The Cost of “Just This Once”
Lending money to someone you care about feels generous. It often backfires. A 2022 LendingClub survey found roughly 40% of people who lent money to family or friends lost at least some of it. The cost of those informal loans isn’t just the dollars that never come back. It’s the birthdays that get awkward, the silence around the holidays, and the family group chat that suddenly feels tense.
If you’re going to do it in 2026, treat it like the financial transaction it actually is – with a contract, an interest rate, and a tax strategy. Here’s what that looks like in practice.
The Tax Reality Most People Ignore
The IRS treats loans between people very differently from gifts. In 2026, you can give any individual up to $19,000 per year without filing a gift tax return. Anything above that counts against your lifetime exemption. If you lend $30,000 to your sister without charging interest and without a written agreement, the IRS can recharacterize that loan as a gift and require you to file a Form 709.
This matters even if you never owe a gift tax (most Americans don’t). What matters is the paper trail. If the borrower is ever audited, divorced, sued, or applies for Medicaid within five years of receiving the money, the loan can be challenged as a gift. A sibling pursuing Medicaid for a parent can ask where the $40,000 came from three years ago. Without a signed note, the answer is uncomfortable for everyone involved.
The Applicable Federal Rate Forces Your Hand
If you charge interest below the IRS “applicable federal rate” (AFR), the IRS imputes interest to you as if you had received it. AFRs change monthly and vary by loan length. In late 2025, the long-term AFR for loans exceeding nine years hovered around 4.5%, while short-term rates were lower. Use the official rate from the month you fund the loan, then charge at least that much.
This isn’t a punishment. It’s actually useful. Charging even a token interest rate signals to the IRS that this is a real loan, not a disguised gift. It also gives the borrower a tax break in some cases. Mortgage interest on a primary residence is deductible, so a properly structured loan for a home down payment can save real money at tax time. Charging a small AFR rate can be more generous than giving the money outright.
The Promissory Note That Actually Protects You
A text message saying “I’ll pay you back, promise” is not a contract. A real promissory note includes:
- The full legal names and addresses of both parties
- The exact principal amount and the date the funds were transferred
- The interest rate, matching or exceeding the AFR for the loan term
- A repayment schedule – monthly, quarterly, or a balloon at maturity
- Default terms and late fees if a payment is missed
- What happens if the borrower dies before repayment (typically the estate pays)
- Signatures and dates, ideally notarized
You can write a valid note yourself for a few hundred dollars, but for anything over $25,000 or any loan that crosses state lines, spend the $300 to $500 on a lawyer to draft it. A small investment here is the difference between “we agreed” and “we have a contract.” Templates from Nolo or Rocket Lawyer work for simple cases, but they’re not a substitute for advice when the stakes are high.
Use a Platform When the Relationship Is Too Important
Services like Lenme, SoLo, and a handful of credit-union family loan programs now exist specifically for this. The borrower posts their request, the platform checks creditworthiness, and you fund a real installment loan with documented history. The interest rates are higher than you’d charge personally, but the trade-off is the platform handles collection, credit reporting, and the awkward conversations.
For smaller amounts under $5,000, Venmo and Zelle now let you tag transactions as “goods and services” or “friends and family.” Marking them correctly affects tax reporting and your protections if things go wrong. Marking a $4,000 loan as “friends and family” hides it from the IRS and removes your chargeback rights if the other person denies receiving it. That’s not privacy, that’s a mistake.
When Things Go Sideways
Even with a contract, people stop paying. Before sending a demand letter or filing in small claims court, have one honest conversation. People lose jobs, get sick, go through divorces. A six-month pause with adjusted terms beats destroying a relationship. If you renegotiate, write down the new terms and have both parties sign – otherwise you’ve now given a gift equal to the amount you forgave, and you’re back to filing a gift tax return on that piece too.
If informal resolution fails, your state sets the statute of limitations for collecting on a promissory note – typically three to six years. After that, you can still sue, but the borrower can raise the statute as a defense. Older debts with no recent acknowledgment (a payment, a written promise) are hard to win. This is why writing down every interaction matters from day one.
Common Scenarios Worth a Closer Look
Down payment loans deserve their own caution. If you lend money for a home purchase and the borrower later applies for Medicaid, the look-back period is five years. A properly documented loan at AFR with active amortization is defensible; a sudden lump-sum “advance” with no paper trail is treated as a divestment and can disqualify benefits. For business loans to a family member, structure the loan at a real rate and treat missed payments seriously – co-mingling family and business finances is how small businesses fail.
Medical loans are more forgiving emotionally but should still be documented. Most hospitals will set up interest-free payment plans with better terms than a relative charging 0% interest on a $50,000 lump sum. Direct the borrower there first.
If You’re the Borrower
A family loan isn’t free money. It’s a contract. Pay on time, every time. If you can’t, talk to the lender before you miss a payment. Repayment performance often gets reported to credit bureaus when the note is structured that way, so a family loan can actually help you build credit. Skip payments, and you damage both your credit and your relationship at the same time.
The Real Math
A $20,000 “loan” with no interest, no paperwork, and no plan to repay isn’t a loan. It’s a $20,000 gift you didn’t intend to give, plus an uncomfortable Thanksgiving. Spending $500 on a proper promissory note and a half hour of tax research protects the relationship and keeps the IRS out of your kitchen. If the other person won’t sign a note, you have your answer about whether you should hand over the money.
Image credit: “Saving Money” by free pictures of money, via Flickr. Licensed under CC BY 2.0.
