Family Loan or Gift? How the IRS Treats Money Lent to Relatives

Why the loan vs gift distinction matters before you send the money

A family member needs money, you have it, and the paperwork feels unnecessary. It is family, after all. But the moment cash moves from your account to theirs, the IRS has an opinion about what just happened, whether you asked for one or not. That transfer is either a loan, which you expect to be repaid, or a gift, which you do not. The IRS does not take your word for it after the fact. It looks at how the transaction was structured from the start.

Getting this wrong has real consequences. If you intended a loan but never documented repayment terms, the IRS can recharacterize it as a gift and apply gift tax rules retroactively, sometimes years later during an audit or an estate review. If you intended a gift but called it a loan on paper without ever expecting repayment, that mischaracterization can also create problems, particularly around the annual gift tax exclusion and any interest you claim as income you never actually collected.

This matters most for private lenders, meaning individuals, not banks, who are financing a relative's home purchase, helping a sibling start a business, or carrying a note for an adult child. The classification decision you make on day one determines how the IRS treats every payment, every year, until the loan is paid off.

What the IRS looks for: intent, documentation, and repayment terms

The IRS does not have a single bright-line test for loan versus gift, but courts and IRS guidance consistently point to the same factors: was there a genuine intent to repay, is there a written agreement, does the agreement specify an interest rate and a maturity date, is there a fixed repayment schedule, and does the lender actually enforce the terms if a payment is missed.

The strongest evidence of a real loan is behavior, not just paperwork. If you lend $50,000 to your daughter for a down payment and never mention it again, never ask for a payment, and never send a reminder when one is missed, the IRS will look at that pattern and conclude the "loan" was a gift dressed up in loan language. A note with no expectation of repayment is not a loan no matter what the document says.

Conversely, a family loan that has a signed promissory note, a defined interest rate, a repayment schedule, and an actual history of payments received looks exactly like any other loan, because functionally it is one. The relationship between the parties does not change the tax analysis. What changes it is whether the transaction has the substance of a loan.

The Applicable Federal Rate and why charging no interest can trigger a gift tax issue

The IRS publishes the Applicable Federal Rate, or AFR, monthly. It is the minimum interest rate the IRS considers arm's length for a given loan term, short-term for loans up to 3 years, mid-term for 3 to 9 years, and long-term for anything longer. If you lend money to a relative below the AFR, or at 0%, the IRS treats the loan under what are called the below-market and imputed interest rules.

Here is the mechanic that catches people off guard: if you charge less interest than the AFR requires, the IRS imputes the difference. That means you are treated as if you received the AFR-level interest as income, even though you never actually collected it, and simultaneously treated as if you gifted that same amount back to the borrower. So a 0% family loan can generate phantom taxable interest income for the lender and a gift for gift tax purposes, in the same transaction, every year the loan is outstanding.

There is a narrow exception for loans of $10,000 or less between individuals, sometimes called the de minimis exception, but it has conditions and does not apply once the loan is used to buy income-producing property in some cases. For any loan above that threshold, pricing it at or above the applicable AFR for the loan's term is the simplest way to avoid the imputed interest problem entirely. This is a general explanation, not tax advice, so confirm the current AFR and how it applies to your specific loan with a CPA before finalizing the note.

Documentation that turns a family loan into a defensible loan, not a gift

The single most important document is a signed promissory note. It should specify the principal amount, the interest rate, whether that rate meets or exceeds the applicable AFR, the repayment schedule, what happens if a payment is missed, and whether the loan is secured by collateral such as the property being purchased.

Beyond the note itself, the paper trail should look like any other loan. That means an actual amortization schedule showing how each payment splits between principal and interest, records of the funds transfer at origination, and, critically, an ongoing record of payments received, not payments assumed. If your relative pays via Zelle, ATH Móvil, or a bank transfer, keep those records matched to the amortization schedule rather than relying on memory or a running mental tally.

If a payment is missed, treat it the way a genuine lender would: send a reminder, note the late payment, and if the pattern continues, document what happens next, whether that is a grace period, a modified schedule, or eventually forgiveness. A pattern of silently letting missed payments slide without any documented response is one of the clearest signals the IRS uses to recharacterize a loan as a gift.

How Lend. keeps amortization records and payment history that support the loan classification

Lend. was built for exactly this kind of situation, an individual lending to another individual, often a relative, who needs the loan to hold up as a loan on paper and in practice. When you set up a personal loan or seller-financed mortgage in Lend., you enter the principal, interest rate, and term once, and the platform generates a full amortization schedule automatically, so there is never a question of whether the rate you charged tracks against the terms you documented.

Every payment your relative makes, whether via ATH Móvil, Zelle, Venmo, PayPal, or ACH, is detected and matched to the correct billing period automatically, building a continuous, timestamped payment history rather than a memory of "I think they've been paying on time." Your borrower also gets their own portal to see their balance and payment history, which reinforces that both sides are treating the arrangement as a real, ongoing loan rather than an informal understanding.

None of this replaces a CPA's advice on AFR compliance or gift tax exposure for your specific situation, but it removes the most common failure point: a family loan that started with good intentions and ended up undocumented. 60-day free trial, no credit card required.