Opening an HSA requires three things: a high-deductible health plan, a bank or financial institution that offers HSA accounts, and proof of your coverage

You cannot open an HSA on its own. It must be tied to a high-deductible health plan (HDHP) — either through your employer or purchased on your own. Once you have that coverage in place, you choose a bank, credit union, or investment firm to hold the account, complete their application, and provide proof of your HDHP enrollment. The whole process typically takes a few days to a week.

The account itself is straightforward: it works like a savings account with a debit card attached. You fund it with pre-tax money (either through payroll deduction if your employer offers it, or by depositing money yourself and deducting it on your tax return). You then use that money to pay for medical expenses — doctor visits, prescriptions, dental work, vision care — without paying income tax on those withdrawals.

Key Takeaways

  • You must be enrolled in an HDHP before opening an HSA; the account cannot exist without that coverage.
  • You choose the financial institution that holds your HSA, and different banks and investment firms offer different fee structures and investment options.
  • If your employer offers an HSA, payroll deduction is the easiest funding method and reduces your taxable income automatically.
  • You will need your HDHP plan documents or enrollment confirmation when you apply, so have those ready before you start.
  • Money in an HSA rolls over year to year and can be invested, making it different from a flexible spending account (FSA), which you lose if you do not spend it.

Verify you have an HDHP before you apply

An HSA is only available to people covered by an HDHP. If you get health insurance through your employer, check your plan documents or ask your HR department whether your plan qualifies. The IRS sets the minimum deductible each year — for 2024, an HDHP must have a deductible of at least $1,600 for individual coverage or $3,200 for family coverage. Your employer's benefits summary should state this clearly.

If you buy insurance on your own through the healthcare marketplace or directly from an insurer, look for plans labeled as "high-deductible" or check the plan details for the deductible amount. Not all marketplace plans are HDHPs, so you need to confirm before moving forward. Once you know you have an HDHP, you are ready to choose a financial institution.

Choose a bank, credit union, or investment firm to hold your account

Many banks and credit unions offer HSAs, as do investment firms like Fidelity, Vanguard, and Charles Schwab. There is no single "official" HSA provider — you choose based on fees, investment options, and convenience. Some institutions charge monthly maintenance fees (typically $2 to $5), while others waive fees if you maintain a minimum balance. Some offer only savings accounts; others let you invest your HSA balance in mutual funds or stocks once it reaches a certain amount.

If your employer offers an HSA through payroll, they usually partner with one provider and handle enrollment for you. In that case, you do not choose — you use the employer's provider. If you are buying your own HDHP or your employer does not offer an HSA, you can open an account with any provider that accepts your state of residence. Search online for "HSA providers" and compare fees and features before deciding.

Gather your HDHP enrollment information

When you apply, the financial institution will ask for proof that you are covered by an HDHP. Have one of these documents ready: your insurance card, your plan summary or benefits document, or your enrollment confirmation from your employer or the healthcare marketplace. You will also need your Social Security number, date of birth, and current address.

If you enrolled in an HDHP through the healthcare marketplace, you can log into your account at Healthcare.gov and download your enrollment confirmation. If your employer provides the plan, your HR department can email you a benefits summary or plan document. Having this information before you start the application saves time and prevents delays.

Complete the application with your chosen provider

Most HSA providers let you apply online. You will enter your personal information, Social Security number, and proof of HDHP coverage. Some providers ask you to upload a photo of your insurance card or plan document; others accept a screenshot or PDF. The application usually takes 10 to 15 minutes.

After you submit, the provider reviews your information — typically within one to three business days — and either approves your account or asks for clarification. Once approved, you receive account details: your account number, routing number (if you want to set up direct deposit), and login credentials for online access. Some providers mail a debit card; others issue it digitally.

Fund your account through payroll or direct deposit

If your employer offers an HSA, the easiest method is payroll deduction. You tell your HR or benefits department how much to deduct from each paycheck and direct it to your HSA. This money comes out before taxes are calculated, so it reduces your taxable income automatically. You do not have to do anything else — the money flows in with each paycheck.

If you opened an HSA on your own, you can deposit money by transferring it from your bank account, setting up direct deposit from your employer (if your employer allows it), or mailing a check. You can also contribute a lump sum at tax time. Whatever you contribute, you can deduct it on your tax return (Form 8889) when you file, as long as you were covered by an HDHP for the entire month you made the contribution.

Start using your account for medical expenses

Once your account is open and funded, you can use the debit card or request a reimbursement for medical expenses you have already paid. Medical expenses include doctor visits, prescriptions, dental work, vision care, mental health treatment, and many over-the-counter items like pain relievers and bandages. You can also use HSA funds to pay insurance premiums in certain situations — for example, if you are on COBRA or receiving unemployment benefits.

Keep receipts for all medical expenses you pay with HSA funds. The IRS does not require you to submit them when you withdraw money, but you must be able to prove the expense was medical if you are ever audited. Some providers offer a mobile app where you can photograph and store receipts automatically.

Understand the rules for investing and carrying over your balance

Unlike a flexible spending account (FSA), money in an HSA does not disappear at the end of the year. Your balance rolls over indefinitely, and you can invest it in mutual funds or stocks if your provider offers that option. This makes an HSA a long-term savings tool — some people use it as a retirement account by letting the balance grow and only withdrawing for medical expenses in later years.

If you withdraw money for non-medical expenses before age 65, you pay income tax on that amount plus a 20 percent penalty. After age 65, you can withdraw money for any reason without the penalty, though you still pay income tax on non-medical withdrawals. This flexibility is one reason HSAs are valuable: they function as both a medical savings account and a retirement savings tool.

Frequently Asked Questions

Can I open an HSA if I am on Medicare?

No. Once you enroll in Medicare, you are no longer may be able to access to contribute to an HSA. If you already have an HSA, you can keep it and withdraw money for medical expenses, but you cannot add new money to it. Plan ahead if you are approaching Medicare age and want to maximize your HSA contributions.

What if my employer changes health plans mid-year?

If your new plan is also an HDHP, your HSA continues without interruption. If your new plan is not an HDHP, you can no longer contribute to your HSA for the rest of that year, but you keep the money already in the account and can use it for medical expenses indefinitely.

Can I transfer money from an FSA to an HSA?

No, you cannot transfer FSA funds directly to an HSA. However, if you leave a job with an FSA and enroll in an HDHP at a new job, you can open a new HSA. You must use up or forfeit your FSA balance separately — the two accounts do not connect.

Do I need to report my HSA on my tax return?

Yes. You file Form 8889 with your tax return to report contributions, withdrawals, and your year-end balance. If your employer deducted HSA contributions from your paycheck, they report that on your W-2, and you still file Form 8889 to complete the record. This is straightforward if you keep track of your contributions and withdrawals throughout the year.

What happens to my HSA if I change jobs?

Your HSA is yours to keep. It does not belong to your employer, so when you leave, the account stays open and the money remains yours. You can continue using it for medical expenses, and you can keep it invested. If your new employer offers an HSA, you can open a separate account or roll your old one over, depending on what works for your situation.