Yes, Medicare Supplement premiums are tax deductible in the sense that the IRS treats them as a qualified medical expense. Whether you get an actual tax break from paying them is a different question, and for most retirees the answer is no. To convert Medigap premiums into money off your tax bill, you have to itemize deductions instead of taking the standard deduction, and your total medical costs for the year have to exceed 7.5% of your adjusted gross income. Self-employed retirees have a separate path that avoids both requirements.
Medigap Counts as a Qualified Medical Expense
The IRS lets you include premiums for any insurance policy that covers medical care when you total up deductible medical expenses. Publication 502 specifically identifies premiums for supplemental medical insurance as includible.1Internal Revenue Service. Publication 502 (2025), Medical and Dental Expenses That covers Plan G, Plan N, and every other lettered Medigap policy.
Qualifying is the easy part. Every dollar of Medigap premiums paid during the year gets added to your other out-of-pocket medical costs to reach a gross total. That total then runs through two filters that decide whether any of it actually reduces your taxes.
You Have to Itemize
Medical expenses live on Schedule A. You cannot take them as an adjustment to income, and you cannot take them alongside the standard deduction.2Internal Revenue Service. Instructions for Schedule A (Form 1040) (2025) Each year you choose one or the other, whichever produces the lower tax bill.
For the 2026 tax year the standard deduction is $16,100 for single filers and $32,200 for married couples filing jointly.3Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026, Including Amendments From the One, Big, Beautiful Bill Taxpayers 65 or older add $2,050 (single) or $1,650 per qualifying spouse (joint). A married couple both over 65 starts with a combined standard deduction of $35,500 before any itemized deductions enter the picture.
To itemize profitably, your Schedule A total, which includes state and local taxes (capped at $10,000), mortgage interest, charitable gifts, and deductible medical expenses, has to beat that floor. Many retirees, especially those with paid-off mortgages in low-tax states, cannot get there.
The 7.5% AGI Floor
If you clear the itemizing hurdle, only the portion of your total medical expenses that exceeds 7.5% of your adjusted gross income is deductible.4Office of the Law Revision Counsel. 26 USC 213 – Medical, Dental, Etc., Expenses This floor is permanent under current law.
The math is unforgiving. A married couple with $80,000 in AGI has a floor of $6,000. If they paid $4,200 in Medigap premiums and had $1,500 in other medical costs, their $5,700 total falls short of the floor and their medical deduction is zero. The entire amount is absorbed by the threshold.
Where the deduction becomes real is in years with unusually large expenses: major dental work, a hospital stay, hearing aids, or home modifications for a disability. Stacking Medigap and other Medicare premiums on top of that big expense can push the total past the floor and make itemizing worth doing.
The Self-Employed Shortcut
If you have net self-employment income, you can likely deduct Medigap premiums as an above-the-line adjustment on Schedule 1 instead of on Schedule A. This is the self-employed health insurance deduction, and it skips both the itemizing requirement and the 7.5% AGI floor.5Internal Revenue Service. Instructions for Form 7206 (2025)
The IRS allows Medicare premiums you voluntarily pay, including premiums for coverage similar to qualifying private health insurance, in this calculation. Medigap, Part B, and Part D all fit. You figure the deduction on Form 7206 and report it on Schedule 1, line 17.
Two limits apply:
- The deduction cannot exceed your net self-employment profit for the year, reduced by the deductible portion of your self-employment tax. If your Schedule C shows $8,000 in profit and $565 goes to the self-employment tax deduction, your maximum health insurance deduction is $7,435.
- You cannot claim the deduction for any month you were eligible to participate in a subsidized health plan through your employer, your spouse’s employer, or a dependent’s employer. Eligibility alone disqualifies you, even if you never enrolled.6Internal Revenue Service. 2025 Instructions for Form 7206 – Self-Employed Health Insurance Deduction
Retirees who do consulting, freelance, or small-business work should check this route first. It is far more accessible than the Schedule A path.
Other Medicare Premiums Deduct the Same Way
Medigap premiums follow the same rules as premiums for the other parts of Medicare, and all of them stack into the same medical expense total.
- Part B premiums are deductible. If they come out of your Social Security payment, the amount withheld still counts as a medical expense you paid.7Internal Revenue Service. Publication 502 (2025), Medical and Dental Expenses – Section: Medicare Part B
- Part D prescription drug plan premiums are deductible.8Internal Revenue Service. Publication 502 (2025), Medical and Dental Expenses – Section: Medicare Part D
- Part A premiums are deductible if you actually pay them, which happens only when you lack sufficient work history and voluntarily enroll.9Medicare. Costs
- Medicare Advantage (Part C) premiums qualify as medical insurance premiums.
In a year with heavy medical spending, adding every Medicare-related premium to your total can be what pushes you past the 7.5% floor.
HSA and FSA Rules Are Different
Being deductible on your tax return does not mean you can pay Medigap premiums with tax-advantaged account money. Federal law lets you use HSA funds tax-free at age 65 for most health insurance premiums, including Medicare Part B and Part D, but it carves out a specific exclusion for Medicare supplemental policies. The statute permits tax-free HSA distributions for “any health insurance other than a medicare supplemental policy.”10Internal Revenue Service. Distributions for Qualified Medical Expenses (Continued) Use HSA money for Medigap premiums and the distribution becomes taxable income.
HSA funds still work tax-free for out-of-pocket costs like copays, prescriptions, and dental work. Flexible Spending Arrangements are stricter and generally cannot reimburse any health insurance premiums, Medigap or otherwise.11Internal Revenue Service. Publication 969 (2025), Health Savings Accounts and Other Tax-Favored Health Plans
Records to Keep
The IRS requires documentation for any medical expense deduction but does not want you to send it with your return.1Internal Revenue Service. Publication 502 (2025), Medical and Dental Expenses For Medigap and other Medicare premiums, keep:
- Monthly statements or annual summaries from your Medigap insurer, Part D plan, and Medicare Advantage plan showing amounts paid.
- Your SSA-1099 or benefit verification letter showing Part B premiums withheld from Social Security.
- Bills and explanations of benefits for other out-of-pocket costs that feed the medical expense total.
Hold these records for at least three years after filing the return that claims the deduction, which is the standard IRS audit window for most situations.