Lending money to — or borrowing from — a family member feels different from a bank transaction. The terms are informal, the stakes are personal, and the consequences of default go far beyond a credit score hit. Done right, a family loan can be a win-win: the borrower gets better terms than a bank, and the lender earns a fair return. Done wrong, it damages relationships, triggers IRS scrutiny, and ends in loss for everyone. Here’s how to do it right.
IRS Rules for Family Loans
Family loans are not free of tax obligations. The IRS has specific rules:
The Applicable Federal Rate (AFR)
For loans above $10,000, the IRS requires that the lender charge at least the Applicable Federal Rate (AFR) — the minimum interest rate set by the Treasury monthly. If you charge less than the AFR, the IRS may:
- Treat the forgone interest as a gift from lender to borrower
- Require the lender to report the forgone interest as income anyway
- Treat the loan as partially a gift, which can affect gift tax exclusions
May 2026 AFR (approximate):
| Loan Term | AFR |
|---|---|
| Short-term (3 years or less) | ~4.5% |
| Mid-term (3–9 years) | ~4.3% |
| Long-term (9+ years) | ~4.5% |
AFR rates are published monthly at irs.gov. Check the current rate when structuring a loan.
De Minimis Exceptions
- Loans under $10,000: AFR rules don’t apply (if not for purchasing income-producing assets)
- Loans $10,001–$100,000: AFR applies, but imputed interest is capped at the borrower’s net investment income for the year
- Loans above $100,000: Full AFR rules apply with no cap
Interest Income Reporting
If the lender receives interest payments, that interest is taxable income — reported on Schedule B of Form 1040 just like bank interest.
How to Structure a Family Loan Properly
Step 1: Decide Whether a Loan Is the Right Choice
Before lending money to a family member, ask yourself:
- Can I afford to lose this money entirely if it’s not repaid?
- Would I be resentful if the borrower can’t repay?
- Is the borrower demonstrably capable of repaying (income, employment)?
- Would I be okay with everyone in the family knowing about this loan?
If the answer to any of these is uncomfortable, consider whether a gift — with no expectation of repayment — is more honest than a loan that’s expected to strain the relationship.
Step 2: Draft a Written Promissory Note
A promissory note should include:
- Names and addresses of lender and borrower
- Loan amount (principal)
- Interest rate (at least the AFR if above $10,000)
- Repayment schedule (monthly, quarterly, lump sum at a date)
- What happens upon default (late fees, acceleration of full balance)
- Signatures of both parties, dated
- (Optional) Notarization for additional legal validity
Templates for promissory notes are available through legal document services. For loans above $50,000, have an attorney draft or review the note.
Step 3: Set a Realistic Repayment Schedule
Match the repayment schedule to the borrower’s actual cash flow:
- Monthly payments work if the borrower has steady employment
- Quarterly or annual payments may work for self-employed borrowers
- Balloon payments (interest only, then principal at a set date) work for short-term bridge needs
Build in a grace period for late payments (e.g., 10-day grace before a late fee applies) — this reduces tension over occasional timing issues.
Step 4: Keep Records
- Keep a copy of the signed promissory note
- Record every payment received
- Issue year-end statements showing interest paid (this helps both parties at tax time)
- If the loan is forgiven, document the forgiveness in writing — and understand gift tax implications for large amounts
Practical Tips for the Lender
Treat it like a business transaction: The more formally the loan is documented and handled, the more likely it is to be repaid. Borrowers often take informal “family loans” less seriously than bank loans.
Don’t over-extend: Only lend what you can afford to never see again. A family loan that strains your own emergency fund or retirement savings is too large.
Consider charging the AFR rate: Charging AFR (rather than 0%) is not being cold to family — it’s being fair. The AFR is far below commercial lending rates (currently 4–5% vs. 10–20% on personal loans). The borrower still benefits significantly; you simply protect your tax position and create a real repayment expectation.
Practical Tips for the Borrower
Don’t borrow more than you can clearly repay: Your lender is family. A default damages the relationship for years. Only borrow an amount you’re genuinely confident you can repay on the agreed schedule.
Make payments consistently: Even if the lender says “don’t worry about it this month,” make the payment. The relationship with your lender depends on your reliability.
Communicate early if you’re struggling: If circumstances change and you can’t meet the schedule, talk to the lender immediately — before missing payments. A renegotiated schedule maintains trust; a missed payment without explanation destroys it.
When a Family Loan Is Tax-Deductible for the Borrower
Interest on a family loan is not deductible for most personal expenses (same as other personal loan interest). However, if the loan is used for:
- Purchasing a primary or secondary residence (and the loan is secured by the property) — mortgage interest deduction may apply
- Business investment — business interest deduction rules apply
For most family loans for personal expenses (car, debt consolidation, etc.), interest paid to a family member is not tax-deductible by the borrower.
The Bottom Line
Family loans work when they’re structured like real loans — written agreement, fair interest rate, realistic schedule, and clear expectations. Informal handshake deals frequently result in unpaid balances and lasting family tension. Protect both parties by documenting everything before any money changes hands.
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The content on Wealthvieu is for informational purposes only and should not be considered financial, tax, or investment advice. Consult a qualified professional before making financial decisions. Full disclaimer · Editorial policy