Health savings account (HSA) basics

If you’ve recently signed up for a high-deductible health plan, or HDHP, you also qualify for a health savings account (HSA). And just like there are certain things that make an HDHP different from other health plans, an HSA has special features that make it a unique kind of bank account to help pay for what health insurance covers.

Let’s go over the details of what an HSA is and what to do if you need to open one up. We’ll also go over how you can contribute to your HSA, what you can spend your HSA funds on and how the money you’ve saved can follow you year after year – even to your next job and into retirement.

A health savings account is a type of bank account used specifically for medical costs – doctor visits, prescriptions, eyeglasses, and similar products and services. For an HSA you have through work, you choose how much money from your paycheck goes into this account each pay period before taxes are taken out. You can also deposit additional money to an HSA outside of work contributions.

This pretax money stays in your account until you need to use it for eligible out-of-pocket medical expenses. Your HSA money is yours to keep, rolling over from year to year and traveling with you if you leave your job.

High-deductible health plans (HDHPs) and HSAs

You can only have an HSA if you’re enrolled in a high-deductible health plan (HDHP) – a health insurance plan that features a lower monthly premium with the trade-off of a higher deductible. Usually, these plans will have “HDHP,” “high-deductible health plan” or “HSA” in their name.

HDHP requirements change every year. For 2025, these plans must:

Have annual deductibles of at least $1,650 for single coverage and $3,300 for family coverage
Have an annual out-of-pocket maximum of no more than $8,300 for single coverage and $16,600 for family coverage

Can I open an HSA without an HDHP?

If your plan doesn’t meet HDHP requirements, then you won’t be able to open or contribute to an HSA. You also won’t be eligible to open an HSA if you’re enrolled in Medicare or have any other health care coverage. If you have questions about whether you’re eligible for an HSA, your employer or health insurance company will have answers.

Health savings accounts have three close relatives called FSAs, HRAs and LSAs:

Like an HSA, a flexible spending account (FSA) holds pretax money for health care expenses. Unlike an HSA, you can pair different kinds of employer-offered FSAs with any employer-sponsored health plan, not just a high-deductible health plan. Also unlike an HSA, the money in an FSA typically needs to be spent before the end of the year. If you hear “use it or lose it” when it comes to FSAs, that’s the reason why. Some employers may allow a limited rollover of FSA funds each year, but it’s limited by IRS regulations – unlike HSA funds which can carry over each year in full.
A health reimbursement arrangement (HRA) is also different from an HSA. Like HSAs, HRAs contain pretax money to pay for health care costs. But with an HRA, the funds come entirely from your employer – you don’t deposit any money yourself. Your employer decides how much money goes into the account, what expenses are eligible and how much money can carry over from year to year.
Finally, a lifestyle savings account (LSA) contains money set aside by your employer for improving your physical, mental and financial well-being. While other accounts help cover health care expenses, an LSA complements your insurance coverage by offering funds for things that contribute to your well-being but aren’t health care. LSAs are funded entirely by your employer, and they decide what expenses are eligible.

Think of an HSA as a checking account that’s especially for health care expenses. If you qualify, it’s easy to open one up and use your HSA funds, either through a special debit card or by submitting receipts for reimbursement.

Your HSA can serve as an excellent way to track and manage your health care costs, giving you a clear look into where your health care dollars go over time and where you can make adjustments to get the most from your money.

How to open an HSA

How you start an HSA can vary depending on whether you’re enrolling in a high-deductible health plan through work or on your own:

If you’re enrolling in an HDHP through work, your employer may start an HSA for you or refer you to a financial institution that can. If your employer starts an HSA for you, you’ll enjoy a pretty seamless experience since your HSA’s bank or credit union will integrate with your payroll system, making pretax deductions from your paycheck automatic.
If you’re enrolling in an HDHP on your own, your new insurer might also be able to start an HSA for you. If they can’t, or you want to open your account somewhere else, you can start your HSA at any bank or credit union that offers one. Keep in mind that HSA features may differ from place to place – always ask for a list of benefits and fees your HSA may have so you get a full sense of what to expect.

Adding money to your HSA

As part of setting up an HSA through your employer, you’ll be asked how much money you’ll want to set aside for your HSA. Each pay period, this amount will be sent directly to your HSA before taxes are taken out of your paycheck. Your employer might also contribute money to your HSA or match your contributions.

You can also deposit your own after-tax money to your HSA, either all at once or through regular automatic deposits. Even better, these deposits are deductible when you file your taxes every year.

However, whether you contribute via payroll deductions or deposits you make yourself, there are limits to the amount of money that can be put into an HSA each year.

HSAs have limits on how much money you can contribute

The IRS has annual limits for how much can be contributed to HSAs. These limits can change each year.

In 2025, HSA contribution limits are:

$4,300 for individual coverage
$8,550 for family coverage

If you’re 55 or older, you can also make an extra $1,000 “catch up” contribution each year.

These limits include money from all sources – like you and your employer – and across all your HSAs (if you happen to have multiple accounts). For more details, check out irs.gov.

How much should I contribute to my HSA?

It depends on how much you spend on health care each year and how you see your needs changing in the future. Before you decide, take some time to look back at how much you’ve spent on medical expenses in past years – this can help you get an estimate of what you’ll spend in the coming year. Try to figure in any money you’ve spent on dental and vision care since you can use money from your HSA for these, too.

It can also help to look forward. For example, if you know you’re expecting a baby or planning for a major surgery, events like these (and how much they’ll cost) can also factor in to what you might want to save in your HSA.

Remember, HSA funds don’t expire – they stay with you until you spend them. You can set aside as much as your budget allows (as long as you stay under the IRS limits).

Is an HSA pretax?

Definitely – in fact, the tax savings are triple!

First, you’re not taxed on money that goes into your HSA.
Second, HSA interest and investment earnings are tax free.
And third, when you spend your HSA on eligible expenses, you’re not charged tax.

It all means lower taxable income, tax-free earnings and tax-free health care spending. You can even save your HSA funds all the way to retirement – and pay for health care expenses later in life.

Once money accumulates in your health savings account, you can use it for eligible health care expenses.

What can I use my HSA for?

In general, you can use your HSA for a wide variety of health care expenses, like doctor visits, lab fees, prescription medicines, home medical equipment and more. You can also use HSA funds for dental and vision care. Dentist office visits and braces are eligible too, as well as eye exams and LASIK surgery.

In fact, we have a list of qualifying medical expenses (PDF) that will give you a good idea of what you can (and can’t) use your HSA funds for.

If you’re a HealthPartners member with an HSA through Fidelity or Optum, you can get more details about eligible expenses by signing in to your online account. Members also have access to Health Shopper, an easy way to look up eligible expenses, as well as a place to find and purchase eligible HSA products.

Spending your HSA funds – debit cards and reimbursement

There are two main ways you can access the money in your HSA account: debit card and reimbursement.

HSA debit card

Your HSA may come with a special debit card. This is the easiest way to use your HSA – just present the debit card at your provider’s office when paying for services, or use it to pay for eligible items at a store or online. The card takes the money directly from the account. Just save the receipt in case you’re asked to verify that the transaction was for eligible items or services.

HSA debit cards also provide another money-saving convenience: Most will only work at HSA-eligible retailers, declining transactions elsewhere. That makes an excellent safeguard against accidentally buying ineligible items and services – a mistake that can carry a sizable IRS penalty of 20%.

Getting reimbursed from your HSA

Another way you can access your HSA funds is through reimbursement, which takes a few extra steps but can act as a good backup in case you forget, can’t use or don’t have an HSA debit card.

Just pay for your HSA eligible expenses as you normally would and save the receipt. Then, submit your receipt along with the necessary details to your HSA’s bank – some will let you submit photos of your receipts through their website or mobile app.

Reimbursement funds are sent directly to your bank account if you’ve signed up for direct deposit, or by check. Some HSAs may charge fees for check reimbursements.

Keeping track of your HSA

Most banks give you access to your HSA through either an online account or mobile app. This way, you can keep track of deposits and withdrawals in real time while also seeing where your money is going. HealthPartners members with HSAs through Fidelity or Optum can see details by signing in to their online account or using the myHP mobile app for Android and iOS.

In any case, your HSA administrator will also send you IRS Form 5498-SA every spring, which is a summary of your HSA activity for the previous year. When you receive it, double check to make sure all the information is accurate and save it for your records.

Your HSA is always yours

As time goes on, one of the best parts about having an HSA is that the money you deposit remains yours until you use it:

HSA funds roll over year to year (they don’t expire)

There’s no limit to the amount of funds you can roll over from year to year. Plus, unlike a flexible spending account (FSA), there’s no “use it or lose it” rule.

Bring your HSA with you

Leaving your current job? Your HSA travels with you, along with all your funds. If your next employer has an HDHP, you can open a new HSA and transfer your funds over without penalty. But if you don’t end up covered by an HDHP after you leave your current job, you can still use your HSA funds for eligible expenses – you just can’t contribute more money to your account.

Earning interest with your HSA

HSAs can earn interest just like other interest-bearing bank accounts. Plus, the interest you earn is tax free. If you can’t find your account’s interest rate, your HSA administrator can give you the details.

Investing your HSA funds

Once you’re over a minimum account balance, some HSAs will allow you to transfer part of your funds into a separate account to invest. If offered, your HSA administrator will have more details about HSA investment options.

HSA funds after age 65

When you celebrate your 65th birthday, your HSA becomes even more flexible. After age 65, the 20% IRS penalty no longer applies to using HSA funds for non-medical expenses (you’ll still pay regular tax on these withdrawals). In effect, this turns your HSA into a traditional IRA – which is why some people use their HSAs as an additional way to save for retirement.