You can have only one HSA at a time, but you can move money between accounts or switch to a different one
Federal law limits you to a single Health Savings Account (HSA) per year. If you try to open a second one while the first is active, the IRS will treat the extra contributions as overfunding — which means you'll owe taxes on the excess money plus a 6% penalty each year it sits there.
That said, you're not locked into the same HSA forever. You can close one account and open another with a different bank or provider. You can also move your money from one HSA to another through a direct transfer, which doesn't count as a withdrawal and doesn't trigger taxes or penalties. The key is timing: the rule is one HSA per person per year, not one HSA per person for life.
Key Takeaways
- You can have only one active HSA at any given time; opening a second one while the first exists triggers IRS penalties.
- You can move money from one HSA to another through a direct trustee-to-trustee transfer without tax consequences.
- You can close an HSA and open a new one with a different provider, as long as you don't have two open simultaneously.
- If you lose HSA coverage mid-year (for example, by switching to a non-HSA health plan), you can't contribute for the rest of that year, but you keep the money already in the account.
What happens if you accidentally open two HSAs
If you open a second HSA while your first one is still active, both accounts are legal — but your contributions to the second one are not. The IRS considers any contributions beyond the annual limit (which is $4,150 for individual coverage and $8,300 for family coverage in 2024, though these amounts change yearly) as excess contributions.
Excess contributions are taxed twice: once as income when you withdraw them, and again as a 6% penalty tax on the amount that sits in the account each year. So if you contributed $2,000 to a second HSA by mistake, you'd owe income tax on that $2,000 plus a 6% penalty. If you don't catch it and withdraw the money the next year, you'd owe another 6% penalty on whatever remained.
The fix is straightforward: contact the HSA provider for the second account and ask them to return the excess contributions. They can do this retroactively, and if you act quickly (ideally before you file taxes), you can avoid the penalties. The IRS Form 8889 is where you report HSA contributions and excess amounts to the IRS, so if you've made a mistake, correcting it on that form is important.
Moving money between HSAs without penalties
If you want to switch from one HSA provider to another — perhaps because your employer changed benefits administrators, or you found a provider with lower fees — you can move your balance without losing any money to taxes or penalties. This is called a direct trustee-to-trustee transfer.
Here's how it works: you contact your new HSA provider and ask them to initiate the transfer. They'll request your account information from the old provider and move the money directly from one account to the other. You never touch the money yourself, which is why the IRS doesn't treat it as a withdrawal. The entire balance moves tax-free, and you can do this as often as you want.
The alternative — withdrawing the money yourself and depositing it into a new HSA — is legal but riskier. You have 60 days to redeposit the money, or it counts as a taxable withdrawal. If you miss that window, you'll owe income tax on the amount, and if you're under 65, you'll also owe a 20% penalty. A direct transfer avoids this risk entirely.
Changing HSA providers when your employer switches administrators
Many people have HSAs through their employer's benefits plan. If your employer switches to a different HSA provider or administrator, you may be required to move your account. This is not your choice — it's a business decision between your employer and the provider — but it's not a penalty situation either.
When this happens, your employer's benefits team will usually handle the transition and notify you of the new provider's details. You'll receive information about how to access your account with the new provider, and your balance will transfer over. If you have questions about the move, your HR or benefits department is the first place to ask, since they arranged it.
If you have a personal HSA (one you opened on your own, not through an employer), you're free to switch providers whenever you want. Some people do this to find lower fees, better investment options, or a provider with a more user-friendly app or website.
What happens to your HSA if you change health plans mid-year
Your ability to contribute to an HSA depends on whether you're enrolled in a High Deductible Health Plan (HDHP). If you switch to a different type of health plan during the year — for example, from an HDHP to a standard PPO — you can no longer contribute to your HSA for the rest of that year.
However, you keep the money already in the account. You can continue to use it to pay for may have access to medical expenses, and it will grow tax-free if you invest it. You just can't add new contributions until you re-enroll in an HDHP (which might be during the next open enrollment period, or if you have a may have access to life event like a job change).
The reverse is also true: if you switch into an HDHP mid-year, you can start contributing to an HSA when ready, but only for the months remaining in that year. Your contribution limit is prorated based on how many months you're covered by the HDHP.
HSA rules if you're married and both have coverage
If you and your spouse both have individual HDHP coverage through separate employers, you can each have your own HSA. You're two different people, so the "one HSA per person per year" rule means you can have one each. The annual contribution limit applies to each account separately.
If you're both covered under a family HDHP plan (a single plan that covers both of you), you have a different situation. You can have only one HSA between the two of you, and the contribution limit is the family limit, not double the individual limit. You'll need to decide who owns the account, though either spouse can contribute to it and either can use it to pay for the other's medical expenses.
Some couples open the account in one person's name and then add the other as an authorized user, while others keep it in one name only. The IRS doesn't require a specific arrangement — it just requires that there be one account, not two, for a family plan.
Frequently Asked Questions
Can I have one HSA with my employer and another one on my own?
No. The rule is one HSA per person per year, regardless of where it comes from. If your employer offers an HSA and you open a personal one elsewhere, you're overfunding and will owe penalties on the excess. If you want a personal HSA, you must close or not use the employer one.
What if I inherit someone else's HSA?
If a spouse inherits an HSA, they can treat it as their own and continue using it normally. If a non-spouse inherits an HSA, the rules are different — the account is no longer an HSA, and the beneficiary owes income tax on the balance. This is a complex situation, so consulting a tax professional is wise.
Can I have an HSA if I'm on Medicare?
Once you enroll in Medicare, you're no longer may be able to access to contribute to an HSA, because Medicare is not an HDHP. You can keep the money in your existing HSA and use it for may have access to expenses, but you can't add new contributions. If you haven't enrolled in Medicare yet, you can continue contributing until the month you enroll.
Do I need to close my old HSA before opening a new one?
Technically, you don't have to formally close it, but you should. If you leave it open and accidentally contribute to both, you'll trigger the excess contribution penalties. The safest approach is to do a direct transfer of your balance to the new account, then close the old one in writing.
What if two different employers both tried to set up HSAs for me?
Contact both employers' benefits departments when ready and let them know you can have only one. One of the accounts will need to be closed or not funded. Your employers' HR teams deal with this occasionally and will know how to handle it. Don't wait — the sooner you fix it, the easier it is to undo.