What a Medical Savings Account Actually Is

A Medical Savings Account (MSA) is a tax-advantaged savings account paired with a high-deductible health insurance plan. Money you put in reduces your taxable income, grows tax-free, and comes out tax-free when you use it for may have access to medical expenses. The account itself is separate from your insurance — it sits in a bank or financial institution you choose, and you control what happens to the money inside.

There are two types: Archer MSAs, which are older and rarely available to new enrollees, and Health Savings Accounts (HSAs), which are the modern version and far more common. Both work on the same principle: you set aside pre-tax money, use it for medical costs, and never pay tax on the growth or the withdrawal as long as you follow the rules.

The catch is that you must be enrolled in a high-deductible health plan (HDHP) to open one. An HDHP has a higher deductible than a standard plan — meaning you pay more out of pocket before insurance kicks in — but lower premiums. The MSA is designed to help you save for those out-of-pocket costs.

Key Takeaways

  • You can only open an MSA if you are enrolled in a high-deductible health plan; the account and the insurance are linked requirements.
  • Contributions reduce your taxable income, and withdrawals for may have access to medical expenses are never taxed, but non-medical withdrawals are taxed as income plus a 20 percent penalty.
  • The IRS sets annual contribution limits based on whether your coverage is individual or family; for 2024, individual limits are $4,150 and family limits are $8,300, but these change yearly.
  • Money in an MSA rolls over year to year and belongs to you even if you change jobs or insurance plans, unlike a Flexible Spending Account.
  • You can invest MSA funds in stocks, bonds, or mutual funds once the balance reaches a certain threshold, usually $2,000 to $5,000 depending on your provider.

How Contributions Work and Who Can Make Them

You, your employer, or both can contribute to your MSA in a given year. If you contribute through payroll, the money comes out before taxes are calculated, which lowers your taxable income when ready. If you contribute on your own (called a "catch-up contribution" if you are over 55), you deduct it on your tax return.

Your employer can also contribute on your behalf. If they do, that money does not count as taxable income to you, and it does not reduce the amount you can contribute yourself — you each have separate limits. For example, if your employer puts $2,000 into your MSA and the individual limit is $4,150, you can still contribute $2,150 of your own money that year.

The IRS sets contribution limits annually, and they vary by coverage type. For 2024, the limit for individual coverage is $4,150 and for family coverage is $8,300. If you are 55 or older, you can add an extra $1,000 per year as a catch-up contribution. These limits change most years, so check the IRS website or your plan documents before you contribute.

You must be enrolled in an HDHP for the entire month in which you contribute. If you drop the plan mid-month, you cannot contribute for that month. If you leave the HDHP and enroll in a standard plan, you can no longer contribute to the MSA, though you can keep the account and use the money that is already in it.

What You Can Spend MSA Money On

The IRS maintains a detailed list of may have access to medical expenses. The broad categories are: doctor visits, hospital stays, prescription drugs, dental work, vision care, mental health treatment, and medical equipment like wheelchairs or hearing aids. Preventive care — annual physicals, vaccinations, cancer screenings — also counts.

Some expenses that seem medical do not may have access to. Over-the-counter medications like cold medicine or pain relievers do not count unless you have a prescription. Cosmetic procedures do not count unless they treat an injury or illness. Gym memberships and general wellness programs do not count. Health insurance premiums themselves do not count, except for COBRA continuation coverage, long-term care insurance, or health insurance you buy while unemployed.

You can use MSA money for your spouse and dependents, even if they are not on your health plan. You do not have to be the one receiving the care — if your child needs braces, you can pay for them from your MSA. The expense must be incurred by someone you can claim as a dependent on your tax return.

Keep receipts and documentation for every withdrawal. The IRS does not require you to submit them when you withdraw the money, but if you are audited, you need to prove that the expense was may have access to. Many MSA providers send you a debit card that you can use at pharmacies and medical providers, which creates a record automatically.

The Tax Rules: What Happens When You Withdraw

Withdrawals for may have access to medical expenses are never taxed and do not count as income. You do not report them on your tax return. If you withdraw $500 for a doctor visit, you pay no tax on that $500, and it does not affect your taxable income.

Withdrawals for non-medical expenses are taxed as ordinary income, plus you owe a 20 percent penalty on top. If you withdraw $1,000 for something that does not may have access to — say, a gym membership — you pay income tax on that $1,000 at your regular tax rate, plus an additional $200 penalty. After age 65, the penalty goes away, but the income tax remains.

You do not have to withdraw money in the same year you incur the expense. You can pay for a medical bill out of pocket, keep the receipt, and reimburse yourself from the MSA years later. This is a powerful feature: you can let the money grow invested, and withdraw it whenever you need it, as long as you have documentation that the expense was incurred.

If you leave your HDHP and enroll in a different type of health insurance, you can no longer contribute to the MSA, but the money already in the account stays yours. You can continue to withdraw it for may have access to medical expenses for the rest of your life, with no time limit.

How MSA Money Grows and Where It Sits

When you open an MSA, you choose a financial institution — usually a bank, credit union, or brokerage firm. The money sits there in whatever form you choose: a savings account, a money market account, or invested in stocks and bonds. Unlike a Flexible Spending Account, which you must use or lose each year, MSA money rolls over. Whatever you do not spend stays in the account and grows.

Most MSA providers require a minimum balance — often $2,000 to $5,000 — before you can invest the money. Below that threshold, the funds typically sit in a low-interest savings account. Once you hit the minimum, you can move the money into mutual funds, index funds, or individual stocks. The growth is tax-free, so you never pay capital gains tax on investment earnings inside the account.

You own the account outright. If you change jobs, the MSA comes with you. If you change health insurance plans, the MSA stays in your name and under your control. The only restriction is that you can no longer contribute to it if you are not enrolled in an HDHP, but you can withdraw from it indefinitely for may have access to expenses.

MSAs Compared to Flexible Spending Accounts and Health Insurance Deductibles

An MSA and a Flexible Spending Account (FSA) both let you set aside pre-tax money for medical expenses, but they work differently. An FSA is "use it or lose it" — money you do not spend by the end of the year is forfeited, though some plans allow a small carryover or grace period. An MSA has no time limit; money rolls over forever. An FSA does not require a high-deductible plan; you can have an FSA with any health insurance. An MSA requires an HDHP.

An MSA is also different from straightforward having a high deductible. The deductible is what you pay out of pocket before your insurance starts paying. The MSA is a separate savings account designed to help you cover that deductible. You can use MSA money to pay your deductible, or you can use it for any other may have access to medical expense. The insurance and the account are separate tools.

If you have a choice between an FSA and an MSA, the MSA is usually better if you expect to have leftover money most years, because you can keep it and invest it. An FSA is better if you have predictable annual medical expenses and want simplicity without investment decisions.

Frequently Asked Questions

Can I have an MSA if I am covered under my spouse's health plan?

No. You can only open an MSA if you are the one enrolled in the HDHP. If your spouse has the HDHP and you are a dependent on their plan, you cannot open your own MSA. Your spouse can contribute to their MSA on behalf of both of you, up to the family limit.

What happens to my MSA if I retire before age 65?

The account stays yours. You can no longer contribute once you leave the HDHP, but you can withdraw money for may have access to medical expenses at any time. If you withdraw for non-medical reasons before 65, you pay income tax plus the 20 percent penalty. After 65, the penalty disappears, though income tax on non-may have access to withdrawals remains.

Can I use my MSA to pay health insurance premiums?

Not regular premiums. You cannot use MSA money to pay your monthly health insurance bill. You can use it to pay COBRA premiums if you lose coverage, long-term care insurance premiums, or health insurance premiums while you are unemployed and receiving unemployment benefits.

What if I contribute too much to my MSA in a year?

The excess contribution is taxed as income, and you owe a 6 percent excise tax on the overage. You must withdraw the excess and any earnings on it by the tax filing important date. Talk to your MSA provider or a tax professional if you think you have over-contributed.

Can I transfer money from my MSA to another account?

You can transfer your MSA to another financial institution if you want to change providers — this is called a trustee-to-trustee transfer and is not taxed. You cannot transfer MSA money to a regular savings account or another type of account. The money must stay in an MSA until you withdraw it for medical expenses or non-medical purposes.