UNDERSTANDING HEALTH INSURANCE | HSA vs. FSA: Clearing up the confusion before your money disappears

Many people set aside money for health expenses through FSAs (Flexible Spending Accounts) and HSAs (Health Savings Accounts). But confusion about how these accounts work is common — and it can cost you.

If you've ever rushed to spend your FSA dollars before the deadline or wondered what happens to your HSA balance at year's end, you're not alone. Let's break down the differences in plain language, so you can make the most of your health dollars.

What's the Big Difference?

Both FSAs and HSAs help you pay for qualified medical expenses using pre-tax dollars. That means you save money by reducing your taxable income. But they work very differently.

Here's a quick comparison:

Who can use it?

- FSA: Anyone whose employer offers it

- HSA: Only people with a qualified high-deductible health plan (HDHP)

Do funds roll over?

- FSA: Usually no (some plans allow a small rollover or grace period)

- HSA: Yes, funds roll over year to year

Can you invest the money?

- FSA: No

- HSA: Yes, once you reach a certain balance

Is it portable?

- FSA: No, it's tied to your employer

- HSA: Yes, it's yours even if you change jobs

Contribution limits (2026)

- FSA: Up to $3,400

- HSA: Up to $4,400 for individuals, $8,750 for families

The FSA 'Use It or Lose It' Trap

FSAs are great for predictable expenses — like prescriptions, glasses, or regular doctor visits. But they come with a catch: most FSA funds expire at the end of the plan year. If you don't use the money, you lose it.

Some employers offer a short grace period or allow you to roll over a small amount. For 2026, the IRS allows up to $680 to roll over into the next year if your employer's plan includes that option. But the bulk of unused funds can still vanish — so it's important to plan and track your spending.

Example: Jasmine, who works for a health system contributes $2,000 to her FSA but only spends $1,200 by December. Her employer allows a $680 rollover, so she loses $120. That's money she earned — but didn't get to use.

The HSA Advantage: Save Now, Spend Later

HSAs are more flexible and powerful. If you have a qualifying high-deductible health plan, you can contribute to an HSA and use the money anytime — for eligible medical expenses now or in the future.

Even better? The money rolls over year after year. You can even invest it, like a retirement account, and let it grow tax-free making them a valuable tool for future financial planning.

Example: Carlos, a small business owner, contributes $3,000 to his HSA in 2025 but only spends $500. The remaining $2,500 stays in his account and earns interest. Over time, he builds a health savings cushion for future needs — even into retirement.

Common Misunderstandings

Here are a few myths we hear often:

- "I have an HSA, but I thought I had to spend it all this year." Nope, HSA funds are yours to keep. No deadline, no expiration.

- "I didn't use my FSA, but I'll get it back next year." Unfortunately, unused FSA funds usually don't come back. Check your plan's rules.

- "I can't have both an HSA and FSA." The IRS generally prohibits contributing to a standard FSA and an HSA in the same year. But you can have a limited-purpose FSA (for dental and vision) alongside an HSA.

Tips to Maximize Your Health Dollars

- Know your plan type. If you're on a high-deductible health plan, consider opening an HSA.

- Track your expenses. Use apps or spreadsheets to monitor spending and avoid surprises.

- Plan your FSA contributions carefully. Estimate your yearly costs to avoid over-contributing.

- Use your HSA strategically. Pay out-of-pocket for smaller, routine medical costs now and let your HSA grow for future expenses.

Final Thought

Health care costs can be unpredictable — but your savings strategy doesn't have to be. Understanding the difference between FSAs and HSAs helps you make smarter choices, avoid waste, and build financial confidence.

Whether you're planning for next year's expenses or thinking long term, your health dollars deserve clarity. And you deserve to keep every penny you've set aside.

Kuchinki is a Missouri Native and president of the Medica Market in St. Louis. In his monthly column, he aims to share insights to help readers better understand and navigate their health insurance experience. Medica is a nonprofit health insurance company with a new hub in St. Louis, serving communities across the Midwest.