Interest-Free Promissory Note
An interest-free promissory note documents a loan with no interest charge — often used for family loans, employer advances, or friendly personal loans.
When to Use a Interest-Free
Use when lending money to a family member, friend, or employee without charging interest.
What Makes This Type Different
How a Interest-Free differs from the standard Promissory Note.
- Zero percent interest rate — principal repayment only
- IRS gift tax considerations for loans over $10,000 between family members
- Still legally enforceable for repayment
- Simpler payment schedule (principal only)
Complete Guide: Interest-Free Promissory Note
An interest-free promissory note is a written promise by a borrower to repay a specific sum of money to a lender by a specified date, without the addition of interest charges. These instruments are most commonly used in transactions between family members, close friends, employers and employees, or other parties where the relationship is such that charging interest would be inappropriate, impractical, or contrary to the purpose of the loan. While the absence of interest makes the economic terms simpler, an interest-free promissory note still requires careful drafting to document the loan amount, repayment schedule, consequences of default, and other material terms that protect both parties.
The simplicity of an interest-free note is somewhat deceptive—its apparent informality can lead parties to underestimate the legal and tax complexities it creates. When a lender makes an interest-free loan of certain amounts to a related party, the Internal Revenue Service may impute interest income to the lender and a gift to the borrower based on the Applicable Federal Rate (AFR), the minimum interest rate published monthly by the IRS. This imputed interest framework applies to loans above $10,000 and can result in unexpected tax obligations for both parties. Understanding the IRS gift loan rules is essential before executing an interest-free promissory note for a significant amount.
For family loans specifically, an interest-free promissory note serves purposes beyond the financial transaction. It documents that the transfer of money is a loan to be repaid—not a gift—which may be important for Medicaid planning (gifts within the look-back period affect eligibility), for estate equalization among multiple children, for the borrower's credit history, and for the lender's estate tax planning. A properly documented loan can be counted as an asset in the lender's estate at death, and the outstanding balance can be forgiven in the lender's will as a specific bequest to the borrower, creating additional estate planning flexibility.
Despite the absence of interest, the promissory note must address the full range of loan terms to be enforceable: the principal amount, the start date of the loan, the repayment schedule (lump sum on a date certain, installment payments, or demand), what constitutes a default, any collateral pledged to secure the loan, the governing law, and acceleration provisions allowing the lender to demand immediate repayment upon default. An interest-free note that simply says "I promise to pay $10,000 by December 31" may be legally valid but provides no mechanism for enforcement if the borrower defaults and no guidance on how disputes about the remaining balance will be resolved.
How to Create a Interest-Free: Step-by-Step
- 1
Determine the Principal Amount and Repayment Structure
State the exact principal amount being lent. Choose a repayment structure that is realistic for the borrower and acceptable to the lender: a lump-sum payment on a specific date, monthly installment payments of a fixed amount until repaid, or an on-demand loan repayable whenever the lender requests. For installment loans, calculate whether the payment amounts fully repay the principal by the final due date and include this amortization schedule as an exhibit.
- 2
Confirm the Interest-Free Nature Explicitly
State clearly that the note bears zero percent interest and that no interest will accrue on the outstanding principal balance. This unambiguous language prevents disputes about whether interest was implied by the terms or by subsequent course of dealing. Also confirm whether the borrower may prepay without penalty—most interest-free loans allow prepayment freely, since there is no interest income the lender seeks to protect.
- 3
Define Default and Remedies
Define what constitutes a default—typically a missed payment, a payment that remains unpaid after a defined grace period, the borrower's insolvency or bankruptcy filing, or death (for family loans with estate implications). Specify the lender's remedies upon default: demand for immediate repayment of the outstanding balance (acceleration), pursuit of the collateral if secured, or legal action to enforce the note.
- 4
Address Collateral if Applicable
If the interest-free loan is secured by collateral—real property, a vehicle, business assets—describe the collateral and the security interest granted. For real property collateral, a deed of trust or mortgage recorded in the county recorder's office is necessary to perfect the security interest. For personal property, a UCC financing statement may need to be filed. Perfected security interests protect the lender's priority over the collateral against the borrower's other creditors.
- 5
Execute and Store the Note Properly
The note must be signed by the borrower (and optionally witnessed or notarized). The lender should retain the original signed note—the original is the best evidence of the debt and must be surrendered to the borrower upon full repayment as evidence that the debt is satisfied. Scan a copy for your records. If a security interest is involved, complete the required filings promptly after execution.
Key Legal Considerations
IRS Imputed Interest Rules and Gift Loan Treatment
The IRS's below-market interest rules under IRC Section 7872 apply when interest-free or below-market loans are made between related parties. For "gift loans" (loans where the below-market interest is considered a gift) between individuals: loans under $10,000 are generally exempt; loans between $10,000 and $100,000 have limited imputation based on the borrower's net investment income; loans above $100,000 require full imputation of interest at the AFR. The lender is treated as receiving interest income and making a gift to the borrower each year. Failure to account for these rules can result in unexpected income tax liability for the lender and gift tax exposure for transfers that cumulatively exceed the annual gift tax exclusion.
Enforceability and the Statute of Frauds
Promissory notes are contracts—they must meet standard contract formation requirements: offer, acceptance, consideration, and mutual assent. For a promissory note, the consideration for the borrower's promise to repay is the lender's disbursement of the funds. The note must be in writing and signed by the borrower to be enforceable under most states' statutes of frauds, which apply to written promises to pay money. An oral interest-free loan agreement may be legally valid but is extremely difficult to enforce—the terms are disputed and the proof of the agreement rests on the parties' possibly conflicting recollections.
Priority Among the Lender's Other Creditors
If the borrower later files for bankruptcy or becomes insolvent, an unsecured promissory note holder is generally a lower-priority creditor than secured creditors (banks, mortgage lenders) and priority unsecured creditors (recent wages, taxes). The lender's likelihood of recovering an unsecured interest-free loan in a bankruptcy is typically low. To improve priority, lenders should consider securing the loan with collateral. Additionally, family loans made within two years of a bankruptcy filing may be challenged by the bankruptcy trustee as preferential transfers if the borrower repays the family loan while insolvent.
Forgiveness and Estate Planning Considerations
Lenders who execute interest-free promissory notes with the expectation that they will eventually forgive the loan balance must understand the gift tax implications of forgiveness. Each time the lender forgives a payment or a portion of the principal, the forgiven amount is treated as a gift from the lender to the borrower. Annual forgiveness of amounts within the annual gift tax exclusion ($18,000 per recipient in 2024) avoids gift tax; larger forgiven amounts reduce the lender's lifetime gift tax exemption. The note can be cancelled in the lender's will as a specific bequest, with the bequest counted against the borrower's inheritance share to equalize distributions among multiple children.
Common Mistakes to Avoid
Not Documenting the Loan at All
Family loans made with a handshake and no paperwork are the most common source of estate disputes—after the lender's death, the borrower may claim the transfer was a gift; the other beneficiaries may claim it was a loan that must be repaid to the estate. A signed promissory note eliminates this ambiguity. Even a simple one-page note stating the amount, the repayment date, and the borrower's signature provides essential legal clarity.
Ignoring IRS Imputed Interest Rules for Large Loans
For interest-free loans above $10,000 between related parties, consult a tax advisor before executing the note. The advisor can calculate the annual imputed interest amount, advise on any gift tax consequences, and recommend whether a below-market (but not zero) interest rate would avoid imputation while still keeping the loan economical for the borrower. Addressing the tax dimensions upfront prevents surprises at tax time.
Setting Repayment Terms the Borrower Cannot Realistically Meet
An aggressive repayment schedule that the borrower immediately defaults on creates legal complexity and family tension without serving any useful purpose. Agree on a repayment schedule that reflects the borrower's actual financial capacity. If circumstances change and the borrower cannot meet the original schedule, document any modification to the repayment terms in a written amendment signed by both parties.
Failing to Retain the Original Signed Note
The original signed promissory note is a negotiable instrument—whoever holds it is presumptively entitled to payment. Keep the original in a secure location. Do not give the original to the borrower until the loan is fully repaid. When repayment is complete, mark the note "PAID IN FULL," date it, and return it to the borrower as evidence of satisfaction.
Not Addressing What Happens if the Borrower Dies Before Full Repayment
A promissory note does not automatically terminate if the borrower dies—the outstanding balance becomes a claim against the borrower's estate. However, many lenders do not intend to pursue the borrower's estate, particularly in family contexts. Address this explicitly in the note: does the balance accelerate at death? Is it forgiven? Is it claimable against the estate? Clarifying this upfront prevents confusion and litigation after the borrower's death.
Other Promissory Note Types
Not quite the right fit? Explore other variants.
With Interest
Loan with a stated annual interest rate
Family Loan Note
Promissory note for a loan between family members
Business Loan Note
Promissory note for a business loan
Vehicle Loan Note
Promissory note for a vehicle loan
Real Estate Note
Promissory note secured by real property
Standard Promissory Note
View all variants and the standard template
Frequently Asked Questions
Common questions about the Interest-Free.
You Might Also Need
Documents commonly used alongside a Interest-Free.
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