How to open an HSA

You open an HSA through a bank, credit union, or insurance company that offers HSA accounts — not through your employer or the government. The process takes 15 to 30 minutes and requires proof of enrollment in a high-deductible health plan (HDHP). You will need your Social Security number, a government ID, and proof that your current health insurance meets HSA requirements. Most providers let you open an account online, by phone, or in person.

The first step is confirming your health plan qualifies. Your insurance company or employer benefits team can tell you whether your plan is HSA-may be able to access. If it is, they will usually provide a letter or document stating that fact. Some employers automatically enroll employees in HSA-may be able to access plans; others require you to choose one during open enrollment. You cannot open an HSA unless you are already covered by an HDHP.

Once you have proof of your HDHP coverage, you choose a financial institution. Large banks like Chase, Bank of America, and Wells Fargo offer HSAs. Credit unions, online banks like Fidelity and Lively, and insurance companies also administer them. Each charges different fees — some charge nothing, others charge $2 to $5 per month. Compare the fee structure and investment options before you choose, because switching accounts later is possible but takes time.

Key Takeaways

  • You must be enrolled in a high-deductible health plan before opening an HSA; your insurance company or employer can confirm whether your plan qualifies.
  • HSAs are opened through banks, credit unions, or insurance companies directly — not through your employer or a government office.
  • You will need your Social Security number, a government ID, and proof of HDHP enrollment to complete the application.
  • Monthly fees vary by provider, ranging from zero to $5 or more, so comparing costs before you open an account saves money over time.
  • The account opens within one business day in most cases, though you may not be able to use funds until your HDHP coverage begins.

What documents and information you need

Gather these items before you start the application: your Social Security number, a valid government-issued ID (driver's license or passport), your date of birth, and your current address. You will also need proof that you are enrolled in an HDHP. This is usually a letter from your insurance company, an employer benefits statement, or a screenshot of your plan details from your insurer's website showing the deductible amount and that it is HSA-may be able to access.

Some providers ask for your employer's name and the date your HDHP coverage begins. If you are self-employed or buying insurance through the marketplace, have your policy number and coverage start date ready. If you already have a checking or savings account at the institution where you want to open your HSA, the process moves faster because they already have your banking information on file.

Choosing between custodian types

HSAs are held by a custodian — the financial institution that manages the account. The three main types are banks, insurance companies, and specialized HSA administrators. Banks offer the simplest setup and lowest fees but often limit investment options. Insurance companies sometimes bundle HSAs with health plans and may offer lower fees to their members. Specialized HSA administrators like Fidelity, HealthEquity, and Lively focus only on HSAs and typically offer more investment choices and lower fees.

If you plan to invest your HSA funds in stocks or mutual funds rather than keep the money in a savings account, a custodian with investment options matters. If you only want to use the account to pay current medical expenses, a basic bank account works fine. Check whether the custodian charges a monthly maintenance fee, a per-transaction fee, or a fee to invest. Some waive fees if you keep a minimum balance, usually $1,000 to $2,500.

The application process

Most providers let you start online. Go to the institution's website, find the HSA section, and click to open an account. You will enter your personal information, Social Security number, and address. The form will ask when your HDHP coverage begins — use the date your plan becomes active, not the date you applied. You will upload or provide your proof of HDHP enrollment at this stage.

The application usually takes 10 to 20 minutes. After you submit, the provider verifies your identity and HDHP status, which takes one to three business days. Once approved, your account opens and you receive an account number. Some providers issue a debit card immediately; others mail it within five to seven business days. You can transfer money into the account as soon as it opens, but you may not be able to use it until your HDHP coverage officially starts.

If you apply by phone, a representative walks you through the same questions and can answer questions about fees and investment options in real time. In-person applications at a bank branch follow the same process but let you bring documents to show the representative directly.

Funding your account after it opens

After your HSA opens, you decide how much to contribute each year. The contribution limit is set by the IRS and changes annually — for 2024, the limit is $4,150 for individual coverage and $8,300 for family coverage. You do not have to contribute the full amount. Many people contribute smaller amounts throughout the year or make one lump-sum contribution at the start of the year.

You can fund your HSA three ways: by transferring money from your bank account, by having your employer deduct contributions from your paycheck, or by making a direct deposit. Employer payroll deductions are the most common because the money comes out pre-tax, lowering your taxable income. If you fund it yourself, you claim the deduction on your tax return. The account must be funded by December 31 of the year you want the contribution to count.

Once money is in the account, you can leave it there to grow, invest it, or spend it on medical expenses. Unlike a flexible spending account (FSA), HSA funds do not expire at the end of the year — they roll over indefinitely. This makes HSAs useful for saving for future medical costs, including retirement.

What happens if your health plan changes

If you switch to a non-HSA-may be able to access plan, you can no longer contribute to your HSA, but you keep the account and the money already in it. You can continue to use the funds for medical expenses tax-free. If you switch back to an HDHP later, you can resume contributions. Some people keep an HSA open for years after leaving an HDHP-may be able to access job, using it as a long-term medical savings account.

If you change employers but stay on an HDHP, your HSA stays with you — it is not tied to your job. You can keep the same account or transfer the balance to a new custodian if your new employer uses a different provider. Transfers between custodians take two to four weeks and do not count as a withdrawal, so there are no tax consequences.

Common mistakes to avoid when opening an HSA

Do not open an HSA before confirming your health plan qualifies. If your plan is not HSA-may be able to access, you cannot use the account and may face tax penalties if you contribute. Verify with your insurance company or employer in writing before you apply. Do not assume your employer's plan is HSA-may be able to access just because the company offers HSAs — some employers offer both HSA-may be able to access and non-HSA-may be able to access plans.

Do not ignore the fee structure. A $5 monthly fee costs $60 per year, which adds up if you are not using the account actively. Compare at least three providers before you choose. Do not wait until the last day of the year to fund your account if you are making a lump-sum contribution — delays in transfers or verification can cause you to miss the deadline. Do not assume you can use the account before your HDHP coverage officially begins, even if the account is open. Most providers block spending until the coverage date.

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 keep the account and can use the funds for medical expenses, but you cannot add new money. You should stop contributing the month you turn 65 or enroll in Medicare, whichever comes first.

What if my employer offers an HSA but I want to use a different bank?

You can open an HSA with any custodian, even if your employer uses a different one. Your employer's plan is optional. If your employer's custodian charges high fees or does not offer the features you want, open an account elsewhere and contribute on your own. You can still get the tax deduction on your tax return.

How long does it take to start using my HSA after I open it?

The account usually opens within one business day, but you may not be able to spend the money until your HDHP coverage begins. If your coverage starts on January 1 and you open the account in December, you can fund it in December but cannot use it until January 1. Check with your provider about their specific timing rules.

Can I open an HSA if I am self-employed?

Yes, as long as you have an HSA-may be able to access health plan. Self-employed people buy plans through the marketplace or a broker. Once you have the plan and proof of coverage, you can open an HSA the same way an employee does. You can contribute up to the annual limit and deduct the contribution on your tax return.

What if I already have money in a different HSA?

You can have only one HSA at a time. If you already have an account and want to switch custodians, request a trustee-to-trustee transfer. The money moves directly from one account to the other without you touching it, so there are no tax consequences. The transfer usually takes two to four weeks.