Authored by Kenji Noguchi

If you have access to a Health Savings Account (HSA) or a Flexible Spending Account (FSA) through your health benefits, you’re sitting on a real opportunity to reduce your tax bill and build a stronger financial plan. Both accounts let you set aside money for qualified medical expenses on a pre-tax basis, which means every dollar you contribute goes further than it would otherwise. 

Understanding how they each work can help you get even more out of your accounts in 2026.

If you want a side-by-side breakdown of how these accounts work and how to use them more strategically, download our HSA vs. FSA guide at the end of this article.

A Health Savings Account is a tax-advantaged account available to individuals enrolled in a High-Deductible Health Plan (HDHP). To be eligible to contribute, your health insurance plan must meet IRS criteria for an HDHP.

For 2026, an HSA-qualifying HDHP must have:

• A minimum annual deductible of $1,700 for individual coverage or $3,400 for family coverage
• Out-of-pocket maximums no higher than $8,500 (individual) or $17,000 (family)

(Source: IRS Rev. Proc. 2025-19)

One of the most valuable things about an HSA is its triple tax advantage:

1. Contributions are tax-deductible (or pre-tax if made through payroll)
2. Earnings grow tax-free
3. Withdrawals are tax-free when used for qualified medical expenses

Few financial tools offer that level of tax efficiency.

Unlike most employer benefits, HSA funds roll over each year with no deadline to use them. The account belongs to you, and many providers allow you to invest the balance once a minimum threshold is met, creating an opportunity to treat the HSA as a long-term healthcare reserve.

After age 65, funds can be used for any purpose without penalty. Non-medical withdrawals are taxed as ordinary income, similar to a traditional retirement account.

A Flexible Spending Account is an employer-sponsored benefit that lets you contribute pre-tax dollars toward qualified medical expenses. 

Unlike an HSA, eligibility is not tied to a high-deductible plan, which makes FSAs more broadly accessible.

FSA funds can be used for a wide range of qualified expenses, including co-pays, prescriptions, dental and vision care, and many over-the-counter items.

One structural advantage stands out: your full annual election is available at the start of the plan year, regardless of how much you have contributed through payroll. This can be meaningful if expenses arise early in the year.

The tradeoff is flexibility. FSAs are generally subject to a use-it-or-lose-it rule. Depending on your employer’s plan, you may be able to carry over up to $680, or you may be offered a limited grace period.

For 2026, you can contribute up to $3,400 to a health FSA.

(Source: IRS Rev. Proc. 2025-32)

HSA (Individual): $4,400

HSA (Family): $8,750

HSA Catch-Up (55+): +$1,000

Health FSA: $3,400

FSA Carryover (if offered): $680

(Sources: IRS Rev. Proc. 2025-19; IRS Rev. Proc. 2025-32)

Eligibility: An HSA requires enrollment in an HSA-qualified HDHP. An FSA is generally available through any employer-sponsored health plan.

Rollover: HSA balances roll over every year with no limit. FSA funds are subject to use-it-or-lose-it rules, with limited carryover options depending on your plan.

Portability: Your HSA belongs to you. If you change jobs or health plans, the account goes with you. An FSA is tied to your employer.

Investment opportunity: HSA funds can often be invested for long-term growth. FSA funds are not invested. 

Contribution source: Both you and your employer can contribute to an HSA. FSA contributions typically come through your payroll elections, and some employers contribute as well.

Funds availability: With an FSA, your full annual election is available on day one of your plan year. HSA funds are available as you contribute to them.

An HSA tends to be a strong fit if:

• You are enrolled in, or open to, a high-deductible health plan
• You want to build long-term savings specifically for healthcare
• You have the ability to cover current medical expenses out of pocket
• You are looking for additional tax-advantaged ways to complement retirement savings

Used intentionally, an HSA can function as both a spending account and a long-term asset.

An FSA can be a great fit if:

• You are not enrolled in an HDHP
• You have predictable, recurring medical expenses each year, such as prescriptions, contacts or glasses, or regular dental work
• You want a simple, straightforward way to reduce your taxable income for known healthcare costs

The ability to access your full election early in the year can also make planning easier when expenses are known in advance.

Possibly. You generally cannot contribute to both a standard health FSA and an HSA in the same year. However, a Limited Purpose FSA, which covers only dental and vision expenses, can be paired with an HSA. This combination lets you cover routine dental and vision costs through the FSA while preserving your HSA balance for other medical needs or long-term growth.

If both you and your spouse have access to FSAs through your respective employers, each of you can contribute up to the individual FSA limit.

Both HSAs and FSAs can play a meaningful role in a broader financial plan. The right choice depends on your health plan, your expected expenses, and how you want to approach tax efficiency over time.

For those with access to an HSA, the combination of tax treatment, rollover flexibility, and investment potential makes it one of the more powerful tools available for managing future healthcare costs.

If you’re also weighing retirement account options, see our guide to 401(k) vs. IRA or Pretax vs. Roth.

This information does not constitute legal advice. Prime Capital Financial and its associates do not provide legal advice. Individuals should consult with an attorney regarding the applicability of this information for their situations.

Advisory products and services offered by Investment Adviser Representatives through Prime Capital Investment Advisors, LLC (“PCIA”), a federally registered investment adviser. Tax planning and preparation services are offered through Prime Capital Tax Advisory. PCIA: 6201 College Blvd., Suite 150, Overland Park, KS 66211. PCIA doing business as Prime Capital Financial | Wealth | Retirement | Wellness | Family Office | Tax Advisory.