You can open an HSA through your employer's plan, a bank, or an insurance company that sells HSA-compatible high-deductible health plans

The place you open your HSA depends on whether you already have a high-deductible health plan (HDHP). If your employer offers one, you can usually open an HSA through the same company that administers your health benefits — often a major insurer like Aetna, Blue Cross, or UnitedHealthcare. If you buy your own HDHP on the individual market, you open the HSA separately, either through the insurance company itself or through a bank or financial institution that offers HSA accounts.

The account itself and the health plan are two different things. You need the HDHP first to be HSA-may be able to access, but the account can live at a different institution than your insurance. Many people keep their HSA at a bank or investment firm like Fidelity, Vanguard, or Charles Schwab because those places offer better investment options or lower fees than what comes bundled with their health plan.

Key Takeaways

  • Your employer's benefits administrator can open an HSA for you during open enrollment if you choose an HDHP, and contributions come straight from your paycheck.
  • If you buy your own HDHP on the individual market, the insurance company selling the plan can open an HSA, or you can open one separately at a bank or brokerage.
  • You must have an HDHP in place before opening an HSA — the account is not useful without it, and the IRS will penalize withdrawals if you lose HDHP coverage.
  • Banks and brokerages often charge lower fees and offer investment options that employer-sponsored HSAs do not, but you have to set up the account yourself.
  • Whoever holds your HSA must report your contributions and withdrawals to the IRS on Form 5498-SA, so choose a provider that files accurately.

Opening an HSA through your employer

If your employer offers an HDHP, the easiest route is to enroll during open enrollment and let the benefits team set up your HSA. You will see the option when you choose your health plan — usually labeled as "HSA-may be able to access plan" or "HDHP with HSA." Once you elect the plan, the administrator (the insurance company or third-party benefits processor) opens the account automatically.

Contributions from your paycheck go directly into the account before taxes are taken out, which means you save on federal income tax, Social Security tax, and Medicare tax. Your employer may also contribute money to your HSA as part of your benefits package — this is taxable income to you, but it still goes into the account tax-free. You get a statement each month showing your balance and any investment earnings if the account is invested.

The downside is that employer HSAs often have limited investment options and higher fees than you would find at a bank or brokerage. If you want more control, you can transfer your employer HSA to another institution after it is open — this is called a trustee-to-trustee transfer and does not count as a withdrawal.

Opening an HSA on the individual market

If you buy your own HDHP through the health insurance marketplace (Healthcare.gov or your state's exchange) or directly from an insurer, you have two paths: open an HSA through the insurance company, or open one at a bank or brokerage and link it to your plan.

Many insurance companies that sell HDHPs offer a bundled HSA account. When you enroll in the plan, they will ask if you want to open an HSA with them. This is fast and requires minimal paperwork, but again, the investment options and fees may not be competitive. You can always move the money later.

Alternatively, you can open an HSA at a bank, credit union, or brokerage independently. You will need to provide proof that you have an HDHP — usually a copy of your plan documents or a letter from your insurer showing your coverage start date. The financial institution will verify your HDHP status before opening the account. This route gives you full control over where your money is invested and which fees you pay, but you are responsible for making contributions yourself (they do not come from your paycheck).

Banks and brokerages that offer HSA accounts

Major financial institutions that offer HSAs include Fidelity, Vanguard, Charles Schwab, TD Ameritrade, and Lively. Many regional banks and credit unions also offer HSA accounts. Each has different fee structures, investment options, and minimum balances.

Fidelity and Vanguard are popular because they charge no monthly maintenance fees and offer a wide range of mutual funds and exchange-traded funds (ETFs) for investing HSA money. Charles Schwab and TD Ameritrade have similar offerings. Lively is a digital-only HSA provider that partners with various banks and brokerages; it charges no fees and lets you invest through partner institutions.

Before opening an account, compare the monthly or annual fees, the investment options available, and whether there is a minimum balance requirement. Some accounts charge a small fee per transaction or per investment trade. If you plan to use your HSA only for near-term medical expenses and not invest the money, a simple savings account at a bank may be all you need.

What you need to open an HSA account

Regardless of where you open your account, you will need to provide proof of HDHP coverage. This usually means a copy of your health plan documents, a letter from your insurer confirming your coverage dates, or a screenshot of your plan details from your employer's benefits portal. Some institutions ask for your Social Security number and date of birth to verify your identity.

If you are opening through your employer, the benefits team handles verification — you just enroll in the HDHP and the account is created. If you are opening independently, the financial institution will ask you to confirm that you are covered by an HDHP and that you are not covered by any other health insurance that would disqualify you (such as a spouse's non-HDHP plan or Medicare).

You will also need to decide whether to keep the account as a simple savings account or invest the money. If you invest, you will choose which funds or stocks to buy. Most institutions let you change this later, so you do not have to decide immediately.

Timing: when to open your HSA

If you are enrolling in an employer HDHP, open your HSA during open enrollment, which typically happens once a year in the fall. Your contributions for that year can start as soon as your HDHP coverage begins, usually January 1 of the following year.

If you are buying an individual HDHP, you can open an HSA as soon as your coverage is active. If you buy a plan on Healthcare.gov during the annual open enrollment period (usually November through January), your coverage typically starts January 1, and you can open an HSA at that time. If you may have access to for a special enrollment period (such as after losing other coverage), you can open an HSA once your HDHP coverage begins.

You can also open an HSA retroactively for the current year if you become HDHP-may be able to access mid-year. For example, if you switch to an HDHP in June, you can open an HSA and contribute for the full year (January through December), as long as you were HDHP-may be able to access for the entire year or you make contributions only for the months you were covered.

Transferring an HSA to a different institution

If you open an HSA through your employer but later want to move it to a bank or brokerage with lower fees or better investment options, you can do a trustee-to-trustee transfer. This means the money moves directly from one institution to another without you touching it, so it is not taxed and does not count as a withdrawal.

Contact the new institution and ask them to initiate the transfer. They will request the account information from your current HSA provider and handle the paperwork. The process usually takes one to two weeks. You can do this transfer as many times as you want, though some institutions charge a small fee (usually $25 to $50) to process it.

Do not withdraw the money yourself and deposit it into a new account — that counts as a taxable withdrawal and you may owe taxes and penalties. Always use a trustee-to-trustee transfer.

Frequently Asked Questions

Can I open an HSA without an HDHP?

No. You must be covered by an HDHP to open or contribute to an HSA. If you open an account and then lose HDHP coverage, you can keep the account and withdraw money for medical expenses, but you cannot make new contributions and any non-medical withdrawals will be taxed and penalized.

Do I have to open my HSA where I buy my health insurance?

No. Your HSA and your health plan are separate. You can buy an HDHP from one company and open an HSA at a different bank or brokerage. You just need to prove to the HSA provider that you have HDHP coverage.

What happens if I open an HSA but do not use it?

Nothing negative. Your HSA money rolls over year to year — there is no "use it or lose it" rule like there is with FSAs. You can leave the money invested and let it grow, or withdraw it for medical expenses whenever you need to. If you withdraw money for non-medical reasons before age 65, you owe income tax plus a 20% penalty.

Can I have more than one HSA?

You can have multiple HSA accounts, but your total contributions across all accounts cannot exceed the annual limit set by the IRS (which varies by year and whether you have individual or family coverage). If you exceed the limit, you owe taxes and penalties on the overage. Most people keep one account to avoid this mistake.

What if my employer already opened an HSA for me but I want to move it?

You can transfer it to another institution using a trustee-to-trustee transfer. Contact the new institution, provide them with your current HSA account details, and they will handle the move. It usually takes one to two weeks and does not affect your taxes.