A health savings account is a tax-advantaged container for money you set aside to pay medical bills

A Health Savings Account (HSA) is a savings account tied to a specific type of health insurance plan. The money you put in is not taxed when you contribute it, grows tax-free while it sits there, and comes out tax-free when you use it to pay for medical expenses. The catch: you can only open one if you are enrolled in a high-deductible health plan (HDHP), and you can only use the money for may have access to medical costs.

Unlike a flexible spending account (FSA), which you lose money in if you do not spend it by the end of the year, an HSA rolls over. The balance stays yours year after year. You own the account and the money in it, even if you change jobs or insurance plans. This makes it different from most other health-related savings tools.

Key Takeaways

  • You must be enrolled in a high-deductible health plan to open and contribute to an HSA; you cannot have one with standard or low-deductible coverage.
  • Money you contribute reduces your taxable income, grows without tax, and withdrawals for medical expenses are not taxed — a three-layer tax advantage.
  • The account belongs to you and carries forward year to year, unlike FSAs which reset annually and have a use-it-or-lose-it rule.
  • may have access to expenses include deductibles, copays, coinsurance, and many over-the-counter items, but not insurance premiums or cosmetic procedures.
  • After age 65, you can withdraw money for any reason without penalty, though non-medical withdrawals are taxed as income.

Who can open an HSA and what the HDHP requirement means

Your health insurance plan must meet the IRS definition of a high-deductible health plan. For 2024, that means your deductible is at least $1,600 for individual coverage or $3,200 for family coverage. Your plan also has a maximum out-of-pocket limit — the most you would pay in a year before insurance covers everything. These numbers change annually.

You cannot have an HSA if you are covered by any other health insurance at the same time, with narrow exceptions for accident, disability, dental, vision, or long-term care plans. You also cannot be claimed as a dependent on someone else's tax return, and you cannot be enrolled in Medicare. If you are married and both spouses have HDHP coverage, you can each open your own HSA, or you can open one family HSA that covers both of you.

How much you can contribute and where the money goes

The IRS sets annual contribution limits. For 2024, you can contribute up to $4,150 if you have individual HDHP coverage, or $8,300 for family coverage. These limits increase slightly most years. You can contribute the full amount at any time during the year, or spread it across months. If you turn 55 before the end of the year, you can add an extra $1,000 catch-up contribution.

The money goes into an account held by a bank, credit union, or other financial institution. You choose where to open it — your employer may offer one through payroll, or you can open one independently. Some HSA providers let you invest the balance in stocks or mutual funds once it reaches a certain threshold, usually $1,000 or $2,000. Others keep it in a savings account earning interest. You control how the money is invested and can move it to a different provider if you want.

What counts as a may have access to medical expense

may have access to expenses are costs related to diagnosing, treating, or preventing disease or injury. This includes deductibles, copays, and coinsurance you owe to your health plan. It covers prescription medications, dental work, vision care, mental health treatment, and physical therapy. Many over-the-counter items count too: pain relievers, allergy medicine, antacids, bandages, and blood pressure monitors are all may have access to.

What does not count: health insurance premiums (with rare exceptions for COBRA or unemployment coverage), cosmetic procedures, gym memberships, and vitamins taken for general wellness. If you are unsure whether a specific item qualifies, the IRS publishes a detailed list, and your HSA provider can usually answer questions about particular expenses.

You do not have to spend the money in the same year you contribute it. You can let it accumulate for years and use it whenever you need it. You also do not need to submit receipts to your HSA provider when you withdraw money, but you should keep them for your tax records in case the IRS asks.

The tax advantages and how they work together

An HSA gives you three tax breaks. First, contributions reduce your taxable income — if you earn $50,000 and contribute $3,000 to an HSA, you only report $47,000 as income. Second, any interest or investment gains inside the account are not taxed. Third, withdrawals for may have access to medical expenses are not taxed. No other savings account offers all three.

If you contribute through your employer's payroll, the contribution is taken out before taxes are calculated, so you save on federal income tax, Social Security tax, and Medicare tax. If you contribute on your own, you deduct it on your tax return. Either way, the tax savings depend on your income and tax bracket — someone in a higher bracket saves more per dollar contributed than someone in a lower bracket.

What happens if you withdraw money for non-medical reasons

Before age 65, if you withdraw money for something other than a may have access to medical expense, you owe income tax on that amount plus a 20 percent penalty. After age 65, the penalty goes away, but you still owe income tax on non-medical withdrawals. This makes an HSA different from a regular savings account — the tax penalty is the price of using it for the wrong purpose.

The exception: if you can show that a withdrawal was for a may have access to expense, the penalty does not explore even if you took the money out years later. Keep receipts and documentation. Some people use an HSA as a retirement account by not touching it until after 65, letting the balance grow for decades, then withdrawing it tax-free for medical expenses in retirement.

HSA versus FSA and other health savings tools

A flexible spending account (FSA) is similar but works differently. FSA contributions also reduce your taxable income, and withdrawals for medical expenses are tax-free. But FSAs have a use-it-or-lose-it rule: money you do not spend by the end of the year is forfeited. You also do not own the account — your employer does. If you change jobs, the money stays with your old employer.

An HSA has no use-it-or-lose-it rule and you own it permanently. The trade-off is that you must have an HDHP to open one, and HDHPs usually have higher deductibles than traditional plans. Some people use both: they contribute to an FSA for predictable near-term medical costs and to an HSA for longer-term savings. You cannot do this if your FSA is a general-purpose FSA, but some employers offer limited-purpose FSAs that work alongside an HSA.

Frequently Asked Questions

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

Yes, if your spouse is your tax dependent. You can also use HSA money to pay for your children's medical expenses, even after they turn 26 and are no longer on your health insurance. The key is that the person receiving the care must be your dependent at the time you claim the deduction on your taxes.

What happens to my HSA if I leave my job?

The account stays yours. Your employer does not own it, and you do not lose the money when you change jobs. You can keep the HSA open with the same provider, move it to a different provider, or roll it into a new HSA. Your new employer may offer an HSA through their plan, but you are not required to use it.

Can I withdraw money from my HSA to pay for dental or vision care?

Yes. Dental work, vision exams, glasses, contacts, and related care are all may have access to medical expenses. You can use HSA money for these costs even if your health plan does not cover them or if you have separate dental and vision insurance.

What if I do not spend all my HSA money in a year?

It rolls over. Unlike an FSA, there is no important date to use the money or lose it. You can let your HSA balance grow for years and use it whenever you need it. This makes it useful as a long-term savings tool for medical costs in retirement.

Can I open an HSA if my employer does not offer one?

Yes. You can open an HSA independently at a bank, credit union, or investment company, as long as you are enrolled in an HDHP. You will contribute the money yourself rather than through payroll deduction, but the tax advantages are the same.