Can Grandparents Deduct Medical Expenses for a Grandchild? (w/Examples) + FAQs

This article reflects federal tax rules as of June 2026 and covers tax year 2025 (returns filed in 2026). State rules are addressed separately below. Tax law changes often — confirm current figures with IRS.gov before you file.

Quick Answer

Yes. For tax year 2025, a grandparent can deduct medical expenses paid for a grandchild — but only if that grandchild qualifies as the grandparent’s dependent (a qualifying child or qualifying relative). The grandparent must itemize, and only the amount above 7.5% of adjusted gross income counts.

A grandchild’s medical bills can be deducted on your return, but the right to do so hinges on one quiet test most people skip: the dependency rules. If the grandchild is not your dependent, the money you spend on their doctor visits, braces, or therapy gives you no deduction at all — even if you paid every cent. That gap can cost a caregiving grandparent hundreds or thousands of dollars at tax time.

This matters most for the growing number of grandparents raising grandchildren. About 2.3 million grandparents are responsible for grandchildren living with them, per the U.S. Census Bureau, and many also foot the medical bills. Whether you claim the deduction or lose it comes down to who claims the child, who paid for support, and whether you itemize for 2025.

• 🩺 Who qualifies: the exact dependency tests that let you deduct a grandchild’s medical costs.
• 💵 The math: how the 7.5%-of-AGI floor works, with worked dollar examples.
• 📋 Forms: which lines on Schedule A and when Form 2120 saves the day.
• ⚖️ Edge cases: divorced parents, shared support, and the “qualifying child of another taxpayer” trap.
• 🗺️ State angle: whether your state lets you deduct the same expenses.

The Core Rule: You Deduct for Dependents

The federal medical expense deduction comes from Internal Revenue Code Section 213. It lets you deduct unreimbursed medical and dental costs you pay for yourself, your spouse, and your dependents. The word dependent is the entire ballgame for grandparents.

Under IRS Publication 502, you can include medical expenses for any person who was your dependent either when the care was given or when you paid for it. A grandchild counts as a dependent in one of two ways: as your qualifying child or as your qualifying relative. If the grandchild fits neither category, the bills you pay are simply personal gifts in the eyes of the IRS, and personal gifts are not deductible.

Here is the consequence in plain terms. You can pay a $4,000 hospital bill for your grandchild out of pure love, but if that child is claimed by their parents on the parents’ return, you get no medical deduction for it. The deduction follows the dependency claim, not the checkbook. The reader’s first task, then, is never “how much did I spend?” — it is “is this child my dependent?”

A common misconception is that paying the bill is enough. It is not. The tax benefit is tied to who can claim the child, and you must be the one entitled to claim that grandchild (or fall into one of the narrow exceptions below) before a single dollar becomes deductible.

What you should do first: pull last year’s return and confirm whether you — not the child’s parents — list the grandchild as a dependent. If you do, you are on solid ground. If the parents claim the child, jump to the “Which situation applies to you?” section to see whether an exception rescues your deduction.

Path 1: The Grandchild Is Your Qualifying Child

A grandchild is one of the few relatives who can be your qualifying child, not just a qualifying relative. This is the cleanest path and the one most caregiving grandparents use. The qualifying child tests under the dependency rules are relationship, age, residency, support, and joint return.

For the relationship test, a grandchild (and great-grandchild) is a “descendant of your child,” so they qualify. The age test requires the child to be under 19 at year-end, or under 24 if a full-time student, or any age if permanently and totally disabled. The residency test requires the grandchild to live with you for more than half the year. The support test requires that the child did not provide more than half of their own support — note this is about the child’s own contribution, not yours.

The big advantage here is that the qualifying-child path has no gross-income limit. Your grandchild can earn a part-time wage and still be your dependent, as long as they did not pay for more than half of their own support. That makes this route far more forgiving than the qualifying-relative route described next.

The consequence of meeting these tests is powerful: you claim the grandchild as a dependent, and every qualifying medical dollar you paid for that child flows onto your Schedule A. The misconception to avoid is thinking the child must be legally adopted — they do not. A biological or step-grandchild who lives with you and meets the tests is your qualifying child.

What to do: if the grandchild lives with you more than half the year and the parents are not claiming them, claim the child as your dependent on Form 1040, then deduct their medical costs on Schedule A. Keep school records or a lease showing the child lived with you, in case the IRS asks for proof of residency.

Path 2: The Grandchild Is Your Qualifying Relative

If the grandchild does not live with you for more than half the year — or is too old to be a qualifying child — they may still be your qualifying relative. This path has stricter tests, and one of them trips up many grandparents: the gross income limit.

The qualifying relative tests are: the person is not anyone’s qualifying child, they meet the relationship or member-of-household test (a grandchild meets it automatically), their gross income is under the limit, and you provide more than half of their total support. For tax year 2025, the gross income limit is $5,200. If the grandchild earned $5,200 or more in 2025, you cannot claim them as a qualifying relative, no matter how much support you gave.

The support test here is different from the qualifying-child version. For a qualifying relative, you must pay more than half of the child’s total support for the year. Total support includes food, housing, clothing, medical care, and education. If three people split the cost and none pays over half, no one can claim the child — unless they use the multiple-support rules covered later.

The consequence of failing the gross income test is total loss of the deduction. A 17-year-old grandchild who earned $6,000 at a summer job blows past the $5,200 limit for 2025, so even if you paid their $8,000 surgery bill, none of it is deductible to you. A frequent misconception is that scholarships or gifts count as gross income — generally, a full-time student’s scholarship does not, which can keep an older grandchild eligible.

What to do: tally the grandchild’s 2025 earned income before you assume you can deduct anything. If it is under $5,200 and you paid over half their support, claim them and deduct away. If income is borderline, get pay stubs and the W-2 to confirm before filing.

The 7.5% AGI Floor: How the Math Actually Works

Even after you clear the dependency hurdle, you do not deduct every medical dollar. Per IRS Topic 502, you deduct only the portion of total medical expenses that exceeds 7.5% of your adjusted gross income (AGI) for tax year 2025. This floor applies to all your medical costs combined — your own, your spouse’s, and your dependent grandchild’s.

You also must itemize on Schedule A rather than take the standard deduction. If your total itemized deductions do not beat the standard deduction, the medical deduction gives you nothing. This is why the medical deduction helps fewer people than expect it — the bills must be large relative to income, and your other deductions must push you over the standard amount.

Here is a fully worked example for tax year 2025. Suppose your AGI is $60,000. Your 7.5% floor is $60,000 × 0.075 = $4,500. You paid $7,000 in unreimbursed medical bills for your dependent grandchild and $1,000 for yourself, totaling $8,000. You subtract the $4,500 floor from $8,000, leaving a $3,500 medical deduction. Only that $3,500 lands on Schedule A — the first $4,500 is wasted by the floor.

The misconception worth killing: many grandparents think “deductible” means dollar-for-dollar back in their pocket. It does not. A $3,500 deduction reduces taxable income by $3,500. In a 22% bracket, that is roughly $770 in actual tax saved — real money, but far less than the bill itself.

What to do: add up every unreimbursed medical dollar you paid in 2025 for everyone in your household, multiply your AGI by 0.075, and subtract. If the result is positive and your total itemized deductions beat the standard deduction, itemize. Otherwise, take the standard deduction and skip the headache.

Is Itemizing Even Worth It for 2025?

The 2025 tax law (the One Big Beautiful Bill Act, or OBBBA) raised the standard deduction, which raises the bar for itemizing. For tax year 2025, the standard deduction is roughly $15,000 for single filers and $30,000 for married filing jointly, with extra amounts for those 65 and older.

This matters enormously for grandparents, who are often retired and over 65. A 68-year-old single grandparent gets an extra standard deduction amount on top of the base. To benefit from a grandchild’s medical bills, your total itemized deductions — medical above the floor, state and local taxes (capped at the SALT limit), mortgage interest, and charity — must exceed that higher standard deduction.

The consequence is that many grandparents with paid-off homes and modest state taxes simply cannot itemize, so the medical deduction never helps them. That is not a failure on your part; it is the math of a large standard deduction. The misconception is that a big medical bill automatically produces a tax break — it only does if itemizing wins overall.

What to do: run both numbers. Total your itemized deductions and compare to your standard deduction for 2025. If itemizing loses, the grandchild’s medical bills change nothing on your federal return, and you should not spend hours gathering receipts you cannot use.

Which Situation Applies to You?

The right answer depends on your exact setup. Use this quick branch to find your path.

• The grandchild lives with you most of the year and you claim them. You are on Path 1 (qualifying child). Deduct their medical costs on Schedule A if you itemize.
• The grandchild does not live with you, but you pay over half their support and their income is under $5,200 for 2025. You are on Path 2 (qualifying relative). You can deduct.
• The grandchild’s parents claim them as a dependent. You generally cannot deduct, with one narrow divorced-parents exception below.
• You and others (the parents, another grandparent) split support and no one pays over half. Look at the multiple-support agreement and Form 2120 below.
• The grandchild earned $5,200 or more in 2025 and does not live with you. You cannot claim them as a qualifying relative, so the medical bills are not deductible to you.

The Divorced-Parents Exception — and Its Limit for Grandparents

There is a special rule for children of divorced or separated parents. Such a child is treated as the dependent of both parents for medical-expense purposes. That means each parent can deduct the medical bills they personally pay, even though only one parent claims the child as a dependent.

Here is the catch for grandparents: this exception applies to parents, not grandparents. A grandparent does not automatically get to deduct a grandchild’s medical bills just because the grandchild’s parents are divorced. If you want the deduction as a grandparent, you still need the grandchild to be your qualifying child or qualifying relative under the standard tests.

The consequence is a trap many grandparents fall into. They hear “divorced-parents rule” and assume it stretches to them. It does not. The misconception is that paying a divorced child’s medical bill for a grandchild creates a deduction — it only does so for the actual parents, or for a grandparent who independently meets the dependency tests.

What to do: if the grandchild’s parents are divorced and you are simply helping pay bills, confirm whether the grandchild is your dependent. If not, consider whether the parent who pays should claim the deduction instead, since the parent likely qualifies under the special rule.

When No One Pays Half: Multiple Support Agreements and Form 2120

Sometimes a grandchild is supported by several people — both grandparents, an aunt, and a parent — and no single person pays over half. Normally, that means no one can claim the child as a qualifying relative. The multiple support rules fix this.

If you and at least one other person together paid over half the grandchild’s support, and you personally paid more than 10%, you can claim the child — provided everyone else who paid over 10% signs a statement waiving their right to claim the child. You then file Form 2120, Multiple Support Declaration, with your return. Note this works only for a qualifying relative, not a qualifying child.

The statement each other supporter signs must list the calendar year, the grandchild’s name, and the signer’s name, address, and Social Security number. You keep those signed statements with your records — you do not mail them — and you attach Form 2120 to your Form 1040 or 1040-SR.

The consequence of skipping this step is losing the deduction entirely when support is split. The misconception is that you can just “agree” verbally — the IRS wants signed waivers and the filed form. Once you properly claim the child, their medical bills you paid become deductible on your Schedule A.

What to do: if support is shared, add up each person’s contribution. If your share tops 10% and the group tops 50%, gather signed waivers from everyone over 10%, file Form 2120, claim the grandchild, and deduct the medical costs you paid.

What Counts as a Deductible Medical Expense

Once the grandchild is your dependent, a wide range of their costs qualify. Per Publication 502, deductible expenses include doctor and dentist fees, hospital care, prescription drugs, eyeglasses, hearing aids, braces, mental-health therapy, and many medical supplies. Health insurance premiums you pay for the grandchild also count.

You can also include transportation costs to get medical care, such as mileage to the doctor at the IRS standard medical mileage rate, plus tolls and parking. Long-term care and certain special-education costs for a child with a diagnosed condition may qualify too. The key is that the expense must be for the diagnosis, cure, treatment, or prevention of disease.

The consequence of including non-qualifying items is an overstated deduction that can trigger an IRS adjustment. The misconception is that anything “health related” counts — gym memberships, most cosmetic procedures, and over-the-counter vitamins generally do not. What to do: keep itemized receipts and an Explanation of Benefits for each expense, and exclude anything your insurance reimbursed.

Three Common Scenarios

Scenario 1: Full-Time Caregiver Grandparent

Your Situation	Tax Result for 2025
Grandchild lives with you all year, parents absent, you claim the child	Grandchild is your qualifying child; deduct all unreimbursed medical costs above the 7.5% AGI floor on Schedule A

Scenario 2: You Help, But the Parents Claim the Child

Your Situation	Tax Result for 2025
You pay the grandchild’s $5,000 surgery bill, but the parents claim the child as their dependent	No deduction for you; the bill is a personal gift, and only the parents could deduct (if they paid and itemize)

Scenario 3: Shared Support Among Relatives

Your Situation	Tax Result for 2025
You pay 40% of support, an aunt pays 35%, an uncle pays 25%; no one pays over half	You may claim the child via Form 2120 if the others sign waivers, then deduct the medical costs you paid

Three Named Examples

Maria, the full-time caregiver. Maria, 64, has raised her 9-year-old granddaughter Lucy since birth in her own home. Lucy meets the qualifying-child tests, so Maria claims her as a dependent. In 2025, Maria’s AGI is $45,000 (floor = $3,375) and she paid $6,000 for Lucy’s asthma treatment. Maria deducts $6,000 − $3,375 = $2,625 on Schedule A, saving about $315 in the 12% bracket.

Robert, the generous but ineligible grandfather. Robert, 70, pays his 16-year-old grandson Jake’s $7,000 orthodontia bill. Jake lives with his parents, who claim him as a dependent. Because Jake is not Robert’s dependent and the divorced-parents rule does not reach grandparents, Robert deducts nothing — the $7,000 is a personal gift. His daughter, who claims Jake, could have deducted it had she paid and itemized.

Linda, the shared-support grandmother. Linda pays 45% of granddaughter Ava’s support; Ava’s mother pays 30% and an uncle pays 25%. No one pays over half, and Ava earned only $2,000 in 2025. Linda gets the mother and uncle to sign multiple-support waivers, files Form 2120, claims Ava, and deducts the $4,000 in medical bills she paid (above her AGI floor).

Mistakes to Avoid

• Deducting bills for a grandchild you don’t claim. The deduction follows the dependency claim; paying alone earns you nothing and an audit can disallow it.
• Ignoring the $5,200 gross income limit. A grandchild who earned $5,200 or more in 2025 cannot be your qualifying relative, voiding the deduction.
• Forgetting the 7.5% AGI floor. Expenses below the floor produce zero deduction, so small bills rarely help.
• Itemizing when the standard deduction is bigger. You lose the medical benefit entirely if itemizing does not beat your 2025 standard deduction.
• Assuming the divorced-parents rule helps grandparents. It only helps actual parents; grandparents must meet the standard dependency tests.
• Skipping Form 2120 in shared-support cases. Without signed waivers and the filed form, no one in the group can claim the child.
• Counting reimbursed expenses. Insurance-reimbursed amounts are not deductible; double-counting them overstates your deduction and invites correction.

Do’s and Don’ts

• Do confirm dependency first — because the deduction is impossible without it.
• Do keep proof of residency and support — because the IRS can ask you to prove the grandchild qualifies.
• Do save every itemized receipt and EOB — because you must show the expense was unreimbursed and medical.
• Do run the standard-vs-itemized comparison — because itemizing only helps if it wins.
• Do file Form 2120 when support is split — because it is the only way to claim a shared-support grandchild.
• Don’t deduct gym fees or vitamins — because they generally are not qualified medical expenses.
• Don’t assume paying a bill creates a deduction — because the tax benefit follows the dependency claim.
• Don’t forget transportation costs — because mileage to care is deductible and easy to miss.
• Don’t let two people claim the same grandchild — because duplicate claims trigger IRS notices and delays.

Pros and Cons of Claiming a Grandchild’s Medical Expenses

• Pro: Real tax savings — because qualifying bills above the floor reduce your taxable income.
• Pro: Broad list of eligible costs — because everything from braces to therapy to insurance premiums counts.
• Pro: Qualifying-child path has no income cap — because a working teen grandchild can still qualify.
• Pro: Multiple-support rules offer a path — because shared support need not block the deduction.
• Pro: Transportation and mileage included — because care-related travel adds to your total.
• Con: The 7.5% floor is steep — because the first chunk of expenses produces no benefit.
• Con: You must itemize — because the rising standard deduction shuts many grandparents out.
• Con: Strict dependency tests — because failing one test voids the entire deduction.
• Con: Recordkeeping burden — because you must prove residency, support, and unreimbursed status.
• Con: Limited state benefit — because some states do not allow the deduction at all.

Does Your State Let You Deduct This?

State rules do not automatically match federal rules. Most states that have an income tax start from federal AGI, but they treat itemized medical deductions differently. Always confirm with your own state’s tax agency, such as the California Franchise Tax Board or New York’s Department of Taxation and Finance.

Some states are more generous than the IRS. For example, certain states use a lower AGI floor for medical expenses or allow the deduction even when you take the federal standard deduction. Other states do not allow itemized deductions at all, so a grandchild’s medical bills give you no state benefit.

Then there are the nine no-income-tax states — including Texas, Florida, Washington, and Nevada — where there is no state income tax return and therefore no state medical deduction to claim. That is a complete answer, not a gap: if your state has no income tax, the federal return is the only place the deduction can appear. What to do: search your state agency’s site for “medical expense deduction” and confirm the floor and whether the dependency rules mirror the federal ones.

What to Do Next

1. Confirm the grandchild is your dependent for 2025 using the qualifying-child or qualifying-relative tests.
2. Gather records — itemized medical receipts, insurance EOBs, proof of residency, and a support worksheet.
3. If support is split, collect signed multiple-support waivers and prepare Form 2120.
4. Total your medical expenses and subtract 7.5% of your AGI to find your deductible amount.
5. Compare itemized vs. standard deduction for 2025; itemize only if it wins.
6. Report the deduction on Schedule A and file by the April 15, 2026 deadline (or with an extension to October 15, 2026).
7. Call a CPA or tax attorney if support is shared, the parents also want to claim the child, or you face an IRS notice — this typically costs $200–$500 for a focused consultation and prevents far costlier errors.

This article is educational and is not a substitute for advice from a licensed tax professional for your specific situation.

Frequently Asked Questions

Can a grandparent deduct medical expenses if the parents claim the grandchild? No. For tax year 2025, if the parents claim the grandchild as their dependent, the grandparent cannot deduct those medical bills. The deduction follows the dependency claim, not who paid.

Does the grandchild have to live with me to deduct their medical bills? Not always. A grandchild who lives with you over half the year can be your qualifying child. One who doesn’t can still be a qualifying relative if you pay over half their support and their 2025 income is under $5,200.

What is the income limit for claiming a grandchild as a qualifying relative in 2025? $5,200. If the grandchild’s gross income reaches $5,200 or more for tax year 2025, you cannot claim them as a qualifying relative, regardless of how much support you provided.

What percentage of my income must medical expenses exceed? 7.5%. For tax year 2025, only unreimbursed medical expenses above 7.5% of your adjusted gross income are deductible, and only if you itemize on Schedule A.

Do I have to itemize to deduct a grandchild’s medical expenses? Yes. Medical expenses are an itemized deduction on Schedule A. If your total itemized deductions don’t beat your 2025 standard deduction, you get no medical-expense benefit.

Can both a grandparent and a parent deduct the same grandchild’s medical bills? No. Only the taxpayer entitled to claim the grandchild as a dependent deducts the bills they paid. The divorced-parents exception applies to parents, not grandparents.

What is Form 2120 and when do I use it? A Multiple Support Declaration. You file Form 2120 when several people share a grandchild’s support, you paid over 10%, the group paid over half, and others sign waivers letting you claim the child.

Can I deduct health insurance premiums I pay for my grandchild? Yes. If the grandchild is your dependent for 2025, premiums you pay count as a deductible medical expense on Schedule A, subject to the 7.5% AGI floor.

Are braces and orthodontia deductible for a grandchild? Yes. Orthodontia is a qualified medical expense if the grandchild is your dependent. Include the amount you actually paid out of pocket, above the AGI floor, on Schedule A.

Does my state follow the federal medical deduction rules? It varies. Many states mirror federal rules, some use a lower floor, and no-income-tax states like Texas and Florida have no state deduction at all. Check your state tax agency before filing.

Can I deduct mileage for driving my grandchild to medical appointments? Yes. If the grandchild is your dependent, you may deduct travel for medical care at the IRS standard medical mileage rate, plus parking and tolls, on Schedule A for 2025.

What if the grandchild gets adopted or foster care benefits? It depends. A legally placed foster or adopted grandchild can be a qualifying child. Reimbursed expenses, however, are never deductible, so subtract any benefits or insurance payments before claiming.