It's complicated. From google: * You must pay the premiums with after-tax money. * Your total qualified, unreimbursed medical and dental expenses (including p

It's complicated. From google: * You must pay the premiums with after-tax money. * Your total qualified, unreimbursed medical and dental expenses (including premiums and costs like co-pays, deductibles, prescription medications, etc.) must exceed 7.5% of your Adjusted Gross Income (AGI). * You can only deduct the amount of expenses that exceeds this 7.5% threshold. * You must choose to itemize deductions instead of taking the standard deduction. Most taxpayers use the standard deduction as it is often larger than their total itemized deductions.