If you’ve held onto a health savings account (HSA) for several years, it has probably come a long way.
But if you’re about to become eligible for Medicare or already are enrolled in this government program, you need to pay close attention. Your trusty HSA can set off some tax bombs if you’re not careful.
So let’s take a closer look.
What You Need to Know About Medicare and HSAs
Once you’re enrolled in any type of Medicare program, you and your employer can no longer contribute to your HSA.
If you ignore this rule, you’ll face severe tax penalties.
But this doesn’t mean you can’t still use your HSA to your advantage.
How to Use Your HSA With Medicare
You can use your HSA to pay for Medicare premiums including for the following.
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Medicare Part A (Hospital insurance)
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Medicare Part B (Medical insurance)
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Medicare Part C (Medicare Advantage plan)
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Medicare Part D (Prescription drug coverage)
Moreover, you can use your HSA to pay for Medicare-related expenses such as deductibles, copays, and coinsurance.
However, you can not use your HSA funds to pay for Medicare Supplement (Medigap) policy premiums without paying taxes.
Key Benefits Stay With You
Enrolling in Medicare doesn’t mean you’re locking up your HSA. The funds already inside of it can keep growing.
And these days, many HSA providers allow you to invest a portion of your funds in growth-oriented securities like exchange-traded funds (ETFs) and mutual funds.
And even though you can no longer continue contributing to your HSA and enjoy the immediate tax break, your money can still grow tax deferred. Plus, you can always use your HSA funds to cover qualified healthcare expenses. Today, that covers a wide range of medical, dental, and vision-related services.
The 65 Rule
Most people become eligible for Medicare at age 65. And that’s an important year for HSAs too.
Once you turn 65, you can use your HSA money to pay for nonqualified expenses without facing the 20 percent penalty tax. However, you’d still need to pay federal income taxes on the withdrawal and possibly state taxes.
But this means you can reach into your HSA bucket to buy a boat, remodel your home, or pay for a variety of needs in retirement.
Just keep in mind that you can no longer contribute to your HSA after you enroll in any type of Medicare. This is why it’s important to contribute as much as you can to your HSA before you qualify for Medicare.
How to Prepare
If you plan to enroll in Medicare once you become eligible at age 65, you should stop contributing to your HSA before the month of your 65th birthday. If your birthday falls on the first of the month, cease contributions beginning the month before your birthday month.
And if you’re still working, make sure your employer also stops contributing to your HSA before you enroll in Medicare.
If you decide to delay enrolling in Medicare past age 65, you should stop contributing to your HSA up to 6 months before starting Medicare Part A. This is because for most people who delay enrolling in Medicare past age 65, their Medicare Part A coverage will automatically be backdated by up to six months once they enroll. However, this won’t be earlier than the first month you were eligible for Medicare.
If you’re 65 or older and start collecting Social Security benefits, that automatically enrolls you in Medicare Part A. In this case, your Part A coverage would typically be backdated for up to 6 months, but not earlier than the first month you were eligible for Medicare. The 6-month lookback begins when you enroll in Medicare or start getting Social Security retirement benefits.
Beware of the Penalty
The contributions you make toward an HSA while enrolled in Medicare are called “excess contributions.” These excess contributions as well as any earnings they generate through interest or investment gains will be subject to a 6 percent tax penalty.
But you can remedy this situation.
What to Do if You Forget
You can avoid the 6 percent excise tax if you withdraw your excess contributions before the tax filing deadline for the year you made them. This includes any extensions you qualified for.
You’d also need to withdraw any earnings tied to those excess contributions. And you need to include the earnings amount in “other income” on your tax return for the year you withdrew them.
The Bottom Line
You can’t contribute to your HSA once you enroll in Medicare. If you do, you’ll face a 6 percent excise tax on excess contributions as well as their earnings. But your HSA can still be highly beneficial while you’re enrolled in Medicare. You can use HSA funds to cover Medicare premiums, deductibles copays, and coinsurance. Plus, you can always use your HSA funds to cover qualified healthcare expenses tax-free. Moreover, your account has the potential to continue growing throughout your retirement.
The Epoch Times copyright © 2026. The views and opinions expressed are those of the authors. They are meant for general informational purposes only and should not be construed or interpreted as a recommendation or solicitation. The Epoch Times does not provide investment, tax, legal, financial planning, estate planning, or any other personal finance advice. The Epoch Times holds no liability for the accuracy or timeliness of the information provided.
