You cannot open a new HSA without being enrolled in a high-deductible health plan, but you can keep an existing HSA after you leave that plan

The IRS ties HSA may be able to access to enrollment in a high-deductible health plan (HDHP). You must be covered by an HDHP on the first day of the month in which you make a contribution. If you do not have an HDHP, you cannot open an HSA or add money to one.

However, if you already own an HSA and you drop your HDHP coverage, you keep the account. You cannot contribute new money once you lose HDHP may be able to access, but the money already in the account stays yours. You can withdraw it for any reason at any time—though non-medical withdrawals before age 65 are taxed as income plus a 20 percent penalty.

This distinction matters because it creates two separate situations: people trying to open an HSA without insurance (not possible), and people who had an HSA and lost their HDHP (possible, with limits on what you can do with the account).

Key Takeaways

  • You must be enrolled in a high-deductible health plan on the first day of the month to open an HSA or contribute to one.
  • If you already own an HSA and drop your HDHP, you keep the account and the money in it, but cannot add new contributions.
  • Money in an HSA after you lose HDHP coverage can be withdrawn for medical expenses tax-free, or for any reason if you pay income tax plus a 20 percent penalty.
  • If you need an HSA but do not have an HDHP, you must first enroll in a high-deductible plan through your employer, the marketplace, or a private insurer.

What the IRS requires to open an HSA

The IRS has three core requirements. First, you must be covered by an HDHP. Second, you cannot be covered by any other health insurance that is not an HDHP—with narrow exceptions for accident, disability, dental, vision, and long-term care coverage. Third, you cannot be claimed as a dependent on someone else's tax return, and you cannot be enrolled in Medicare.

The HDHP itself must meet IRS minimums for deductibles and out-of-pocket limits. For 2024, an individual HDHP must have a deductible of at least $1,600 and out-of-pocket maximum of $3,200. A family plan must have a deductible of at least $3,200 and out-of-pocket maximum of $6,400. These numbers change each year.

If you meet all three requirements, you can open an HSA through a bank, credit union, or investment firm. You do not have to open it through your employer or your insurance company, though many employers offer HSAs as part of their benefits package.

What happens when you lose HDHP coverage

The moment your HDHP coverage ends, you stop being able to contribute to your HSA. You cannot make contributions for the remainder of that calendar year, and you cannot make contributions in future years unless you re-enroll in an HDHP.

The account itself does not close. The money stays in the account and continues to grow if it is invested. You can withdraw money for may have access to medical expenses at any time, tax-free and penalty-free. may have access to expenses include doctor visits, prescriptions, dental work, vision care, mental health treatment, and many other health-related costs.

If you withdraw money for a non-medical reason before age 65, you owe income tax on the withdrawal plus a 20 percent penalty. After age 65, you can withdraw money for any reason without the penalty—though you still owe income tax on non-medical withdrawals, just as you would with a traditional IRA.

Common situations where people lose HDHP coverage

The most common scenario is leaving a job where your employer offered an HDHP. When your coverage ends, you have 60 days to decide what to do. You can enroll in a marketplace plan (which may or may not be an HDHP), continue coverage through COBRA (which preserves your HDHP if your old employer plan was one), or go uninsured.

Another scenario is switching to a non-HDHP plan while staying with the same employer. If your employer offers multiple plans and you choose a PPO or HMO instead of an HDHP, you lose HSA contribution may be able to access when ready. Some employers allow you to switch plans only during open enrollment, so you would be locked out of contributions until the next enrollment period.

A third scenario is aging into Medicare. Once you enroll in Medicare Part A, 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 withdraw from it, but contributions stop.

How to get an HSA if you do not currently have one

You need an HDHP first. If your employer offers one, you can enroll during open enrollment or within 30 days of a may have access to life event (marriage, birth, loss of other coverage). If your employer does not offer an HDHP, you can buy one through the health insurance marketplace in your state. Go to Healthcare.gov, enter your information, and filter for plans labeled as high-deductible.

Once your HDHP coverage is active, you can open an HSA. You have until the tax filing important date (usually April 15) of the following year to open an account and make contributions for the current year. If you open the account after the plan year starts, you can still contribute for that year, but you must do so before the important date.

Some employers automatically enroll employees in an HSA when they choose an HDHP, while others require you to open one yourself. Check with your benefits administrator or your plan documents to see whether an account has already been set up for you.

The relationship between HSA ownership and insurance status

An HSA is a savings account, not insurance. It holds money that you use to pay for medical care. The account itself does not provide coverage or pay medical bills directly—you use the money in it to reimburse yourself for expenses you have already paid, or to pay providers out of pocket.

Because the account is tied to an HDHP, losing the insurance means losing the ability to fund the account going forward. But the money you have already saved stays with you. This is why people sometimes keep an HSA long after they leave a job or switch insurance plans: the account becomes a personal medical savings vehicle, even though it is no longer being funded.

Frequently Asked Questions

Can I open an HSA if I have a spouse with an HDHP but I do not?

No. You must be individually enrolled in an HDHP to open your own HSA. If you are covered as a dependent on your spouse's HDHP, you can contribute to a family HSA, but you cannot open a separate individual account. If you want your own HSA, you need your own HDHP coverage.

What if I have an HSA but switch to Medicare?

You keep the account and the money in it. You cannot make new contributions once you enroll in Medicare Part A, but you can withdraw money for may have access to medical expenses tax-free at any time. After age 65, you can also withdraw for non-medical reasons without the 20 percent penalty (though you still owe income tax).

Can I use an old HSA if I get a new HDHP later?

Yes. If you had an HSA, lost HDHP coverage, and later enroll in a new HDHP, you can resume contributing to the same account. You do not have to open a new one. The old money stays in the account, and you can add new contributions once your new HDHP coverage is active.

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

You can save it. There is no requirement to spend the money in any particular timeframe. However, if you withdraw money for non-medical reasons before age 65, you owe income tax plus a 20 percent penalty. After 65, you can withdraw for any reason without the penalty.

What happens to my HSA if I become unemployed?

The account stays open. If your employer coverage ends, you have 60 days to enroll in new coverage (through COBRA, the marketplace, or another source). If you enroll in a marketplace HDHP within that window, you can resume contributions. If you do not enroll in an HDHP, you keep the account but cannot contribute until you get HDHP coverage again.