A Health Savings Account is a tax-advantaged savings account tied to a high-deductible health plan

A Health Savings Account (HSA) is a savings account you own and control that holds money specifically for medical expenses. You contribute pre-tax dollars to it, the money grows tax-free, and you withdraw it tax-free when you pay for may have access to medical costs. Unlike a flexible spending account (FSA), which you lose if you don't spend the money by year-end, an HSA rolls over year to year—the balance stays yours indefinitely.

To open an HSA, you must be enrolled in a high-deductible health plan (HDHP)—a specific type of health insurance with a higher deductible than traditional plans but lower premiums. You cannot have an HSA if you're on Medicare, covered by a spouse's non-HDHP plan, or claimed as a dependent on someone else's tax return. The account itself is separate from your insurance; you open it through a bank, credit union, or financial institution, not through your employer or insurance company.

The main advantage is the triple tax benefit: your contributions reduce your taxable income, the money inside grows without being taxed, and withdrawals for may have access to medical expenses are never taxed. This makes an HSA different from a regular savings account, where you pay taxes on interest earned. If you withdraw money for non-medical expenses before age 65, you pay income tax plus a 20 percent penalty; after 65, you pay only income tax (like a traditional IRA).

Key Takeaways

  • You must enroll in a high-deductible health plan to open an HSA; without one, you cannot contribute or maintain the account.
  • Contributions are made with pre-tax dollars, reducing your taxable income in the year you contribute.
  • Money in an HSA rolls over year to year and never expires, unlike FSA funds which are forfeited if unused.
  • You can withdraw funds tax-free only for may have access to medical expenses such as deductibles, copays, prescriptions, and dental or vision care.
  • After age 65, you can withdraw money for any reason without penalty, though non-medical withdrawals are taxed as income.

Contribution limits and who can contribute

The IRS sets annual contribution limits that change each year. For 2024, the limit is $4,150 for individual coverage and $8,300 for family coverage. These limits apply to all contributions combined—whether you contribute through payroll deduction, your employer contributes, or you contribute on your own. If you turn 55 during the year, you can add an extra $1,000 catch-up contribution.

Your employer can contribute to your HSA, and that money counts toward your limit. If you change jobs mid-year, your total contributions across all employers cannot exceed the annual limit. You must track contributions carefully if you've had multiple employers or made contributions on your own. If you over-contribute, you owe taxes on the excess plus a 6 percent excise tax for each year the excess remains in the account.

You can contribute to an HSA only during months you're enrolled in an HDHP. If you drop your HDHP coverage mid-year, you can only contribute a prorated amount for the months you were covered. If you enroll in Medicare, you stop being able to contribute immediately, though you can continue to withdraw for medical expenses.

What counts as a may have access to medical expense

may have access to medical expenses include most out-of-pocket costs: deductibles, copays, coinsurance, and prescription medications. Dental work (fillings, cleanings, orthodontics), vision care (glasses, contacts, exams), and hearing aids all count. Mental health treatment, physical therapy, and over-the-counter medications purchased with a prescription also may have access to. You can use HSA funds to pay for long-term care insurance premiums and certain long-term care services.

Expenses that do not count include health insurance premiums (with narrow exceptions for COBRA, Medicare, and long-term care insurance), cosmetic procedures, gym memberships, and general wellness products like vitamins or supplements unless prescribed by a doctor for a specific medical condition. If you're unsure whether an expense qualifies, the IRS publishes a detailed list, and your HSA provider can also answer specific questions.

You do not need to submit receipts to your HSA provider when you withdraw money, but you must keep records in case of an IRS audit. The burden is on you to prove the expense was may have access to. Many people photograph receipts or keep a spreadsheet of medical expenses and dates.

How to open and manage an HSA

You open an HSA through a bank, credit union, or investment company—not through your employer or insurance company, though your employer may offer a payroll deduction option. Common providers include major banks, online banks, and dedicated HSA administrators. You'll need your Social Security number, proof of HDHP enrollment, and basic identification.

Once open, you decide how the money is invested. Some HSAs function like savings accounts with a small interest rate. Others let you invest in mutual funds or stocks, similar to a brokerage account. If you invest, you bear the market risk, but you also have the potential for growth. Many people use an HSA as a long-term retirement savings tool rather than spending it immediately on medical expenses, because the triple tax benefit makes it more powerful than a regular retirement account for healthcare costs.

You can withdraw money by debit card, check, or transfer to your bank account. Some providers offer a debit card linked directly to the HSA. Keep in mind that if you use the debit card for a non-may have access to expense by mistake, you owe taxes and the 20 percent penalty on that amount. It's safer to pay out of pocket and reimburse yourself later if you're uncertain about an expense.

HSA vs. FSA: key differences

An FSA is also a tax-advantaged account for medical expenses, but it works very differently. FSA contributions are typically limited to $3,200 per year (for 2024), and you must spend the money by December 31 or lose it—there's a small carryover option in some plans, but most money is forfeited. An FSA is tied to your employer and ends if you leave your job. You cannot invest FSA money; it sits in a pool managed by your employer.

An HSA, by contrast, is yours to keep even if you change jobs. The money rolls over indefinitely, and you can invest it. The trade-off is that you must be on an HDHP to have an HSA, whereas an FSA works with any health plan. If your employer offers both, you can use an FSA for predictable near-term expenses (like braces or physical therapy you know you'll need this year) and an HSA for longer-term savings and retirement healthcare costs.

Tax implications and record-keeping

Contributions you make yourself are deducted on your tax return (Schedule 1, line 12, if you file Form 1040). If your employer contributes through payroll deduction, that money never appears on your W-2 as income. Either way, you reduce your taxable income dollar-for-dollar by the amount contributed.

When you withdraw money for a may have access to expense, you report nothing on your tax return—the withdrawal is tax-free. If you withdraw for a non-may have access to expense, you report the withdrawal as income and owe the 20 percent penalty. The HSA provider will send you a Form 1099-SA showing all withdrawals; you use this to reconcile your tax return.

Keep receipts and documentation for all medical expenses you pay with HSA funds. The IRS can audit HSA accounts years later and ask you to prove that withdrawals were for may have access to expenses. If you cannot prove it, you owe back taxes plus penalties. A simple spreadsheet with the date, provider, expense type, and amount is sufficient.

When an HSA makes financial sense

An HSA is most valuable if you expect to have medical expenses and can afford to pay them out of pocket rather than drawing from the HSA immediately. This lets the account grow tax-free over time. If you're young and healthy with minimal medical costs, you can contribute the maximum, invest it, and let it compound for decades—it becomes a powerful retirement savings tool for healthcare costs in your 60s and beyond.

An HSA is less valuable if you have very high medical expenses every year and need to withdraw most of what you contribute. In that case, the tax savings on contributions help, but you lose the growth benefit. An HSA is also not available to you if your employer doesn't offer an HDHP, or if you're on Medicare or another non-HDHP plan.

Compare the HDHP premium to your current plan's premium. If the HDHP is significantly cheaper and you can afford the higher deductible, the HSA contribution room and tax savings often make it worthwhile. If the HDHP premium is only slightly lower, the math may not work in your favor.

Frequently Asked Questions

Can I have an HSA and an FSA at the same time?

No. If you have an FSA, you cannot contribute to an HSA in the same year. However, you can have an HSA and a limited-purpose FSA (which covers only dental and vision) or an HSA and a dependent care FSA. Check with your employer about which combination is allowed under their plan.

What happens to my HSA if I leave my job?

Your HSA stays with you. You own it, not your employer. You can roll it to a new HSA provider, keep it where it is, or transfer it to your new employer's HSA plan if they offer one. The money and any investment growth remain yours indefinitely.

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

Yes, as long as your spouse is claimed as a dependent on your tax return. You can also use it for any dependent's medical expenses. The expense must still be may have access to; the person receiving care doesn't have to be on your health plan.

What if I withdraw money from my HSA and later find out the expense wasn't may have access to?

You owe income tax on that withdrawal plus a 20 percent penalty. You should report it on your tax return. If you discover the error after filing, you can file an amended return. It's better to ask your HSA provider or the IRS before withdrawing if you're unsure.

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

Only in specific cases: COBRA premiums, Medicare premiums (Part A, B, D, and supplemental), and long-term care insurance premiums. You cannot use it for your regular employer health plan premium or an ACA marketplace premium. Check with your HSA provider if you're unsure about a specific premium.