsuit if the occupant doesn’t leave. From notice to a court-issued writ of possession typically takes 30 to 90 days. Court filing fees generally run $50 to $400, plus a process server.
Once the property is empty, secure it immediately. Padlocks on all entry points, motion-activated exterior lighting, and visible cameras or alarm signage. Visit often. Vacant houses attract copper thieves, squatters, and arsonists.
Permits and Contractors
Any work involving plumbing, electrical, or structural changes requires municipal building permits. Skipping them to save time is a false economy. Unpermitted work can fail inspection at resale, delaying or killing your closing, and some buyers’ lenders won’t fund a mortgage on a property with open permit issues.
Hire licensed contractors and get everything in writing: scope, timeline, payment schedule, and a change-order clause. Pay on a milestone schedule tied to completed work rather than upfront lump sums. Track every expense against the original budget, and treat your 10% to 15% contingency as money you hope not to spend, not a second renovation fund.
Reselling: Mind the 90-Day FHA Rule
The resale is where you find out whether your purchase price, renovation budget, and timeline assumptions were right. Listing on the MLS gives you the widest exposure to buyers and agents.
Before you list, know the FHA 90-day flip rule. If you resell within 90 days of buying, any buyer using an FHA-insured mortgage is automatically disqualified. Federal regulations make the property ineligible for FHA financing when the resale date falls inside the 90-day window.2eCFR. 24 CFR 203.37a – Sale of Property FHA loans are extremely popular with first-time buyers, so cutting them out in many price ranges means cutting out a large portion of your market.
There’s additional scrutiny after that too. If you resell between 91 and 180 days and the price is at least double what you paid, the buyer’s lender must order a second appraisal.2eCFR. 24 CFR 203.37a – Sale of Property The rule has limited exceptions, including sales by government agencies, inherited properties, and new construction, but a standard flip doesn’t qualify.3HUD. Property Flipping Plan the renovation timeline with the 90-day floor in mind.
At closing, a title company or real estate attorney handles the paperwork. Your proceeds pay off any outstanding hard money loan first, then closing costs and commissions, and what remains is your net profit. The deed is recorded in the buyer’s name. Then comes the tax bill.
The Tax Bill Flippers Don’t See Coming
The IRS does not treat house-flipping profits like investment gains. If you buy properties intending to renovate and resell, the IRS classifies them as inventory held for sale to customers rather than capital assets.4Office of the Law Revision Counsel. 26 USC 1221 – Capital Asset Defined That single distinction changes your entire tax picture.
Because flipped properties are inventory, profits are taxed as ordinary income at your regular federal rate, which can run as high as 37%. On top of that, active flipping is treated as self-employment, triggering a 15.3% self-employment tax on net profit: 12.4% for Social Security and 2.9% for Medicare.5IRS. Self-Employment Tax (Social Security and Medicare Taxes) The Social Security portion applies to net earnings up to $184,500 in 2026.6Social Security Administration. Contribution and Benefit Base Above that threshold, you still owe the 2.9% Medicare portion on every dollar.
On a flip netting $60,000, that’s roughly $9,180 in self-employment tax alone before income tax. A flipper in the 24% federal bracket would owe another $14,400 in income tax on the same profit, plus any state income tax. Plenty of first-time flippers make money on the renovation and then lose a chunk of it to a tax bill they didn’t plan for.
If you’ve heard you can defer real estate gains by rolling them into another property through a 1031 exchange, that strategy doesn’t apply to flips. Section 1031 explicitly excludes inventory and property held primarily for sale.7IRS. Like-Kind Exchanges Under IRC Section 1031 A property bought, renovated over three months, and immediately listed is textbook inventory. The IRS weighs how many properties you’ve flipped, how long you held each one, and whether you advertised them for sale; a regular flipping operation checks every box for dealer status. Set aside 30% to 40% of your expected profit for federal and state taxes, and talk to a tax professional before your first flip rather than after.