The Medical Expense Deduction, Explained

The medical expense deduction is an itemized deduction on Schedule A. That means gate one: your total itemized deductions (medical over the floor, plus state and local taxes, mortgage interest, and charitable giving) must beat your standard deduction, which is $16,100 for single filers and $32,200 for joint filers in 2026. If you take the standard deduction, your medical bills do nothing for your federal return, full stop.

Gate two is the floor. Only unreimbursed expenses above 7.5% of your AGI count. The floor scales with your income: at $80,000 of AGI it is $6,000; at $200,000 it is $15,000. This is exactly why the deduction tends to matter most in low-income, high-expense years, like a year with a major surgery, long-term care placement, or a big fertility or orthodontia bill, and matters least in a normal year.

Publication 502 defines medical care as amounts paid for the diagnosis, cure, mitigation, treatment, or prevention of disease, and for treatments affecting any part or function of the body. In practice, here is the table most people need.

Two rows deserve a closer look. First, premiums. The premium rules confuse more people than anything else in Publication 502. Premiums count only if you paid them with money that was already taxed. Most employees pay health premiums pretax through a cafeteria plan, so those premiums are already excluded from income and cannot be deducted again. If you are self-employed and showed a profit, you generally skip Schedule A entirely: qualifying health, dental, and long-term care premiums are deductible above the line on Schedule 1, with no 7.5% floor, up to your net self-employment earnings. That above-the-line fork is almost always the better deal when you qualify for it.

Second, long-term care premiums. Tax-qualified long-term care insurance premiums count as medical expenses, but only up to an age-based cap per insured person. For 2026 the caps are $500 at age 40 or under, $930 for 41 to 50, $1,860 for 51 to 60, $4,960 for 61 to 70, and $6,200 over 70. A married couple applies the cap separately to each spouse.

Capital improvements get their own rule. A home improvement made for medical care, a ramp, a stair lift, an elevator, a modified bathroom, is deductible only to the extent its cost exceeds any increase in your home's value. Spend $40,000 on an elevator that adds $25,000 of value and only $15,000 is a medical expense. Get a before-and-after appraisal in writing; without one, you have no way to defend the number. Publication 502 also lists improvements that typically add no value, like ramps, widened doorways, handrails, and grab bars, where the full cost counts.

The disallowed list matters as much as the allowed one, because people routinely total these into their medical number and get it wrong.

• Cosmetic procedures, unless the surgery corrects a deformity from a congenital condition, injury, or disease. Teeth whitening is the textbook example of a disallowed expense.
• General health spending: gym memberships, health club dues, vitamins, and supplements taken for general wellness rather than to treat a specific condition diagnosed by a physician.
• Over-the-counter medicine without a prescription. Except for insulin, a drug counts only if it is prescribed. This is a Schedule A rule; HSA and FSA rules for over-the-counter items are more generous, which is a common source of confusion.
• Anything reimbursed by insurance, an employer, an HSA, or an FSA. Only the unreimbursed portion is yours to deduct.
• Nonmedical personal costs: funeral expenses, babysitting for a healthy child while you see a doctor, maternity clothes, and travel that is merely beneficial to your general health.

Medical expenses count in the year you pay them, not the year you receive the care or get the bill. A surgery performed in November that you pay in January belongs to the January year. And if you pay by credit card, the expense counts in the year the charge is made, even if you pay the card off later.

That combination is a planning lever. Because the 7.5% floor resets every year, spreading $16,000 of expenses evenly across two years can mean clearing the floor in neither, while stacking them into one year clears it once, decisively. If you are already having a heavy medical year, ask whether pending work, the other knee, the kids' orthodontia, new hearing aids, can be done and charged before December 31.

You can include expenses you paid for yourself, your spouse, and anyone who was your dependent either when the care was provided or when you paid the bill. Beyond that, two extensions matter.

• The almost-dependent parent. You can include expenses for a person who would have qualified as your dependent except that their gross income was too high, they filed a joint return, or you could be claimed as someone else's dependent. This is how adult children paying a parent's assisted-living or surgery bills can still get the deduction: pay the provider directly and keep the records.
• Children of divorced or separated parents. For medical expense purposes, the child is treated as a dependent of both parents, so each parent can deduct the medical bills that parent actually paid, regardless of who claims the child on the return.

One adjacent situation worth flagging: if friends or family raised money for your medical bills through a crowdfunding campaign, the tax treatment of that money is its own topic. Our guide to GoFundMe and taxes covers when crowdfunded medical money is and is not taxable.

Transportation that is primarily for and essential to medical care is a medical expense. That covers more than most people claim.

• Your car: either actual out-of-pocket costs like gas and oil, or the standard medical mileage rate of 20.5 cents per mile for 2026, plus parking fees and tolls either way. Every trip to the doctor, dentist, pharmacy, physical therapist, or hospital counts. A chronic condition with weekly appointments an hour away adds up to real miles.
• Fares: taxi, bus, train, ambulance, and plane fare to reach medical care, including travel to another city for treatment that is not available locally.
• Out-of-town lodging: up to $50 per night per person while away from home primarily for and essential to care provided by a doctor in a licensed hospital or equivalent facility, with no significant element of vacation in the trip. Meals are not included.
• Companions: transportation and lodging for a person who must travel with the patient also count, a parent traveling with a sick child being the classic case, which doubles the lodging cap to $100 per night for the pair. A nurse or caregiver who provides injections or other required care during the trip qualifies too.
• Medical conferences: admission and transportation to a conference about a chronic illness that you, your spouse, or your dependent has can count; the meals and lodging at the conference do not.

The lesson generalizes: the medical deduction is never a number you evaluate alone. It only exists inside the itemize-versus-standard comparison, which is why the standard deduction page and the full deductions list are the right next reads.

Expenses paid or reimbursed from a health savings account can never also be deducted on Schedule A. The HSA dollars were already tax-free going in, so deducting the same expense would be a double dip.

For most households, that is not a loss; it is the better deal. HSA dollars are deductible from the first cent, with no 7.5% floor and no itemizing requirement, which beats a Schedule A deduction that only starts after thousands of dollars of haircut. The full mechanics are in our guide to the HSA triple tax advantage.

Here is what most articles on this topic will not say plainly: for a typical W-2 household with employer coverage, this deduction almost never pays. Premiums are already pretax, the out-of-pocket maximum on an employer plan usually sits below 7.5% of a healthy AGI, and the standard deduction is high enough that itemizing loses anyway. The deduction is real, but it is built for outlier years: long-term care, major surgery with thin insurance, fertility treatment, a low-income year that coincides with high bills.

What works instead, in rough order of usefulness:

• Max the HSA if you are on a qualifying high-deductible plan. First-dollar benefit, no floor, no itemizing. See the HSA triple tax advantage.
• Use the health FSA if your employer offers one and you have predictable expenses; it is pretax money with no AGI floor.
• Take the self-employed premium deduction if you have self-employment income; it is above the line and floor-free.
• Bunch elective care into an already-heavy year so one year clears the floor decisively instead of two years each falling short.

For the broader menu of deductions worth checking before year-end, start with the full tax deductions list.