You need a high-deductible health plan first, then a bank or financial institution to hold the account

A Health Savings Account (HSA) is a savings account tied to a specific type of health insurance. You cannot open one without being enrolled in a high-deductible health plan (HDHP). The HDHP is what makes you may be able to access; the HSA is where you put money aside to pay medical costs before your insurance kicks in.

The process has three parts: confirm your insurance qualifies, choose a financial institution to hold the account, and make your first contribution. Most of this happens outside your insurance company—your insurer tells you that you have an HDHP, but a separate bank or brokerage actually manages your HSA money.

You can open an HSA at any point during the year you are covered by an HDHP, but contributions for that year have a deadline. If you enroll in an HDHP in March, you can still contribute for the full year, but you must do so by April 15 of the following year (the tax filing deadline).

Key Takeaways

  • Your health insurance company will tell you whether your plan qualifies as a high-deductible health plan; if it does, you are may be able to access to open an HSA.
  • You open an HSA at a bank, credit union, or brokerage—not through your insurance company—and you can shop around for lower fees and better investment options.
  • You contribute money yourself; your employer may also contribute, but the account belongs to you and moves with you if you change jobs.
  • Contributions for a given year must be made by April 15 of the following year, and the amount you can contribute changes each year based on IRS limits.
  • Money in an HSA rolls over year to year and earns interest or investment returns, unlike a flexible spending account (FSA), which you lose if you do not spend it.

Confirm your health plan qualifies as a high-deductible plan

Your health insurance company will state clearly whether your plan is a high-deductible health plan. Look at your plan documents, your insurance card, or your insurer's website. The plan name often includes "HDHP" or "high-deductible," but not always—some plans just say "catastrophic" or use a brand name.

If you are unsure, call your insurance company's customer service line and ask directly: "Is my plan a high-deductible health plan?" They will give you a yes or no. You can also check the IRS website, which publishes the minimum deductible amounts each year; if your plan meets those thresholds, it qualifies.

Self-employed people and those buying insurance through the marketplace should check their plan documents at the time of purchase. Marketplace plans often come in metal tiers (bronze, silver, gold, platinum); bronze and some silver plans are typically high-deductible, but not all. Your insurance company or the marketplace website will confirm.

Choose a financial institution to hold your HSA

Once you know you have an HDHP, you choose where to open your account. Common options include banks (Chase, Bank of America, Fidelity Bank), credit unions, and investment brokerages (Fidelity, Vanguard, Charles Schwab). Some employers offer a default HSA provider, but you are not required to use it—you can open an account anywhere.

Compare fees before you decide. Some institutions charge monthly maintenance fees ($2 to $5), per-transaction fees, or investment fees if you invest the money rather than keep it in a cash account. Others charge nothing. If your balance is small (under $1,000), a no-fee option at a bank or credit union may be best. If you plan to invest the money and let it grow, a brokerage with low investment fees may save you more over time.

You do not need your employer's permission to open an HSA elsewhere, and you do not need to tell your insurance company which institution you choose. The account is yours alone.

Gather documents and open the account online or in person

Most HSA providers let you open an account online in 10 to 15 minutes. You will need your Social Security number, date of birth, and address. Some institutions ask for proof of your HDHP enrollment—a copy of your insurance card or a letter from your employer's benefits department stating that you are enrolled in a high-deductible plan.

If you open the account online, upload or email the proof of coverage. If you open in person at a bank or credit union branch, bring your insurance card and a government-issued ID. The institution will verify your may be able to access before the account is activated.

Once the account is open, you will receive account details: an account number, routing number (if it is a bank account), and login credentials for online access. You can then set up contributions.

Contribute money to your HSA

You can contribute in several ways. If your employer offers payroll deduction, money comes out of your paycheck before taxes—this is the most common method and saves you the most on taxes. You set the amount with your employer's benefits or payroll department, and they send it to your HSA provider.

You can also contribute on your own by transferring money from your bank account to your HSA. This is called a direct contribution. You will need to report it on your tax return (Form 8889) to get the tax deduction, but the money goes in immediately.

If someone else (a spouse, family member, or friend) wants to contribute to your HSA, they can send money to your account, but you must report it as a contribution and claim the deduction yourself on your tax return. The account is in your name only.

The IRS sets annual contribution limits. For 2024, the limit is $4,150 for individual coverage and $8,300 for family coverage. These limits change each year. If you turn 55 during the year, you can contribute an extra $1,000 (called a catch-up contribution). Check the IRS website each January for the current year's limits.

Understand the contribution deadline and tax reporting

Contributions for a given tax year must be made by April 15 of the following year. If you enroll in an HDHP in November, you can still contribute for that full year, but you have until April 15 of the next year to do so. This is the same deadline as filing your tax return.

If you contribute through payroll deduction, your employer handles the tax reporting. If you contribute on your own, you must file Form 8889 (Health Savings Accounts) with your tax return to claim the deduction. Your HSA provider will send you a Form 5498-SA in January showing how much you contributed; use this to fill out Form 8889.

If you over-contribute (put in more than the IRS limit), you must withdraw the excess by April 15 or pay a 6 percent excise tax on the overage each year it sits in the account. Your HSA provider can help you calculate whether you have over-contributed.

Use your HSA to pay medical expenses

Once money is in your account, you can withdraw it to pay may have access to medical expenses: deductibles, copays, coinsurance, prescriptions, dental work, vision care, and many other costs. You do not have to use the money in the same year you contribute it—it rolls over indefinitely.

Your HSA provider will give you a debit card or checkbook to access the money. Some providers let you pay providers directly from the account; others require you to pay out of pocket and then request reimbursement.

Keep receipts for all withdrawals. The IRS can audit your HSA and ask you to prove that withdrawals were for may have access to expenses. If you withdraw money for non-medical expenses before age 65, you pay income tax on the withdrawal plus a 20 percent penalty. After age 65, you can withdraw money for any reason without the penalty, but you still pay income tax on non-medical withdrawals.

Frequently Asked Questions

Can I open an HSA if my employer does not offer one?

Yes. You do not need your employer to set up an HSA for you. As long as you are enrolled in a high-deductible health plan—whether through your employer, the marketplace, or a private purchase—you can open an HSA at any bank or brokerage. You will contribute on your own rather than through payroll deduction, but the account works the same way.

What happens to my HSA if I change jobs?

Your HSA stays with you. The account is in your name, not your employer's. If your new job offers a different HSA provider, you can roll your old balance into the new account or keep both accounts open. You can also leave money in your old HSA and never touch it—it will continue to earn interest or investment returns.

Can I invest the money in my HSA?

Many HSA providers let you invest in mutual funds, stocks, or bonds, similar to a retirement account. Some require a minimum balance (often $1,000 to $2,000) before you can invest. If you invest, you pay investment fees, but you also have the potential to earn higher returns over time. Money you need soon should stay in the cash account.

What if I lose my HDHP coverage mid-year?

You can no longer contribute to your HSA once you are no longer enrolled in an HDHP. Money already in the account stays there and can still be used for may have access to medical expenses. If you switch to a non-high-deductible plan, you must stop contributions immediately or face tax penalties.

Do I have to use my HSA for medical expenses, or can I just save it?

You can save it indefinitely. Unlike a flexible spending account, an HSA does not have a "use it or lose it" rule. You can contribute for years and never withdraw, letting the money grow. This makes an HSA useful as a long-term medical savings tool, especially if you are healthy and do not have many medical expenses now.