Medical Expense Deduction: More Qualifies Than You Think
What Is It?
If you itemize deductions on your federal tax return, you can deduct unreimbursed medical and dental expenses that exceed 7.5% of your adjusted gross income (AGI). The deduction is claimed on Schedule A (Form 1040). The list of qualifying expenses under IRS Publication 502 is far broader than most people realize — and many taxpayers miss thousands of dollars in legitimate deductions.
The 7.5% AGI Threshold: How It Works
Only the amount above the threshold is deductible:
Example:
- AGI: $60,000
- 7.5% threshold: $4,500
- Total qualifying medical expenses: $9,000
- Deductible amount: $9,000 − $4,500 = $4,500
The threshold applies to your AGI — not taxable income. A higher AGI makes it harder to clear the threshold; a lower AGI (common in retirement, gap years, or high-expense years) makes more of your costs deductible.
What Qualifies
The IRS list in Publication 502 is extensive. Many people are unaware that these qualify:
Insurance premiums:
- COBRA continuation coverage premiums (if paid out of pocket, not from an FSA/HSA)
- Long-term care insurance premiums (subject to age-based limits: $480–$6,020 in 2024)
- Health insurance premiums if you are self-employed (claimed separately as an above-the-line deduction, not on Schedule A)
Mental and behavioral health:
- Therapy and psychiatric treatment
- Addiction treatment programs
- Inpatient mental health care
Dental and vision:
- Orthodontics and braces
- Dentures and implants
- Prescription eyeglasses and contact lenses
- LASIK eye surgery
- Hearing aids and batteries
Long-term and home care:
- Nursing home costs (if the primary reason is medical, not custodial)
- In-home nursing care
- Home modifications required due to disability (widening doorways, installing wheelchair ramps, grab bars) — deductible to the extent the modification does not increase your home’s value
Travel:
- Mileage driven for medical appointments: 21 cents/mile for 2024
- Airfare for necessary medical treatment
- Lodging for medical travel, up to $50/night per person
Other often-missed expenses:
- Prescribed weight-loss programs for a specific disease (not general wellness)
- Smoking cessation programs and prescription nicotine patches
- Fertility treatment and IVF
- Childbirth classes (prenatal)
- Medical equipment: crutches, wheelchairs, blood sugar monitors, CPAP machines
- Wigs for patients who lost hair due to a medical condition
What Does Not Qualify
- Gym memberships and general health clubs (even if recommended by a doctor)
- Cosmetic surgery (unless it corrects a deformity from injury or disease)
- Non-prescription vitamins and supplements
- Expenses reimbursed by insurance or paid from an FSA or HSA (no double-dipping)
- Teeth whitening
FSA and HSA Interaction
A critical rule: you cannot deduct any expense you paid using pre-tax FSA or HSA funds. Those funds were already excluded from your taxable income. Only out-of-pocket costs — what you actually paid after insurance and after any tax-advantaged account reimbursement — count toward the deduction.
When Itemizing Beats the Standard Deduction
For 2024, standard deductions are:
- Single: $14,600
- Married Filing Jointly: $29,200
- Head of Household: $21,900
You need your total itemized deductions (medical + state/local taxes capped at $10,000 + mortgage interest + charitable contributions) to exceed these amounts before itemizing makes sense. Medical expenses become most valuable when:
- You had unusually high medical costs in one year (surgery, cancer treatment, a new disability)
- Your AGI is lower than normal (retirement, job transition, early retirement)
- You already have significant other itemized deductions close to the threshold
What Most People Don’t Know
- Timing is a strategy. If you’re close to the 7.5% threshold, consider “bunching” elective medical procedures — scheduling discretionary treatments like dental work or new glasses into the same tax year to push you over the floor.
- You can deduct expenses for your spouse and dependents. You don’t have to be the patient. Medical expenses you pay for a spouse or dependent you claim on your return all count.
- Medical expenses for a parent you support may qualify. If you pay more than half a parent’s support costs, their medical expenses can count toward your deduction even if they don’t live with you.
- The threshold is permanently 7.5%. Congress previously allowed it to fluctuate between 7.5% and 10%. The 7.5% rate was made permanent by the SECURE 2.0 Act.
Frequently Asked Questions
I paid for therapy out of pocket because my insurance doesn’t cover it. Does that qualify?
Yes. Payments to a licensed therapist, psychologist, or psychiatrist for treatment of a mental health condition are deductible medical expenses under IRS Publication 502.
Can I deduct my monthly health insurance premiums?
Only if you buy your own insurance (you are not covered through an employer plan) and you do not deduct them as a self-employed health insurance deduction. Employer-sponsored premiums deducted from your paycheck are already pre-tax and cannot be deducted again on Schedule A.
I installed a stair lift for my mother. Can I deduct the cost?
Possibly. If your mother is your dependent and the stair lift is medically necessary, the cost is a qualifying medical expense — reduced by any increase in your home’s market value the improvement provides. Consult a tax professional with documentation of medical necessity.
Can I deduct medical expenses from prior years that I paid this year?
You can only deduct expenses in the year they were paid, not when the treatment occurred. If you received treatment in 2023 but paid the bill in 2024, the deduction goes on your 2024 return.