Money goes in before taxes, sits in an account you control, and comes out tax-free only for may have access to medical expenses

An HSA is a savings account tied to a high-deductible health plan. You put pre-tax money into it, the money grows without being taxed, and you withdraw it tax-free to pay for medical costs. The account stays in your name — you own it, not your employer or your insurance company — so the money follows you if you change jobs or retire.

The mechanics are straightforward: your employer or you deposits money, the balance earns interest or investment returns, and you spend it on medical bills. What makes it different from a regular savings account is the tax treatment at every step. Money going in reduces your taxable income. Money sitting in the account is not taxed on its growth. Money coming out for the right reasons is not taxed at all.

Key Takeaways

  • Contributions are made with pre-tax dollars, either through payroll deduction or directly by you, and reduce the income you report to the IRS.
  • You can invest HSA funds in mutual funds or keep them in a cash account, and any growth is not taxed as long as withdrawals are for may have access to medical expenses.
  • may have access to expenses include deductibles, copays, coinsurance, prescriptions, dental work, vision care, and some medical equipment, but not insurance premiums or cosmetic procedures.
  • Withdrawals for non-medical expenses are taxed as income plus a 20 percent penalty if you are under 65; after 65, the penalty disappears but income tax remains.
  • The account has no "use it or lose it" rule — unused money rolls over year to year and can be spent decades later.

How money enters your HSA

If your employer offers an HSA, the easiest route is payroll deduction. You tell your employer how much to contribute each pay period, and that amount comes out before federal income tax is calculated. Your employer may also contribute on your behalf — this is common and reduces the amount you need to set aside yourself. Both your contribution and your employer's contribution count toward the annual limit.

If you are self-employed or your employer does not offer an HSA, you can open one at a bank, credit union, or investment firm and deposit money yourself. You then deduct your contribution on your tax return (Form 1040, Schedule 1) when you file. Either way, the money reduces your taxable income dollar for dollar.

The IRS sets annual contribution limits, which vary by whether you have individual or family coverage. These limits change each year. For 2024, the limit is $4,150 for individual coverage and $8,300 for family coverage, but you should check the current year's limit with your HSA provider or the IRS website, as these amounts increase periodically.

Where the money sits and how it grows

Once money is in your HSA, you choose how it is held. Most HSA providers offer a cash account that earns a small amount of interest, similar to a savings account. Some also let you invest the balance in mutual funds, stocks, or bonds. The growth — whether interest or investment returns — is not taxed. This is the second tax advantage: your money compounds without the IRS taking a cut along the way.

You can keep money in the account indefinitely. There is no deadline to spend it, no "use it or lose it" rule, and no required withdrawals at any age. This means you can save for years and let the balance grow, then use it later in life when medical expenses tend to be higher. Some people treat their HSA as a retirement account specifically for medical costs, contributing the maximum each year and investing conservatively.

The account is portable. If you leave your job, the HSA stays yours. If you change insurance plans or move to a different employer, you can transfer the balance to a new HSA or keep it where it is. The money is always yours to manage.

What counts as a may have access to medical expense

The IRS maintains a detailed list of may have access to medical expenses. The broad categories include deductibles, copays, and coinsurance you owe to your health plan; prescription medications; dental work including cleanings, fillings, and orthodontia; vision care including exams, glasses, and contact lenses; and certain medical equipment like crutches, wheelchairs, and blood pressure monitors. You can also use HSA funds to pay for mental health treatment, physical therapy, and many over-the-counter medications if you have a prescription.

Expenses that do not may have access to include health insurance premiums (with narrow exceptions for COBRA, long-term care insurance, and Medicare premiums after age 65), cosmetic procedures, gym memberships, vitamins without a medical condition diagnosis, and most over-the-counter items unless prescribed. If you are unsure whether a specific expense qualifies, your HSA provider can usually tell you, or you can check IRS Publication 969.

You do not need to submit receipts to your HSA provider when you withdraw money, but you should keep them. The IRS can audit your HSA use years later and ask you to prove that withdrawals were for may have access to expenses. If you cannot prove it, that withdrawal is treated as taxable income plus a 20 percent penalty.

Withdrawals and what happens if you use it for the wrong thing

To withdraw money, you typically use a debit card linked to your HSA, write a check, or request a transfer to your bank account. The process is usually instant or takes one to two business days. You do not need to submit a receipt or get approval beforehand — the responsibility to spend only on may have access to expenses is yours.

If you withdraw money for a non-medical expense before age 65, you owe income tax on that amount plus a 20 percent penalty. For example, if you withdraw $1,000 for a vacation and your tax bracket is 22 percent, you owe $220 in income tax plus $200 in penalty, for a total of $420 in taxes on that $1,000. After age 65, the 20 percent penalty goes away, but income tax remains — at that point, an HSA functions like a traditional IRA for non-medical withdrawals.

There is one exception: if you have a serious health event or change in circumstances (such as losing your high-deductible health plan coverage), you may be able to withdraw funds penalty-free, though income tax still applies. The rules for this are narrow, so check with your HSA provider before assuming you may have access to.

Coordination with insurance and other accounts

Your HSA works alongside your high-deductible health plan. You use the HSA to pay your deductible, copays, and coinsurance. Once you meet your deductible, your insurance starts covering costs. The HSA is your personal fund to bridge the gap between what you pay out of pocket and what insurance covers.

You cannot have an HSA if you are covered by a non-high-deductible health plan, are enrolled in Medicare, or claim someone else as a dependent on your taxes (with limited exceptions). If you have a spouse with their own HSA, each account is separate — you cannot combine them or transfer money between them.

You can also have a Flexible Spending Account (FSA) through your employer, but not in the same year. If you have an FSA, you cannot contribute to an HSA that year. Some employers offer both and let you choose one or the other.

Record-keeping and tax reporting

Your HSA provider sends you a statement each year showing contributions, withdrawals, and interest or investment gains. You do not report the HSA itself on your tax return unless you made contributions outside of payroll. If you contributed through payroll, your employer reports it on your W-2 form, and you do not need to do anything else.

If you contributed money yourself (because you are self-employed or made catch-up contributions), you report those contributions on Form 8889 when you file your taxes. This form also asks you to report the total balance in your HSA and any non-may have access to withdrawals. Keep receipts for all medical expenses paid from your HSA, organized by year, in case of an audit.

Frequently Asked Questions

Can I use my HSA to pay my health insurance premium?

No, with three exceptions: you can use it to pay COBRA premiums if you lost employer coverage, long-term care insurance premiums, and Medicare premiums (Part A, B, D, and supplemental) after you turn 65. Regular health insurance premiums, including those for a spouse or dependent, do not may have access to.

What happens to my HSA if I change jobs?

The account stays yours. You can leave it where it is, transfer it to your new employer's HSA plan, or move it to an HSA at a bank or investment firm. The money and any growth follow you — there is no loss or tax penalty for changing jobs.

Can I withdraw money for my spouse's medical expenses?

Yes, if your spouse is your dependent on your tax return. You can use your HSA to pay for their may have access to medical expenses. If your spouse has their own HSA, they should use theirs first, but there is no rule preventing you from using yours for their care.

Do I have to spend my HSA money by the end of the year?

No. Unlike a Flexible Spending Account, an HSA has no deadline. Money rolls over year to year indefinitely. You can accumulate a balance and spend it whenever you need to, even decades later.

What if I withdraw money and later find out it was not a may have access to expense?

You owe income tax plus a 20 percent penalty on that amount (if you are under 65). The IRS can assess this during an audit if you cannot produce receipts proving the expense was medical. Keep all receipts for at least three to seven years.