You can deduct many medical expenses. You can deduct any expense you pay for the prevention, diagnosis, or medical treatment of physical or mental illness, and any amounts you pay to treat or modify any part or function of the body for health, but not for cosmetic purposes.
(So you can deduct the cost of Lasik eye surgery to correct your vision, but not the BOTOX® injections to smooth the wrinkles around your eyes.) You can also deduct the cost of transportation to the locations where you can receive this kind of medical care, your health insurance premiums, and your costs for prescription drugs and insulin.
Medical expenses are only deductible if you itemize and only if they exceed 7.5 percent of your adjusted gross income (10% if you are subject to the Alternative Minimum Tax). You can only deduct the medical and dental expenses above that floor.
Example: Emma's adjusted gross income was $100,000, and she spent $8,000 on medical expenses. Because her expenses equal at least 7.5 percent of her adjusted gross income, she can take the deduction for the amount above $7,500. Her deduction, then, is for $500.
There is an exception for health insurance premiums paid by self-employed individuals. They can claim 100% of their health insurance premiums as an above-the-line deduction, which reduces their adjusted gross income. Qualified long-term-care expenses may be treated as a medical expense subject to the 7.5 percent of AGI floor, including a specified deductible amount for long-term care insurance premiums, which ranges from $290 to $3,680 in 2007 depending on the age of the policyholder. In 2008, the deductible amounts for long-term care insurance premiums range from $310 to $3,850.
Deducting Medical Expenses for Someone Else
You can deduct medical costs you pay for another person according to the following rules:
Note that these rules are slightly less stringent than those for the dependency exemption. Therefore, it's possible that you can deduct medical expenses you paid for one of your parents even if they filed their own joint return.
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