A Health Savings Account is a tax-advantaged container for medical money

A Health Savings Account (HSA) is a bank account you own that holds money specifically for medical expenses. You put pre-tax dollars into 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), the money rolls over year to year — you do not lose what you do not spend. The account is yours to keep even if you change jobs or insurance plans.

To open an HSA, you must be enrolled in a high-deductible health plan (HDHP) — a specific type of health insurance with lower premiums and higher deductibles. The IRS sets the minimum deductible each year; for 2024, it is $1,600 for individual coverage and $3,200 for family coverage. You cannot have an HSA if you are on Medicare, covered by a spouse's non-HDHP plan, or claimed as a dependent on someone else's taxes.

Key Takeaways

  • You must be enrolled in a high-deductible health plan to open an HSA, and the account belongs to you permanently even if you leave that plan.
  • Contributions reduce your taxable income, growth is tax-free, and withdrawals for may have access to medical expenses are tax-free — a triple tax advantage no other account offers.
  • You can withdraw money for any reason, but non-medical withdrawals before age 65 are taxed as income plus a 20 percent penalty.
  • The money does not expire at the end of the year, so you can save for future medical costs or let the account grow like an investment.
  • You pay for medical care out of pocket first, then reimburse yourself from the HSA whenever you choose — or never, and let the account compound.

How money flows in and out of an HSA

You fund an HSA with pre-tax dollars, meaning the money never touches your regular paycheck. If your employer offers an HSA, you direct a portion of your salary into it before taxes are calculated — similar to how a 401(k) works. If you do not have an employer plan, you open an HSA through a bank or financial institution and make contributions yourself; you then deduct those contributions on your tax return. The IRS sets annual contribution limits; for 2024, you can contribute up to $4,150 for individual coverage or $8,300 for family coverage.

When you incur a medical expense — a doctor visit, prescription, dental work, vision care, mental health treatment — you pay for it with your own money or a credit card. You then withdraw from your HSA to cover that cost, or you keep the receipt and reimburse yourself later. There is no important date to reimburse yourself; you can pay a 2024 medical bill from your HSA in 2026 if you want. This flexibility is one reason HSAs can function as retirement accounts: you can let the money compound for decades and withdraw it for medical costs whenever you need it.

The tax advantage: three ways an HSA saves money

An HSA offers a tax benefit no other account provides. First, contributions are tax-deductible — the money you put in reduces your taxable income for the year, lowering your tax bill. Second, the money inside the account grows tax-free — if you invest your HSA balance in stocks or mutual funds, you pay no tax on the gains. Third, withdrawals for may have access to medical expenses are tax-free — you do not report the withdrawal as income.

may have access to medical expenses include doctor visits, hospital stays, prescription drugs, dental and vision care, mental health treatment, and many over-the-counter items like pain relievers and bandages. They do not include cosmetic procedures, gym memberships, or vitamins (unless prescribed by a doctor). The IRS publishes a full list, and most HSA providers include a searchable database on their website so you can verify whether a specific expense qualifies.

What happens if you withdraw money for non-medical reasons

You can withdraw money from your HSA for any reason at any time. However, if you use it for something other than a may have access to medical expense, the withdrawal is taxed as ordinary income, and you owe an additional 20 percent penalty — unless you are 65 or older. For example, if you withdraw $1,000 for a non-medical expense and you are under 65, you owe income tax on that $1,000 plus a $200 penalty. After age 65, the penalty disappears, and non-medical withdrawals are taxed as income but not penalized.

This penalty structure is why an HSA can function as a retirement account. Once you turn 65, you can withdraw money for any reason without penalty, just like a traditional IRA. Many people use this feature intentionally: they fund an HSA, invest the balance, and let it grow for decades. At retirement, they can withdraw for medical expenses tax-free, or withdraw for anything else and pay only income tax (no penalty). This makes an HSA one of the most flexible long-term savings vehicles available.

HSA ownership and portability

The HSA belongs to you, not your employer. If you leave your job, the account stays open and the money remains yours. You can continue to use it to pay for medical expenses, and you can continue to contribute to it if you remain enrolled in an HDHP (even if it is through a different employer or the individual market). This portability is a major difference from an FSA, which is tied to your employer and typically forfeits unused money when you leave.

You choose which financial institution holds your HSA — your employer may offer one option, but you can open an account elsewhere if you prefer different investment options or lower fees. Some HSAs are straightforward savings accounts that earn minimal interest; others allow you to invest in stocks, bonds, and mutual funds. If you move your HSA to a new provider, you can request a direct transfer (which avoids taxes and penalties) or a rollover (which gives you 60 days to deposit the money into a new HSA). Shopping around for a provider with low fees and good investment choices can save you thousands over time.

Recordkeeping and documentation

You do not need to submit receipts to your HSA provider when you withdraw money, but you must keep records in case the IRS audits you. Save receipts, explanation of benefits statements, and any documentation showing the expense was medical and the date it occurred. If you cannot prove a withdrawal was for a may have access to medical expense, the IRS will treat it as a non-medical withdrawal and assess income tax plus the 20 percent penalty.

Some HSA providers offer debit cards that you can use to pay medical providers directly, which creates an automatic record. Others require you to request a check or bank transfer. If you use the debit card, keep receipts anyway — the card does not prove the expense was may have access to, only that you spent money at a particular vendor. The burden of proof is on you, so organize your records by year and expense type.

How an HSA differs from an FSA

Both HSAs and FSAs let you set aside pre-tax money for medical expenses, but they work differently. An FSA is tied to your employer and typically has a "use it or lose it" rule — money you do not spend by the end of the year (or a short grace period) is forfeited. An HSA is yours permanently, rolls over year to year, and follows you if you change jobs. An FSA does not require an HDHP; you can have an FSA with any health plan. An HSA requires an HDHP and offers investment options; most FSAs do not.

An FSA contribution limit is typically lower — around $3,200 per year — while an HSA limit is higher. If your employer offers both, you can have an FSA and an HSA in the same year, but the combined medical expenses you claim cannot exceed the total you contributed to both accounts. For most people, an HSA is the better choice because the money does not expire and you can invest it, but an FSA makes sense if you have predictable near-term medical expenses and want to use the money quickly.

Frequently Asked Questions

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

Yes. HSA money can be used for may have access to medical expenses of you, your spouse, and your dependents — even if they are not on your health insurance plan. You do not need to be the person receiving the care; you just need to be able to claim them as a dependent or be married to them.

What happens to my HSA if I turn 65 or go on Medicare?

Your HSA does not close when you turn 65 or enroll in Medicare. You can no longer contribute to it once you are on Medicare, but you can continue to withdraw from it for may have access to medical expenses tax-free. After 65, non-medical withdrawals are taxed as income but not penalized, so the account becomes more like a traditional retirement account.

Can I invest my HSA balance, or does it have to sit in a savings account?

It depends on your HSA provider. Some offer only savings accounts; others allow you to invest in mutual funds, stocks, or other securities. Check with your provider about what options are available and whether there are fees for investing. Many people keep a small amount in savings for near-term medical expenses and invest the rest for long-term growth.

What if I do not have any medical expenses — can I just keep the money?

Yes. Unlike an FSA, HSA money does not expire. If you do not spend it, it stays in the account and can grow for years or decades. Many people use this feature to save for retirement medical expenses, which can be substantial.

Do I have to report my HSA on my tax return?

If you contribute through your employer's payroll, your employer reports it and you do not need to report it again. If you contribute on your own, you deduct the contribution on your tax return using Form 8889. You do not report individual withdrawals for may have access to medical expenses, but if you make a non-medical withdrawal, you report it as income and the penalty on Form 8889.