Opening a Health Savings Account: The Steps and What You Need

How to open an HSA in three steps

You open an HSA through a bank, credit union, or financial institution that offers them — not through your employer or the government. You will need three things: proof that you are covered by a high-deductible health plan (HDHP), a Social Security number or tax ID, and an initial deposit (which varies by institution, often $0 to $25). The institution will ask you to name a beneficiary, set up the account type (individual or family), and choose how to invest the money if you want to. Most accounts are open within one business day.

The timing matters because HSA contributions are tied to the tax year. If you open an account in January, you can contribute the full annual limit for that year. If you open one in November, you can still contribute for that year, but you will have less time to use the money before the year ends. You cannot open an HSA if you are not enrolled in an HDHP, so confirm your coverage first.

Your employer may offer an HSA through payroll, which means contributions come directly from your paycheck before taxes are taken out. This is simpler than opening one on your own, but you are not required to use your employer's plan — you can open an individual HSA at any bank that offers them.

Key Takeaways

You open an HSA at a bank or credit union, not through your employer or government, and you need proof of HDHP coverage to do so.
The account opens within one business day and requires a Social Security number, initial deposit (often $0), and a named beneficiary.
If your employer offers HSA payroll contributions, those dollars avoid income tax and Social Security tax, which is more tax-efficient than contributing on your own.
You can only contribute during the months you are enrolled in an HDHP, so timing your account opening to your coverage start date matters for the full annual limit.
Once open, you can use the account to pay for may have access to medical expenses when ready, or invest the money for long-term growth.

Checking your HDHP coverage before you open

An HSA requires that you be covered by a high-deductible health plan. Your health insurance documents will state whether your plan qualifies. Look for the deductible amount — for 2024, an individual HDHP must have a deductible of at least $1,600, and a family plan at least $3,200. Your plan documents will also list the maximum out-of-pocket cost, which must not exceed $4,050 for individual coverage or $8,050 for family coverage.

If you are unsure whether your plan qualifies, call your health insurance company and ask directly: "Is my plan a high-deductible health plan that qualifies for an HSA?" They will tell you yes or no. Do not rely on the plan name — some plans that sound like they might be high-deductible are not, and some that do not mention the deductible are.

If you are not yet enrolled in an HDHP, you cannot open an HSA until you are. If you are switching plans during open enrollment or a may have access to life event, you can open the account once your new coverage begins.

Opening an HSA through your employer versus on your own

If your employer offers an HSA plan, you will see it listed during benefits enrollment alongside your health insurance options. Payroll contributions are deducted before income tax and Social Security tax are calculated, which saves you roughly 25 to 30 percent on the money you contribute. For example, if you contribute $100 through payroll, you might save $25 to $30 in taxes. This is the most tax-efficient way to fund an HSA.

If your employer does not offer an HSA, or if you want to open one separate from your employer's plan, you can open an individual account at any bank or financial institution that offers HSAs. You will contribute after-tax dollars, meaning you pay income tax on the money before it goes in. However, you can deduct those contributions on your tax return (Form 1040, Schedule 1), which gives you back some of the tax benefit. Individual accounts take the same time to open as employer plans.

Some people open both: they contribute through their employer's plan during the year, then open an individual account later to make additional contributions if they have not reached the annual limit. This is allowed, as long as your total contributions across all accounts do not exceed the limit for your coverage type.

What documents and information you will need

The institution will ask for your Social Security number or Individual Taxpayer Identification Number (ITIN), your date of birth, and your address. You will also need to confirm your HDHP coverage — some institutions ask you to upload a copy of your insurance card or plan documents, while others accept your word that you are covered. If you are opening through your employer, the employer usually confirms your coverage automatically.

You will choose whether to open an individual account (covering only yourself) or a family account (covering your spouse and dependents). This choice affects your annual contribution limit. You will also name a beneficiary — the person who inherits the account if you die. This can be your spouse, a family member, or anyone else you choose.

If you want to invest the money rather than keep it in a cash account, the institution will ask you to choose from their investment options — usually mutual funds or target-date funds. You do not have to invest; you can keep the money in a savings account earning interest. Many people keep enough in cash to cover near-term medical expenses and invest the rest for long-term growth.

Making your first contribution and setting up ongoing deposits

Once the account is open, you can deposit money when ready. If you are contributing through payroll, you will set the amount during benefits enrollment, and it will come out of each paycheck. If you are opening an individual account, you can make a one-time deposit by bank transfer, check, or debit card, depending on what the institution accepts.

You can also set up automatic monthly transfers from your checking account to your HSA, which spreads your annual contribution across the year. For example, if your annual limit is $4,150 for individual coverage, you could set up a $346 monthly transfer. This approach helps you budget and ensures you do not forget to contribute.

Keep track of how much you have contributed across all accounts (employer plan plus individual accounts, if you have both). The IRS sets annual limits: $4,150 for individual coverage and $8,300 for family coverage in 2024. If you exceed the limit, you will owe taxes and a 6 percent penalty on the overage. The institution does not prevent you from over-contributing, so it is your responsibility to track the total.

Using the account once it is open

You can use your HSA to pay for may have access to medical expenses when ready after opening it. may have access to expenses include deductibles, copays, coinsurance, prescriptions, dental work, vision care, and many other health-related costs. You can pay out of pocket and then reimburse yourself from the HSA later, or you can use the HSA debit card (if the institution provides one) to pay directly.

Keep receipts for any expenses you pay with HSA money. The IRS does not require you to submit them when you withdraw, but you must be able to prove the money went to may have access to expenses if you are audited. If you use HSA money for something that is not a may have access to expense, you will owe income tax on that amount plus a 20 percent penalty.

One key advantage of an HSA is that money you do not spend in the current year rolls over to the next year — there is no "use it or lose it" important date like some other health accounts. This means you can let the account grow over time and use it for medical expenses years later, or even invest it for retirement.

Frequently Asked Questions

Can I open an HSA if I am on Medicare?

No. Once you enroll in Medicare, you are no longer covered by an HDHP, so you cannot contribute to an HSA. If you already have an HSA, you can keep it and use it to pay for Medicare premiums and out-of-pocket costs, but you cannot add new money to it.

What happens if I lose my HDHP coverage mid-year?

You can no longer contribute to the HSA for the months you are not covered by an HDHP. However, you keep the money already in the account and can continue to use it for may have access to medical expenses. If you regain HDHP coverage later in the year, you can resume contributions.

Do I have to use my employer's HSA, or can I open my own?

You are not required to use your employer's plan. You can open an individual HSA at any bank that offers them. Some people do both if they want more investment options or lower fees than their employer's plan offers.

How long does it take to open an HSA?

Most institutions open an HSA within one business day. If you are opening through payroll, it may take until the next pay period for contributions to begin. You can start using the account as soon as it is open.

Can I change HSA providers later?

Yes. You can move your HSA to a different bank or institution at any time. This is called a trustee-to-trustee transfer, and it does not count as a withdrawal. The new institution will handle the transfer for you.

This guide is for general information only and is not medical, financial, legal, or other professional advice. For decisions specific to your situation, consult a qualified professional. See our Editorial Policy.