What a Medicare Savings Account Does

A Medicare Savings Account (MSA) is a tax-advantaged bank account paired with a high-deductible Medicare plan. Money you put into the account is not taxed, and you use it to pay medical costs that Medicare does not cover—mainly your deductible, copayments, and coinsurance. The account itself earns interest, and any balance you do not spend in a year rolls forward to the next year.

The mechanics are straightforward: you contribute money before taxes are taken out of your paycheck (if your employer offers the plan) or you contribute pre-tax dollars if you are self-employed. When you go to the doctor or hospital, you pay the bill with a debit card linked to the account, or you pay out of pocket and then request reimbursement from the account. The money comes out tax-free because it was never taxed when it went in.

The trade-off is that you must pair the account with a high-deductible health plan (HDHP)—a Medicare plan with a lower monthly premium but a higher amount you have to pay before coverage kicks in. This structure works only if you can afford to cover that deductible from savings.

Key Takeaways

  • Money in a Medicare Savings Account is not taxed when you contribute it and not taxed when you withdraw it for medical costs, making it cheaper than paying medical bills with after-tax dollars.
  • You must be enrolled in a high-deductible Medicare plan to open and use an MSA; the two accounts are legally linked.
  • Your employer may contribute to your MSA, your own contributions reduce your taxable income, and any unused balance carries over year to year without expiration.
  • You can withdraw money for any medical cost Medicare recognizes—deductibles, copays, coinsurance, prescriptions, dental, vision, and hearing aids—but not for insurance premiums or non-medical expenses.
  • If you withdraw money for a non-medical expense before age 65, you pay income tax on that amount plus a 20 percent penalty; after 65, you pay only income tax.

How Contributions Work and Who Can Open One

To open a Medicare Savings Account, you must be covered by a high-deductible Medicare plan. The IRS sets the maximum contribution limit each year—for 2024, the limit is $4,150 for individual coverage and $8,300 for family coverage. These limits change annually, so check with your plan or the IRS website for the current year.

If your employer offers an MSA as part of your health benefits, they usually contribute a portion of the limit on your behalf. You can then add your own money up to the remaining limit. If you are self-employed or your employer does not offer an MSA, you can open one on your own and contribute the full amount yourself, though you will need to set it up through a bank or financial institution that administers MSAs.

Contributions must be made by the tax filing important date (usually April 15) for the year they cover. If you enroll in a high-deductible plan mid-year, your contribution limit is reduced proportionally—you can contribute only for the months you were enrolled.

The Deductible and How the Account Covers It

A high-deductible Medicare plan requires you to pay a set amount out of pocket before Medicare starts paying its share. For 2024, the minimum deductible for an individual HDHP is $1,600; for family coverage, it is $3,200. Once you meet the deductible, Medicare covers a percentage of your costs (usually 80 percent for in-network care), and you pay the rest as coinsurance.

Your Medicare Savings Account is designed to cover this deductible and the coinsurance that follows. When you see a doctor, you pay the bill directly from your MSA debit card or you pay out of pocket and submit a receipt to the account administrator for reimbursement. The account tracks what you have spent toward the deductible, and once you reach it, your Medicare plan's coverage begins.

Because the money in your account was never taxed, you are paying your deductible with pre-tax dollars. If you had a regular savings account and paid the same deductible with after-tax money, you would need to earn more to cover the same cost. An MSA makes that deductible cheaper in real terms.

What You Can and Cannot Pay For

You can withdraw MSA funds tax-free for any medical cost that Medicare recognizes. This includes deductibles, copayments, coinsurance, prescription drugs, dental work, vision care, hearing aids, and mental health services. You can also pay for medical equipment (wheelchairs, crutches, blood pressure monitors) and certain over-the-counter items like bandages and pain relievers if prescribed by a doctor.

You cannot use MSA funds to pay health insurance premiums—not Medicare premiums, not supplemental insurance, not dental or vision insurance. You also cannot use the account for cosmetic procedures, gym memberships, or vitamins unless a doctor prescribes them for a specific medical condition. If you are unsure whether a cost qualifies, ask your plan administrator or check the IRS Publication 969, which lists what counts as a may have access to medical expense.

Keep receipts for everything you pay from your MSA. If the IRS audits your account, you will need to show that the money went to may have access to medical expenses. Withdrawals without documentation can be treated as non-medical withdrawals, which means you owe income tax plus a penalty.

How Money Rolls Over and Grows

Unlike a flexible spending account (FSA), which operates on a "use it or lose it" basis, an MSA has no annual important date. Any money you do not spend in a year stays in the account and carries forward indefinitely. This means you can build a balance over time if your medical costs are lower than your contributions.

The account also earns interest or investment returns, depending on how it is structured. Some MSAs function like savings accounts and earn a small interest rate. Others allow you to invest the balance in stocks, bonds, or mutual funds, similar to a 401(k). The growth is tax-free as long as you use the money for may have access to medical expenses.

This long-term growth is one of the main advantages of an MSA over other tax-advantaged accounts. If you contribute $4,150 a year and spend only $2,000 on medical costs, the remaining $2,150 stays in the account and can grow for years. By the time you reach retirement, you may have a substantial balance to cover medical costs in your 60s and beyond.

What Happens If You Withdraw Money for Non-Medical Costs

If you withdraw money from your MSA for something that is not a may have access to medical expense, the withdrawal is taxable. Before age 65, you owe income tax on the amount plus a 20 percent penalty. After age 65, the penalty goes away, but you still owe income tax on non-medical withdrawals.

For example, if you withdraw $1,000 to pay rent and you are 45 years old, you would owe income tax on that $1,000 plus $200 in penalties. If you are in the 22 percent tax bracket, your total cost would be $420 ($220 in tax plus $200 in penalty). This makes non-medical withdrawals expensive and is why MSAs work best for people who can afford to leave the money in the account.

The penalty does not explore if you lose your high-deductible plan coverage due to circumstances beyond your control—for instance, if your employer stops offering the plan or you lose your job. In those cases, you can withdraw the balance without penalty, though you still owe income tax on non-medical withdrawals.

MSA Accounts After Age 65 and Retirement

Once you turn 65, you are no longer required to be enrolled in a high-deductible plan to keep your MSA. You can switch to traditional Medicare or a Medicare Advantage plan, and your account balance remains yours. Any money you have accumulated can be used to pay Medicare costs—premiums for Medigap supplemental insurance, prescription drug copayments, dental and vision expenses—all tax-free.

After 65, the 20 percent penalty on non-medical withdrawals disappears. If you withdraw money for something other than medical costs, you pay only income tax, not the penalty. This makes the account more flexible in retirement, though it is still most valuable if you use it for medical expenses.

Many people use their MSA as a long-term retirement savings vehicle specifically because of this flexibility. If you have built a large balance by age 65, you have a tax-free pool of money to cover healthcare costs that Medicare does not, which is often substantial in retirement.

Frequently Asked Questions

Can I use my MSA to pay my Medicare Part B or Part D premiums?

No. MSA funds cannot pay any insurance premiums, including Medicare Part B (medical insurance), Part D (prescription drug), or supplemental Medigap insurance. You must pay premiums from another source. However, you can use MSA funds to pay the copayments and coinsurance that come after you have met your deductible.

What happens to my MSA if I change jobs or lose my high-deductible plan?

Your MSA stays with you. The account is yours, not your employer's. If you change jobs, you can take the balance with you. If you lose your high-deductible plan coverage, you can no longer make new contributions, but you can keep the account and use it to pay medical costs. If you withdraw the balance for non-medical reasons, you will owe a penalty only if you are under 65.

Can I invest the money in my MSA like a 401(k)?

Some MSAs allow investment options, but not all. Ask your plan administrator whether your account offers the ability to invest in stocks, bonds, or mutual funds. If it does, any growth is tax-free as long as you use the money for medical expenses. If your account is a straightforward savings account, it will earn only interest.

Do I have to spend my MSA balance every year, or does it roll over?

Your MSA balance rolls over every year with no important date. Unlike a flexible spending account, there is no "use it or lose it" rule. You can let the balance grow for years and use it whenever you need it for medical costs.

What if I die with money still in my MSA?

The balance becomes part of your estate. Your beneficiary inherits the account, but they will owe income tax on any withdrawals they make. If your beneficiary is your spouse, they can treat the account as their own MSA and continue using it tax-free for medical expenses.