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Medical expense deduction

Did you have major medical or dental bills this year? Recoup some of the costs with this deduction.

If you, your spouse or your kids have had expensive medical or dental bills this year, you could cut your tax bill with the medical expense deduction. Read on to see if you qualify and how much you could claim on your tax return.

What is the medical expense deduction?

The medical expense deduction is a federal tax deduction used to offset the costs of high medical bills. But you must itemize to claim it and your qualified medical expenses must exceed 7.5% of your adjusted gross income.

For example, let’s say your gross income is $80,000, but you contributed $19,000 to your 401(k), sent $12,000 in alimony to your ex-spouse and paid $2,000 in student loan interest. Your adjusted gross income (AGI) would be $47,000 and you could claim any unreimbursed medical expenses exceeding $3,525. So, if your medical expenses topped out at $8,000, you could deduct $4,475 from your taxes.

What qualifies as a medical expense?

The chart below outlines popular medical expenses you can and can’t deduct. Visit the IRS website for a complete list.

Medical expenseDeductible
Breast reconstruction surgery after mastectomy
Cosmetic procedures
Dental treatments
Future medical care
Guide dog or service animal
Health club dues
Home care
Maternity clothes
Medical expenses paid in a different tax year
Medicines from other countries
Nonprescription drugs, excluding insulin
Personal use items like toothpaste and deodorant
Teeth whitening
Transportation costs for medical care
Vitamins and supplements
Wigs for patients who have lost their hair due to illness

How much is the medical expense deduction worth in 2021?

Deduct all unreimbursed medical expenses that exceed 7.5% of your adjusted gross income.

Why does my tax form say there’s 10% threshold for medical expenses?

A law passed in December 2019 that preserved the medical expense deduction at 7.5% for tax years starting in 2019. If you used Form W-4 to calculate your medical expense deduction before December 31, 2019, the IRS recommends redownloading Form W-4 and using the new revision that lists the 7.5% amount.


The medical expense deduction has these limitations:

  • Only expenses paid this year qualify. You can only claim expenses that you paid this year. So, if you had surgery in 2021 but won’t pay the bill until 2022, you can’t write it off on your 2021 tax return.
  • Reimbursed expenses don’t count. If your insurance company reimburses you for an expense, you can’t claim it on your return.
  • State deductions vary. Even if you don’t qualify for the federal deduction, you may qualify on the state level if it has a lower AGI threshold. Before you file your return, check to see what state medical expense deductions may be available to you.

How much was the medical expense deduction worth in previous years?

The medical expense deduction has fluctuated between 10% and 7.5% in previous years. Between 2013 and 2016, the threshold was 10% for most taxpayers or 7.5% for anyone over age 65. In 2017 and 2018, the medical deduction floor was dropped, and you could only deduct unreimbursed medical expenses that exceeded 7.5% of your AGI.

Most notably, while it was scheduled to go back up to 10% for tax year 2019, federal law kept the percentage at 7.5% for tax years 2019 and 2020.

Who qualifies for the medical expense deduction?

You’re eligible to claim this deduction as long as your medical expenses exceed 7.5% of your AGI.

How to calculate the medical expense deduction

Follow these four steps to calculate your medical expense deduction or to see if you qualify:

  1. Add up your total out-of-pocket medical expenses for the year.
  2. Calculate your AGI by subtracting 401(k) or IRA contributions and itemized deductions from your gross income.
  3. Multiply your AGI by 7.5% to determine how much of your medical expenses don’t qualify.
  4. Subtract the number in Step 3 from your total out-of-pocket expenses. This amount is how much your medical expense deduction is worth for this year. If 7.5% of your adjusted gross income is less than your total medical expenses, then you don’t qualify for the deduction.

For example, if your AGI is $40,000, then any medical expense over the $3,000 limit qualifies for the medical expense deduction. So, if your out-of-pocket medical expenses were $5,000, you could write off $2,000. But if your medical expenses were $3,000 or less, you wouldn’t qualify.

What to watch out for

The medical expense deduction has these potential drawbacks:

  • You must keep detailed records. You’ll need to keep detailed records of any out-of-pocket medical expenses you paid this year. That could include receipts, medical bill statements, checks and more.
  • It may not make sense to itemize. Simply because you qualify for the medical expense deduction doesn’t mean you should take it. If the total amount of your itemized deductions is less than your standard deduction, you’ll save more money by taking the standard deduction.

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Taxpayers who qualify for the medical expense deduction may also qualify for the:

  • Child and dependent care tax credit. If you paid for dependent care for a child, an incapacitated spouse or adult dependent, you could qualify for this credit worth up to $700.

Bottom line

If you or your family have racked up major medical or dental bills this year, you could offset some of the costs with the medical expense deduction. But your unreimbursed expenses must exceed 7.5% of your AGI to qualify, and you’ll have to itemize your taxes.

If you’re unsure about which medical expenses qualify, consider hiring a tax professional or using a top-rated online service that can help you figure it out. These services also calculate whether you’ll save more money by going with the standard or itemized deduction.

Frequently asked questions

What form do I use to claim the medical expense deduction?

Use Schedule A to claim all your itemized deductions, including the medical expense deduction.

When is my health insurance premium tax deductible?

If you paid for your health insurance premiums with after-tax dollars, then they’re a qualified medical expense. However, you can only claim them if your total out-of-pocket costs exceed 7.5% of your AGI.

Where can I find my adjusted gross income?

Your AGI is listed on line 7 of Form 1040.

Or, calculate it from your W2 by taking your gross income and subtracting any itemized deductions you qualify for, including:

  • 401(k) and IRA contributions.
  • Health savings account contributions.
  • Student loan interest.
  • Alimony.
  • Qualified moving expenses.
  • Self-employment taxes.

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