How to Deduct Medical Expenses on Your Tax Return
You may be able to write off what you pay out of pocket for health care, but only to the extent that those expenses exceed 10% of your adjusted gross income.
Question: What are the rules for deducting medical expenses on my tax return?
Answer: Many medical expenses that you pay out of pocket for yourself, your spouse and your dependents may be tax-deductible, but you can only deduct those expenses to the extent they exceed 10% of your adjusted gross income in 2017 (for 2016, the cut-off was 7.5% for people age 65 and older and 10% for everyone else). You also need to itemize deductions to take advantage of this write-off.