A health savings account makes sense if you have a high-deductible health plan and expect to pay medical costs out of pocket in the next few years

An HSA is worth opening when two things are true: you are enrolled in a high-deductible health plan (HDHP) through your job or the individual market, and you have money available to set aside for medical expenses. The account lets you save pre-tax dollars, which means you pay less in income tax. You can use that money now for medical bills, or leave it invested and use it later in retirement. If neither of those situations describes you, an HSA is not the right tool.

The catch is that you can only open an HSA if your health insurance plan qualifies. Most standard employer plans and many marketplace plans do not. You have to check your plan documents or ask your benefits administrator whether your plan meets the HDHP definition. If it does not, you cannot open an HSA no matter how much you want to.

Key Takeaways

  • You can only open an HSA if your health insurance is a high-deductible plan, which your employer or insurance company can confirm.
  • An HSA saves you money on taxes when you use it to pay medical bills, but only if you have the cash available to contribute.
  • You own the money in an HSA even if your employer contributes to it, and you can take it with you if you change jobs.
  • If you rarely use medical care and do not expect large out-of-pocket costs, a regular savings account may serve you better than an HSA.

When an HSA saves you the most money

An HSA saves you money in two ways. First, the money you put in reduces your taxable income for the year, just like a traditional retirement account does. If you contribute $3,000 to an HSA and you are in the 22% tax bracket, you avoid paying roughly $660 in federal income tax. That is an when ready gain.

Second, if you use the money for medical expenses, you pay no tax on the growth either. If you invest your HSA balance and it grows, you do not owe tax on those gains when you withdraw the money for medical bills. That is different from a regular savings account, where you pay tax on any interest you earn.

The tax advantage is largest when you have predictable medical costs you know you will pay out of pocket. If you have a chronic condition that requires regular prescriptions, physical therapy, or specialist visits, and your plan's deductible is high, an HSA can offset some of that burden. The same is true if you are planning a procedure you know is coming — dental work, surgery, or fertility treatment — and you want to pay for it with pre-tax dollars.

When an HSA is not the right choice

An HSA requires you to have cash available to contribute. If you are living paycheck to paycheck and cannot afford to set aside money for medical expenses, opening an HSA will not help you. You would be better off keeping that money in a regular checking or savings account where you can access it without penalty if an emergency happens.

An HSA also makes less sense if you rarely use medical care and do not expect significant out-of-pocket costs. If you are young and healthy, rarely see a doctor, and your plan's deductible is low, the tax savings may be small. In that case, the effort of managing an HSA account might not be worth the benefit.

You should also think twice about an HSA if you are not sure you will stay in the United States or keep your current immigration status. An HSA is tied to a U.S. tax identification number, and the rules around who can hold one are strict. If your status might change, talk to a tax professional before opening one.

How much you can contribute and when

The amount you can contribute to an HSA changes each year and depends on whether your plan covers only you or your family. For 2024, the limit for individual coverage is $4,150 and for family coverage is $8,300. These numbers are set by the federal government and change annually. Your employer or insurance company can tell you the current limit for your plan type.

You can contribute money to your HSA in several ways. If your employer offers one, you can usually have contributions taken directly from your paycheck before taxes are calculated. This is the easiest route because the money never hits your taxable income. You can also contribute on your own if you have an individual plan, though you will need to claim the deduction on your tax return.

You have until the tax filing important date — usually April 15 of the following year — to contribute for the previous year. If you open an HSA mid-year, you can still contribute for that full year as long as you make the deposit by the important date.

What happens to your HSA money if you change jobs

The money in your HSA belongs to you, not your employer. If you leave your job, you keep the account and the balance stays with you. You do not lose it, and your new employer cannot take it. This is different from some other benefits that disappear when you change jobs.

If your new job offers an HSA, you can roll your old balance into the new account, or you can keep both accounts open. If your new job does not offer an HSA, you can keep your old account open as long as you want, though you will not be able to add new contributions unless you enroll in an HDHP on the individual market.

Some employers offer HSA accounts through third-party administrators like Fidelity, Lively, or HealthEquity. These companies hold the money and let you invest it or spend it. If you change jobs, you can usually transfer your balance to a new account with the same administrator or move it to a different one.

The difference between spending now and saving for later

You can use HSA money for medical expenses right away, or you can leave it in the account and let it grow. Many people use their HSA like a checking account, spending the money as soon as they have a medical bill. Others treat it like a retirement account, investing the balance and only withdrawing money when they need it.

If you use the money for medical bills as you incur them, you get the when ready tax benefit and you do not have to worry about investment risk. You pay for a doctor visit or prescription with pre-tax dollars, and that is the end of it.

If you leave the money invested, it can grow over decades. Some people use their HSA as a second retirement account, contributing the maximum each year and never touching it until they are older. At that point, they can withdraw money for medical expenses tax-free, or for any reason after age 65 (though non-medical withdrawals after 65 are taxed like a regular retirement account). This strategy only works if you have other money available to pay medical bills now.

Questions to ask before you decide

Before you open an HSA, answer these questions honestly. Do you have cash available to contribute, or would opening an account stretch your budget? Can you afford to pay medical bills out of pocket while the HSA money grows, or do you need to spend it right away? Are you planning to stay in the United States and keep your current job or insurance situation stable for at least the next year?

If you answered yes to all three, an HSA is likely worth opening. If you answered no to any of them, a regular savings account or a different strategy may serve you better. You can also talk to your employer's benefits administrator or a tax professional who can look at your specific situation and give you a clearer answer.

Frequently Asked Questions

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

Yes. If you are enrolled in a high-deductible health plan through the individual market or through a spouse's job, you can open an HSA on your own through a bank or financial company. You will claim the contribution as a deduction on your tax return. Your insurance company or a tax professional can confirm whether your plan qualifies.

What happens if I use my HSA money for something that is not a medical expense?

Before age 65, you owe income tax on the withdrawal plus a 20% penalty. After age 65, you owe income tax but not the penalty. Keep receipts for medical expenses so you can prove what the money was used for if you are audited.

Can I have an HSA and a flexible spending account at the same time?

No. Federal law does not allow you to hold both in the same year. You have to choose one or the other. Some employers offer both options, so you can pick which one fits your situation better.

Do I have to use all my HSA money by the end of the year?

No. Unlike a flexible spending account, HSA money rolls over. Whatever you do not spend stays in the account and earns interest or investment returns. You can let it grow indefinitely.

What if I move to another country?

You can keep your HSA, but you cannot make new contributions once you are no longer a U.S. resident for tax purposes. You can withdraw money for medical expenses without penalty, but the withdrawal counts as taxable income. Talk to a tax professional about your specific situation before you move.