30 HSA Questions We Asked Before Opening Our First HSA
- Gin
- Aug 7
- 10 min read
Last week, I explained why my wife and I decided an Health Savings Account (HSA) paired with a high-deductible health plan made sense for our early retirement strategy. Once we made that decision, though, I realized I still had a long list of questions.
Some were simple. Others sent me down rabbit holes through IRS publications and insurance websites. I wanted one place that answered everything.
If you're considering opening your first HSA, these are the exact questions I researched before opening ours.
This FAQ covers eligibility, contributions, investments, qualified expenses, married couples, and retirement.
Need a quick refresher? An HSA is a tax-advantaged account for people enrolled in an HSA-eligible High-Deductible Health Plan (HDHP). Like a Flexible Spending Account (FSA), the money in the account can be used for qualified medical expenses.
Unlike a Flexible Spending Account (FSA), the money never expires, can be invested for decades, and remains yours even if you change jobs or insurance.
GETTING STARTED (6 QUESTIONS)
Before worrying about contribution limits or investments, you first need to know whether you're eligible and if an HDHP makes sense for you. These questions cover the basics.
What are the eligibility requirements for an HSA?
In addition to enrolling in an HSA-eligible HDHP, there are a few other requirements as of 2026:
Cannot have a general-purpose FSA
Cannot be covered by any other non-HDHP plan, even as secondary insurance
Cannot be enrolled in Medicare (Part A or B) or Medicaid
Cannot be claimed as a dependent on someone else’s tax return
What counts as an HDHP?
This is an important question because an High-Deductible Health Plan isn’t for everyone.
For a health plan to be considered an HDHP, it must meet the minimum deductible and maximum out-of-pocket limit set by the IRS.
A deductible is the amount you are responsible for paying before insurance starts to share some of the costs. Fortunately, the deductible doesn’t apply to preventive care.
The out-of-pocket-maximum is the most you will ever pay out of pocket in a calendar year. After that maximum is met, insurance pays 100% of covered medical expenses.
By definition, High-Deductible Health Plans have higher deductibles than other plans in exchange for lower monthly premiums. So when considering an HDHP, ask yourself if you’re financially able to pay the deductible out-of-pocket before insurance kicks in.
And remember, even once insurance kicks in, it won’t cover 100% of expenses until you meet the out-of-pocket maximum.
Plan Year | Minimum Deductible | Out-of-Pocket Maximum |
2026 (Individual) | $1,700 | $8,500 |
2026 (Family) | $3,400 | $17,000 |
2027 (Individual) | $1,750 | $8,700 |
2027 (Family) | $3,500 | $17,400 |
Do HDHPs cover preventive care?
Yes. By law, HDHPs cover 100% of preventive care costs when seeing an in-network doctor. This includes routine checkups, vaccinations, and screenings.
What is single coverage versus family coverage?
HSA contribution limits for the year depend on whether your health plan is individual or family coverage. Individual coverage is a plan that covers only one person. Family coverage covers the primary account holder and at least one dependent, like your child or spouse.
When can I open an HSA?
An Health Savings Account can be opened anytime after first enrolling in an High-Deductible Health Plan because proof of enrollment is required to open an HSA.
How do I open an HSA account?
If you're opening an HSA on your own, you can choose from specialized HSA providers like Optum Bank or brokerages like Fidelity. If your employer offers an HSA, that's another option.
I’ve found that it does pay to shop around. Not all HSAs are built the same. For example, some HSAs may charge fees, and others may have limited investment options.
When opening an HSA, you will be required to upload proof that you’re enrolled in an HSA-eligible HDHP.
CONTRIBUTIONS (6 QUESTIONS)
Once you've confirmed you're eligible, the next step is funding your Health Savings Account. Here's how contribution limits work, including a few rules that surprised me.
How much can be contributed to an HSA per year?
How much you can contribute to an HSA depends on whether your health plan covers just you or at least one additional person.
Plan Year | Individual Coverage | Family Coverage |
2026 | $4,400 | $8,750 |
2027 | $4,500 | $9,000 |
How much can I contribute if I become HSA-eligible mid-year?
I was curious about this because our COBRA coverage expires at the end of October and we’re considering an HDHP with an HSA as the next step.
HSAs have something called the Last-Month Rule, which lets you make the full annual HSA contribution if you meet two requirements:
You must be enrolled in an HSA-eligible HDHP by no later than December 1
You must remain on an eligible HDHP for a 12-month testing period that starts on December 1 of the contribution year and runs through December 31 of the following year
It’s not required to use the Last-Month Rule. Contributions can also be prorated based on the number of months you are covered by an eligible HDHP as of the first of the month.
Do I have to contribute every month?
No. You can choose when to contribute up until April 15 of the following year, just like IRAs.
In fact, we’ll probably wait until the last minute to contribute.
We plan to use an HSA to reduce our Modified Adjusted Gross Income (MAGI) just enough to qualify for health care tax credits. We may not contribute the maximum, so it’s helpful for us to wait until the end of the year to see how much income we need to offset.
Can I contribute stocks or ETFs to an HSA?
I was curious about this because most of our money is invested. Selling investments incurs taxes. And since many HSAs let you invest your contributions, I was hoping to transfer my holdings without selling.
Sadly, the IRS insists only on cash contributions via check or bank transfer.
Can an HSA reduce my Adjusted Gross Income (AGI) and Modified Adjusted Gross Income (MAGI) even if I'm not employed?
Unlike FSAs, you don’t need to be earning a paycheck for HSA contributions to reduce your income. Even if you’re not employed, contributions reduce your income, the same way IRA contributions do. That's one reason HSAs can be especially powerful in early retirement.
What if I go over the contribution limit?
If you contribute more than you’re allowed, you pay a tax penalty on the overage. On top of that, you pay the penalty every year after until you correct the mistake.
MARRIED COUPLES (5 QUESTIONS)
This was easily the most confusing part of my research. HSA rules change depending on whether you have self-only or family coverage, and a spouse's health coverage can affect what you're allowed to do.
Can spouses have their own separate HSAs if they share a single health plan?
Joint HSA accounts don’t exist. Your spouse must open their own Health Savings Account if they want one. If they don’t open their own HSA, you can still use yours to pay for their medical expenses.
How do contribution limits work when both spouses have their own HSA?
HSA contribution limits are determined solely by whether your HDHP plan is individual coverage or family coverage.
Scenario A: Family coverage and both spouses have HSAsYou choose how to split the contributions. All that matters is that your combined contribution doesn’t exceed the family coverage limit.
Scenario B: Family coverage and only one spouse has an HSAThe spouse with the HSA can contribute up to the family coverage limit.
Scenario C: Each spouse has an individual-coverage HDHP and their own HSAEach spouse can contribute up to the individual coverage limit to their own HSA.
Can I open and contribute to an HSA if my spouse is ineligible?
Yes. Their ineligibility doesn’t affect your eligibility.
However, there are two situations to be careful of. They have to do with the eligibility requirements I mentioned in the beginning.
If your spouse opens a general-purpose FSA, it can disqualify you. Why? Even though you didn’t open the FSA, it still has the potential to be used to pay for your medical expenses.
You can also be disqualified if you get added to their non-HDHP plan as secondary insurance.
If being added as a dependent under my spouse's employer-provided health plan is too expensive, can I purchase my own HDHP and open an HSA?
Yes, you can. But, as mentioned above, if you get added to your spouse’s non-HDHP plan as secondary insurance, you lose your HSA eligibility.
What is the HSA catch-up contribution for people aged 55 or older?
If you turn 55 any time during a contribution year, you can contribute an additional $1,000 to your own HSA. If both spouses turn 55, each spouse can contribute an additional $1,000 to their own HSA. They must have separate HSA accounts because there are no joint HSA accounts.
It’ll be a few more years before this applies to us, but it’s great to know. Aging isn’t all bad.
MANAGING YOUR HSA (4 QUESTIONS)
Not all HSAs are created equal. Depending on the provider you choose, fees, investment options, and account features can vary quite a bit.
Can I have multiple HSAs?
Yes, you can have multiple active HSAs. Your annual contribution limit would apply collectively across all accounts.
Can I change HSA providers later?
If you find a provider with better fees or investment options, you absolutely can. You can also choose to roll over or transfer money from one HSA to the other. That HSA belongs to you.
Do HSAs have fees?
Some charge monthly maintenance fees, investing fees, or require minimum balances before you can invest. Others charge nothing at all. It's worth comparing providers before opening an account.
What can I invest my HSA in?
It depends on the HSA. Some only act more like savings accounts or have limited investment options. Others will let you invest in the same things as your investment brokerage—stocks, bonds, funds, CDs, ETFs, etc.
Another thing to note is that certain HSAs require a minimum account balance to invest.
USING YOUR HSA (6 QUESTIONS)
An HSA is only valuable if you understand how and when you can spend the money. These questions cover qualified expenses, reimbursements, and common mistakes to avoid.
What can HSA funds be used to pay for?
If it diagnoses, treats, or prevents an illness or condition (medical, dental, vision, mental), then you can probably pay for it with HSA funds, provided the expenses were incurred after the HSA was opened.
Qualified expenses include copays, prescription and over-the-counter medications, and first aid kits. It even includes contraceptives and feminine care.
To check if a specific item or service is HSA-eligible, you can check retailers’ sites for “HSA-eligible” items or your HSA custodian’s portal.
Can I use an HSA to pay for insurance premiums?
Wouldn’t that be awesome if you could? But generally, it’s not allowed. There are a few exceptions—such as COBRA premiums, certain unemployment situations, and Medicare premiums after age 65—but for most people, regular health insurance premiums aren't HSA-qualified
Can I use my HSA to pay for my spouse's expenses?
Yes. You can use your HSA to pay for your spouse’s medical expenses even if they’re covered by a different plan. They don’t even need to be enrolled in an HDHP.
How do I pay for medical expenses with an HSA?
You can pay using the debit card that comes with the HSA. Or you can pay out-of-pocket and reimburse yourself later.
I like the second option because I can rack up points on my credit card.
How long do I have to request a reimbursement?
There’s actually no time limit to request a reimbursement, even if it’s years later, as long as you’ve kept your receipts.
This means you could pay out of pocket now and potentially rack up credit card points. Meanwhile, you invest your contributions and let them grow tax-free. Then, years later, assuming your investment grew, you reimburse yourself with the profits.
What happens if I use funds for a non-qualified expense?
If the IRS determines the withdrawal wasn't for a qualified expense, you’ll pay a 20% penalty on top of taxes. Best to be careful if buying a mix of qualified and non-qualified items.
WHAT HAPPENS LATER? (3 QUESTIONS)
An HSA isn't just useful while you're working. These final questions cover what happens if your insurance changes, you reach retirement age, or the account eventually becomes part of your estate.
What happens to my HSA if I no longer have an HSA-eligible health plan?
If you go off your HSA-eligible health plan, you don’t lose any of the money that’s left in the account. You can still use it to pay for qualified medical expenses and invest the funds. The only thing you can’t do is make contributions to the HSA.
What happens to the account at age 65?
When you reach age 65, you’re no longer required to use HSA funds exclusively for medical expenses. The money in the account can be withdrawn for any reason, penalty-free. You will, however, pay income tax on the withdrawals, the same as when you withdraw from retirement accounts.
What happens to the HSA when I die?
When you pass away, the balance of your Health Savings Account goes to the beneficiary (or beneficiaries) you named. If your spouse is the beneficiary, ownership of the HSA transfers to them tax-free, and the account continues as their own HSA. If the beneficiary is someone other than your spouse, the HSA is no longer treated as an HSA. The account is closed, and the beneficiary generally owes income tax on its value.
One more reason to keep your beneficiary designation up to date.
OUR TAKEAWAY
When I first started researching HSAs, I only had a few questions, and I expected to spend an hour learning the basics. Instead, the more I learned, the more “What if?” scenarios I started to think of.
Hopefully this guide saves you from spending hours opening dozens of browser tabs like I did..
For us, opening an HSA wasn't just about saving on taxes. It became another tool that makes early retirement more affordable and gives us more flexibility over the long term. That's exactly why we decided to open one.
Did I miss a question? Leave a comment below. If it's something I had to research too, I'll add it to this guide so it becomes an even better resource for future readers.
See you at the finish line!
Disclaimer: I’m not a licensed financial professional. This blog shares my personal experiences and opinions around money, investing, and early retirement. It’s for informational and educational purposes only—not financial, legal, or tax advice. Always do your own research or consult with a qualified professional before making any financial decisions.
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