How money moves in and out of your HSA

A Health Savings Account is a bank account you own that holds money specifically for medical expenses. You put pre-tax dollars in, the money sits there earning interest, and you withdraw it to pay for doctor visits, prescriptions, dental work, or other medical costs. The account stays yours even if you change jobs or health insurance — it does not belong to your employer or insurance company.

Money enters your HSA in three ways: you contribute directly from your paycheck (if your employer offers payroll deduction), you contribute on your own during tax season, or your employer contributes on your behalf. The IRS sets annual limits on how much can go in. For 2024, the limit is $4,150 for individual coverage and $8,300 for family coverage, though these numbers change yearly. You can contribute up to the limit regardless of how much you actually spend on medical care.

Money leaves your account when you pay for a may have access to medical expense — which includes copays, deductibles, prescriptions, dental work, vision care, mental health treatment, and many other costs. You can withdraw money by debit card, check, or transfer. Unlike a flexible spending account (FSA), you do not lose unspent money at the end of the year. Whatever you do not use stays in the account and rolls forward indefinitely.

Key Takeaways

  • You must be enrolled in a high-deductible health plan (HDHP) to open or contribute to an HSA, and you cannot be claimed as a dependent on someone else's tax return.
  • Contributions reduce your taxable income, and withdrawals for may have access to medical expenses are tax-free, making the account a triple tax advantage if used correctly.
  • Money you do not spend stays in the account forever and can be invested in stocks, bonds, or mutual funds to grow over time.
  • Withdrawals for non-medical expenses are taxed as income plus a 20 percent penalty if you are under 65, but the penalty disappears once you turn 65.
  • You keep the account even if you leave your job, switch insurance, or no longer may have access to to contribute — the money remains yours to use for medical expenses anytime.

Who can open an HSA and when

To open an HSA, you must be enrolled in a high-deductible health plan (HDHP) — a specific type of insurance that the IRS recognizes. For 2024, an HDHP has a deductible of at least $1,600 for individual coverage or $3,200 for family coverage. You cannot have other health insurance at the same time (with rare exceptions like dental or vision coverage), and you cannot be claimed as a dependent on someone else's tax return.

You can open an HSA through your employer if they offer one, or you can open one independently at a bank or financial institution. The account must be set up before the end of the tax year if you want to make contributions for that year. If you become ineligible mid-year — for example, because you switched to a regular insurance plan — you can no longer contribute, but the money already in the account stays yours and you can still withdraw it for medical expenses.

How contributions work and what they save you in taxes

When you contribute to an HSA, that money is removed from your taxable income. If your employer offers payroll deduction, the contribution comes straight from your paycheck before taxes are calculated — you never pay federal income tax, Social Security tax, or Medicare tax on that money. If you contribute on your own during tax season, you deduct the contribution on your tax return, which lowers your taxable income and reduces the taxes you owe.

The tax savings compound. A person in the 22 percent federal tax bracket who contributes $4,150 saves roughly $913 in federal taxes alone. Add state income tax and payroll taxes, and the actual savings can exceed 30 percent of the contribution. This is why an HSA is sometimes called a "triple tax advantage" — the money going in is not taxed, the interest or investment gains are not taxed, and withdrawals for medical expenses are not taxed.

You do not have to contribute the maximum amount. You can put in $100 or $5,000 or anything in between, as long as you stay under the annual limit. If you contribute more than the limit, the excess is taxed and you owe a 6 percent penalty on the overage each year until you withdraw it.

What counts as a may have access to medical expense

may have access to medical expenses include almost any cost related to diagnosing, treating, or preventing illness or injury. This covers doctor visits, hospital stays, surgery, prescription medications, dental work, vision care, hearing aids, mental health counseling, and physical therapy. It also includes some less obvious costs: over-the-counter pain relievers and allergy medicine (with a prescription), insulin, diabetic supplies, and even certain medical equipment like crutches or a blood pressure monitor.

What does not count: cosmetic procedures (unless medically necessary), teeth whitening, gym memberships, vitamins (unless prescribed), and most over-the-counter items without a prescription. Insurance premiums generally do not count either, with one exception — you can use HSA funds to pay for long-term care insurance premiums up to a certain limit set by the IRS.

You do not need to withdraw money immediately when you incur an expense. You can pay out of pocket and reimburse yourself from the HSA later — even years later. Keep receipts and documentation in case the IRS asks questions, but there is no deadline for when you must withdraw the money.

Investment options and how your money can grow

Most HSAs start as savings accounts earning a small amount of interest. But once your balance reaches a certain threshold — often $1,000 to $2,500, depending on the provider — you can invest the money in stocks, bonds, mutual funds, or other securities. This means your HSA can grow significantly over time, especially if you do not need to withdraw the money immediately.

The investment earnings are tax-free as long as you withdraw the money for may have access to medical expenses. If you invest $4,000 and it grows to $6,000, you owe no tax on that $2,000 gain when you use it for medical costs. This makes an HSA a powerful retirement savings tool — you can contribute the maximum each year, invest it, and let it compound tax-free for decades. Many people use their HSA as a secondary retirement account, paying medical expenses out of pocket and leaving the HSA to grow.

Different providers offer different investment options, so compare what is available before you open an account. Some employers' HSA plans are limited; others offer a full range of low-cost index funds and ETFs.

What happens if you withdraw money for non-medical expenses

If you withdraw money from your HSA for something that is not a may have access to medical expense, that withdrawal is treated as taxable income. You owe federal income tax on the amount, plus a 20 percent penalty. So if you withdraw $1,000 for a non-medical expense and you are in the 22 percent tax bracket, you owe roughly $420 in taxes and penalties combined.

The 20 percent penalty applies only if you are under 65. Once you turn 65, you can withdraw money for any reason without the penalty — you still owe income tax on non-medical withdrawals, but the extra 20 percent penalty disappears. This is why some people treat an HSA as a retirement account: after 65, it functions like a traditional IRA, except that withdrawals for medical expenses remain tax-free.

If you accidentally withdraw money for a non-medical expense, you can put it back into the account (called a "recontribution") within a certain timeframe to avoid the penalty, though rules vary by provider. Talk to your HSA administrator if this happens.

How your HSA interacts with insurance and deductibles

Your HSA is separate from your insurance. When you go to the doctor, your insurance processes the claim and applies it to your deductible and out-of-pocket maximum. You can use HSA funds to pay your deductible, copays, and coinsurance — these are all may have access to expenses. But the HSA does not reduce your deductible or change how your insurance works. You still have to meet your deductible before insurance starts paying its share.

Many people use their HSA to cover the deductible on their high-deductible plan. If your deductible is $2,000 and you have $4,000 in your HSA, you can pay the deductible from the account and still have $2,000 left for other medical costs. This is one reason an HSA pairs well with an HDHP — the account helps offset the higher deductible.

If you have multiple types of insurance (for example, your own plan plus coverage through a spouse), you can only contribute to one HSA. The IRS does not allow dual HSAs, even if you are covered by two separate high-deductible plans.

Keeping records and what the IRS might ask for

You do not have to submit receipts to your HSA provider every time you make a withdrawal for a medical expense. But you should keep records — receipts, invoices, explanation of benefits statements — in case the IRS audits you. The IRS can ask for documentation of any withdrawal, and if you cannot prove it was for a may have access to expense, you owe taxes and penalties on that amount.

The burden of proof is on you. Your HSA provider does not verify whether your withdrawals are actually for medical expenses; they just process the transaction. This means you need to track what you spend and why. Many people keep a folder of receipts or take photos of invoices and store them digitally.

If you receive a distribution from your HSA that was not for a may have access to medical expense, your provider will report it to the IRS on Form 1099-SA. You then report this on your tax return. If you cannot document that the withdrawal was medical, you owe income tax plus the 20 percent penalty.

Frequently Asked Questions

Can I use my HSA to pay for my spouse's or child's medical expenses?

Yes. As long as the person is your tax dependent or spouse, their medical expenses count as may have access to expenses for your HSA. You do not have to be on the same insurance plan. This is one reason HSAs are valuable for families — one person's account can cover medical costs for everyone.

What happens to my HSA if I lose my job?

The account stays yours. You own it, not your employer. You can no longer contribute to it (because you are no longer on an HDHP), but the money in the account remains and you can withdraw it for medical expenses anytime. If you get a new job with an HDHP, you can resume contributions to the same account or open a new one.

Can I use my HSA to pay for health insurance premiums?

Generally no, with two exceptions. You can use HSA funds to pay for COBRA continuation coverage (temporary insurance after job loss) and for long-term care insurance premiums up to an IRS limit. You cannot use it for regular health insurance premiums, including ACA marketplace plans.

Is there a deadline to spend the money in my HSA?

No. Unlike a flexible spending account, there is no "use it or lose it" rule. Money stays in your HSA indefinitely. You can accumulate years of contributions and withdraw them whenever you need to pay for medical expenses, even decades later.

Can I withdraw money from my HSA to pay for my parents' medical expenses?

Only if you claim them as tax dependents. If your parents are your dependents, their medical expenses are may have access to expenses for your HSA. If they are not your dependents, you cannot use HSA funds for their care.