Deducting a parent's medical expenses on Schedule A

The Schedule A medical deduction is the caregiver benefit people most often assume will catch their spending, and most often the one that quietly does nothing. Two hurdles stand in the way: the deduction only counts medical costs above 7.5% of your adjusted gross income, and you only benefit if you itemize instead of taking the standard deduction. This guide shows exactly when it is a real lever and when it is a mirage, so you stop counting on money that is not there.

How the medical deduction works

Under IRC §213, you can deduct unreimbursed medical and dental expenses you pay for yourself, your spouse, and your dependents. But two things limit it:

1. The 7.5% AGI floor. You can only deduct the portion of qualified medical expenses that exceeds 7.5% of your adjusted gross income. If your AGI is $185,000, the floor is $13,875, and only spending above that amount is deductible at all.
2. You must itemize. The medical deduction lives on Schedule A. You only see any benefit if your total itemized deductions (medical above the floor, plus state and local taxes, mortgage interest, charitable gifts, and so on) exceed your standard deduction. With today's large standard deduction, most households do not itemize.

Whose medical costs you can include

You can add a parent's medical expenses to your own Schedule A if the parent qualifies as your dependent for medical-expense purposes. As with a Health FSA, the medical-expense definition of dependent is slightly more forgiving than the one for the dependency exemption: a parent can qualify even if their gross income was over the dependency limit, as long as you provided more than half their support and the relationship test is met. See our guide on claiming an elderly parent as a dependent for the underlying tests, and confirm the medical-expense variation in Publication 502.

Which of a parent's costs qualify

The qualified medical expenses are the same §213(d) list that governs the Health FSA, detailed in IRS Publication 502:

• Medicare Part B and Part D premiums, and other insurance premiums the parent pays with after-tax money.
• Long-term care services that qualify as medical care, and qualified long-term-care insurance premiums (subject to age-based caps).
• Nursing-home or assisted-living costs to the extent they are for medical care rather than personal or custodial living.
• Doctor, hospital, prescription, dental, and vision costs, plus medical equipment and home modifications for a medical reason.
• Mileage to and from medical appointments, at the IRS medical mileage rate.

Crucially, you can only deduct expenses that were not reimbursed from another source. A cost you already paid tax-free through your Health FSA cannot also be deducted here; that would be claiming the same dollar twice.

The interaction with FSAs: order matters

For most caregivers, the pre-tax accounts come first and the deduction comes second, if at all. Every dollar of a parent's medical cost you can route through a Health FSA is saved at your full marginal rate plus FICA, with no floor to clear. Only the costs left over after the FSA, and only if they push you above both the 7.5% floor and your standard deduction, do anything on Schedule A. Because the FSA has no floor and the deduction has a steep one, fund the FSA first and treat Schedule A as a possible bonus for high-cost years.

When Schedule A actually becomes a real lever

The deduction is genuinely valuable in specific, usually high-cost, situations:

• A catastrophic-cost year. Full-time memory care or a long nursing-home stay for a dependent parent can run tens of thousands of dollars, easily clearing the 7.5% floor and tipping you into itemizing.
• A lower-AGI household with large bills. The floor is a percentage, so a lower AGI means a lower dollar threshold to clear.
• Bunching. Concentrating elective medical costs into a single tax year can push that year over the floor when spreading them across two years would leave both below it.

The short version

You can deduct a dependent parent's unreimbursed medical costs, but only the part above 7.5% of your AGI, and only if you itemize. For most caregivers the floor and the standard deduction together make it worth nothing, which is exactly why the pre-tax FSAs matter more. Where it does pay off is a catastrophic-cost year, a lower-AGI household, or a deliberately bunched year.

A note on what this is

This guide is education, not tax advice. The AGI floor, the standard deduction, and the rules on qualified expenses are set by federal law and adjusted over time; the 7.5% floor in particular has been changed by Congress before. Figures here are for the 2026 tax year; confirm the current rules against IRS Publication 502 and the Schedule A instructions, and talk to a tax professional about your own return.

Sources

• IRS Publication 502, Medical and Dental Expenses. The authoritative list of qualified medical expenses and the rules on deducting a dependent's costs.
• 26 U.S. Code §213, Medical, dental, etc., expenses. The statute setting the 7.5%-of-AGI floor and defining deductible medical care.
• IRS Schedule A (Form 1040), Itemized Deductions. Where the medical deduction is claimed, and the itemize-versus-standard comparison.
• IRS annual inflation adjustments. Source for the current standard deduction that the itemized total must beat.

Related guides

• Guide 03 · Health FSAA Health FSA for a dependent's medical costs
• Guide 01 · The dependent testCan you claim your elderly parent as a dependent? The rules
• Guide 02 · Dependent Care FSAUsing a Dependent Care FSA for a parent's care