An HSA is a tax-advantaged savings account tied to a high-deductible health plan

A Health Savings Account (HSA) is a bank account you own that holds money specifically for medical expenses. 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 and grows like a regular savings account. You contribute pre-tax dollars, the money grows tax-free, and you withdraw it tax-free when you pay for may have access to medical costs.

To open an HSA, you must be enrolled in a high-deductible health plan (HDHP)—a type of health insurance with lower monthly premiums but a higher deductible. 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 taxes. The account itself is separate from your insurance; your employer may offer one through payroll, or you can open one independently at a bank or financial institution.

The money in your HSA is yours to keep. If you change jobs, switch insurance, or retire, the account stays with you. You can invest the balance in stocks, bonds, or mutual funds at many HSA providers, which means the account can grow beyond what you contribute.

Key Takeaways

  • You can only open an HSA if you're enrolled in a high-deductible health plan; the account is separate from your insurance but tied to that coverage type.
  • 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.
  • Unlike an FSA, HSA money rolls over year to year and belongs to you permanently, even if you change jobs or insurance.
  • You can withdraw money for any reason, but non-medical withdrawals before age 65 are taxed as income plus a 20 percent penalty.
  • may have access to expenses include insurance premiums (only in specific situations), deductibles, copays, prescriptions, dental work, vision care, and many over-the-counter items.

How contributions and tax deductions work

You contribute money to your HSA either through payroll deduction (if your employer offers one) or by depositing funds directly into an account you open yourself. Contributions made through payroll are deducted before income tax is calculated, which lowers your taxable income for the year. If you contribute after receiving your paycheck, you can deduct the amount on your tax return when you file.

The IRS sets annual contribution limits, which vary by whether you have individual or family coverage. For 2024, the limit is $4,150 for individual coverage and $8,300 for family coverage; these limits change yearly. If you're 55 or older, you can contribute an additional $1,000 per year as a catch-up contribution. You can contribute only during the months you're enrolled in an HDHP; if you drop the coverage mid-year, your contribution limit for that year is reduced proportionally.

Your employer may also contribute to your HSA as part of your benefits package. Employer contributions count toward your annual limit but do not count as taxable income to you. Some employers contribute a fixed amount; others match a percentage of what you contribute.

What happens when you spend HSA money on medical costs

When you incur a may have access to medical expense, you can withdraw money from your HSA to pay for it. You do not need to submit receipts to your HSA provider or get pre-approval; you simply withdraw the funds and pay the provider. Keep your receipts and documentation in case the IRS audits your account, but the withdrawal itself is straightforward.

may have access to expenses include your health insurance deductible, copays, coinsurance, prescription medications, dental work, vision care (including glasses and contacts), hearing aids, mental health treatment, physical therapy, and many over-the-counter items like pain relievers, allergy medicine, and first-aid supplies. You can also use HSA funds to pay long-term care insurance premiums and certain Medicare premiums (Part B, Part D, and supplemental coverage) once you turn 65.

One exception: you cannot use HSA money to pay your health insurance premiums while you're actively working, except in rare cases like COBRA continuation coverage or premiums during unemployment. Once you enroll in Medicare, you can use HSA funds for Medicare premiums without penalty.

If you withdraw money for a non-may have access to expense before age 65, you owe income tax on that amount plus a 20 percent penalty. After age 65, you can withdraw money for any reason without the penalty, though non-medical withdrawals are still taxed as ordinary income.

How to track and document your spending

Your HSA provider sends you statements showing deposits, withdrawals, and your balance, similar to a regular bank statement. Many providers offer a debit card linked to your HSA, which you can use at pharmacies, doctors' offices, and hospitals. When you use the card, the provider may ask you to confirm the expense is may have access to; if you don't respond, the transaction may be flagged for review.

Keep receipts and invoices for all HSA withdrawals, even if you use the debit card. The IRS does not require you to submit them with your tax return, but you must be able to produce them if audited. Some providers offer mobile apps or online portals where you can photograph and store receipts digitally. If you withdraw money and later cannot document that it was for a may have access to expense, the IRS can reclassify it as a non-may have access to withdrawal and assess taxes and penalties retroactively.

If you pay for a medical expense out of pocket and want to reimburse yourself from your HSA later, you can do so at any time—even years later. You do not need to reimburse yourself in the same year you incurred the expense. This flexibility allows you to let your HSA grow and use it as a long-term medical savings vehicle.

Investment options and growth potential

Many HSA providers allow you to invest your balance in mutual funds, index funds, stocks, or bonds, similar to a brokerage account. This means your HSA can grow beyond your annual contributions. Some providers require a minimum balance (often $1,000 to $2,500) before you can invest; below that threshold, your money sits in a cash account earning little or no interest.

Because HSA withdrawals for may have access to medical expenses are tax-free, investment gains are never taxed as long as you use the money for medical costs. This makes an HSA a powerful long-term savings tool. Many people use it as a retirement account specifically for medical expenses, contributing the maximum each year and investing the balance rather than spending it immediately.

If you invest your HSA and the market declines, your balance may drop. You are responsible for any losses. Conversely, if your investments gain value, those gains are tax-free when withdrawn for may have access to expenses. Some people keep a portion in cash for immediate medical needs and invest the rest for long-term growth.

What happens to your HSA if you change jobs or insurance

Your HSA belongs to you, not your employer. If you leave your job, the account remains yours and you keep all the money in it. You can continue to use it for may have access to medical expenses for the rest of your life. If your new employer offers an HSA, you can keep your old account open or roll it into the new one; you do not have to consolidate.

If you switch to a non-HDHP insurance plan (such as a traditional PPO or HMO), you can no longer make new contributions to your HSA. However, you can still withdraw money from the existing balance for may have access to medical expenses. Once you re-enroll in an HDHP, you can resume contributions.

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 expenses, including Medicare premiums. At age 65, the 20 percent penalty on non-medical withdrawals goes away, though income tax still applies.

HSA vs. FSA: key differences

An FSA is also a tax-advantaged account for medical expenses, but it works differently. FSA money does not roll over; you must spend it by December 31 or lose it (with a limited carryover option in some plans). An FSA is tied to your employer and ends when you leave the job. You cannot invest FSA money, and the account has no long-term value.

An HSA, by contrast, rolls over indefinitely, belongs to you permanently, can be invested, and grows over time. The trade-off is that an HSA requires enrollment in a high-deductible plan, which means higher out-of-pocket costs if you use medical services frequently. An FSA has no insurance requirement and may be a better choice if you have predictable, high medical expenses each year.

Some employers offer both an HSA and an FSA. If you have an HDHP, you can contribute to an HSA. You can also enroll in a limited-purpose FSA, which covers only dental and vision expenses, without affecting your HSA.

Frequently Asked Questions

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

Yes. HSA funds can be used for may have access to medical expenses of you, your spouse, and any dependent you claim on your taxes, regardless of whether they are covered by your health plan. You do not need to be on the same insurance policy.

What happens to my HSA when I die?

If you name a spouse as beneficiary, they can continue to use the HSA as their own account for may have access to medical expenses. If a non-spouse inherits the HSA, they must pay income tax on the full balance, though they can use it tax-free for your final medical expenses and funeral costs.

Can I use HSA money for gym memberships or wellness programs?

Not typically. General fitness expenses are not may have access to. However, if your doctor prescribes exercise as treatment for a specific condition (such as cardiac rehabilitation), that cost may be covered. Weight-loss programs are may have access to only if prescribed by a doctor to treat an existing medical condition.

Do I have to use my HSA every year or lose the money?

No. Unlike an FSA, HSA money rolls over year to year indefinitely. You can let it accumulate and use it whenever you need it, even decades later. There is no "use it or lose it" deadline.

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 amount plus a 20 percent penalty if you're under 65. The IRS may assess these retroactively if you're audited. Keep documentation for all withdrawals to avoid this situation.