Supplemental Medicare insurance does not meet the Affordable Care Act minimum requirement for health insurance, but Medicare Part A, Part C, or Medicare Advantage does.
If you itemize deductions, you may claim out-of-pocket premiums for health insurance, including Medicare supplemental insurance, as a medical expense. The deduction is limited to the amount of medical expenses that exceeds 10% of your adjusted gross income (AGI) (7.5% if you were age 65 or older in 2016).
There is a screen in the medical expenses section of TurboTax just for insurance premiums. Note that you should not enter medical insurance premiums reported elsewhere, such as Medicare Part B, C, or D premiums reported on Form SSA-1099. (Click the screenshot below to enlarge it for reference.)
To enter out-of-pocket medical insurance premiums:
- Continue your return in TurboTax Online. (If your return isn't open, you'll need to sign in and click Take me to my return.)
- Click My Account (top right of your screen).
- Select Tools.
- In the pop-up window, select Topic Search.
- In the search bar, type medical expenses.
- In the results box, highlight medical expenses, sch a, then click GO.
- Follow the onscreen instructions. Medical expenses are divided into numerous categories, so you will go through several screens before you get to the the medical insurance premiums screen. (The categories are: prescription medications, medical professionals, medical facility fees, x-ray and lab work fees, long term care services, eye care expenses, medical supplies and equipment, medical travel, insurance premiums, and other medical expenses.)
Note: If using the TurboTax CD/Download software, you'll use the Find function (instead of "My Account") to search for the topic.
Can I deduct medical, dental, and vision expenses? https://ttlc.intuit.com/replies/3301457
