Lending money to aging parents is not the same transaction as lending to a child. The direction is reversed, the money is often needed for care rather than opportunity, and someone in the family may already hold power of attorney over the very account the loan runs through. If you are about to write a check to cover your mother's home health aide or your father's assisted living deposit, the short answer is this: document it as a loan, charge at least the IRS's Applicable Federal Rate so the interest is not treated as a taxable gift, and sign the agreement before the money moves, not after.
That much is common advice. What most guides skip is the part that actually causes family loans to aging parents to go wrong: who has the legal authority to accept the loan on your parent's behalf, whether the cash you send will disqualify your parent from Medicaid the moment it lands in their account, and how your siblings find out about it.
Loan or Gift? The Decision That Changes Everything Later
A loan and a gift look identical the day the money moves. They diverge the day your parent applies for Medicaid, the day your parent dies, or the day a sibling asks where the inheritance went.
Choose a loan when:
- You expect to be repaid from your parent's assets, a home sale, or their estate.
- Multiple siblings need the arrangement to be fair and trackable, not a silent transfer.
- The amount is large enough that "just a gift" would eat meaningfully into your parent's remaining estate.
Choose a gift when:
- Your parent has no realistic path to repayment (fixed Social Security income, no assets).
- You genuinely do not want or expect the money back, and you are prepared to treat every sibling's share of the estate as reduced by that amount, in writing, so nobody litigates it later.
- The amount is under the annual gift tax exclusion, so there is no filing to worry about either way.
The middle ground, an undocumented "loan" that both of you privately know will never be repaid, is the version that causes the most damage. It gets no tax benefit, no Medicaid protection, and no family goodwill. Pick one and document it.
Is It a Conflict of Interest to Lend Money to a Parent You Have Power of Attorney Over?
Roughly 22 million Americans age 60 and older have named someone as their financial power of attorney, according to the Consumer Financial Protection Bureau. If that person is you, and you are also the one lending your parent money, you are on both sides of the transaction: the lender, and the person who controls whether and how your parent's estate repays you.
The CFPB is blunt about this pattern. A power of attorney agent has a duty of loyalty that prohibits self-dealing "absent express authorization in the POA document," and fiduciaries should not loan or give the principal's money to themselves or others without that authorization. Even when the loan runs the other way, from you to your parent, being the accepting signature on both sides of a private loan is exactly the fact pattern adult protective services and probate courts are trained to flag.
This does not mean you cannot do it. It means you need a second signature. Before you finalize the loan:
- Ask a sibling, a co-agent under the POA, or the parent's elder law attorney to countersign or at least review the agreement as a witness.
- Keep the interest rate at or above the IRS Applicable Federal Rate so there is no argument the loan was priced to benefit you.
- Route the funds through a traceable transfer, not cash, and keep the paper trail with the loan document.
- Tell your siblings before the money moves, not after. A loan disclosed in advance is a family decision. A loan discovered later looks like exploitation, whether it was or not.
Will a Loan From You Affect Your Parent's Medicaid Eligibility?
If your parent might need Medicaid to pay for a nursing home or home care within the next few years, read this section before you send anything.
Medicaid's asset test looks at what your parent owns on the day they apply, not where it came from. In most states, a single applicant aged 65 or older can keep no more than $2,000 in countable assets and still qualify for Nursing Home Medicaid or a home and community-based services waiver, per Medicaid Planning Assistance (a handful of states, including New York, California, and Illinois, run materially higher limits). Cash sitting in your parent's checking account is a countable asset. It does not matter whether that cash arrived as a gift, a loan, or their own Social Security check. If your $15,000 loan is still sitting there when your parent applies, it can push them over the limit and delay eligibility until it is spent down.
This is the opposite problem from the one covered in Medicaid's look-back rules for money a parent gives away: here, your parent is the recipient, not the source, so the five-year transfer penalty for gifts does not apply to what you send them. The asset limit does. Two practical fixes:
- Time it to spending. Send money close to when your parent will actually spend it on care, a home modification, or a covered expense, rather than building up a balance in their account.
- Talk to an elder law attorney before applying. If Medicaid is realistically two to five years out, get a professional read on how a documented loan interacts with your state's specific resource rules before you structure anything.
Neither of these is optional if Medicaid is a live possibility. Skipping this step is how a loan meant to help ends up delaying the care it was meant to pay for.
How to Structure It: Lump Sum, Line of Credit, or Ongoing Reimbursement
Aging-parent loans rarely look like a single lump sum for one expense. Care costs are recurring and unpredictable, an assisted living deposit this month, a home health aide next month, a hospital co-pay after that. A lump-sum loan works when the amount and purpose are fixed: a one-time roof repair or a paid-in-full assisted living entrance fee. A revolving line of credit fits better when you are covering ongoing care costs over an uncertain timeline, since it lets you track draws and interest against a single agreement instead of writing a new promissory note every time an expense comes up.
A third structure is common in this specific scenario and worth naming separately: a care-cost reimbursement agreement, where you advance money as expenses arise and your parent's estate repays the running total at death or asset sale, with interest accruing annually so the arrangement stays priced correctly for tax purposes. This works well when repayment during your parent's lifetime is unrealistic but you still want the amount tracked and treated as a loan rather than a series of gifts.
What Interest Rate Should You Charge Your Parents?
Charge at least the IRS Applicable Federal Rate for the month you originate the loan and the term you choose. Rates change monthly and by term length, so check the current rate rather than relying on a number from an old article, including this one. If you charge less than the AFR, the IRS treats the shortfall as imputed interest to you and, depending on the loan size, a gift to your parent under Section 7872 of the tax code.
That gift framing matters less here than it does for parent-to-child loans, since the annual gift tax exclusion is $19,000 per recipient for 2026, according to the IRS, and most adult children are not lending amounts large enough to approach it in foregone interest alone. But if you are covering six figures in long-term care costs, run the numbers, because the imputed interest is calculated on the full loan balance, not just the amount above the exclusion.
Coordinating With Siblings So the Loan Doesn't Become the Estate Fight
The single most common way an aging-parent loan damages a family has nothing to do with the IRS. It's the sibling who finds out at the funeral that another sibling had been quietly sending money for two years, and now expects to be repaid first from an estate everyone assumed would be split evenly.
Put the agreement, the running balance, and the repayment terms somewhere every sibling with a stake in the estate can see, updated as it changes, not disclosed once and then forgotten. If more than one sibling is contributing, decide up front whether each person's advances are tracked separately or pooled, and whether interest accrues the same way for everyone. Treat it the way you would treat a shared mortgage co-signed by siblings: assume every dollar will eventually be reviewed by someone who wasn't in the room when you sent it, and document accordingly.
What Happens If Your Parent Dies Before Repaying the Loan?
This is not a hypothetical worth avoiding in the loan document. If the loan is still outstanding at your parent's death, it becomes a debt of the estate, and how it gets resolved, repaid in full from estate assets, forgiven, or offset against your share of the inheritance, depends on what the loan agreement and the will actually say. What happens to a family loan when the borrower dies walks through the advancement rules executors use to sort this out. Read it before you lend, not after, so your agreement already answers the question instead of leaving your siblings and the executor to guess at your intent.
A Worked Example
Maria's father needs $40,000 for a one-year stay in assisted living while the family sells his house. Maria has the cash; her father has none until the house closes. She structures it as a one-year loan at the short-term AFR, documented with a promissory note, disclosed to her two siblings by email before the money moves, and timed so the funds are drawn down for care costs within weeks rather than sitting in her father's account. When the house sells eight months later, the estate repays Maria first, per the note, before the remaining proceeds are split three ways. Nobody is surprised, because everybody saw the terms in month one.
Start the Agreement
A loan to an aging parent deserves the same paperwork you'd want if the roles were reversed. Create a free loan agreement with the repayment terms, interest rate, and structure that fits your family, and track the balance as draws and payments happen instead of trying to reconstruct it later from memory and bank statements.
This article is educational and not tax or legal advice. Medicaid rules vary by state and elder law questions involving power of attorney should go to a licensed attorney in your parent's state before you move money.
