By 
Choose an HSA if you are eligible and want money that can roll over, stay with you when you change jobs, and potentially be invested for future medical expenses. Choose a healthcare FSA if your employer offers one, you are not HSA-eligible, or you want to pay predictable medical costs this year with pre-tax money.
For 2026, the HSA contribution limit is $4,400 for self-only coverage and $8,750 for family coverage. The healthcare FSA employee salary-reduction limit is $3,400. If an FSA plan allows unused money to carry over, the maximum 2026 carryover is $680. (irs.gov) (irs.gov)
Neither account is automatically better for everyone. The biggest difference is that an HSA is your account, while an FSA is an employer-sponsored benefit tied to a plan year.
Key takeaways
- 2026 HSA limit: $4,400 for self-only coverage or $8,750 for family coverage.
- HSA catch-up: Eligible people age 55 or older can generally contribute an additional $1,000.
- 2026 healthcare FSA limit: $3,400 in employee salary-reduction contributions.
- 2026 FSA carryover: Up to $680 if your employer’s plan offers the carryover option.
- HSA money does not expire. The balance remains yours and rolls over from year to year.
- FSA money can be forfeited. Employers may offer a carryover or grace period, but they are not required to.
- A general-purpose healthcare FSA can interfere with HSA eligibility. A limited-purpose FSA designed mainly for dental and vision can generally be paired with an HSA.
- New for 2026: Bronze and Catastrophic individual-market health plans can qualify for HSA treatment under the expanded rules. (irs.gov)
- Dependent care FSAs are separate. Their 2026 exclusion limit increased to $7,500, or $3,750 for married filing separately. (irs.gov)
HSA vs FSA at a glance
| Feature | HSA | Healthcare FSA |
|---|---|---|
| 2026 employee contribution limit | $4,400 self-only / $8,750 family | $3,400 salary reduction |
| Age 55+ catch-up | $1,000 | None |
| Money rolls over | Yes, all of it | Only if employer offers allowed carryover |
| 2026 maximum carryover | Not applicable | $680 |
| Grace period | Not needed | Employer may offer up to 2½ months instead of carryover |
| Can potentially invest balance | Yes, depending on provider | No |
| Portable when changing jobs | Yes | Generally no |
| Who offers it | Employer or individual HSA provider | Employer |
| Need qualifying health coverage to contribute | Yes | No HSA-style coverage requirement |
| Qualified medical withdrawals | Tax-free | Tax-free reimbursements |
| Non-medical use | Allowed, but tax/penalty rules apply | Generally not allowed |
| Can pair with HSA? | Not applicable | Limited-purpose or certain compatible FSAs can |
One important detail: the $3,400 healthcare FSA limit applies to employee salary reductions. An employer may structure additional contributions under the tax rules, so do not assume $3,400 is necessarily the total amount that could ever be available through a particular employer plan. (irs.gov)
What is an HSA?
A health savings account is a tax-advantaged account used for qualified medical expenses.
Unlike an FSA, an HSA belongs to you. Changing employers does not make you lose the balance, and unused money carries forward indefinitely.
To make new HSA contributions, you must be an HSA-eligible individual. Under the general rules, that means you must have qualifying health coverage, cannot have disqualifying additional coverage, cannot be enrolled in Medicare, and cannot be eligible to be claimed as someone else’s tax dependent. (irs.gov)
Eligibility is generally determined month by month, so the statement that you must have qualifying coverage “for the entire contribution period” is too broad. Special rules, including the last-month rule, can also affect how much someone who becomes eligible during the year may contribute.
HSA eligibility expanded in 2026
The 2026 rules are broader than older HSA guides suggest.
Beginning January 1, 2026, Bronze and Catastrophic health insurance plans are treated as HSA-compatible under the new law, including qualifying plans in the individual market. The law also expanded HSA treatment for certain direct primary care arrangements. (irs.gov)
So do not assume that a plan fails HSA eligibility simply because it does not look like the traditional HDHP you remember from previous years.
For plans using the traditional HDHP rules, the IRS set the 2026 minimum deductible at $1,700 for self-only coverage and $3,400 for family coverage, with maximum qualifying out-of-pocket expenses of $8,500 and $17,000 respectively. (irs.gov)
Always check whether the specific plan is identified as HSA-compatible before contributing.
What is a healthcare FSA?
A healthcare flexible spending arrangement is an employer-sponsored benefit that lets eligible employees use pre-tax compensation for qualified healthcare expenses.
Unlike an HSA, you generally cannot go to a bank or brokerage and independently open your own healthcare FSA. Your employer has to offer the benefit.
You choose an annual contribution during enrollment, and the amount is generally deducted from your pay throughout the plan year.
Healthcare FSAs also have an important cash-flow advantage: under FSA rules, the elected annual amount is generally available for eligible reimbursement during the coverage period even before you have contributed the entire amount through payroll.
The trade-off is that the money is not a long-term personal savings account.
Unused FSA funds can be forfeited unless the employer’s plan includes one of the IRS-permitted protections.
What are the HSA and FSA limits for 2026?
Here are the confirmed federal limits:
| Account | 2026 limit |
|---|---|
| HSA, self-only coverage | $4,400 |
| HSA, family coverage | $8,750 |
| HSA catch-up, age 55+ | +$1,000 |
| Healthcare FSA employee salary reduction | $3,400 |
| Maximum healthcare FSA carryover, if offered | $680 |
| Dependent care FSA exclusion | $7,500 |
| Dependent care FSA, married filing separately | $3,750 |
The IRS confirmed the $4,400 and $8,750 HSA limits in Revenue Procedure 2025-19. (irs.gov)
The IRS later confirmed the $3,400 healthcare FSA salary-reduction limit and $680 maximum carryover for plan years beginning in 2026. (irs.gov)
The dependent care FSA limit is different because it covers qualifying dependent-care expenses rather than healthcare. Beginning in 2026, that limit increased to $7,500, or $3,750 for married taxpayers filing separately. (irs.gov)
How are HSA contributions taxed?
HSAs can provide several federal tax advantages, but the exact treatment depends on how the money gets into the account.
If you contribute through an employer’s cafeteria plan, qualifying HSA contributions are generally excluded from federal taxable wages and can also avoid Social Security and Medicare taxes.
If you contribute directly to your HSA outside payroll, you may generally claim an HSA deduction on your federal income tax return if eligible. But that does not retroactively erase payroll taxes already paid on the income.
Employer HSA contributions also count toward your annual HSA contribution limit. For example, if you have self-only coverage and your employer contributes $1,000 in 2026, that contribution reduces the remaining amount you can generally contribute within the $4,400 limit. (irs.gov)
Qualified HSA distributions used for eligible medical expenses are generally tax-free.
If the balance is invested, earnings can also grow inside the HSA without current federal income tax.
How are FSA contributions taxed?
Healthcare FSA salary reductions are generally made through an employer cafeteria plan with pre-tax dollars.
That can lower federal taxable wages and, in many cases, Social Security and Medicare taxable wages as well.
Qualified reimbursements from the FSA are generally tax-free.
But the FSA is designed for healthcare spending rather than long-term accumulation. You cannot leave the balance invested for decades the way you potentially can with an HSA.
Does HSA money expire?
No.
Unused HSA funds stay in the account from year to year. There is no federal use-it-or-lose-it rule.
If you leave your job, the HSA stays yours.
You can also continue spending existing HSA funds on qualified medical expenses even after you are no longer eligible to make new contributions.
That distinction matters after Medicare enrollment. Once you are enrolled in Medicare, you generally can no longer make HSA contributions, but you do not lose the money already accumulated in the account. (irs.gov)
What happens to unused FSA money?
Healthcare FSAs generally operate under a use-it-or-lose-it rule, but your employer may choose to soften that rule.
For 2026 plan years, an employer may offer a carryover of up to $680 into the following plan year. (irs.gov)
Alternatively, a plan may offer a grace period of up to 2½ months after the end of the plan year to incur eligible expenses.
Employers generally may offer the permitted carryover or the grace-period option, not both, and they are not required to offer either.
That is why you should check your employer’s Summary Plan Description before choosing your FSA election. Do not automatically contribute the maximum if you are not confident you will use it.
Can you have an HSA and FSA at the same time?
Sometimes.
The problem is not the letters “FSA.” The problem is whether the other plan gives you medical coverage that makes you ineligible to contribute to an HSA.
A general-purpose healthcare FSA that can reimburse ordinary medical expenses before the HSA deductible is met generally makes you ineligible to contribute to an HSA.
That can even matter when the FSA belongs to your spouse if the spouse’s FSA can reimburse your medical expenses.
However, IRS rules allow certain compatible arrangements, including a limited-purpose FSA, which typically focuses on dental and vision expenses, and certain post-deductible arrangements. (irs.gov)
So a common combination is:
HSA for general qualified medical expenses + limited-purpose FSA for eligible dental and vision expenses.
If you plan to use both, confirm that the employer specifically identifies the FSA as HSA-compatible. Do not assume every dental or vision benefit automatically qualifies.
What expenses can an HSA or FSA pay for?
The two accounts overlap heavily in the medical expenses they can cover.
Common qualified expenses can include:
- deductibles
- copays and coinsurance
- prescription medications
- many over-the-counter medicines
- menstrual care products
- dental treatment
- orthodontia
- eye exams
- prescription glasses and contact lenses
- hearing aids
- qualifying mental health treatment
IRS Publication 502 provides the broader rules for medical expenses, while Publication 969 explains how those rules interact with HSAs and FSAs.
But the accounts are not identical.
HSA rules for health insurance premiums
Most ordinary health insurance premiums are not qualified HSA medical expenses.
Important exceptions can include certain:
- COBRA continuation premiums
- health coverage premiums while receiving unemployment compensation
- qualified long-term care insurance premiums, subject to limits
- Medicare and certain other health coverage premiums after age 65
Medigap premiums generally do not qualify for the special Medicare-premium HSA treatment. (irs.gov)
That is why it is safer to check the specific expense instead of assuming everything labeled “healthcare” qualifies.
What happens if you use HSA money for something non-medical?
Before age 65, a nonqualified HSA distribution is generally included in taxable income and subject to an additional 20% tax unless an exception applies.
After age 65, the 20% additional tax generally no longer applies.
You can therefore withdraw HSA money for non-medical purposes after 65, but the distribution is generally taxable as ordinary income. Qualified medical withdrawals can remain tax-free.
This is one reason an HSA can play a secondary role in retirement planning, although its primary purpose remains paying qualified healthcare expenses.
Can an HSA be invested?
Potentially, yes.
Many HSA providers let account owners invest part or all of their balances in mutual funds or other investment options.
But there is no universal rule that says you must first reach one specific investment threshold. The available investments and any required cash balance depend on the HSA custodian or provider.
Some providers require you to keep a minimum amount in cash before investing. Others do not.
Compare HSA account fees, cash yields, investment expenses, and investment minimums rather than assuming every HSA works the same way.
Can self-employed people use an HSA or FSA?
A self-employed person can establish and contribute to an HSA if they meet the HSA eligibility rules.
A traditional healthcare FSA is different because it is generally offered through an employer cafeteria plan for employees.
That makes the HSA especially relevant for freelancers and sole proprietors who buy qualifying health insurance but do not have access to an employer healthcare FSA.
If you employ workers or operate through a more complex business structure, benefit-plan eligibility can become more complicated, so check the tax and plan rules that apply to your business rather than relying solely on a generic “self-employed” label.
HSA or FSA: which one should you choose?
Choose an HSA if:
- you are eligible to contribute
- you want unused money to roll over indefinitely
- you want the account to stay with you after changing jobs
- you may invest part of the balance
- you want to build money for future healthcare expenses
- your employer contributes money to the HSA
An HSA is especially attractive when you can afford to leave some of the balance untouched instead of spending every contribution immediately.
Choose a healthcare FSA if:
- you are not HSA-eligible
- your employer offers an FSA
- you expect predictable medical expenses during the plan year
- you want immediate access to your annual FSA election for eligible reimbursements
- your employer contributes enough to make the benefit attractive
The use-it-or-lose-it risk means the best FSA contribution is not necessarily the maximum contribution. Estimate the expenses you are reasonably confident you will incur.
Consider an HSA plus limited-purpose FSA if:
Your employer offers an HSA-compatible limited-purpose FSA and you expect meaningful dental or vision expenses.
This combination can let you reserve HSA money for other qualified healthcare costs or longer-term savings while paying eligible dental and vision expenses through the FSA.
For the insurance decision behind HSA eligibility, see our HDHP + HSA vs PPO guide.
For the bigger enrollment decision, see how to choose a health plan at open enrollment and our Open Enrollment guide.
FAQ
What is the HSA contribution limit for 2026?
The 2026 HSA contribution limit is $4,400 for self-only coverage and $8,750 for family coverage. Eligible people age 55 or older can generally contribute another $1,000. Employer contributions count toward the regular annual limit. (irs.gov)
What is the healthcare FSA limit for 2026?
The maximum employee salary-reduction contribution to a healthcare FSA for plan years beginning in 2026 is $3,400. An employer can set a lower plan limit. (irs.gov)
How much FSA money can roll over from 2026?
If the employer’s healthcare FSA offers the carryover option, the maximum permitted carryover from a plan year beginning in 2026 is $680. Employers do not have to offer a carryover. (irs.gov)
Is an HSA better than an FSA?
An HSA is usually stronger for long-term saving because the balance rolls over, belongs to you, and can potentially be invested. An FSA can be better when you are not HSA-eligible or have predictable current-year healthcare expenses you want to pay with pre-tax dollars.
Do I lose my HSA if I change jobs?
No. An HSA belongs to you and remains yours after you leave an employer. You can continue using the existing balance for qualified medical expenses even if your new coverage no longer allows new HSA contributions.
Can I have both an HSA and an FSA?
You generally cannot contribute to an HSA while covered by a general-purpose healthcare FSA that can reimburse your medical expenses before the applicable deductible. An HSA-compatible limited-purpose FSA or certain post-deductible FSAs can generally be used alongside an HSA. (irs.gov)
What is the dependent care FSA limit for 2026?
The dependent care assistance exclusion increased to $7,500 for 2026, or $3,750 for married taxpayers filing separately. This is separate from the $3,400 healthcare FSA limit. (irs.gov)
Do HSA funds expire?
No. Unused HSA money carries forward from year to year without a federal expiration rule.
Can I use HSA money after age 65?
Yes. Qualified medical distributions can remain tax-free. Non-medical withdrawals after age 65 are generally subject to ordinary income tax but no longer face the HSA’s additional 20% tax.
Bottom line
If you are eligible for an HSA, it is usually the stronger account for long-term healthcare saving because your money rolls over, stays with you, and can potentially be invested. But that does not make an FSA a bad choice.
A healthcare FSA can be very useful when you are not HSA-eligible or know you will have medical expenses during the current plan year.
For 2026, remember the correct numbers:
HSA: $4,400 self-only or $8,750 family.
Healthcare FSA: $3,400 employee salary-reduction limit.
FSA carryover: up to $680 if your plan offers it.
And if your employer gives you the option of combining an HSA with a limited-purpose FSA, check the plan terms carefully. That combination can be useful, but a regular general-purpose FSA can make you ineligible to contribute to the HSA.
This article is for educational and informational purposes only and is not tax, financial, medical, or legal advice. HSA eligibility, employer plan terms, FSA carryover rules, qualified expenses, and tax treatment can depend on your situation. Check your current plan documents and IRS guidance before making contributions or changing benefits.
Disclosure: Some links on this page may be affiliate links. We may earn a commission at no additional cost to you if you open an account through them. Compensation does not influence our editorial recommendations. See our full disclosure..
