The IRS permits taxpayers to deduct qualified medical expenses that exceed 7.5% of their adjusted gross income (AGI) when itemizing deductions on Form 1040. This threshold applies to all eligible out-of-pocket costs for diagnosis, treatment, or prevention of disease.
Medical expense deductions are not available to everyone. You must itemize deductions rather than take the standard deduction. For 2023, the threshold is 7.5% of AGI, meaning only expenses above that amount count toward your deduction. If your AGI is $60,000, the deductible portion begins at $4,500 ($60,000 × 0.075).
For example, if you paid $7,000 in qualifying medical costs during the year and your AGI was $60,000, you can deduct $2,500 ($7,000 - $4,500). This amount reduces your taxable income, potentially lowering your tax bill. The actual tax savings depend on your marginal tax rate.
Qualified medical expenses include costs for diagnosis, treatment, or prevention of disease, including those related to vision, dental, mental health, and prescription medications. The IRS defines these under Internal Revenue Code Section 213(d).
Examples include: doctor visits, hospital stays, prescription drugs, insulin, hearing aids, eyeglasses, dental work, psychiatric therapy, and transportation to medical appointments. Costs for long-term care services, such as nursing home stays, also qualify if they meet specific criteria.
Non-qualified expenses include cosmetic procedures, vitamins, over-the-counter medicines (unless prescribed), and health insurance premiums unless paid through an employer's cafeteria plan or self-employed health insurance deduction.
Start with your total medical expenses for the year. Subtract any reimbursements from insurance, employer plans, or health savings accounts (HSAs). Then subtract 7.5% of your AGI. The remaining amount is your allowable deduction.
Use this formula: Deduction = Total Qualified Medical Expenses - Reimbursements - (7.5% × AGI)
For instance, if your AGI is $80,000, 7.5% of that is $6,000. If you paid $12,000 in medical expenses and received $3,000 in insurance reimbursements, your deduction is $3,000 ($12,000 - $3,000 - $6,000).
Keep detailed records. The IRS requires documentation such as receipts, invoices, and statements from providers. Without proof, the IRS may disallow the deduction.
Many people assume all healthcare spending is deductible. That's false. Only expenses that are medically necessary and not reimbursed count. For example, gym memberships-even if recommended by a doctor-are not deductible unless part of a formal treatment plan.
Another error is claiming expenses for family members who aren't dependents. You can only deduct medical costs for yourself, your spouse, and your dependents. If you paid for your adult child's treatment but they're not claimed as a dependent, that cost doesn't count.
A lesser-known rule: travel expenses for medical care are deductible only if the trip is primarily for medical reasons. If you combine a vacation with a medical visit, only the portion of travel time and cost tied to the medical purpose qualifies.
The deduction is most valuable for high-income earners with significant medical costs. A person with $150,000 AGI faces a $11,250 threshold (7.5% × $150,000). If they spent $20,000 on medical care, they could deduct $8,750. At a 24% tax bracket, that saves $2,100 in federal taxes.
Low-income individuals often don't reach the 7.5% threshold. For someone earning $40,000, the threshold is $3,000. If medical costs were $2,500, no deduction is allowed. In this case, taking the standard deduction may be better.
Consider this real-world scenario: A retiree with $70,000 AGI paid $18,000 in medical bills and received $5,000 in Medicare reimbursements. Their threshold is $5,250 (7.5% × $70,000). After subtracting reimbursements, the base is $13,000. The deduction is $7,750 ($13,000 - $5,250). This can reduce their taxable income.
| AGI | 7.5% Threshold | Total Medical Expenses | Reimbursements | Net Deductible Amount |
|---|---|---|---|---|
| $50,000 | $3,750 | $5,000 | $1,000 | $250 |
| $100,000 | $7,500 | $25,000 | $4,000 | $13,500 |
| $200,000 | $15,000 | $30,000 | $0 | $15,000 |
These numbers show that the deduction grows with higher AGI and larger medical spending. However, the benefit diminishes for those near or below the threshold.
The IRS Publication 502, "Medical and Dental Expenses," outlines all eligible costs and provides examples. According to the IRS, expenses must be for the prevention or alleviation of a physical or mental defect or illness. The agency emphasizes that personal comfort or general wellness does not qualify.
For context, the National Taxpayer Advocate reported in 2022 that nearly 15% of filers who itemized claimed medical expense deductions, but fewer than 5% had expenses high enough to make the deduction worthwhile. This suggests the deduction is meaningful only in cases of substantial medical spending.
I once helped a client calculate their medical deduction after a serious injury. They had $42,000 in medical bills, $12,000 in insurance reimbursements, and an AGI of $90,000. The 7.5% threshold was $6,750. After subtracting reimbursements, the base was $30,000. The deduction came to $23,250. That reduced their taxable income by over $20,000, saving them nearly $6,000 in federal taxes.
Understanding how much you can deduct for medical expenses ensures you claim all eligible benefits. Keep accurate records, verify eligibility, and compare itemized versus standard deductions. The IRS sets clear limits, but the real value lies in knowing your numbers.