Banks, insurers, and HSA-specific custodians all offer accounts

You can open an HSA through three types of organizations: a bank, your health insurance company, or a dedicated HSA custodian. Each route has different features, fees, and investment options. The account itself is the same legally—what changes is who holds the money and what they charge you to hold it.

Your health insurance company often makes opening an HSA easiest because they already have your information and can verify that you're enrolled in a high-deductible health plan (HDHP). Many insurers let you open an account online in minutes during enrollment or after you sign up for their plan. Banks offer HSAs as well, though they typically require you to bring proof of HDHP coverage. Dedicated HSA custodians—companies like HealthEquity, Lively, and Fidelity that specialize only in HSAs—usually have lower fees and more investment choices, but the application takes slightly longer because they verify your HDHP status independently.

Key Takeaways

  • Your health insurance company is the fastest route if you're already enrolled in an HDHP, since they can confirm your may be able to access immediately.
  • Banks charge varying monthly fees and may limit your investment options to savings accounts or money market funds.
  • Dedicated HSA custodians typically charge lower fees and offer stock and mutual fund investments, but require you to submit proof of HDHP coverage.
  • You can open an HSA only during the months you're covered by an HDHP, so timing matters if you're switching plans.

Opening through your health insurance company

If your insurer offers an HSA, this is usually the path of least resistance. When you enroll in an HDHP through your employer or the individual market, the insurer typically sends you a link to open an HSA account or offers it as an option during enrollment. You'll provide your Social Security number, address, and banking information. The insurer already knows you meet the HDHP requirement, so there's no separate verification step.

The downside is that many insurers' HSA accounts have higher monthly maintenance fees—sometimes $3 to $5—and limited investment options. Some let you keep money only in a savings account earning minimal interest. Others partner with a third-party custodian behind the scenes, which means you're paying the insurer's markup on top of the custodian's fees. Before you open through your insurer, ask what the monthly fee is, whether you can invest in mutual funds or stocks, and what the interest rate is on savings balances.

Opening through a bank

Most major banks and many credit unions offer HSAs. You can walk into a branch or open one online. You'll need to show proof that you're enrolled in an HDHP—usually a copy of your insurance card, a letter from your insurer, or a screenshot of your plan details. Some banks accept this electronically; others ask you to mail or fax it.

Bank HSAs typically come with monthly fees ranging from $0 to $4, depending on the institution and whether you meet balance or direct-deposit requirements. Most banks limit you to keeping money in a savings or money market account, so you won't be able to invest in stocks or mutual funds. This makes banks a reasonable choice if you plan to spend your HSA money each year on medical expenses rather than save it long-term. If you already bank somewhere, opening an HSA there keeps everything in one place, though you may pay more in fees than you would at a dedicated custodian.

Opening through a dedicated HSA custodian

Companies like HealthEquity, Lively, Fidelity, and Optum Bank specialize only in HSAs. They typically charge lower monthly fees—often $0 to $2.50—and let you invest in stocks, mutual funds, and exchange-traded funds (ETFs) once your balance reaches a certain threshold, usually $1,000 to $2,500. This makes them the best choice if you want to grow your HSA over time rather than spend it immediately.

To open an account, you go to the custodian's website, enter your personal information, and upload proof of HDHP coverage. This proof can be a photo of your insurance card, a screenshot of your plan details from your insurer's website, or a letter from your employer's benefits administrator. The custodian verifies this independently, which takes one to three business days. Once approved, you can fund the account by linking a bank account or setting up payroll deductions if your employer offers that option.

The main trade-off is that you're opening an account with a company you may not have used before, so there's a small learning curve with their website or app. However, most custodians have straightforward interfaces and customer service lines if you get stuck. If you're comparing custodians, check their fee schedule, investment options, and whether they offer payroll deduction (which is convenient if your employer supports it).

What you need to open an account

Regardless of where you open your HSA, you'll need the same basic information: your Social Security number, a government-issued ID, your current address, and proof that you're enrolled in an HDHP. The proof of HDHP coverage is the one document that varies by route. Your insurer already has it, so they don't ask. A bank or custodian will ask you to provide it.

Proof of HDHP coverage can be any of the following: your insurance card (front and back), a letter from your insurer stating your plan type and deductible, a screenshot of your plan details from your insurer's website or app, or a letter from your employer's benefits administrator. Some organizations accept these electronically; others ask you to mail or fax them. Ask before you apply so you have the right document ready.

You'll also need a bank account to link to your HSA so you can fund it and withdraw money. This can be a checking or savings account at any bank, not necessarily the same bank where you're opening the HSA.

Timing: when you can open an account

You can open an HSA only during the months you're covered by an HDHP. If you enroll in an HDHP on January 1, you can open an HSA anytime in January. If you switch to an HDHP mid-year—say, in July—you can open an account in July. If your HDHP coverage ends, you can no longer contribute to the HSA, though you can keep the account and spend down the balance.

This timing rule matters if you're switching plans. If you're currently on a non-HDHP plan and want to move to an HDHP to start an HSA, you can only open the account once your new HDHP coverage is active. Your insurer or employer can tell you the exact date your coverage begins. If you're self-employed or buying on the individual market, that date is usually the first of the month after you enroll, though it can vary by state and insurer.

Comparing fees across providers

Monthly maintenance fees are the biggest cost difference between providers. A bank might charge $3 per month ($36 per year), while a dedicated custodian charges $0. Over ten years, that's a $360 difference on the same account. However, some custodians charge per transaction or per investment trade, so read the full fee schedule before you decide.

Other fees to watch for include: wire transfer fees (usually $15 to $25 if you need to move money out), check-writing fees (some custodians charge $1 to $3 per check), and investment management fees (if the custodian offers advisory services). Most HSA accounts don't charge these unless you actively use those services, but it's worth knowing they exist. Ask the provider for a complete fee schedule before you open the account.

Frequently Asked Questions

Can I open an HSA if I'm self-employed?

Yes. You need to be enrolled in an HDHP, which you can purchase on the individual market through your state's health insurance marketplace or directly from an insurer. Once your coverage is active, you can open an HSA through any bank or custodian. You'll provide proof of your HDHP coverage the same way anyone else does.

What if my employer offers an HSA but I want to open one elsewhere?

You can open an HSA with a different provider, but you can only contribute to one HSA per year. If your employer is already contributing to an account, opening a second account means your total contributions across both accounts cannot exceed the annual limit set by the IRS. Most people stick with their employer's account to avoid this complication, but if your employer's fees are high, you can roll the balance to a different custodian once the account is established.

How long does it take to open an account?

Through your insurer, you can usually open an account in minutes during enrollment. Through a bank, it typically takes one to three business days once you submit proof of HDHP coverage. Through a dedicated custodian, verification usually takes one to three business days as well. Once approved, you can fund the account immediately.

Do I have to open an HSA with the same bank where I have my checking account?

No. Your HSA can be at any bank or custodian, and it doesn't have to be the same institution where you keep your regular checking or savings account. You'll link your checking account to your HSA for funding and withdrawals, but the two accounts are separate.

What happens if I open an HSA but then lose HDHP coverage?

You can keep the account and any money in it. You just can't add new contributions once your HDHP coverage ends. The money stays in the account and grows tax-free as long as you use it for medical expenses. If you re-enroll in an HDHP later, you can start contributing again.