A seller take-back mortgage is a sale in which the seller carries the financing: the buyer signs a promissory note secured by the property, and pays the seller over time instead of a bank. To make one work, you have to clear any existing mortgage on the property, set an interest rate that clears the IRS floor without breaching your state’s usury ceiling, structure the loan to fit inside a federal seller-financing exemption, record a properly drafted note and security instrument, and report the payments as an installment sale.
Clear the Existing Mortgage Before You Do Anything Else
If you still owe money on the property, your mortgage almost certainly contains a due-on-sale clause. Federal law lets the lender demand the entire remaining balance the moment the property is sold or transferred without written consent, and lets them foreclose if you can’t pay.1Office of the Law Revision Counsel. 12 U.S. Code 1701j-3 – Preemption of Due-on-Sale Prohibitions
Federal law does list situations where the lender cannot enforce the clause, including transfers on death, divorce, or into a trust where the borrower stays the beneficiary.1Office of the Law Revision Counsel. 12 U.S. Code 1701j-3 – Preemption of Due-on-Sale Prohibitions Selling to a new buyer with seller financing is not on that list. Wrapping a new loan around your existing mortgage means the original lender can call the note.
Two safe paths: own the property free and clear, or pay off the existing mortgage at closing from the buyer’s down payment and your own funds. If neither works, get written consent from your lender before you sign anything. Most seller-financing disasters start here.
Set the Interest Rate Between the Floor and the Ceiling
The rate has two hard limits. Miss either one and the deal starts costing you.
The floor is the Applicable Federal Rate, which the IRS publishes monthly in three tiers: short-term (up to three years), mid-term (three to nine years), and long-term (over nine years).2Internal Revenue Service. Applicable Federal Rates If your stated rate falls below the AFR for the loan’s term, the below-market loan rules treat the shortfall as forgone interest and tax you on it anyway, even though no money changed hands.3Office of the Law Revision Counsel. 26 U.S. Code 7872 – Treatment of Loans With Below-Market Interest Rates Check the current month’s revenue ruling before you set terms.4Internal Revenue Service. Revenue Ruling 2026-2
The ceiling is your state’s usury cap, which varies by state, loan type, and loan size.5Conference of State Bank Supervisors. CSBS Releases Comprehensive State Usury Rate Tool Go over it and the interest can be voided entirely or you can face penalties. Confirm the cap for the state where the property sits before agreeing on a number.
Down Payment, Term, and the Balloon Question
A down payment does two jobs. It gives the buyer real equity, which lowers the chance they walk away, and it hands you cash at closing to cover transaction costs or pay off your existing loan. Ten to twenty percent is the usual range. Below ten and your risk climbs sharply, because a buyer with little skin in the game has less reason to keep paying if the market softens.
Most seller-financed loans use a long amortization schedule with a shorter maturity. Payments are calculated as if the loan runs 25 or 30 years, which keeps the monthly number affordable, but the note itself matures in five to ten years with a balloon payment for the remaining balance.6Consumer Financial Protection Bureau. What Is a Balloon Payment? When Is One Allowed? That forces the buyer to refinance or pay you off, so your money isn’t tied up indefinitely.
Balloons carry a catch. Under federal rules, only the one-property exemption below allows them. A seller who finances more than one property in a 12-month window cannot include a balloon at all.
Which Federal Exemption You Fit Under
The Dodd-Frank Act treats anyone making a residential mortgage as a loan originator, subject to licensing and to the ability-to-repay rule. Seller financing has two carve-outs, and the one you qualify for shapes what your loan can look like.
The One-Property Exemption
Available only to natural persons, estates, and trusts financing a single property in any 12-month period.7eCFR. 12 CFR 1026.36 – Prohibited Acts or Practices You own the property, it secures the loan, and you did not build or act as general contractor for the residence. Balloon payments are allowed as long as the loan doesn’t negatively amortize. You don’t have to formally verify the buyer’s ability to repay. The rate must be fixed, or adjustable only after five years and tied to a widely available index with reasonable annual and lifetime caps.
This is the common path when a homeowner sells a single residence with financing attached.
The Three-Property Exemption
Available to any person or entity financing three or fewer properties in a 12-month period.7eCFR. 12 CFR 1026.36 – Prohibited Acts or Practices Same ownership and no-construction rules. Same rate restrictions. Two differences: no balloon payments (the loan must fully amortize), and you must make a good-faith determination that the buyer can afford the payments, weighing income, debts, credit history, and employment. The verification is less formal than a bank’s, but it has to happen.
If You Fit Neither
Finance more than three properties in a year, or miss any of the criteria above, and you may be treated as a loan originator with full licensing obligations under Dodd-Frank and the SAFE Act.8eCFR. 12 CFR Part 1008 – SAFE Mortgage Licensing Act The ability-to-repay rule applies in full, with documented verification of the buyer’s income, assets, debts, and credit.9Office of the Law Revision Counsel. 15 U.S. Code 1639c – Minimum Standards for Residential Mortgage Loans Violations expose you to rescission and damages. Get a real estate attorney involved if you’re anywhere near the line.
The Two Documents That Make It Enforceable
Every seller-financed deal rests on a promissory note and a security instrument. These define what happens when the deal goes sideways, which matters more than any other paperwork in the transaction.
The Promissory Note
The note is the buyer’s written promise to repay. It states the principal, the interest rate, the payment amount and schedule, the maturity date, and the consequences of missed or late payments. If there’s a balloon, the note states the amount and the date. The note stands on its own as a debt. Without a recorded security instrument behind it, though, your only remedy for nonpayment is a lawsuit, not foreclosure.
The Security Instrument
The security instrument ties the debt to the property. Depending on the state, it’s either a mortgage or a deed of trust, and the choice isn’t up to the parties. Mortgage states generally require judicial foreclosure through the courts, which is slower and more expensive. Deed-of-trust states typically allow a non-judicial trustee sale, which is faster.
The instrument creates a lien on the property, and it has to be recorded with the county recorder immediately after closing to establish priority. An unrecorded lien is invisible: if the buyer takes out another loan and that lender records first, your lien drops behind theirs.
Protective Clauses to Put in the Note
Beyond the payment terms, the documents should include several standard protections. These are what keep a well-structured deal from unraveling at the first missed payment or lapsed policy.
Hazard insurance. Require the buyer to carry property insurance for the full replacement value of the improvements, with you named as additional insured or loss payee. If the property burns and there’s no policy, your collateral is gone but the debt remains, and a buyer who just lost their home is not a collectible defendant. Include the right to force-place coverage at the buyer’s expense if their policy lapses.
Property tax escrow. Unpaid property taxes create a lien that jumps ahead of yours. The safest structure is a monthly escrow: you collect the tax portion with each payment and pay the county directly. At minimum, require proof of tax payments and treat unpaid taxes as a default.
Late fees and grace period. Ten to fifteen days is a common grace period, followed by a late fee. State law caps the fee, so check locally and keep the percentage reasonable.
Acceleration clause. This lets you declare the entire balance due immediately on any material default: missed payments, lapsed insurance, unpaid taxes, or unauthorized transfer.
How the Seller Gets Taxed
Seller financing almost always creates an installment sale, which spreads gain recognition across the life of the loan instead of concentrating it in the year of sale. Each payment you receive has three parts:10Internal Revenue Service. Publication 537, Installment Sales
- Interest, taxed as ordinary income in the year received.
- Return of basis, meaning the portion representing your adjusted basis plus selling expenses. Not taxed. This is just your own money coming back.
- Capital gain, taxed at capital gains rates.
The split between basis and gain is set by the gross profit percentage: total gain divided by contract price. That percentage applied to each principal payment gives you the taxable gain portion for the year.10Internal Revenue Service. Publication 537, Installment Sales
Report the installment sale on Form 6252 in the year of the sale and every subsequent year you receive payments. Interest income goes on its own line, like any other interest. If the loan doesn’t charge adequate stated interest (below the AFR), the IRS will recharacterize part of the principal as unstated interest, boosting your ordinary income and shrinking the capital gain component.11Internal Revenue Service. Topic No. 705, Installment Sales
One more reporting question. If you receive $600 or more in mortgage interest during the year in the course of a trade or business, you must issue Form 1098 to the buyer.12Internal Revenue Service. About Form 1098, Mortgage Interest Statement Whether a one-time seller-financer counts as a trade or business is a gray area. Sellers who finance multiple properties clearly need to file. A single-transaction seller should raise the question with a tax preparer, because the buyer will want the form to deduct the interest they paid.
Servicing the Loan and Handling Default
Someone has to collect payments, credit them correctly between principal, interest, and escrow, disburse taxes and insurance, and send year-end statements. You can do this yourself, but the records need to hold up in a dispute, and the bookkeeping burden is real.
A third-party loan servicing company usually earns its fee. Most charge a flat $20 to $50 per month depending on balance and complexity. You get a clean paper trail, and the personal dynamic drops out of the lender-borrower relationship, which matters when the buyer is someone you know.
When the buyer misses a payment, follow the default sequence in the security instrument and under state law. It usually starts with a written notice of default giving the buyer a defined period to cure, often 30 days, though the exact window depends on the loan documents and the state. If the buyer doesn’t cure, you accelerate the loan and initiate foreclosure. In mortgage states that goes through the courts and takes months or longer; in deed-of-trust states, a trustee can often run a non-judicial public sale that moves faster. Either way, the recorded security instrument is what makes foreclosure possible. A seller who skipped recording, or who used a weak instrument, discovers the cost of those shortcuts here.