How to open an HSA account

To open an HSA account, you need to be enrolled in a high-deductible health plan (HDHP) through your employer, the individual market, or Medicare Advantage. Once you have that coverage, you can open an account through your employer's plan (if they offer one), a bank, a brokerage firm, or an insurance company. The process usually takes a few days to a week, and you'll need your Social Security number, proof of HDHP coverage, and a way to fund the account — either through payroll deduction, a bank transfer, or a check.

The account itself is separate from your health insurance. Your HDHP is what makes you may be able to access to have an HSA, but the HSA is a savings account you control. You can have only one HSA at a time, and if you're married and both have HDHPs, you can each have your own account or share a family HSA.

Key Takeaways

  • You must be enrolled in an HDHP to open an HSA; without that coverage, you cannot open one.
  • Your employer may offer HSA accounts directly, but you can also open one through a bank, brokerage, or insurance company if you prefer.
  • You'll need your Social Security number and proof of HDHP coverage to complete the account setup.
  • Contributions made through payroll deduction are withheld before taxes, which is usually the fastest and most tax-efficient way to fund an account.
  • You can only have one HSA at a time; if you have multiple accounts, the IRS will count total contributions toward the annual limit.

Check your health plan to see if you're may be able to access

Before you open an HSA, confirm that your health insurance is actually an HDHP. Your insurance company or employer will tell you this directly — it's not something you have to guess at. For 2024, an HDHP has a minimum deductible of $1,600 for individual coverage or $3,200 for family coverage, and an out-of-pocket maximum of $4,150 for individual or $8,300 for family. These numbers change each year.

If you're on Medicare, you cannot have an HSA. If you're claimed as a dependent on someone else's tax return, you cannot have an HSA. If you have other health coverage besides your HDHP — such as a spouse's plan or a separate dental plan — you may still be able to open an HSA, but the rules are strict. Call your health plan's customer service line and ask directly: "Is this plan HSA-may be able to access?" They will give you a yes or no.

Decide where to open your account

Your employer may offer an HSA through a specific provider — often a bank or a third-party administrator. If they do, that's usually the simplest route because payroll deduction is already set up. But you're not required to use your employer's provider. You can open an HSA at any bank, credit union, brokerage firm, or insurance company that offers them.

The main difference between providers is fees, investment options, and customer service. Some charge monthly maintenance fees ($2 to $5 per month is common), some charge per transaction, and some charge nothing. If you plan to invest your HSA balance rather than just use it for near-term medical costs, you'll want a provider that offers low-cost investment options. If you just want to pay for current medical expenses, a simple savings account at a bank or credit union may be all you need.

You can search for HSA providers online, or ask your employer's benefits department for a list of options. If you're self-employed or buying coverage on the individual market, you'll need to find a provider on your own — your insurance company may have a list, or you can contact banks and brokerages directly.

Gather the documents you'll need

Have these items ready before you start the account-opening process:

  • Your Social Security number
  • Proof that you're enrolled in an HDHP — this can be your insurance card, a letter from your employer, or a screenshot of your plan details from your insurance company's website
  • Your employer's name and address (if you're opening through payroll deduction)
  • A bank account number and routing number if you plan to fund the account by transfer
  • Your mailing address and phone number

If you're opening an account through your employer, your benefits department may have already verified your HDHP coverage, so you may not need to provide proof. But if you're opening an account independently, the provider will ask you to confirm your coverage — usually by uploading a photo of your insurance card or a plan document.

Complete the account application

The application process differs slightly depending on where you open your account, but the basic steps are the same. You'll fill out a form (online, by mail, or in person) with your personal information, Social Security number, and HDHP details. The provider will verify that you're may be able to access to have an HSA — they do this by checking your coverage information against IRS rules.

If you're opening an account through your employer, the application may be part of your benefits enrollment process. If you're opening one independently, you can usually complete the application online in 10 to 15 minutes. The provider will then send you account details — your account number, routing number, and instructions for funding the account.

Some providers require you to sign documents in person or by mail, which can add a few days to the process. Ask the provider upfront whether you can complete everything online or if you'll need to mail anything back.

Fund your account

Once your account is open, you can start putting money in. If you're funding through payroll deduction, your employer will withhold the amount you choose from each paycheck and send it to your HSA provider. This is the most common method because the money is deducted before taxes, which lowers your taxable income.

You can also fund your account by transferring money from your bank account, mailing a check, or making a direct contribution. If you contribute money yourself (rather than through payroll), you'll need to report it on your tax return to get the tax deduction. The annual contribution limit for 2024 is $4,150 for individual coverage or $8,300 for family coverage; these limits change each year.

If you're self-employed, you can only contribute to an HSA if you have an HDHP. You'll report your contributions on your tax return (Form 8889) when you file.

Start using your account

Once your account is funded, you can use the money to pay for may have access to medical expenses — doctor visits, prescriptions, dental work, vision care, and many other health-related costs. Your HSA provider will give you a debit card, checks, or online transfer options to access the money. Keep receipts for all medical expenses you pay from your HSA, because the IRS can ask you to prove that withdrawals were for may have access to expenses.

Money you don't spend in a given year rolls over to the next year — there's no "use it or lose it" rule like there is with flexible spending accounts. This means your HSA can grow over time if you don't need to withdraw it all.

Frequently Asked Questions

Can I open an HSA if my employer doesn't offer one?

Yes. You can open an HSA at any bank, credit union, brokerage, or insurance company that offers them. You'll need to provide proof of your HDHP coverage, which you can get from your insurance company or your employer's benefits department. The process is the same as opening any other savings account.

What happens if I open an HSA but then switch to a non-HDHP plan?

You can keep the account and the money in it, but you cannot make new contributions once you're no longer on an HDHP. You can still withdraw money for may have access to medical expenses. If you switch back to an HDHP later, you can resume contributions.

Do I need to open an HSA in the same year I enroll in an HDHP?

No. You can open an HSA at any time while you're covered by an HDHP. However, if you want to make contributions for the current year, you must open the account by December 31 of that year. Contributions made in January through April of the following year can be designated for the prior year if you opened the account by the deadline.

Can I have more than one HSA?

No. The IRS allows only one HSA per person at a time. If you accidentally open multiple accounts, you must close all but one and report the total contributions to avoid penalties. If you're married, you and your spouse can each have your own HSA, or you can share one family HSA.

How long does it take to open an HSA?

Most online applications are approved within a few days. If you're opening through your employer's payroll system, it may take until the next pay cycle for contributions to start. If the provider requires mailed documents, add a week or two for processing.