What HSA Stands For and How It Works

HSA stands for Health Savings Account

An HSA is a tax-advantaged savings account you can open if you have a high-deductible health insurance plan. The money you put in reduces your taxable income, the money grows tax-free, and you can withdraw it tax-free to pay for may have access to medical expenses. 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 owned by you, not your employer, so it stays with you if you change jobs. You control how much to contribute each year (within IRS limits), what to invest it in, and when to withdraw it. After age 65, you can withdraw money for any reason without penalty, though non-medical withdrawals are taxed as income.

Key Takeaways

HSA stands for Health Savings Account and requires enrollment in a high-deductible health plan (HDHP) to open one.
Contributions reduce your taxable income, growth is tax-free, and withdrawals for medical expenses are tax-free — a triple tax advantage.
Unlike FSAs, HSA money rolls over indefinitely and belongs to you permanently, even if you leave your job.
You can use HSA funds for a wide range of medical expenses including deductibles, copays, prescriptions, dental work, and vision care.
After age 65, you can withdraw money for any reason without the 20% penalty, though non-medical withdrawals are taxed as regular income.

The three tax advantages of an HSA

An HSA gives you a tax break at three different points. First, contributions you make reduce your gross income for federal tax purposes — if you earn $50,000 and contribute $3,000 to an HSA, you pay taxes on $47,000 instead. If your employer contributes on your behalf, that money is not counted as taxable wages either.

Second, any interest or investment gains inside the account are not taxed. If you invest your HSA balance in a mutual fund and it grows, you owe no tax on that growth. Third, when you withdraw money to pay for a may have access to medical expense, that withdrawal is tax-free. No other account offers all three.

Who can open an HSA and what the requirements are

You must be enrolled in a high-deductible health plan (HDHP) to open an HSA. The IRS sets the minimum deductible each year — for 2024, it is $1,600 for individual coverage and $3,200 for family coverage. Your plan cannot have other coverage (like a spouse's plan with a low deductible) unless that other plan is also an HDHP or a limited-purpose plan like dental-only coverage.

You cannot be claimed as a dependent on someone else's tax return, and you cannot be enrolled in Medicare. If you lose HDHP coverage mid-year, you can still contribute to your HSA for that year, but you cannot make new contributions once you switch to a non-HDHP plan. Many employers offer HSAs through payroll, but you can also open one independently through a bank or financial institution.

How much you can contribute each year

The IRS sets annual contribution limits that change year to year. For 2024, you can contribute up to $4,150 for individual coverage or $8,300 for family coverage. If you are 55 or older, you can add an extra $1,000 per year (called a catch-up contribution). These limits apply to the total of all contributions — yours plus your employer's — so if your employer contributes $1,000, you can only add $3,150 more.

You can contribute through payroll deduction (which avoids self-employment tax), or you can make deposits directly to the account. Contributions for a given year can be made until the tax filing deadline the following year, usually April 15. If you contribute more than the limit, you owe taxes and a 6% penalty on the excess amount.

What expenses you can pay for with HSA money

HSA funds cover a broad range of medical, dental, and vision expenses. may have access to expenses include deductibles, copays, coinsurance, prescription medications, dental work (fillings, crowns, orthodontics), vision care (glasses, contacts, exams), hearing aids, and mental health treatment. You can also use HSA money for over-the-counter medications like pain relievers and allergy medicine, as long as you have a prescription or a doctor's note.

Some expenses people assume are covered are not: cosmetic procedures (unless medically necessary), gym memberships, and vitamins or supplements without a medical condition diagnosis are not covered. Long-term care insurance premiums are covered up to a limit set by the IRS. If you are unsure whether an expense qualifies, the IRS publishes a full list, and your HSA provider can also advise you.

How HSA money rolls over and what happens to it

Unlike an FSA, which has a "use it or lose it" rule, HSA money rolls over indefinitely. If you contribute $3,000 and spend only $1,500, the remaining $1,500 stays in your account and grows tax-free. There is no annual deadline to spend the money, and there is no penalty for letting it accumulate.

If you change jobs, your HSA goes with you — it is your account, not your employer's. If you lose HDHP coverage, you cannot make new contributions, but you can still withdraw money for medical expenses. If you die, your beneficiary inherits the account; if there is no beneficiary, the balance goes to your estate and is subject to income tax.

HSA versus FSA: the key differences

Both accounts let you set aside pre-tax money for medical expenses, but they work differently. An FSA has a "use it or lose it" rule — money not spent by the end of the year is forfeited (though some plans allow a small carryover or grace period). An HSA has no spending deadline and money rolls over forever.

An FSA is tied to your job and ends when you leave. An HSA is yours permanently and moves with you. An FSA is funded only through payroll deduction; an HSA can be funded through payroll or direct deposit. An FSA does not earn investment income; an HSA can be invested in mutual funds or other securities. You can have an FSA and an HSA at the same time only if the FSA is limited-purpose (dental and vision only).

Frequently Asked Questions

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

You cannot use HSA funds to pay for regular health insurance premiums, but you can use them to pay for COBRA premiums (continuation coverage after job loss), Medicare premiums (Part B, Part D, and supplemental), and long-term care insurance premiums up to an IRS limit. Employer-sponsored premiums cannot be paid from an HSA.

What happens to my HSA if I switch to a non-HDHP plan?

Your HSA stays open and the money remains yours. You cannot make new contributions once you lose HDHP coverage, but you can withdraw money for may have access to medical expenses at any time. If you return to an HDHP later, you can resume contributions.

Can I withdraw HSA money for non-medical expenses?

Yes, but after age 65 only. Before 65, non-medical withdrawals are taxed as income plus a 20% penalty. After 65, you can withdraw for any reason and owe only income tax (no penalty), though the withdrawal is still taxable income.

Do I need receipts to withdraw HSA money?

You should keep receipts and documentation for all HSA withdrawals in case of an IRS audit. The IRS can ask you to prove that withdrawals were for may have access to expenses. Keeping records protects you if your account is ever reviewed.

Can my employer contribute to my HSA?

Yes. Employer contributions count toward the annual limit but are not taxed as wages. If your employer contributes $2,000 and you want to contribute $3,000, you can only add $1,150 more (for individual coverage in 2024) to stay within the $4,150 limit.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.