How the Medical Expense Deduction Works

The IRS allows you to deduct qualifying medical and dental expenses that exceed 7.5% of your AGI. This threshold exists because the deduction is intended to help people facing extraordinary medical costs — not to subsidize routine healthcare spending.

The formula is simple: add up all unreimbursed qualifying medical expenses, subtract 7.5% of your AGI, and deduct what’s left. If your total medical expenses don’t clear the threshold, there is no deduction for that year.

What Medical Expenses May Qualify?

The IRS covers a wide range of medical costs under this deduction. The key test: the expense must be for the diagnosis, cure, mitigation, treatment, or prevention of disease, or for the purpose of affecting any structure or function of the body.

What Does NOT Qualify

• Cosmetic procedures — Elective surgery, teeth whitening, hair transplants
• General health supplements — Vitamins taken for wellness, not a diagnosed condition
• Gym memberships — Even if doctor-recommended for general fitness
• Reimbursed expenses — Anything covered by insurance, FSA, or HSA
• Over-the-counter medications — Aspirin, cold medicine (insulin is an exception)
• Funeral or burial expenses — Not qualifying medical costs
• Maternity clothes — Personal clothing expenses

How to Maximize Your Medical Expense Deduction

Bundle expenses in a single year — Since you only deduct what exceeds 7.5% of AGI, concentrating medical spending into one calendar year can push you over the threshold. If you need dental work, new glasses, and physical therapy, scheduling them all in the same year may make the deduction possible.

Track every qualifying expense year-round — Small costs add up. Keep a folder (physical or digital) for every receipt, co-pay, prescription, and medical travel mileage log entry throughout the year.

Only count unreimbursed amounts — Before calculating your deduction, subtract anything paid by insurance, employer benefits, FSA, or HSA. Only what you actually paid out of pocket counts.

Compare to the standard deduction — You only benefit from medical expense deductions if your total itemized deductions exceed the standard deduction ($14,600 single / $29,200 married in 2024). Run both numbers before deciding.

How to Claim

1. Add up all qualifying unreimbursed medical expenses for the year
2. Subtract any insurance, FSA, or HSA reimbursements
3. Calculate 7.5% of your AGI
4. Subtract the threshold from your total expenses
5. If positive, report the remainder on Schedule A, Line 1
6. Compare total itemized deductions to your standard deduction — use whichever is larger

Common Questions

Can I deduct medical expenses for my family members?

Yes. Qualifying medical expenses for your spouse and dependent children may be included in your total. You can also include medical expenses for someone you could have claimed as a dependent but didn’t due to income or filing status rules — consult a tax professional for complex family situations.

What if I paid with a credit card — does it count for this year?

Yes. Medical expenses are deductible in the year you charged them to your credit card, regardless of when you pay the credit card bill. The charge date — not the payment date — determines the tax year.

Do I need receipts for every expense?

Yes, documentation is important. Keep pharmacy receipts, provider invoices, insurance EOBs, and mileage logs. For large expenses like surgery or medical equipment, also keep the physician’s recommendation or prescription.