Key Takeaways
How to set and defend the interest rate on a seller-financed land note in 2026, using published rates instead of the range everyone repeats.
- The legal floor is the IRS Applicable Federal Rate: 4.18, 4.49 or 5.12 percent in September 2026, depending on the note’s term.
- The widely quoted “8 to 12 percent” has no published source, because federal mortgage data excludes loans secured by unimproved land.
- Real benchmarks do exist: 6.76 percent on 30-year mortgages and roughly 7 percent on farm loans, both as of the latest 2026 readings.
- Usury is the wrong first question on a credit sale. A seller-financed sale is not automatically a loan, and the analysis varies by state.
- Every extra point costs the buyer real money: 8 to 12 percent adds $98 a month and $17,605 over a 15-year, $40,000 note.
Almost every article on this question gives you the same answer, and none of them say where it came from. That is the actual problem with pricing a seller-financed land note: not that the number is hard, but that the number in circulation is folklore, and a buyer who pushes back on it will win, because you cannot show your work.
You can, though. Four published figures bracket the decision, and once you have them the rate stops being a guess and starts being a defensible position. This is written for the seller carrying the note, on raw or lightly improved ground, in 2026.
Before the rate, the structure has to be settled, because the instrument you choose changes who holds what while the buyer pays. Our explainer on owner financing covers the version where the seller keeps legal title until payoff and the version where title passes at closing against a recorded lien.
Quick verdict: build the rate instead of copying one. Start at the AFR floor for your term, step up past the mortgage and farm-loan benchmarks, then add a premium you can justify out loud for the down payment, the buyer’s credit and the length of the note. A rate you can explain in four sentences survives a negotiation. A rate you read on a blog does not. None of this is legal, tax or financial advice, so confirm your specifics with an attorney and a CPA before you sign.
What Interest Rate Should You Charge on Owner-Financed Land?
Charge a rate above the IRS Applicable Federal Rate for your note’s term and above what a bank currently charges on comparable credit, then add a premium for the risk you are taking that a bank would not. In September 2026 that arithmetic starts at 5.12 percent and climbs from there.
The four numbers that bracket the decision, all published and all checkable:
| Component | September 2026 figure | What it is |
| Floor | 4.18 / 4.49 / 5.12 percent | IRS Applicable Federal Rate, by note length |
| Housing benchmark | 6.76 percent | 30-year fixed mortgage average |
| Land-adjacent benchmark | About 7 percent | Average rate on farm loans |
| Tax-rule ceiling | 9 percent, semiannual | The imputation cap in 26 U.S.C. 1274A |
Nothing in that table tells you your exact number. What it does is put boundaries around it, and give you four sentences to say when a buyer asks why the rate is what it is.
Where Does the “8 to 12 Percent” Figure Actually Come From?
Nowhere you can cite, and there is a regulatory reason for that rather than a lazy one.
Federal mortgage reporting under Regulation C collects rate data across millions of loans a year. It does not collect yours. The rule excludes “A Closed-End Mortgage Loan or an Open-End Line of Credit secured by a lien on unimproved land”, with a narrow exception where the lender knows the money will build or buy a dwelling on that land within two years.
Bare land is outside the dataset. So the single largest public source of American lending rates contains no seller-financed land notes at all, and no other public series fills the gap.
That absence shows up in the search results. Ask Google what rate to charge and it hands you a Reddit thread and a discussion-forum block before it hands you an article, which is what happens when no publisher has a defensible answer and people go looking for someone who has actually done a deal.
The fix is not a better guess. It is to stop quoting a range and start assembling one.
What Is the Legal Minimum You Can Charge?
The IRS Applicable Federal Rate for the month the note is signed and the term it runs. Charge less and the tax rules can treat part of what you collect as interest anyway.
For September 2026, from Revenue Ruling 2026-17, annual compounding:
| Note term | Tier | Annual AFR |
| 3 years or less | Short-term | 4.18 percent |
| Over 3 up to 9 years | Mid-term | 4.49 percent |
| Over 9 years | Long-term | 5.12 percent |
A 15-year land note uses 5.12 percent. A five-year note with a balloon uses 4.49. The rate is set by the month the instrument is issued, so a deal that slips into October uses October’s ruling.
Go below the floor and the installment-sale rules take over. The IRS puts the consequence plainly: “you may have to treat part of each later payment as interest, even if it’s not called interest in your agreement with the buyer.” The mechanism runs through sections 483 and 1274 and is spelled out in Publication 537, which also covers how an installment sale is reported.
In practice this floor almost never binds, because market rates on land notes sit well above it. It matters in the one situation sellers walk into by accident: a family sale, or a favour, priced at two or three percent because the parties like each other. That note is below the AFR and the tax treatment changes.
Is There a Legal Maximum on a Seller-Financed Note?
Probably, but not the one most articles describe, and on a credit sale the first question is not what the cap is. It is whether a cap applies at all.
Usury statutes govern loans. A seller-financed sale is not obviously a loan: the owner sells property and takes payment over time. Courts have treated that distinction seriously for a long time. The Michigan Law Review’s survey of the question records that “the applicability of the usury laws traditionally has been limited to transactions involving a loan of money or forbearance to enforce a debt”, on the reasoning that “the borrower has little choice but to borrow, the purchaser has merely to refrain from buying”. Decisions denying that usury law reaches such a credit sale “comprise the majority rule today”, and the doctrine has been “enacted into statute in Texas and Colorado”.
Read the time-price doctrine as context, not permission. That survey is from 1964, consumer-credit statutes have narrowed the doctrine in several states since, and courts examining a transaction’s substance rather than its form have limited it further. The practical instruction changes shape: instead of looking up a usury cap and assuming it binds you, ask a real estate attorney in your state what governs a credit sale of land there. The answer is genuinely different from state to state, and it is worth one hour of somebody’s time on a note you will hold for fifteen years.
There is one hard federal percentage, and it is not a charging limit. Section 1274A provides that for a qualified debt instrument “the discount rate used for purposes of sections 483 and 1274 shall not exceed 9 percent, compounded semiannually”, where stated principal does not exceed the inflation-adjusted threshold set out in the statute. That caps the rate the tax rules will impute against you, which protects sellers when the AFR runs high. At 5.12 percent it is not close to binding. It is worth knowing because it is the only 9 in this topic that comes from the statute itself rather than from a rounded opinion.
What Should You Benchmark the Rate Against?
Two published series, both current, both better anchors than anything in a listicle.
The 30-year fixed mortgage average stood at 6.76 percent for the week ending 10 September 2026, up from 6.71 the week before and 6.66 in late August. That is the 30-year mortgage benchmark most buyers carry in their heads, and it is the number they will mentally compare your rate against whether or not it is the right comparison.
The closer comparison is agricultural credit, because those lenders actually underwrite land. The Kansas City Fed reported that in the second quarter of 2026 the average rate on farm loans greater than $100,000 was “slightly less than 7%”, with smaller loans “slightly above 7%”, and rates “nearly unchanged from the previous quarter”.
Sit with that for a second, because it reframes the whole question. Institutions that lend on land, secured, to underwritten borrowers, are pricing around 7 percent. Your note is riskier than theirs: no underwriting department, one borrower, one parcel, and a buyer who came to you because a bank said no. A premium over 7 is easy to defend. A premium of five or six points over it needs an argument, and you should have one ready.
What Moves the Rate Within That Range?
Four things, and they move it in predictable directions. Treat them as adjustments to the benchmark rather than as inputs to a formula.
- Down payment. More cash down means less exposure and a buyer with more to lose by walking. It is the single strongest argument for a lower rate.
- Buyer credit. Weak or thin credit is the reason most of these buyers are talking to you at all, and it is what the premium is compensating. Buyers who What Terms Should You Expect when a bank has already declined them generally accept that the rate reflects it.
- Term. A longer note ties up your capital and extends your exposure, so it usually prices higher. A three-year note with a balloon prices closer to the floor.
- Instrument. A recorded deed of trust with a promissory note and a land contract do not carry the same remedies on default, and the weaker your remedy the more the rate has to compensate.
That last one runs backwards from how most sellers approach it. The step where you Choose Your Instrument sits upstream of the rate, because the remedy you will have on default is part of what the rate is pricing.
Read the four together. A 40 percent down payment on a three-year note to a buyer with reasonable credit is a different risk from 5 percent down over twenty years, and the same rate on both means one of them is mispriced.
What Does Each Extra Point Actually Cost?
About $24 a month per point, on a $40,000 note over 15 years. Here is the full picture, on a fully amortising note with no balloon:
| Interest rate | Monthly payment | Total interest over 15 years |
| 8 percent | $382.26 | $28,806.95 |
| 10 percent | $429.84 | $37,371.57 |
| 12 percent | $480.07 | $46,412.10 |
Moving from 8 to 12 percent adds $97.81 to the monthly payment and $17,605 in interest across the life of the note. To you that is a materially better return. To the buyer it is a payment that may no longer clear their budget, and the deal that does not close returns nothing at all.
Run your own numbers before you commit to a figure, because the curve is steeper than it looks from a percentage. Our payment tables show How the Interest Rate Changes the monthly figure across terms and down payments.
What Do Sellers Get Wrong About the Rate?
Pricing it on hope rather than on the deal in front of them. The specific failures, in the order they cost money:
- Copying a range from an article. If you cannot say where the number came from, neither can you defend it when the buyer counters.
- Charging below the AFR as a favour. The tax rules recharacterise part of the payments anyway, and the paperwork gets worse rather than better.
- Assuming a usury cap applies without checking. On a credit sale the threshold question is whether usury law reaches the transaction at all, and the answer is state-specific.
- Pricing the rate in isolation. Rate, price, down payment and term are one package. Trading a point of rate for ten points of down payment is often the better deal.
- Agreeing terms without a written instrument. A rate you cannot enforce is not a rate. Getting default and title transfer right in the document is what makes the number real.
So What Rate Should You Set on Your Land?
Build it, in four steps, and write the reasoning down where you can find it later.
Start at the AFR for your term, which is 5.12 percent on anything over nine years in September 2026. Step up past the benchmarks, 6.76 percent for mortgages and roughly 7 percent for farm lending, because your note carries risk neither of those does. Add a premium sized to the down payment, the buyer’s credit and the length of the note. Then sanity-check the monthly payment against what this particular buyer can actually pay, because the highest rate that closes beats the higher rate that does not.
The sellers who do best in this market treat the rate as one lever in a package rather than as the whole negotiation. Trade a point for a bigger down payment when the cash matters more than the yield. Hold the rate and give ground on the term when it does not.
When the terms are set, the Owner Financing Tools on our seller platform let you publish the rate, down payment and term on the listing itself, so buyers self-select before they call.
List your owner-financed parcel with the terms stated up front and you spend your time on the buyers who have already accepted them.
Frequently Asked Questions
What is a good interest rate for owner financing land?
A defensible rate starts above the IRS Applicable Federal Rate for your term, 5.12 percent on long-term notes in September 2026, and above current lending benchmarks of 6.76 percent for mortgages and roughly 7 percent for farm loans. Add a premium sized to the down payment, the buyer’s credit and the note length rather than copying a published range.
What is the minimum interest rate for a seller-financed loan?
The IRS Applicable Federal Rate for the month the note is issued and its term. September 2026 rates are 4.18 percent short-term, 4.49 percent mid-term and 5.12 percent long-term, annually compounded. Below that, the installment-sale rules can treat part of each payment as interest even when your agreement does not call it interest.
Is there a maximum interest rate you can charge on owner financing?
Possibly, and the first question is whether usury law reaches a credit sale at all in your state. Courts have traditionally limited usury statutes to loans rather than seller-financed sales, though several states have narrowed that. Ask a real estate attorney what governs a credit sale of land where your parcel sits before setting a high rate.
Can you charge a higher interest rate for owner financing than a bank?
Yes, and the premium is the point. You carry default risk no underwriting department reviewed, on a single parcel, for a buyer a bank declined. Agricultural lenders priced farm loans near 7 percent in the second quarter of 2026, so a rate above that is straightforward to justify. A premium of several points needs a specific argument.
Does the interest rate change how an owner-financed sale is taxed?
Yes. Interest you collect is ordinary income, while gain on the principal is reported under the installment-sale rules. If the stated rate falls below the Applicable Federal Rate, the IRS can recharacterise part of the principal as interest, which changes the split. Confirm the treatment of your specific note with a CPA.
Resources and Further Reading
- IRS Revenue Ruling 2026-17 The September 2026 Applicable Federal Rates, which set the legal minimum for a seller-financed note.
- IRS Publication 537, Installment Sales How unstated and imputed interest work when the stated rate falls short.
- 26 U.S.C. 1274A The 9 percent imputation ceiling for qualified debt instruments.
- FRED 30-Year Fixed Rate Mortgage Average The weekly housing benchmark that seller-financed rates price above.
- Federal Reserve Bank of Kansas City, agricultural finance update Current average interest rates on farm loans.
- Michigan Law Review, usury and installment sales The time-price doctrine and why a credit sale is not automatically a loan.
