Lending money to your adult children is one of the most generous things you can do — and one of the fastest ways to destroy a family if you do it wrong. The reason is simple: when expectations are unspoken, resentment fills the silence. Your kid thinks it was a gift. You think they’re dodging their obligation. Thanksgiving gets awkward. Then it gets ugly.
The good news is that nearly every parent-child lending disaster is preventable. But prevention requires you to treat the arrangement with the same seriousness you’d give a stranger — because that’s exactly the standard the IRS and the courts will apply.
The IRS Doesn’t Care That It’s Family
Before you write a check, understand the tax landscape. The IRS watches intra-family loans closely because they’re a classic vehicle for disguised gifts and estate-planning gamesmanship. If you lend your child money without charging interest — or charge below the Applicable Federal Rate (AFR) — the IRS may treat the forgone interest as a taxable gift from you to your child. For loans above $10,000, this isn’t optional. You must charge at least the AFR published monthly by the IRS, or you risk triggering gift tax consequences and imputed interest income on your own return.
For 2024, mid-term AFRs (loans of 3–9 years) hover around 4–5%, depending on the month. Yes, that may feel strange charging your own kid interest. But charging a modest, compliant rate protects both of you. You can always forgive portions of the loan later using your annual gift tax exclusion ($18,000 per recipient in 2024), and that strategy is far cleaner than trying to explain a zero-interest $200,000 loan to the IRS after the fact.
Put It in Writing — No Exceptions
A handshake loan between parent and child is not legally meaningless, but it’s dangerously close. Without a written promissory note, you have almost no ability to enforce repayment if the relationship sours, your child divorces, or either party dies unexpectedly. Courts routinely treat undocumented family transfers as gifts, especially when there’s a history of parents helping kids financially. The legal burden to prove otherwise falls entirely on you.
Your written agreement should include, at minimum:
- Principal amount and date of disbursement
- Interest rate (at or above the AFR)
- Repayment schedule — monthly, quarterly, or balloon payment with a specific maturity date
- Late payment terms — grace period, late fees, and what constitutes default
- Security interest — whether the loan is secured by property, a vehicle, or unsecured
- Prepayment rights — can the borrower pay it off early without penalty?
- What happens upon death of either party — does the balance become due, get forgiven, or offset against inheritance?
Both parties should sign the note. Ideally, have it notarized. Keep copies in a place your executor can find them.
Secured vs. Unsecured: A Real Decision With Real Consequences
If you’re lending a substantial amount — say, a down payment or the full purchase price of a home — seriously consider securing the loan with a recorded deed of trust or mortgage on the property. An unsecured promissory note makes you a general creditor. If your child later faces bankruptcy, you’ll be behind the mortgage lender, credit card companies, and the IRS in the repayment line. A properly recorded security interest gives you priority and legal leverage.
Yes, this means filing paperwork with your county recorder’s office. Yes, your child’s primary mortgage lender needs to know about it (hiding a second lien is mortgage fraud, full stop). Many conventional and FHA lenders will allow family-sourced secondary financing under specific conditions. Talk to the lender before closing, not after.
The Divorce Problem Nobody Wants to Discuss
Here’s the conversation that feels impossible but is absolutely essential: what happens to your loan if your child’s marriage falls apart? In a divorce, a spouse’s attorney will almost certainly argue that the “loan” from Mom and Dad was really a gift to the marital community. If there’s no signed promissory note, no record of payments, and no security interest, that argument wins more often than it loses.
In community property states — Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin — this risk is amplified. Property acquired during marriage is presumed to belong to both spouses equally. If your loan funded the down payment on a home your child bought after getting married, the spouse has a strong claim to half the equity. A written loan agreement, regular documented payments, and a recorded lien are your best defenses. Having your child and their spouse both sign the promissory note as co-borrowers is even stronger.
Estate Planning: Don’t Leave a Mess Behind
Outstanding family loans create estate-planning landmines. If you die with a $150,000 loan still owed by one child, your other children (the ones who didn’t borrow) will want to know: does that come out of the borrower’s share of the inheritance? Or does the estate forgive it, effectively giving one child $150,000 more than the others?
Your will or trust should address this explicitly. Common approaches include:
- Offset against inheritance: The outstanding balance reduces the borrowing child’s share dollar-for-dollar.
- Forgiveness upon death: The loan is extinguished, and the remaining estate is split equally — meaning the borrowing child effectively received more in total.
- Continuation of the loan: The estate (or a successor trustee) continues to collect payments from the borrower, distributing proceeds to all beneficiaries.
None of these is inherently right or wrong. But failing to choose one is almost guaranteed to produce a fight among your kids — possibly one that ends in litigation.
Keep Immaculate Records
Document everything as if you’ll need to prove it to a skeptical judge, because someday you might. Deposit loan repayments into a dedicated bank account. Save every check, every Venmo confirmation, every email where your child acknowledges the debt. If you forgive a portion as an annual gift, put the forgiveness in writing and file IRS Form 709 if required.
This paper trail protects you in tax audits, divorce proceedings, estate disputes, and — most importantly — everyday family misunderstandings about who owes what.
The Conversation Matters More Than the Contract
Draft the agreement, charge the interest, record the lien — but before any of that, have an honest conversation with your child. Explain why you’re putting terms in writing: not because you don’t trust them, but because life is unpredictable. Marriages end. Jobs disappear. People die. A clear agreement protects your child just as much as it protects you, because it eliminates ambiguity that breeds guilt and conflict. Frame the formality as an act of love, because that’s exactly what it is. The families that survive financial entanglement are the ones who talked about the hard parts before signing anything.
Disclaimer: The information provided in this article is for informational purposes only and should not be considered financial or legal advice. Laws and lending criteria vary significantly between states. We always recommend consulting with a qualified real estate attorney and financial advisor before entering into a property purchase or financial arrangement with another party.
