Lending money to a friend follows the exact same IRS interest rules as lending to a relative. Most people never learn that, because "family loan" articles rarely mention friends by name. If you hand a friend more than $10,000, the Applicable Federal Rate rules under IRC Section 7872 apply whether you share a last name or not, and skipping a written agreement removes the one thing that makes a friend loan easy to prove in court later.
The legal side is nearly identical to a family loan. The relationship side is not. There's no holiday dinner forcing an awkward conversation, no shared parent to mediate, and no unwritten assumption that "we're family, it'll work out." A friend loan either gets documented and repaid on schedule, or it quietly ends the friendship. Here's how to protect both the money and the relationship.
Is It a Gift or a Loan? Decide Before You Send the Money
Ambiguity is what destroys friendships, not the unpaid balance itself. Before you transfer a dollar, both of you need to agree, out loud, on one of two things: this is a gift with no expectation of repayment, or this is a loan with specific terms.
With family, courts sometimes lean toward presuming a transfer between close relatives was a gift unless the lender can show otherwise, especially parent to child. Between friends, there's no such presumption either way. That cuts both ways: a friend can't hide behind "I thought it was a gift" as easily, but you also can't rely on family loyalty to paper over vague terms. You need actual proof of what you agreed to.
If you're not willing to treat it as gone, don't lend it. A useful test: could you comfortably attend this friend's wedding next year if the money never came back? If the honest answer is no, either lend a smaller amount or don't lend at all. For a fuller framework on deciding whether to lend in the first place, see how to say no to a loan request, which applies just as well to a friend as to a relative.
The Tax Rules Are the Same as a Family Loan (Almost Nobody Checks This)
Section 7872 of the Internal Revenue Code governs "any gift loan directly between individuals." It does not say "relatives." A $30,000 interest-free loan to your college roommate is treated the same way as a $30,000 interest-free loan to your sister.
Here's what that means in practice:
- Loans of $10,000 or less between you and your friend are generally exempt from the imputed-interest rules (the de minimis exception), as long as the money isn't used to buy income-producing assets like stocks or rental property. If it is used that way, the exception disappears even under $10,000.
- Loans above $10,000 that charge no interest, or less interest than the IRS's Applicable Federal Rate, can trigger "imputed interest": the IRS treats you as if you'd received interest income you never collected, and taxes you on it anyway.
- The AFR changes every month and depends on the loan's term. Rather than relying on a number that will be outdated by the time you read this, check the current AFR and minimum-interest calculator before you set a rate.
None of this requires the word "family" anywhere in the transaction. If your friend loan crosses $10,000, the safest move is to charge at least the AFR, document it, and treat the interest as reportable income on your return. This is not tax advice; for a loan of any size, a CPA can confirm your specific filing obligations.
Put the Terms in Writing (Friends Skip This More Than Family Does)
Family loans at least get talked about at dinner. Friend loans often happen over a text message and a bank transfer, with nothing else. That's the single biggest mistake you can make.
A written agreement, sometimes called a promissory note, doesn't need to be complicated. At minimum it should state:
- The exact amount lent and the date
- The interest rate (even if it's 0%, say so explicitly)
- The repayment schedule: lump sum, monthly installments, or a specific end date
- What happens if a payment is missed
- Both parties' signatures
You don't need a lawyer to draft this, and in most states you don't need it notarized either, though notarizing can help if you ever need to prove the document wasn't altered after signing. For the specific situations where notarization does matter, see does a family loan agreement need to be notarized. For the document itself, the family loan agreement guide covers every clause you need, and you can create a free loan agreement in a few minutes rather than starting from a blank page.
Send the money by bank transfer or check, never cash, and reference the loan in the memo line. A paper trail is worth more than a friend's word once real money is involved, and it protects the friend too: it proves exactly what they owe and when they're clear.
If Your Friend Stops Paying: What You Can Actually Do
Start with a direct, unemotional conversation before you assume the worst. Reference the specific date and amount that's overdue, not a vague "you owe me money." Most missed friend-loan payments come from embarrassment or a temporary cash crunch, not bad faith, and a calm ask often resolves it. The communication scripts in what to do when someone isn't paying back a loan work just as well for a friend as for a relative, though you'll likely skip the family-mediator step entirely.
If informal requests go nowhere, your real leverage is small claims court, and this is where friend loans and family loans genuinely diverge. Families sometimes avoid suing each other because they'll still see each other at Thanksgiving. With a friend, that social cost is lower, but so is your tolerance for losing the relationship over money you can't get back through emotional pressure alone.
Small claims limits are set by each state and change periodically, so confirm your own state's current figure before filing. A few examples as of 2026:
| State | Individual small claims limit |
|---|---|
| California | $12,500 |
| Texas | $20,000 (excludes interest and court costs) |
| New York City | $10,000 |
| Florida | $8,000 (excludes interest, costs, and attorney fees) |
You do not strictly need a written contract to file a small claims case, since a bank transfer with a memo, texts confirming the loan, or a signed IOU can all serve as evidence. But a signed promissory note is dramatically stronger proof than a memory of a conversation, which is the entire argument for writing one in the first place.
Should You Lend to This Friend at All?
A few signals are worth slowing down for before you say yes:
- This is a repeat ask. A friend who has borrowed and repaid once is a different risk than one asking for the third time.
- The amount would change your own financial position if it's never returned. Lend what you can genuinely afford to lose, not what you hope comes back.
- You'd feel resentment brewing already. If you're lending out of guilt or social pressure rather than genuine willingness, that resentment tends to surface later, usually right when a payment is late.
- The stated purpose doesn't match the ask. A request for "rent" that's really going toward a business venture changes your risk and, often, your interest rate calculation.
The emotional mechanics here mirror what happens inside families: the pressure to say yes, the fear of damaging the relationship by asking questions, and the awkwardness of enforcing terms once they're broken. The psychology behind family loans walks through those dynamics in more depth, and most of it translates directly to close friendships.
Keep the Money and the Friendship Separate
The friendships that survive a loan are usually the ones where both people stopped treating the loan as a favor and started treating it as a transaction with a friend attached, not the other way around. That means a real repayment schedule, a place to log each payment so there's no dispute about what's been paid, and a shared understanding that asking "did you get my payment?" isn't rude, it's just bookkeeping.
A dedicated tracker keeps that bookkeeping out of your group chat and off a sticky note. If you're ready to formalize the terms, you can start tracking a loan for free and give your friend their own view of the balance, so neither of you has to be the one chasing the other for an update.
This article is for general informational purposes and is not tax or legal advice. Small claims limits and tax rules change; confirm current figures with your state court and a tax professional before relying on them.
