Seller financing works by turning the property owner into the lender: instead of the buyer getting a mortgage from a bank, the seller accepts a down payment at closing and carries the rest of the purchase price as a private loan secured by the home. The buyer takes possession, makes monthly payments to the seller with interest, and the loan is documented with a promissory note and a lien recorded against the property. It comes up most often when a buyer can’t qualify for a conventional mortgage, or when both parties want to skip bank underwriting and closing costs.
The Basic Financial Structure
The purchase price splits into two pieces. The down payment is paid at closing, and sellers commonly look for at least 10% to 20%, often more, depending on the buyer’s credit profile and how much cushion the seller wants if the buyer later defaults. The remaining balance becomes the loan principal.
Interest rates on these private loans typically run between 6% and 10%, generally higher than a bank would charge a well-qualified borrower. The rate reflects the seller’s added risk of lending without institutional infrastructure. Rates can’t be set arbitrarily low either. The IRS publishes Applicable Federal Rates each month, and for January 2026 the long-term AFR sits at 4.63% with annual compounding.1Internal Revenue Service. Revenue Ruling 2026-2, Applicable Federal Rates If a seller-financed note charges less than the AFR, the IRS may treat the difference as imputed interest, creating phantom tax liability for both sides. State usury laws set ceilings at the other end, and exceeding them can void the interest provisions.
Payments follow an amortization schedule that divides each payment between interest and principal. Most deals amortize over 15 to 30 years to keep the monthly figure manageable, but the loan term itself is usually much shorter. A five-year or ten-year balloon is the most common arrangement, where the entire remaining balance comes due at the end of the term.2Consumer Financial Protection Bureau. What Is a Balloon Payment? When Is One Allowed? The practical effect: the buyer makes affordable monthly payments for a few years, then must refinance with a conventional lender or sell the property to pay off the balloon. Buyers who can do neither end up in default.
The Two Legal Structures
Seller financing typically takes one of two forms, and the difference matters far more than most people expect.
Promissory Note With a Mortgage or Deed of Trust
This structure mirrors a conventional bank loan. The seller conveys full legal title to the buyer at closing, and the buyer signs a promissory note promising to repay the loan. A mortgage or deed of trust secures that promise by creating a lien against the property. If the buyer stops paying, the seller forecloses through the same judicial or non-judicial process a bank would use. The buyer owns the property from day one and can build equity, take out additional financing, and exercise normal ownership rights.
Contract for Deed
Under a contract for deed, also called a land contract, the seller keeps legal title until the buyer finishes paying the full purchase price. The buyer gets possession and use of the property but doesn’t receive the deed until the final payment. It’s simpler and cheaper to set up because there’s no separate mortgage document to record. The tradeoff is real risk for the buyer: in many states, if the buyer defaults, the seller can reclaim the property through a forfeiture process that’s faster and offers fewer protections than a foreclosure. The buyer builds no recorded ownership interest until the contract is fully performed.
Federal Rules That Apply to the Seller-Lender
The Dodd-Frank Act brought seller financing under federal consumer protection rules, then carved out two exemptions that cover most private sellers. Whether a seller qualifies determines how much compliance the deal requires.
The One-Property Exemption
A seller who finances only one property in any 12-month period is exempt from loan originator licensing, provided the seller owned the property and wasn’t the builder of the home. Under this exemption, the loan cannot have negative amortization, but balloon payments are allowed. The interest rate must be fixed or, if adjustable, can’t reset sooner than five years after closing, with annual rate increases capped at two percentage points and a lifetime cap of six.3eCFR. 12 CFR 1026.36 – Prohibited Acts or Practices and Certain Requirements for Credit Secured by a Dwelling
The Three-Property Exemption
Sellers who finance up to three property sales in a 12-month period get a narrower exemption. The loan must be fully amortizing, with no balloon payment allowed, and the seller must make a good-faith determination that the buyer can reasonably afford the payments. The same interest rate structure rules apply: fixed rate, or adjustable only after five years with the same two-point annual and six-point lifetime caps.3eCFR. 12 CFR 1026.36 – Prohibited Acts or Practices and Certain Requirements for Credit Secured by a Dwelling
Ability-to-Repay and Prepayment Penalties
Sellers outside either exemption must comply with the full ability-to-repay rules under federal law. That means verifying the buyer’s income through tax returns, W-2s, or payroll records and evaluating credit history, current debts, and debt-to-income ratio before making the loan.4Office of the Law Revision Counsel. 15 USC 1639c – Minimum Standards for Residential Mortgage Loans Sellers within the three-property exemption must still make a good-faith ability-to-repay determination, though the documentation is less formal.
Federal law also restricts prepayment penalties on residential mortgage loans. For qualified mortgages, the maximum penalty is 3% of the outstanding balance in the first year, 2% in the second year, and 1% in the third year. After three years, no prepayment penalty can be charged. Loans that don’t qualify as qualified mortgages can’t include prepayment penalties at all.4Office of the Law Revision Counsel. 15 USC 1639c – Minimum Standards for Residential Mortgage Loans
Closing, Recording, and Title Insurance
Once the parties agree on terms, closing looks a lot like a conventional sale. The promissory note spells out the loan amount, interest rate, payment schedule, maturity date, late-payment penalties, and any grace periods. The security instrument, a mortgage or deed of trust depending on the state, ties the debt to the property. Both documents are signed before a notary.
The signed security instrument then gets filed with the local county recorder’s office. Recording creates a public lien, which puts future lenders and buyers on notice that the seller holds a financial interest in the property. Without recording, the seller’s lien can be wiped out if the buyer takes on additional debt secured by the same property. Title companies or escrow agents often handle the closing to keep the exchange neutral, managing the down payment to the seller and the deed to the buyer.
Sellers acting as lenders should also consider requiring a lender’s title insurance policy. Premiums generally run between 0.5% and 1.0% of the purchase price as a one-time cost at closing, and the policy protects the seller-lender against undiscovered title defects that could undermine the lien position.5U.S. Department of the Treasury. Exploring Title Insurance, Consumer Protection, and Opportunities for Potential Reforms Skipping the recording step or the title policy to save money is one of the more common mistakes in seller-financed deals, and it’s almost always the seller who pays for it later.
When the Seller Still Has a Mortgage
This is where seller financing gets genuinely dangerous. If the seller hasn’t paid off their existing mortgage, the seller-financed sale creates a second layer of debt on the property. Nearly every conventional mortgage contains a due-on-sale clause that lets the lender demand full repayment of the remaining balance when the property changes hands. Selling with owner financing triggers that clause.
The Garn-St. Germain Act lists specific transfers where lenders can’t enforce a due-on-sale clause, including transfers to a spouse or child, transfers into a living trust where the borrower remains a beneficiary, and transfers resulting from a divorce decree.6Office of the Law Revision Counsel. 12 USC 1701j-3 – Preemption of Due-on-Sale Prohibitions A standard sale to an unrelated buyer is not on that list. If the original lender discovers the transfer and calls the loan due, the seller must pay the remaining balance immediately or face foreclosure on their own mortgage, which would also destroy the buyer’s interest in the property.
Some sellers attempt a wraparound mortgage, where the buyer’s payments to the seller are large enough to cover the seller’s ongoing payments to the original lender, and the seller pockets the difference. It works fine month to month, but it doesn’t eliminate due-on-sale risk. The buyer is trusting the seller to keep paying the underlying mortgage with no direct control over whether that happens. Buyers considering this arrangement should at minimum require proof that the existing mortgage is current and build in contractual protections requiring the seller to provide regular payment confirmations.
Tax Treatment for the Seller
The IRS treats seller financing as an installment sale, meaning the seller reports gain gradually as payments come in rather than all at once in the year of the sale.7Office of the Law Revision Counsel. 26 USC 453 – Installment Method Each payment the seller receives has three parts: return of the seller’s original basis (not taxed), capital gain on the sale (taxed), and interest income (taxed as ordinary income).
The taxable-gain portion depends on the gross profit percentage, which is the seller’s total profit divided by the contract price. If a seller bought a home for $150,000, put $50,000 into improvements, and sells it for $400,000 with seller financing, the adjusted basis is $200,000, the gross profit is $200,000, and the gross profit percentage is 50%. Half of every principal payment received that year gets reported as capital gain.8Internal Revenue Service. Publication 537, Installment Sales The seller reports this on Form 6252 each year payments are received.
Sellers of rental or investment property face an additional wrinkle. Any depreciation previously claimed must be recaptured and reported as ordinary income in the year of the sale, regardless of whether any installment payment was received that year.8Internal Revenue Service. Publication 537, Installment Sales This catches some sellers off guard because the recapture tax bill arrives before most of the sale proceeds do. Recapture is calculated on Form 4797 and reported as ordinary income; only gain exceeding the recapture amount qualifies for installment treatment. A seller can also opt out of the installment method entirely and report all gain in the year of sale, which sometimes makes sense if the seller expects a higher tax bracket in future years.
One point worth clarifying, because it’s often stated wrong: a homeowner selling a single property is generally not required to issue Form 1098 to the buyer. The IRS requires Form 1098 only when interest is received in the course of a trade or business, and the instructions specifically say that if you hold the mortgage on your former personal residence and the buyer makes payments to you, you are not required to file Form 1098.9Internal Revenue Service. Instructions for Form 1098 (Rev. December 2026) The interest still has to be reported as income on the seller’s own return.
Tax Treatment for the Buyer
Buyers paying interest on a seller-financed loan can generally deduct it on their federal return, just as with a conventional mortgage. The debt must be secured debt on a qualified home. For seller-financed mortgages and wraparound arrangements, the IRS treats the loan as secured debt only if the mortgage or deed of trust is recorded or otherwise perfected under state law.10Internal Revenue Service. Publication 936, Home Mortgage Interest Deduction An unrecorded seller-financed note won’t qualify, which is another reason recording matters for both parties.
To claim the deduction, the buyer must report the seller’s name, address, and taxpayer identification number on Schedule A. The seller has to provide their TIN to the buyer, and the buyer has to provide theirs to the seller. Failure to exchange TINs can result in a $50 penalty for each failure.10Internal Revenue Service. Publication 936, Home Mortgage Interest Deduction Because no Form 1098 will typically be issued in a private sale, the buyer reports the interest on Schedule A line 8b rather than 8a.
What Happens If the Buyer Defaults
The seller’s remedies depend on the deal structure. With a note-and-mortgage arrangement, the seller must go through the formal foreclosure process, which varies significantly by state. Some states require judicial foreclosure through the court system; others allow non-judicial foreclosure through a trustee sale. Timelines range from roughly 120 days in faster states to well over a year in states with extensive judicial requirements.
With a contract for deed, the path is often faster. Many states allow the seller to pursue forfeiture proceedings, which can return possession of the property to the seller more quickly than a full foreclosure. The buyer in a contract-for-deed default may lose all payments made up to that point, depending on the state and contract terms.
Whichever structure is used, the loan documents should spell out what counts as default, any grace periods for late payments, and the seller’s right to accelerate the full remaining balance if the buyer falls behind. Many agreements give the buyer a cure period, often 20 to 30 days after written notice, to bring the loan current before the seller can take further action. Building these provisions into the original agreement is far easier than litigating them later.
The security instrument is what makes enforcement possible. A seller who skipped recording, or relied on a handshake instead of a properly drafted note and mortgage, is left with a breach-of-contract lawsuit and no ability to foreclose on the property. That’s the worst outcome for a seller-lender, and it’s entirely preventable with proper documentation at closing.