A loan note is a written, signed promise by a borrower to pay a specific sum of money to a lender, either on demand or by a set date, on the terms spelled out in the document itself. It records the principal, the interest, the repayment schedule, and what happens if the borrower falls behind. Most loan notes used in U.S. commerce also qualify as negotiable instruments under the Uniform Commercial Code, which means they can be endorsed and sold much like a check, and that tradability gives them real value as standalone financial assets.
The note is the loan. A separate loan agreement or security agreement may sit alongside it, but the note itself is the instrument the lender holds, sues on, or sells.
What Has to Be in a Loan Note
A loan note needs several specific elements to work as an enforceable agreement. Missing or ambiguous terms tend to benefit whoever wants to avoid paying.
Principal and Interest
The principal is the exact dollar amount the lender is providing, and every other number in the note flows from it. Interest is the cost of borrowing that principal. It can be fixed for the life of the loan or variable, adjusting periodically against a benchmark. Variable-rate notes commonly reference the Secured Overnight Financing Rate, or SOFR, which replaced LIBOR as the standard benchmark for U.S. dollar lending.1Federal Reserve Bank of New York. How SOFR Works The note should say whether interest is simple or compound, because the distinction changes what the borrower actually pays.
Maturity Date and Payment Schedule
The maturity date is the deadline by which the whole balance must be repaid. If the note names a definite date, both sides have a clear endpoint. If it doesn’t, the note defaults to being payable on demand, which lets the lender call in the full balance whenever they choose.2Cornell Law School. UCC Law 3-104 – Negotiable Instrument Leaving out a maturity date by accident reshapes the entire relationship.
The payment schedule sets out how the borrower repays: monthly installments, quarterly payments, a lump sum at maturity, or a hybrid such as smaller payments followed by a balloon at the end. For consumer loan notes, federal law requires the lender to disclose the number, amount, and timing of all scheduled payments before the borrower signs.3eCFR. 12 CFR 1026.18 – Content of Disclosures
Acceleration, Default, and Late Fees
An acceleration clause lets the lender demand the entire outstanding balance at once when the borrower defaults. Without it, the lender has to chase each missed payment individually. The note should define exactly what counts as a default: a missed payment, failure to keep insurance on collateral, breach of a financial covenant, or any other event the parties negotiate.
Acceleration usually isn’t instantaneous in practice. The lender typically must send written notice of the specific default and give the borrower a window to fix it, often 30 days. Only if the cure period runs out does the right to accelerate kick in. Courts frequently enforce this notice-and-cure structure strictly, even when the note’s language looks like it allows immediate acceleration.
Late fees generally apply when a payment arrives more than 10 to 15 days past its due date. The dollar amount or percentage allowed varies by state, and overreaching fees can be challenged as unenforceable penalties. Some notes also carry a default interest rate, a higher rate that kicks in on the whole outstanding balance once a default occurs.
Governing Law
A governing law clause names the state whose laws will be used to interpret the note and resolve disputes. Parties in different states can negotiate which jurisdiction applies. Without the clause, courts fall back on conflict-of-law rules, which can produce unpredictable outcomes on interest ceilings and enforcement procedures.
Common Types of Loan Notes
Secured Notes
A secured loan note names specific collateral, such as real estate, equipment, or financial accounts, that the lender can seize if the borrower defaults. The lender’s claim on the collateral must be properly recorded through a process called perfection, which usually means filing a financing statement with the appropriate government office. Without perfection, the security interest can lose priority to other creditors, defeating the purpose of taking collateral in the first place.
Unsecured Notes
An unsecured note relies on the borrower’s promise and creditworthiness alone. If the borrower defaults, the lender’s path is a lawsuit for a money judgment, then collection against the borrower’s general assets. That process is slower, more expensive, and carries a real risk that little collectible remains by the time judgment is entered. Unsecured notes tend to carry higher interest rates to price in that added risk.
Corporate Notes
Businesses use loan notes to raise capital, and these instruments often include detailed covenants that go well beyond the basics of a personal loan. Financial covenants might require the borrower to keep a minimum debt-to-equity ratio or a set amount of cash on hand. Operational covenants might block the sale of major assets or bar new debt without the lender’s consent. Breaching any covenant can trigger default and acceleration, even if every payment has been made on time.
Convertible Notes
Startups frequently use convertible notes to bridge the gap between initial funding and a larger equity round. The note starts as ordinary debt, but the holder can convert the outstanding principal and accrued interest into equity shares when the company raises a qualifying financing round. Conversion usually happens at a discount to the price paid by new investors, or is subject to a valuation cap that limits how high the conversion price can go.
Demand Notes
A demand note has no fixed maturity date. The full balance is due whenever the lender asks for it.2Cornell Law School. UCC Law 3-104 – Negotiable Instrument This structure gives the lender maximum flexibility and creates real uncertainty for the borrower, who could face a payoff request at any time. Demand notes turn up often in lines of credit between affiliated businesses and in family lending arrangements. If you’re borrowing under one, keep enough liquidity available to cover the balance on short notice.
Negotiable Instruments and Why the Classification Matters
Not every IOU is a negotiable instrument. Under Article 3 of the Uniform Commercial Code, a note earns that status only when it contains an unconditional promise to pay a fixed amount of money, payable either on demand or at a definite time.2Cornell Law School. UCC Law 3-104 – Negotiable Instrument The promise can’t hinge on some outside event. A note that says “I’ll pay you $50,000 if my business turns a profit” is conditional and doesn’t qualify.
The classification matters because it controls how easily the note can change hands and what legal protections the new holder receives. A negotiable note transfers through endorsement and delivery, similar to signing over a check. A non-negotiable note can still be transferred, but only through a formal assignment, and the buyer inherits more legal risk.
Holder in Due Course Protection
When a negotiable note is properly endorsed and delivered, a new holder who pays value, acts in good faith, and has no reason to know about problems with the note earns a special legal status called holder in due course. That status carries powerful protection: the holder takes the note free of most defenses the borrower could have raised against the original lender, such as breach of the underlying contract or failure to deliver promised goods. Only a narrow set of defenses survives against a holder in due course, including infancy, duress, lack of legal capacity, certain types of fraud, and discharge in bankruptcy.4Cornell Law School. UCC 3-305 – Defenses and Claims in Recoupment That protection is what makes negotiable notes attractive to buyers on the secondary market.
Assignment of a Non-Negotiable Note
When a note doesn’t qualify as a negotiable instrument, the transfer happens through a legal assignment. The important difference is that the new holder inherits all the defenses the borrower could raise against the original lender. If the original lender breached the deal, the borrower can raise that defense against whoever bought the note.
For any assignment to redirect the borrower’s payments, the borrower has to receive proper notice identifying the new holder and telling them where future payments should go. Until that notice arrives, the borrower can keep paying the original lender and get full credit for those payments.5Cornell Law School. UCC 9-406 – Discharge of Account Debtor; Notification of Assignment
When a Loan Note Becomes a Security
A loan note that looks like straightforward debt can cross into securities law, bringing registration requirements and antifraud rules most private lenders never expect. The Supreme Court addressed this in Reves v. Ernst & Young, holding that every note is presumed to be a security unless it strongly resembles a recognized category of non-securities.6Justia Law. Reves v. Ernst and Young
To rebut that presumption, courts weigh the motivations behind the transaction, how broadly the note is being distributed, the reasonable expectations of the buying public, and whether another regulatory scheme already reduces the risk enough that securities law protection is unnecessary.6Justia Law. Reves v. Ernst and Young A personal loan between friends almost certainly passes. A note offered to dozens of investors through an online platform probably doesn’t.
Signing and Delivery
A loan note becomes enforceable when the borrower signs it and delivers it to the lender. The signature can be handwritten or electronic. Under the federal ESIGN Act, a signature, contract, or other record can’t be denied legal effect solely because it’s electronic.7Office of the Law Revision Counsel. 15 USC 7001 – General Rule of Validity An electronic signature includes any electronic sound, symbol, or process the signer adopts with intent to sign. Most states have parallel laws reinforcing the same principle. Notarization isn’t legally required for most loan notes, though lenders sometimes request it to make enforcement easier if the borrower later disputes the signature.
What Happens on Default
When a borrower defaults, the lender’s options depend on whether the note is secured. For an unsecured note, the lender files a breach-of-contract lawsuit seeking a money judgment. If the court rules in the lender’s favor, collection follows through wage garnishment, bank levies, or liens on the borrower’s property, all subject to state exemption laws that protect certain assets from creditors.
For a secured note, the lender can go after the collateral directly. With real estate collateral, the lender starts foreclosure proceedings, which may be judicial (through the courts) or non-judicial (through a private sale process), depending on the state and the terms of the security instrument. Non-judicial foreclosures are faster but come with strict statutory requirements for notice and timing that vary by state.
If the collateral sells for less than the borrower owes, the shortfall is called a deficiency. Whether the lender can pursue a deficiency judgment against the borrower depends heavily on state law. Many states prohibit deficiency judgments after non-judicial foreclosures; others allow them with limitations. A borrower facing foreclosure should know whether their state permits deficiency recovery, because it determines whether losing the collateral ends the obligation or leaves a balance still owed.
How Long a Lender Has to Sue
A lender doesn’t have unlimited time to sue on a defaulted loan note. Under the UCC’s default rule, the statute of limitations for enforcing a note payable at a definite time is six years after the due date. If the lender accelerated, the six-year clock starts from the acceleration date.8Cornell Law School. UCC 3-118 – Statute of Limitations Some states have adopted shorter or longer periods, so the governing law clause in the note can matter a great deal.
A few events can restart or pause that clock. A partial payment by the borrower after default restarts the limitations period in many states, running from the date of the most recent payment. Written acknowledgment of the debt can have the same effect. Lenders who sit on defaulted notes too long can lose the right to enforce them entirely.
Tax Points for Borrowers and Lenders
Reporting Interest
A lender who receives at least $10 in interest during the year must report that income to the IRS, and if the borrower paid $10 or more, the lender must also issue a Form 1099-INT to the borrower.9Internal Revenue Service. About Form 1099-INT, Interest Income Private lenders between family or friends sometimes overlook this, but the IRS expects the income reported regardless of how informal the arrangement feels.
Below-Market Loans and Imputed Interest
Lending money at an artificially low rate, or at no interest at all, can trigger tax consequences under the imputed interest rules. The IRS treats a below-market loan as if the lender charged the applicable federal rate (AFR) and gifted the difference back to the borrower. For a demand note, the relevant benchmark is the federal short-term rate. For a term loan, the rate depends on the loan’s duration.10Office of the Law Revision Counsel. 26 USC 7872 – Treatment of Loans with Below-Market Interest Rates As of April 2026, the short-term AFR is 3.59% and the mid-term rate is 3.82%, compounded annually.11Internal Revenue Service. Rev. Rul. 2026-7 – Applicable Federal Rates
A useful exception exists for loans between individuals: if the total outstanding balance stays at or below $10,000, the imputed interest rules don’t apply, provided the loan isn’t used to purchase income-producing assets. For gift loans up to $100,000, imputed interest is limited to the borrower’s actual net investment income for the year.10Office of the Law Revision Counsel. 26 USC 7872 – Treatment of Loans with Below-Market Interest Rates
Consumer Protections Layered on Top
Truth in Lending Disclosures
When a lender extends consumer credit secured by a loan note, federal law requires specific disclosures before the borrower signs. Under Regulation Z, the lender must present a Truth in Lending Disclosure Statement showing the annual percentage rate (APR), the finance charge in dollars, the amount financed, the total of all payments over the life of the loan, and the full payment schedule.3eCFR. 12 CFR 1026.18 – Content of Disclosures The APR and finance charge must be displayed with equal prominence.12eCFR. 12 CFR Part 1026 – Truth in Lending (Regulation Z) These requirements apply to creditors, not to private one-off loans between individuals.
Military Interest Caps
Active-duty service members receive protections that override whatever a loan note says. The Servicemembers Civil Relief Act caps interest at 6% on loans the borrower took out before entering active duty, covering auto loans, mortgages, credit cards, and student loans. The borrower must notify the lender in writing and provide a copy of their military orders to activate the cap. Separately, the Military Lending Act limits interest to 36% on most consumer loans taken out while the borrower is on active duty, though it excludes purchase-money loans where the credit is secured by the item being bought.13Consumer Financial Protection Bureau. I Am in the Military, Are There Limits on How Much I Can Be Charged for a Loan
Debt Collection Rules for Note Buyers
Buying someone else’s loan note can pull the buyer under the Fair Debt Collection Practices Act. Under federal regulations, a person who regularly collects debts owed to others is a debt collector and must follow strict rules on communication, validation notices, and prohibited practices. A key exception applies to anyone who acquires a note that wasn’t yet in default at the time of purchase.14eCFR. 12 CFR Part 1006 – Debt Collection Practices (Regulation F) Buying a performing note and servicing it normally keeps the buyer outside the FDCPA. Buying a note that’s already delinquent, and then trying to collect, likely makes the buyer a debt collector with all the compliance obligations that come with the label.
State Usury Limits
Every state sets a maximum interest rate for private loans, and charging above the ceiling can void the interest obligation entirely or expose the lender to penalties. Caps vary widely, with some states setting relatively low maximums in the single digits and others allowing rates well above 20% depending on the loan type and lender. The applicable limit often turns on whether the lender is a licensed financial institution or a private party, whether the loan is personal or business, and the dollar amount involved. Anyone making a private loan should check the usury ceiling in the state whose law governs the note before setting the interest rate, because the consequences for exceeding it can include forfeiture of all interest, treble damages, or even criminal liability in some jurisdictions.