Iou Template
I OWE YOU (IOU)
This I Owe You (the "IOU") is entered into on by and between [Borrower's name] [Lender's name]
, an individual having their usual place of living at [Address], [City], [State] [ZIP Code](the "Borrower"), and
, an individual having their usual place of living at [Address], [City], [State] [ZIP Code](the "Lender").
The Borrower and the Lender have agreed as follows:
LOAN AMOUNT. The Lender agrees to provide a loan to the Borrower under these conditions:
- Amount: (the "Borrowed Money").
Interest rate:[Interest rate percentage]% compounded daily.
- Date: [Effective date] The Borrower will receive the Borrowed Money on .
PAYMENT TERMS. The Borrower commits to repaying the full amount of the Borrowed Money to the Lender according to the following terms:
Payment on demand of the Lender (the "Due Date").
AMENDMENTS. This IOU may only be amended by an agreement in writing duly signed by the Borrower and the Lender. [Borrowed Money] [Interest Rate] [Should Borrowed Money Be]
GOVERNING LAW. This IOU shall be governed by the laws of the State of [Governing law].
IN WITNESS THEREOF, the Borrower and the Lender have executed this IOU on the day and year first above written.
THE BORROWER , , USA ____________________________ (Place for signature) THE LENDER , , USA ____________________________ (Place for signature)
Receipt date: [Receipt date]
Party 1
________________
Signature
Date: ________________
Party 2
________________
Signature
Date: ________________
What Is a Iou Template?
An Iou Template in the United States organises the details a party must supply for the purpose it serves.
The IOU serves as prima facie evidence that a debt exists, which is critical if you ever need to pursue collection through small claims court or civil litigation. Under most state statutes of limitations -- typically ranging from 3 to 6 years for written contracts (e.g., California Code of Civil Procedure Section 337 sets a 4-year limit) -- having a written IOU preserves the lender's right to sue for repayment within the applicable timeframe.
IOUs are particularly common in informal lending situations between friends, family members, or business associates where the parties want documentation without the formality of a full promissory note or loan agreement. However, any personal loan exceeding $10,000 may trigger IRS imputed interest rules under IRC Section 7872, requiring the lender to report minimum interest income regardless of what the IOU states. Understanding this distinction helps borrowers and lenders structure their agreements properly.
When Do You Need a Iou Template?
An IOU is needed whenever you lend money to a friend or family member and want written proof of the obligation. Even small amounts -- a few hundred dollars -- benefit from documentation, because memory fades and relationships strain when repayment expectations are unclear.
When a colleague borrows money for an emergency and promises to pay you back by a certain date, an IOU ensures both parties agree on the amount and timeline. If you advance funds to a business partner for shared expenses, an IOU prevents disputes about who paid what.
IOUs are also useful when splitting the cost of a large purchase -- such as shared vacation expenses or group event costs -- where one person fronts the money and others agree to reimburse. Contractors who perform small jobs before receiving payment can use an IOU to document the client's outstanding balance.
An overlooked scenario involves estate settlements: if a family member received an informal loan from a deceased relative, an IOU in the estate records clarifies whether the amount should be deducted from their inheritance. Without written documentation, proving the existence of a debt in probate court becomes extremely difficult, and the lender's estate may lose the right to collect entirely.
What to Include in Your Iou Template
The borrower's and lender's full legal names and addresses must be clearly stated to identify the parties. Ambiguous identification -- using only first names or nicknames -- can make enforcement impossible if the matter goes to court.
The principal amount owed should be written in both numerals and words to prevent disputes over the sum. If the number and written amount conflict, courts generally follow the written-out version under UCC Section 3-114.
The date of the IOU establishes when the debt was acknowledged, which is important for statute of limitations calculations. A repayment date or schedule specifies when the borrower must return the funds -- whether as a lump sum or in installments.
Interest terms, if any, must comply with state usury laws. Most states cap interest rates on personal loans; for example, New York General Obligations Law Section 5-501 limits interest to 16% annually, and charging above the legal maximum can void the entire debt in some jurisdictions.
A default clause should specify what happens if the borrower fails to repay on time, including whether the full balance becomes immediately due (an acceleration clause) and whether the borrower is responsible for collection costs and attorney's fees.
Both parties must sign and date the document. While notarization is not legally required for an IOU to be valid, having the signatures notarized adds an extra layer of authenticity that courts find persuasive. A witness signature further strengthens the document's evidentiary value in case either party later denies signing.
Cite this page
Reference this free template in an article, syllabus, or research note:
Forms Legal. (2026). Iou Template (United States) [Legal document template]. Forms Legal. https://forms-legal.com/usa/financial/loans/iou-template
"Iou Template (United States)." Forms Legal, 2026, https://forms-legal.com/usa/financial/loans/iou-template.
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author = {{Forms Legal}},
title = {Iou Template (United States)},
year = {2026},
howpublished = {\url{https://forms-legal.com/usa/financial/loans/iou-template}},
note = {Free legal document template. Based on Uniform Commercial Code (UCC §3)}
}Also available for these jurisdictions:
Frequently Asked Questions
An IOU is legally binding when it reflects a genuine debt and meets the basic requirements of a contract, including an agreement that one party owes money to another and consideration such as the loan of funds. An IOU acknowledges that a debt exists and states the amount owed, the parties, and ideally the date, but a basic IOU is less detailed than a promissory note. To strengthen enforceability, the document should be signed by the borrower, state the amount clearly, and include repayment terms if the parties agreed to them. Courts generally enforce written acknowledgments of debt, and the IOU serves as evidence that the borrower owes the stated sum. While an IOU can be enough to prove a debt, it provides weaker protection than a promissory note because it may omit interest, a repayment schedule, and default terms. Because an enforceable IOU depends on showing a real debt, the document should be accurate and signed by the person who owes the money.
The difference between an IOU and a promissory note is the level of detail and the strength of the legal commitment. An IOU is a simple acknowledgment that one person owes money to another, stating the amount and the parties, and it confirms that a debt exists. A promissory note is a more formal and complete document that contains a borrower's unconditional promise to repay a specific sum, along with the interest rate, the repayment schedule, the maturity date, and what happens on default. Because the promissory note spells out the repayment terms and obligations, it provides stronger evidence and is easier to enforce, and it is generally preferred for larger or more formal loans. An IOU may be adequate for a small, informal loan between people who trust each other, but it can leave gaps about interest and timing. Because the promissory note offers more protection to the lender, borrowers and lenders entering a significant loan often use a note rather than an IOU.
To be effective, an IOU should include the full names of the lender and borrower, the exact amount owed, the date the IOU is created, and the signature of the borrower acknowledging the debt. Including the date the money was lent and any agreed repayment terms, such as a due date or installment schedule, makes the document more useful and easier to enforce. If the parties agreed to interest, the IOU should state the rate, since without a stated rate a simple IOU may not provide for interest. Specifying the method of repayment and what happens if the borrower fails to pay adds clarity, though these terms move the document closer to a promissory note. Keeping the IOU signed and stored safely preserves it as evidence of the debt. Because the borrower's signature and a clear statement of the amount are the core of an enforceable acknowledgment, an effective IOU should at minimum contain those elements along with the parties and date.
You can charge interest on an IOU if the parties agree to it and the IOU states the interest rate, but a basic IOU that is silent on interest generally does not provide for it. To charge interest, the document should specify the rate and how it is calculated, such as a fixed annual percentage, so the borrower is clearly obligated to pay it. Interest rates are also subject to state usury laws, which set maximum rates that lenders may charge; an interest rate exceeding the legal limit can be unenforceable or expose the lender to penalties, with the limits varying by state and type of loan. Because a simple IOU often omits interest, lenders who want to charge it should state the rate clearly or use a promissory note designed to include interest, repayment, and default terms. Confirming that the chosen rate complies with the applicable state usury limit protects the lender. Documenting the interest terms in writing avoids disputes about whether and how much interest is owed.
If a borrower does not pay an IOU, you can enforce it by demanding payment and, if necessary, suing to recover the debt, using the IOU as evidence that the money is owed. The first step is usually a written demand for payment, which may prompt repayment and creates a record of your effort. If the borrower still does not pay, you can file a claim in small claims court for amounts within that court's limit, which offers a faster and less expensive process, or in a higher court for larger sums. The IOU, especially when signed and stating the amount and parties, supports your claim, though a more detailed promissory note provides stronger proof of the terms. You must also bring the action within the statute of limitations for written contracts in your state, which varies but is often several years. Because an unsigned or vague IOU is harder to enforce, keeping a signed, clear document and acting within the limitations period improves your ability to collect.
This template is provided for informational purposes only and does not constitute legal advice. Laws vary by jurisdiction and change over time. Consult a qualified attorney for advice specific to your situation.Full disclaimer
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