Review the note before entering acquisition basis
A seller offers to finance a commercial property with little or no stated interest. The buyer likes the apparent financing savings and plans to add every scheduled payment to the building's cost. IRS Publication 551 explains that property acquired on a time-payment plan with insufficient interest can have a basis equal to stated price reduced by unstated interest or original issue discount. The tax rules can recharacterize part of the bargain as financing rather than property cost.
Have the note reviewed before closing. Identify payment dates, balloon amounts, stated interest, contingent payments, and any related-party relationship. The applicable interest framework depends on the instrument and transaction, so do not insert a current market mortgage rate as an assumed tax answer. Obtain a schedule showing issue price, principal, and interest under the relevant rules. The seller's desired installment reporting and the buyer's opening basis should be based on the same actual contract.
Use a simplified price-and-interest illustration
Suppose a hypothetical agreement calls for $1 million of scheduled payments labeled purchase price, with no separate interest. Assume the applicable analysis establishes that $120,000 of those payments is financing interest and $880,000 is acquisition principal. Before other capital costs, the property basis begins with $880,000 rather than $1 million. If a supported allocation assigns 25 percent to land, the simplified allocation is $220,000 to land and $660,000 to building.
The $120,000 is not simply deducted on the closing date. Its timing and deductibility follow the relevant interest and original-issue-discount rules, including any applicable limitations or capitalization requirements. The example assumes the recharacterized amounts solely to illustrate the distinction; an actual computation requires the payment schedule and applicable rules. The buyer still owes the contractual payments. A basis adjustment changes tax reporting, not the seller's right to collect the agreed dollars or the buyer's need to budget the balloon.
Compare the seller note with conventional financing
Prepare an after-tax financing comparison using the same property price and holding period. Include closing costs, lender fees, prepayment flexibility, security, guarantees, default provisions, and the balloon. A low stated rate may be offset by a higher purchase price or a restrictive early-payment clause. Conversely, seller financing can provide access to premises when bank financing is unavailable. The decision should consider usable liquidity and refinancing risk as well as the note's face rate.
Ask whether the business can fund scheduled principal during a slow year and whether replacement financing is realistic at maturity. Interest deductions cannot rescue an unaffordable balloon. The owner should also understand that principal payments generally do not create a new deduction each year; the property's qualifying cost is recovered through applicable depreciation and eventual disposition. Keep debt service and depreciation on separate forecast lines so the operating company does not confuse a falling loan balance with a deductible premises expense.
Allocate the acquisition and record the note independently
The property asset register and loan ledger should be separate but reconcilable. The first tracks land, building, other assets, acquisition costs, and depreciation. The second tracks issue price, principal, interest or discount accrual, payments, and balance. Reconcile both to the closing documents and the supported value allocation. A combined account called building loan can make principal payments disappear into expense and leave the opening property basis unsupported.
If the agreement changes after closing, obtain a revised tax review before updating schedules. A modification of payment dates, interest, or principal may have consequences beyond changing the monthly budget. Preserve the original schedule and the reason for the amendment. If the seller reports a different allocation or financing amount, resolve the discrepancy using the contract and applicable rules. Consistent records help both parties understand the transaction, but consistency alone does not make an unsupported treatment correct.
Make the opening workpaper reviewable
Collect the signed agreement, note, security instrument, applicable-interest analysis, allocation evidence, closing-cost detail, and amortization schedule. Confirm who will maintain interest reporting and who will reconcile annual payments. Before the first return is filed, show the owner a bridge from total contractual payments to acquisition principal, financing cost, and depreciable basis. Add the balloon date to the property reserve plan. That bridge turns an attractive financing offer into an understandable long-term obligation with a supported tax starting point.
Sources & further reading
Consult the original guidance and its effective dates. These references support the educational discussion; their application depends on the specific facts.