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Seller financing structure: The standard carry-paper deal anatomy
Seller financing structure is what most first-time buyers and sellers get wrong because they negotiate the headline purchase price and treat the financing as paperwork.
I have been operating in the small business finance world long enough to tell you that the structure of the seller-carried note moves more after-tax money than the headline price does on most under-$5M deals.
This piece walks the standard structure piece by piece, the variables that move real dollars, and where the negotiation pressure points actually sit.
Everything below applies to typical seller-carry transactions in the $250K to $5M sale-price range. Larger deals use similar mechanics with different sizing and lender involvement.
The six core variables
Plain and simple, a seller-financing structure is defined by six negotiated variables. Down payment percentage, note amount, interest rate, term length, amortization schedule, and security package. Each variable moves money. The buyer who treats them as a single bundle pays more than necessary. The seller who optimizes one without thinking about the others leaves money on the table.
From my experience, the most common structure on a $750,000 deal looks like this. Buyer puts 15 percent down ($112,500). Seller carries 85 percent ($637,500) as a 60-month note at 8 percent interest, amortized monthly, with a 30 to 60 day payment-free grace period at the start.
Down payment percentage
The down payment is the buyer’s cash at close and the seller’s first piece of certainty. Typical deals run 10 to 25 percent down. The exact number trades off against rate (more down equals lower rate) and against the seller’s risk appetite. From my experience, deals close consistently at 15 to 20 percent down when the buyer has strong credit and operating experience.
Interest rate
The note rate is where the seller’s compensation for waiting shows up. Standard rates on small-business seller notes in 2026 run 7 to 10 percent depending on buyer creditworthiness, deal size, and prevailing market rates. The rate affects every monthly payment for the life of the note and is the single most negotiated variable in the standard structure.
Term length
Term length determines how long the seller carries the credit risk and how affordable the monthly payment is for the buyer. Typical small-business seller notes run 3 to 7 years. Shorter terms front-load principal recovery for the seller. Longer terms ease the buyer’s cash flow but extend the seller’s risk window.
Amortization schedule
The amortization schedule controls how each monthly payment splits between principal and interest. Three standard formats appear in seller-carry deals.
- Full amortization. The note fully pays off over the stated term. Even principal and interest payments throughout.
- Balloon amortization. Monthly payments are calculated on a longer schedule (say 15 years) but the note matures in 5 years with a single balloon payment of the remaining balance.
- Interest-only with balloon. Monthly payments cover interest only. The full principal balance becomes due at maturity.
From my experience, balloon amortization is the most common format on deals over $500K. The structure keeps the monthly burden manageable for the buyer while concentrating principal recovery into a single refinance event at year 5. Pure interest-only is rare on standard small-business deals.
Security package
The security package is what the seller takes back if the buyer defaults. Standard packages include a security agreement granting the seller a junior lien on the business assets, a UCC-1 filing perfecting the seller’s security interest, a personal guarantee from the buyer covering the note, and sometimes additional collateral like the buyer’s primary residence.
That being said, the security package interacts with whatever senior debt sits ahead of the seller note. If an SBA loan or conventional bank loan is in first position, the seller’s security interest sits behind that lender. The mechanics of perfecting a junior position are standard transactional law but matter for what the seller can actually recover in default.
Side-by-side: Common structure patterns
| Element | Conservative Structure | Buyer-Friendly Structure |
|---|---|---|
| Down payment | 25 percent | 10 percent |
| Interest rate | 9 to 10 percent | 6 to 7 percent |
| Term | 5 years full amortization | 7-year amortization with year-5 balloon |
| Personal guarantee | Unlimited from buyer + spouse | Capped at buyer net worth |
| Grace period | None | 30 to 90 days |
| Prepayment | Penalty in first 2 years | No prepayment penalty |
Where the negotiation pressure actually sits
Three of the six variables consistently move the most money in negotiation. The interest rate, where every 100 basis points equals real monthly dollars. The balloon timing, where year-5 versus year-7 maturity affects refinance risk. The personal guarantee scope, where unlimited versus capped guarantees affect how much of the buyer’s personal balance sheet stays on the line.
The other three variables (down payment, term, security package) tend to move together once the buyer and seller agree on the basic deal architecture. From my experience, the buyer who pushes hard on rate, balloon, and guarantee while accepting the seller’s defaults on the other three closes a structurally cleaner deal than the buyer who fights all six variables simultaneously.
How the structure connects to other topics
The structure decision touches several other deal areas. The seller financing tax implications piece walks how the installment sale mechanics interact with the structure. The seller financing vs earnout piece compares seller notes against earnout payments, which have very different tax and risk profiles despite superficially similar economics. The pros and cons of seller carry financing piece walks the overall trade-offs that drive sellers to accept paper in the first place.
What happens when the structure pairs with bank debt
Many seller-carry deals are layered with senior bank debt. The senior debt sits in first position, the seller note sits in second position, and the buyer’s equity sits behind both. The mechanics of how the seller note sits behind senior debt, the standby terms required when the structure is paired with SBA financing, and the inter-creditor agreement that governs liquidation priority all matter for what the seller actually recovers in a workout.
From my experience, sellers in stacked structures should expect to recover materially less than face value if the buyer defaults. The senior lender takes the collateral first. The seller’s recovery comes from what is left, which is often pennies on the dollar in a real liquidation.
Negotiation sequence at the LOI stage
Three negotiation moves consistently produce a cleaner final structure when done at the LOI stage rather than at the asset purchase agreement stage.
First, lock the interest rate explicitly in the LOI rather than leaving it as a “to be negotiated” item. Sellers and buyers who delay this conversation almost always end up at the higher end of the rate range. Second, define the personal guarantee scope in the LOI. A buyer who agrees to “an unlimited personal guarantee” in the LOI cannot easily walk that back later.
Third, specify the prepayment terms. Sellers who push for prepayment penalties usually get them if the buyer does not flag the issue early.
Five common structure mistakes
The first mistake is accepting the broker’s draft note without redline. The broker represents the seller, and the draft will reflect seller-friendly defaults. The second is failing to negotiate the personal guarantee scope. The default in most drafts is unlimited.
The third is mismatching the term to the buyer’s refinance plan. A balloon at year 5 only works if the buyer can realistically refinance the remaining balance at year 5. The fourth is ignoring the security package. Junior position behind senior debt means the seller recovers little in a workout.
The fifth is failing to coordinate with senior lender requirements. SBA loans impose specific standby terms that the seller note must comply with, and structuring the seller note in conflict with those terms kills the SBA approval.
How to take the next step
If you are about to structure a seller-financed deal, the right sequence is straightforward. Draft the note term sheet before the LOI signs. Engage a transactional attorney who has closed at least 5 seller-financed deals in the last 24 months. Walk through each of the six variables explicitly in order to make conscious choices rather than accepting defaults. Coordinate the structure with any senior lender in the stack before the asset purchase agreement gets close to final.
From there, the work compounds. Buyers and sellers who treat the structure as the centerpiece of the deal in order to capture the full economic value close on terms they can both live with for years. Parties who treat the structure as paperwork take whatever boilerplate the broker provides. Good luck and keep at it.