What happens when you open an HSA

A Health Savings Account is a bank account you control, paired with a high-deductible health insurance plan. You put pre-tax money into it, use it to pay medical bills, and any balance you don't spend stays in the account and grows year to year. Unlike a flexible spending account (FSA), which forces you to spend the money or lose it, an HSA is yours to keep.

To open one, you need to be enrolled in a high-deductible health plan (HDHP) — a specific type of insurance with a lower monthly premium but a higher deductible. Your employer may offer an HSA through payroll, or you can open one independently at a bank or investment firm. The account itself is separate from your insurance; the insurance is just the requirement to have one.

Once the account is open, you can contribute money directly from your paycheck (if your employer offers it) or deposit money yourself. The money goes in untaxed, meaning you don't pay federal income tax on it. That's the first financial advantage: a dollar you put in costs you less than a dollar from your regular paycheck.

Key Takeaways

  • An HSA is a savings account you own, paired with a high-deductible insurance plan, and money in it rolls over year to year instead of disappearing.
  • Contributions are made with pre-tax money, so you pay less in federal income tax than you would on the same amount in regular income.
  • You can withdraw money tax-free only for may have access to medical expenses — doctor visits, prescriptions, dental work, and some other costs, but not insurance premiums or over-the-counter items without a prescription.
  • After age 65, you can withdraw money for any reason without penalty, though non-medical withdrawals are taxed as regular income.
  • The account earns interest or investment returns depending on how you hold the money, and unused balances stay in the account indefinitely.

How money flows in and out

Money enters an HSA in three ways. If your employer offers one, you can have contributions deducted from your paycheck before taxes are calculated — this is the easiest route because your employer handles the paperwork. You can also contribute on your own by depositing money directly to the account, though you'll need to claim the deduction on your tax return. A third option is rolling over money from another HSA if you change jobs or accounts.

The annual contribution limit varies by year and by whether you have individual or family coverage. For 2024, the limit is $4,150 for individual coverage and $8,300 for family coverage, but these numbers change annually. Your HSA provider will tell you the current limit when you open the account.

Money comes out when you pay for may have access to medical expenses. These include doctor visits, hospital stays, prescription medications, dental work, vision care, mental health treatment, and some medical equipment. Over-the-counter items like pain relievers or cold medicine don't count unless you have a prescription from a doctor. Insurance premiums themselves — what you pay monthly for coverage — are not may have access to expenses, with one exception: you can use HSA money to pay for COBRA continuation coverage or premiums while you're on unemployment.

You withdraw money by writing a check from the account, using a debit card the provider gives you, or requesting a transfer. Some providers let you submit receipts and get reimbursed later, which is useful if you want to keep the money invested and only withdraw when you need it.

What makes an HSA different from other accounts

The main difference between an HSA and an FSA is what happens to unused money. With an FSA, you must spend the balance by the end of the year or lose it — the "use it or lose it" rule. An HSA has no important date. Money you don't spend stays in the account forever, earning interest or investment returns depending on how you hold it. This makes an HSA a genuine savings tool, not just a way to pay this year's bills with pre-tax dollars.

An HSA is also different from a regular savings account because withdrawals for medical expenses are tax-free. If you withdraw $500 for a doctor visit, you don't pay income tax on that $500. If you withdraw money for something that's not a may have access to medical expense before age 65, you pay income tax on it plus a 20 percent penalty — a significant cost that discourages non-medical use.

After age 65, the penalty disappears. You can withdraw money for any reason without the 20 percent penalty, though non-medical withdrawals are taxed as regular income. This transforms the HSA into a retirement account similar to a traditional IRA, except the medical withdrawals remain tax-free for life.

How investment and growth work

Most HSA providers let you keep money in a cash account that earns a small amount of interest, similar to a savings account. Some providers also let you invest the balance in mutual funds or other securities, the way you would in a brokerage account. The choice is yours — you can keep it safe and liquid, or take on investment risk for potentially higher returns.

Any interest or investment gains in the account are not taxed as long as the money is used for may have access to medical expenses. This is a significant advantage over a regular investment account, where you'd owe tax on the gains. If you withdraw money for medical expenses, you don't pay tax on the growth. If you withdraw for non-medical reasons before age 65, you pay tax on the gains plus the 20 percent penalty.

Because the account is yours to keep, you can let money accumulate over many years. Some people use an HSA as a long-term health savings tool, spending out of pocket for routine medical expenses and letting the HSA balance grow. Others use it to pay bills when ready. Both approaches are valid — the account works either way.

What happens when you change jobs or insurance

Your HSA stays with you when you leave a job. The account is in your name, not your employer's, so the money doesn't disappear. You can keep the account open at the same provider, or you can roll the balance to a new HSA at a different bank or investment firm. Rolling over is free and straightforward — you request a transfer, the old provider sends the money to the new one, and you continue using the account.

If you lose high-deductible coverage, you can no longer contribute new money to the HSA, but you can still withdraw money for may have access to medical expenses. The account itself doesn't close. If you regain high-deductible coverage later, you can resume contributions.

If you switch to a different high-deductible plan — whether through a new employer or by changing plans on your own — you can keep the same HSA. The account is independent of which specific plan you're in, as long as you stay enrolled in some HDHP.

Keeping records and proving expenses

You don't have to submit receipts to your HSA provider every time you withdraw money. However, you must keep records of your medical expenses in case the IRS asks. The IRS can audit HSA withdrawals years after they happen, and if you can't prove an expense was may have access to, you'll owe income tax and the 20 percent penalty on that withdrawal.

Keep receipts, invoices, and explanation of benefits (EOB) statements from your insurance. If you paid out of pocket, keep the receipt showing what you paid for. If you used insurance, keep the EOB showing the service was covered. For prescriptions, keep the pharmacy receipt or the label from the bottle showing the medication name and date.

You don't need to file anything with your HSA provider unless they ask. The account provider reports your contributions and distributions to the IRS on Form 5498-SA, and you report your HSA activity on your tax return. If your contributions came from your paycheck, your employer already handled the tax reporting. If you contributed on your own, you claim the deduction on your tax return.

Common situations and what they mean for your account

If you have a spouse with their own high-deductible plan, you each have your own HSA. You cannot combine them or transfer money between them. Each account is independent.

If you become may be able to access for Medicare, you can no longer contribute to an HSA, but you can continue to withdraw money for may have access to medical expenses. Medicare is not a high-deductible plan, so the contribution requirement ends.

If you're claimed as a dependent on someone else's tax return, you cannot open an HSA in your own name. The person claiming you as a dependent must be the one to open and control the account.

If you withdraw money and later realize the expense wasn't may have access to, you can put the money back into the account within a certain timeframe and avoid the penalty. This is called a "correction," and the rules vary by provider, so ask yours what the important date is.

Frequently Asked Questions

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

Yes. The money in your HSA can be used for may have access to medical expenses of you, your spouse, and any dependent children, even if they're not on your insurance plan. You don't need to be married or have them on your plan — the relationship is what matters.

What happens to my HSA if I die?

The account becomes part of your estate. If your spouse is the beneficiary, they can continue using it as an HSA. If a non-spouse inherits it, the account is no longer an HSA, and they owe income tax on the full balance, though not the 20 percent penalty. Name a beneficiary when you open the account to make the process clearer.

Can I use HSA money for dental or vision care?

Yes. Dental work, vision exams, glasses, and contact lenses are all may have access to medical expenses. Cosmetic procedures like teeth whitening or LASIK for convenience are not, but LASIK for vision correction is may have access to.

What if I don't spend all my HSA money in a year?

It stays in the account. There's no important date to spend it, and no penalty for leaving it unused. You can let it accumulate for years and use it whenever you have medical expenses, or save it for retirement healthcare costs.

Can I withdraw HSA money to pay off medical debt from years ago?

Yes, as long as you have receipts proving the expense was may have access to and occurred while you had an HSA. The IRS allows you to reimburse yourself for past medical expenses, even if years have passed since you incurred them.