You need a high-deductible health plan first, then you can open an HSA with a bank or financial institution

An HSA is a savings account tied to your health insurance, but you cannot open one without the right insurance plan in place. Your health plan must be classified as a high-deductible health plan (HDHP) by the IRS — this is not optional. Once you have that plan, you choose a financial institution to hold your HSA. Banks, credit unions, and investment firms all offer them. The institution does not have to be the same company that sold you your insurance.

The timing matters: you can only open an HSA during the months you are covered by an HDHP. If you switch to a regular health plan, you keep the account and the money in it, but you cannot add new contributions. If you switch back to an HDHP later, you can resume contributions.

Key Takeaways

  • Your health insurance must be a high-deductible health plan (HDHP) — check your plan documents or call your insurer to confirm the deductible amount meets IRS minimums.
  • You choose the financial institution that holds your HSA; it does not have to be your insurance company, and you can change institutions later.
  • You will need your Social Security number, proof of HDHP coverage, and basic banking information to open an account.
  • Contribution limits change yearly and depend on whether you have individual or family coverage — the IRS publishes these limits each October for the following year.
  • You can open an HSA online, by mail, or in person, depending on the institution; most banks process applications within one to three business days.

Confirm your health plan qualifies as an HDHP

Before you contact any financial institution, verify that your insurance plan actually meets the IRS definition of a high-deductible plan. The threshold changes yearly. For 2024, an HDHP must have a deductible of at least $1,600 for individual coverage or $3,200 for family coverage. These numbers shift each year, so check your plan documents or call your insurance company directly.

Your insurance company will tell you whether your plan is an HDHP. Some insurers label it clearly; others require you to ask. If you are unsure, look for the plan name or summary of benefits — it often says "HSA-may be able to access" or "high-deductible plan." Do not assume based on the deductible amount alone; the IRS also sets maximum out-of-pocket limits, and your plan must stay within those bounds.

Choose a financial institution to hold your account

You have three main categories to choose from: banks, credit unions, and investment firms. Banks and credit unions typically offer HSAs with checking or savings features, sometimes with debit cards attached. Investment firms let you invest HSA money in stocks and mutual funds, which means higher potential growth but also market risk. Some institutions charge monthly maintenance fees; others waive them if you maintain a minimum balance.

Compare what matters to you: whether you want to invest the money, whether you need a debit card, what fees explore, and how straightforward the website or app is to use. You do not need to use your insurance company's recommended institution — you can shop anywhere. Many people open an HSA with a bank they already use, but that is not required.

Gather the documents and information you will need

Most institutions ask for the same core information. You will need your Social Security number, date of birth, and current address. You will also need proof that you are covered by an HDHP — this is usually your insurance card, a letter from your employer, or a screenshot of your plan details from your insurer's website. Some institutions ask for your plan's deductible amount or the name of your insurance company.

If you are opening the account in person at a bank branch, bring your ID and insurance card. If you are opening online, you can upload documents or type in the information. Have your banking details ready if you plan to link the account to a checking account for transfers.

Open the account online, by mail, or in person

Most banks and credit unions let you open an HSA online through their website. You fill out a form with your personal information, upload proof of HDHP coverage, and agree to the account terms. The process usually takes 10 to 15 minutes. The institution then reviews your documents — this typically takes one to three business days — and sends you confirmation and account details by email.

Some smaller credit unions or banks still accept applications by mail. You fill out a paper form, include copies of your ID and insurance proof, and mail it to the address they provide. This route takes longer, usually one to two weeks. Opening in person at a branch is fastest if the institution has a local office near you; you can walk out with your account number the same day.

Set up contributions and understand the annual limits

Once your account is open, you decide how much to contribute each year. The IRS sets a maximum contribution limit that changes yearly. For 2024, the limit is $4,150 for individual coverage or $8,300 for family coverage. You can contribute less than the maximum, but not more. If you turn 55 before the end of the year, you can add an extra $1,000 catch-up contribution.

You can contribute in a lump sum or spread contributions throughout the year. If you are employed, your employer may offer payroll deductions, which means the money comes out of your paycheck before taxes. If you are self-employed or your employer does not offer this, you contribute directly to the account and deduct the contribution on your tax return. The IRS publishes updated limits each October for the following year, so check before the year starts.

Link your HSA to your checking account and set up a debit card if needed

After your account opens, the institution will ask whether you want to link it to a checking account for transfers. This is optional but useful if you plan to move money between accounts. Some HSAs come with a debit card that lets you pay medical expenses directly from the account; others require you to pay out of pocket and then request reimbursement from your HSA.

If your institution offers a debit card, you can request one during account setup or after. The card usually arrives within five to ten business days. Not all institutions offer cards, so if this feature matters to you, confirm it before you open the account.

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, even if you also have an HDHP. You can keep the account and spend the money in it, but you cannot add new contributions. If you are approaching Medicare age and want to maximize your HSA, you can contribute the catch-up amount ($1,000 extra per year) starting at age 55.

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

You can open an HSA with any institution, regardless of what your employer offers. If your employer contributes to an HSA they set up, you can keep that account and open a second one elsewhere. However, your total contributions across all accounts cannot exceed the annual IRS limit, so track contributions carefully if you have multiple accounts.

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

Once the institution confirms your account is open, you can usually start using it when ready. If you have a debit card, you may need to wait for it to arrive. If you are setting up payroll deductions through your employer, coordinate with your HR department — they typically process the change in the next payroll cycle, which could be one to two weeks away.

Can I change HSA institutions later if I am unhappy?

Yes. You can transfer your HSA balance to a different institution at any time. The process is called a trustee-to-trustee transfer, and the new institution handles most of the paperwork. There may be a small fee from your current institution, usually $25 to $50. The transfer typically takes one to two weeks.

What happens to my HSA if I lose my HDHP coverage?

Your account stays open and the money remains yours. You straightforward cannot add new contributions while you are not covered by an HDHP. If you switch back to an HDHP later, you can resume contributions. The money in the account never expires and can be used for may have access to medical expenses at any time in the future.