A loan purchase agreement is the contract two financial institutions sign when one buys outstanding debt from the other. The buyer pays a negotiated lump sum, and in return receives the right to collect every future borrower payment on the loans in the deal. These contracts drive the secondary debt market: they let banks free up balance-sheet capacity while giving investors access to income-producing assets. The legal framework pulls from contract law, the Uniform Commercial Code, federal consumer protection statutes, and tax rules that behave differently depending on the type of loan involved.
What the Agreement Transfers
The agreement spells out exactly which financial assets are changing hands. That generally means outstanding principal balances, accrued interest, and any fees borrowers currently owe. Price depends on loan quality. Performing loans with above-market rates can trade at a premium. Clean books can sell at par, meaning 100% of the remaining balance. Distressed or delinquent portfolios routinely sell for a fraction of face value.
Two dates drive the economics. The effective date is when the financial benefit of borrower payments starts flowing to the buyer, even if paperwork hasn’t finalized. The closing date is when the transaction officially settles and money changes hands. Those dates are often days or weeks apart, and the gap matters: interest accrues to whichever party holds economic ownership on a given day, so sloppy dating can shift real dollars to the wrong side.
Whole Loan Sale or Participation
Not every loan sale transfers complete ownership. In a whole-loan sale the buyer takes full title and control. The original lender exits entirely, has no ongoing servicing obligation, and removes the asset from its books. In a loan participation the original lender sells a share of the loan to one or more participating institutions but keeps the borrower relationship and continues processing payments. The structure chosen affects who communicates with the borrower, how credit risk is distributed, and whether the original lender keeps any administrative burden.
Who Collects the Payments
Owning a loan and collecting payments on it are legally separate functions. A lender can sell the loan itself while keeping the servicing rights, meaning it continues processing payments, managing escrow, and handling borrower communications in exchange for a fee. Servicing rights can also be sold on their own, apart from the underlying debt. When that happens, the new servicer handles day-to-day borrower contact while the actual loan owner may be a completely different entity. Many borrowers experience this as their “loan being sold” when in reality only the servicer changed. Late fees, prepayment penalties, and escrow interest belong to whichever party holds the servicing rights at the time.
Due Diligence and Representations
A buyer that skips due diligence is buying blind. Before signing, the buyer’s team reviews every loan file in the portfolio. A typical review period runs about 30 days, and during that window the buyer can walk away for any reason. The review usually covers:
- Payment histories, including current delinquency status, past-due patterns, and modification history for each loan.
- Origination documents such as promissory notes, credit applications, and underwriting files, to confirm the loans were properly originated.
- Collateral documentation for secured loans: property appraisals, title policies, environmental reports, and insurance coverage.
- Subordinate debt, including mezzanine loans, second liens, and any intercreditor agreements that affect repayment priority.
- Regulatory compliance, verifying that origination and servicing met applicable federal and agency standards.
Older loans need extra scrutiny. A file that was complete at origination may be missing updated financials, expired insurance certificates, or tenant documentation that has changed hands multiple times. The staler the data, the more independent verification the buyer needs before committing capital.
Both sides also make formal promises in the agreement. The seller warrants that it holds clear title to each loan, that no other party has a competing claim, that the loans are not already in default unless disclosed, and that origination complied with applicable lending laws. The buyer warrants that it has corporate authority to enter a binding purchase agreement and that its funds are lawfully sourced. These warranties sit within UCC Article 9, which governs the sale of accounts, payment intangibles, chattel paper, and promissory notes.1Uniform Commercial Code. Uniform Commercial Code 9-109 – Scope Under that framework, sold loan assets are treated as collateral, so the buyer’s interest must be properly documented and, depending on the asset type, publicly filed to be enforceable against third-party creditors.2Uniform Commercial Code. Uniform Commercial Code 9-102 – Definitions and Index of Definitions
Repurchase Rights, Caps, and Baskets
When a seller’s warranties prove false after closing, the buyer’s main remedy is a repurchase demand, sometimes called a put-back. The seller has to buy the defective loan back, typically at the original purchase price. Common triggers include fraudulent origination documents, misrepresented borrower creditworthiness, inflated appraisals, and defaults that existed but were not disclosed at the time of sale. A seller can sometimes defeat a put-back claim by showing good faith and demonstrating that the borrower, not the originator, was the source of the misrepresentation.
Most agreements put financial guardrails around these obligations. A cap limits the seller’s maximum liability, commonly around 10% of the total deal value for general warranty breaches, though that percentage varies widely by transaction size and negotiating leverage. A basket sets the minimum loss the buyer must absorb before the seller owes anything. In most deals above $10 million the basket works as a true deductible, meaning the buyer only recovers losses exceeding the threshold, rather than a tipping basket where crossing the threshold opens recovery from the first dollar. Basket thresholds typically run 0.5% to 1% of deal value.
Warranty claims also expire. Survival periods for general representations usually run 12 to 18 months after closing. Fundamental warranties, like the seller’s authority to do the deal and its ownership of the assets, last longer, often tied to the applicable statute of limitations or five to six years. Fraud claims almost always survive indefinitely.
Making the Transfer Legally Effective
The loan schedule is the master list identifying every account in the sale. It typically includes each borrower’s name, account number, outstanding balance, interest rate, and maturity date. Alongside the schedule, the seller delivers complete credit files: original promissory notes, credit applications, payment histories, and any correspondence about delinquencies or modifications. The promissory note matters most because it is the written evidence of the borrower’s obligation to repay.
Once the schedule is final, the parties execute an assignment and assumption agreement or a bill of sale to formalize the legal transfer. These documents record the aggregate balance of all loans and the legal names of both entities. Precision matters more here than it looks: errors in the schedule, a missing promissory note, or a misidentified account number can create title disputes months later that cost far more to fix than to prevent.
Buying a loan and having an enforceable claim against competing creditors are separate legal achievements. UCC Article 9 generally requires the buyer to file a financing statement (a UCC-1) with the appropriate state filing office to perfect its interest.3Uniform Commercial Code. Uniform Commercial Code 9-310 – When Filing Required to Perfect Security Interest or Agricultural Lien Perfection establishes priority: without it, another creditor of the seller could claim the same loan assets and potentially win.
There is one significant exception. Sales of payment intangibles and promissory notes are automatically perfected at closing, with no filing required. Sales of accounts and chattel paper still require a financing statement. Because loan portfolios often mix asset types, careful buyers file anyway to cover the whole portfolio rather than sorting each asset into the right legal category and hoping they got it right.
At closing itself, authorized representatives from both firms sign the agreement, the seller delivers loan files to the buyer’s document management system (physical boxes or encrypted digital transfer), and the buyer wires the purchase price to the seller’s designated account. That exchange of files for funds completes the core transaction.
What Changes for the Borrower
A loan sale does not change the terms of the original agreement. The interest rate, payment schedule, remaining balance, and every other condition carry over to the new owner exactly as they were.4Consumer Financial Protection Bureau. What Happens if My Mortgage Is Sold? Is My Loan Safe? The new owner steps into the shoes of the old one and is bound by whatever the borrower originally agreed to. Borrowers also keep every defense they had against the original lender. If the original loan had problems, such as a fraudulent appraisal, missing disclosures, or overcharged fees, the borrower can raise those same defenses against whoever now holds the debt.5Uniform Commercial Code. Uniform Commercial Code 9-404 – Rights Acquired by Assignee; Claims and Defenses Against Assignee
Notification rules depend on the loan type. For federally related mortgage loans, the Real Estate Settlement Procedures Act requires the outgoing servicer to send written notice at least 15 days before the effective date of the transfer, and the incoming servicer to send its own notice no more than 15 days after.6Consumer Financial Protection Bureau. 12 CFR 1024.33 – Mortgage Servicing Transfers7Office of the Law Revision Counsel. 12 USC 2605 – Servicing of Mortgage Loans and Administration of Escrow Accounts The incoming servicer’s notice has to include new payment instructions.
For auto loans, personal loans, commercial debt, and other non-mortgage obligations, UCC Article 9 sets the rule. A borrower can keep paying the original lender until receiving authenticated notice that the debt has been assigned and that future payments should go to the new owner. After notice, the borrower must pay the new owner to get credit for the payment. If the borrower asks for proof that the assignment actually happened, the new owner has to provide it, and until they do, the borrower can safely keep paying the original lender.8Uniform Commercial Code. Uniform Commercial Code 9-406 – Discharge of Account Debtor; Notification of Assignment
Tax Treatment for the Seller
When a financial institution sells a loan portfolio, tax treatment turns on whether the sale price exceeds the seller’s adjusted basis in the debt. Sell for more, and the difference is a capital gain. Sell for less, and the difference is a capital loss. Loans held more than one year produce long-term gains or losses; loans held a year or less produce short-term gains or losses.9Internal Revenue Service. Topic No. 409, Capital Gains and Losses The distinction matters because long-term capital gains are taxed at preferential rates of 0%, 15%, or 20% depending on the seller’s taxable income and filing status, while short-term gains are taxed as ordinary income. Sellers report these transactions on Form 8949 and summarize them on Schedule D.