HSA Benefits: What You Actually Get
An HSA gives you pre-tax contributions, tax-free growth on your balance, a card or reimbursement to spend it, and full portability when you change jobs. Here is what each benefit actually means.
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Short answer
An HSA gives you four benefits: your contributions go in pre-tax, the balance grows tax-free, withdrawals for eligible medical expenses come out tax-free, and the account is yours to keep for life, with no year-end deadline. It's available to anyone enrolled in a qualifying high-deductible health plan (HDHP).
The account is owned by you, not your employer. You control how much goes in (up to the IRS limit), how it's invested once your provider allows it, and when you spend it. After age 65, you can withdraw for any reason. Medical withdrawals stay tax-free. Non-medical withdrawals are taxed as income, with no penalty.
What an HSA is and who can have one
A Health Savings Account (HSA) is a tax-advantaged savings account designed for people enrolled in a high-deductible health plan (HDHP). You contribute pre-tax money to the account, and you can use those funds to pay for qualified medical expenses tax-free. Unlike a Flexible Spending Account (FSA), an HSA is portable. It is your account, owned by you, and it stays with you even if you change jobs or health insurance.
To open an HSA, you must be enrolled in an HDHP. For 2026, the IRS sets the minimum annual deductible at $1,700 for self-only coverage or $3,400 for family coverage. You generally cannot have an HSA if you also have a full FSA, a traditional PPO or HMO plan, or Medicare. Some employers pair an HSA with a limited-purpose FSA that covers dental and vision only, which is allowed.
Once you open an HSA, you own it outright. You decide how the money gets spent, with no employer sign-off required. An FSA works on a different structure, tied to your employer's plan year with its own deadline. HSA and FSA are both tax-advantaged, but the ownership and timing rules are not the same.
How money goes in
You fund an HSA before taxes are taken out. If you contribute through payroll, the amount comes off your paycheck before federal income tax and payroll tax are calculated, which lowers your taxable income for the year. You can also contribute directly and claim the deduction when you file.
How much you can contribute
For 2026, the IRS limit is $4,400 for self-only coverage or $8,750 for family coverage. As IRS Publication 969 puts it, your contribution "depends on the type of HDHP coverage you have, your age," and your eligibility dates. If you are 55 or older, you can add $1,000 more per year. Contributions can come from you, your employer, or both, but the combined total cannot pass the limit.
Employer contributions and catch-up contributions
Your employer may also fund your HSA as part of your benefits package. Employer contributions count toward your annual limit but are not taxable income to you. Starting at age 55, you can add the extra $1,000 catch-up contribution each year, on top of the regular limit.
How money comes out: card, reimbursement, who files
Most HSAs come with a debit card you can swipe directly for an eligible expense, and you can also pay out of pocket and reimburse yourself from the account later. Either way, spending on a qualified medical expense is tax-free. There's no administrator filing a claim on your behalf. You hold the receipts and you decide when to reimburse yourself, on your own account.
What counts as an eligible medical expense
Doctor visits, prescriptions, dental work, vision care, hearing aids, and physical therapy all count as qualified medical expenses. IRS Publication 502 sets the legal test as a cost "for the purpose of affecting any part or function of the body". Some items, like supplements or a gym membership, are reimbursable with a letter of medical necessity that ties them to a diagnosed condition. General wellness purchases without a diagnosed condition stay not reimbursable. Expenses for your spouse and dependents count too, even if they are not on your HDHP.
Reimbursing yourself on your own timeline
You control the timing. Pay for an expense now, keep the receipt, and reimburse yourself from the account whenever you want, even years later, as long as the expense was eligible when you paid for it. Some people let the balance sit and invest instead of reimbursing right away. Whenever you do withdraw for an eligible expense, that withdrawal is tax-free.
Year end and job change
Nothing happens to your balance at year end. As IRS Publication 969 puts it, "amounts that remain at the end of the year are generally carried over to the next year," with no deadline to spend it and no forms to file to keep it. A separate rule applies to a standard FSA: unused funds are forfeited at the end of the plan year, sometimes with a limited carryover or grace period the employer sets.
What happens when you change jobs
The account is yours to keep. When you leave a job, it moves with you. You can keep spending the balance, and if you enroll in another HDHP, you can keep contributing. If you drop off an HDHP for a while, you stop contributing but you can still spend the existing balance on eligible expenses. An FSA works the opposite way: leave the job, and the balance is generally gone.
A long-term savings vehicle
Many people don't spend everything they put in during the same year. They let the balance sit, invest part of it, and hold it for future medical costs, sometimes for decades. After age 65, you can take money out for any reason. Medical withdrawals stay tax-free. Other withdrawals are taxed as ordinary income, with no penalty.
Tax-free growth and investment
Once your balance passes the amount your provider requires to keep in cash, many providers let you invest the rest in mutual funds or similar options. Any growth on those investments is tax-free while it stays in the account. IRS Publication 969 states that "there is no additional tax on distributions made after the date you are disabled, reach age 65, or die," so a non-medical withdrawal after 65 owes ordinary income tax and no penalty.
That tax-free growth compounds the longer the balance stays invested. Some people treat the account as a second retirement fund and pay smaller medical bills out of pocket instead of tapping the balance.
HSA vs. FSA: benefits comparison
An HSA and an FSA are both tax-advantaged accounts for medical expenses, but they have very different benefits.
Benefit | HSA | FSA |
|---|---|---|
Contributions reduce taxable income | Yes | Yes |
Balance at year end | Carries over with no deadline | Forfeited, with limited carryover or grace period |
When you change jobs | Account and balance move with you | Balance is generally forfeited, per IRS Publication 969 |
Investment growth available | Yes, tax-free | No |
Withdrawals after 65 for any reason | Allowed, income tax on non-medical | Not applicable |
When you can enroll | Anytime you're HDHP-eligible | Employer's open enrollment window |
Employer can contribute | Yes | Yes |
Where Burst fits
Some purchases are only reimbursable with a letter of medical necessity: gym memberships, massage, fitness equipment, sleep and recovery products, and similar. Burst writes the letter and files the claim for $35, refunded if no letter is issued or the claim is denied. See how a letter works.
Frequently asked questions
What are the main benefits of an HSA?
Contributions go in pre-tax, growth on the balance is tax-free, and withdrawals for eligible expenses come out tax-free. You own the account for life and there's no deadline to spend what's in it.
Does my HSA balance carry over every year?
Yes. Whatever you don't spend stays in the account and carries forward automatically, with no deadline. A standard FSA works differently: unused funds are forfeited at the end of the plan year, sometimes with a small carryover or grace period.
Can I take my HSA with me if I change jobs?
Yes. It's your account. When you leave a job, the balance goes with you, and you can keep spending it. If you enroll in another HDHP, you can keep contributing too.
Can I invest my HSA balance?
In most cases, yes, once the balance passes the amount your provider requires to hold in cash. Providers typically offer mutual funds or similar options, and any growth is tax-free while it stays in the account.
What is the HSA contribution limit for 2026?
For 2026, the IRS limit is $4,400 for self-only coverage and $8,750 for family coverage, per IRS Publication 969. Adding the age-55 catch-up puts an extra $1,000 on top of either limit.
Can I use my HSA for someone else's medical expenses?
Yes. You can pay for eligible medical expenses for your spouse and dependents from your HSA, even if they aren't on your HDHP.
Can I withdraw from my HSA after age 65?
Yes, for any reason. Withdrawals for eligible medical expenses stay tax-free. Withdrawals for anything else are taxed as ordinary income, with no penalty.
How is an HSA different from an FSA?
An HSA is yours to keep: the balance carries forward every year and moves with you between jobs, and you can invest it. A standard FSA is tied to your employer's plan year, with funds generally forfeited if unspent or if you leave the job. HSAs also require an HDHP. FSAs don't.
Keep reading: HSA Contribution Limits, HSA vs. FSA: Key Differences, HDHP and HSA: How They Work Together, How Much to Contribute to an HSA, and all guides on this topic.
Sources
IRS Publication 969, Health Savings Accounts and Other Tax-Favored Health Plans (HDHP minimum deductibles, contribution limit rule, year-end carryover, and the age-65 withdrawal tax treatment)
IRS Publication 502, Medical and Dental Expenses (the definition of a qualified medical expense)
HealthCare.gov Glossary (HSA and HDHP definitions and general eligibility requirements)
