Whose Medical Expenses Can You Deduct? Generally speaking you can deduct your medical expenses, your spouse’s expenses, or your dependent’s (such as a qualifying child or relative) if you itemize your tax deductions. What Medical Expenses Can I Deduct? Please keep in mind that you can only claim the amount of your medical expenses that exceeds 7.5% of your adjusted gross income. Let’s say your AGI is $35,000. If your medical expenses for the year were $2,700 then you can deduct your expenses that were greater than 7.5% of ...