Learn About FSA and HSA Savings Options

What Are FSA and HSA Accounts and How Do They Work?

Flexible Spending Accounts (FSAs) and Health Savings Accounts (HSAs) are employer-sponsored or individual savings accounts designed to help people set aside pre-tax money for medical expenses. Understanding the basic structure of these accounts is the first step in exploring whether they might fit into your financial planning.

An FSA is a benefit plan that allows workers to contribute a portion of their paycheck to a dedicated account before taxes are taken out. This means the money in the account reduces your taxable income for the year. You can then use these pre-tax dollars to pay for eligible medical, dental, and vision expenses. Your employer typically administers the FSA, and the funds are available to you throughout the plan year, which often runs from January to December, though some employers use different dates.

An HSA works differently in several important ways. An HSA is a savings account specifically designed for people enrolled in a High Deductible Health Plan (HDHP). Unlike an FSA, an HSA is portable—you own the account yourself, not your employer. The money you contribute is pre-tax, meaning it reduces your taxable income. A significant advantage of HSAs is that unused money rolls over from year to year. This means if you don't spend all your HSA funds in one year, the balance remains available for future medical expenses.

Both account types follow the "use it or lose it" concept, though HSAs handle unused funds very differently than FSAs. With an FSA, money you don't spend by the end of the plan year is generally forfeited, though many employers offer a grace period of up to 2.5 months or a limited carryover option. With an HSA, your unused balance stays in the account indefinitely, making it function more like a long-term savings vehicle.

The tax advantage is substantial. According to the IRS, contributions to FSAs and HSAs avoid federal income tax, Social Security tax, and Medicare tax. For someone in the 24% tax bracket contributing $2,500 to an FSA, this could mean saving around $600 in taxes annually. Over a career, these savings compound significantly.

Practical Takeaway: FSAs are best for people who have predictable annual medical expenses and want to reduce their taxable income immediately. HSAs suit people seeking a flexible, long-term medical savings tool that offers growth potential and portability.

FSA Details: Rules, Contribution Limits, and Common Expenses

FSAs have specific rules about how much you can contribute, what you can spend the money on, and what happens to unused funds. Knowing these details helps you determine whether an FSA fits your situation.

For 2024, the IRS allows workers to contribute up to $3,300 per year to an FSA. This limit applies per person, not per household. If both you and your spouse work and your employers offer FSAs, you each could contribute up to $3,300, for a combined household contribution of $6,600. The IRS adjusts this limit annually based on inflation, so the maximum amount may change year to year.

You must enroll in an FSA during your employer's open enrollment period, which typically occurs once per year, usually in the fall for coverage starting January 1st. However, you can enroll in an FSA outside open enrollment if you experience a qualifying life event, such as getting married, having a child, losing other health coverage, or changing jobs. Changes to your FSA elections generally cannot be made mid-year unless you have a qualifying event.

FSAs cover a wide range of medical expenses. Eligible expenses include:

• Doctor visits and office visit copays
• Prescription medications and over-the-counter medications (with a prescription)
• Dental work, including cleanings, fillings, and orthodontia
• Vision care, including eye exams, glasses, and contact lenses
• Mental health counseling and therapy
• Deductibles and coinsurance amounts
• Physical therapy and chiropractic care
• Hearing aids and related services
• Certain medical equipment, such as crutches, wheelchairs, and blood pressure monitors

Items that are generally not covered include cosmetic procedures, general health items like vitamins (unless prescribed), and over-the-counter medications without a prescription. The IRS maintains a detailed list of qualifying medical expenses that your FSA plan administrator can reference.

The "use it or lose it" rule is critical to understand. If you don't use your FSA balance by the end of the plan year, that money is forfeited. However, many employers now offer a grace period of up to 2.5 months into the following year, allowing you to spend funds from the prior year during this window. Some employers instead allow you to carry over up to $610 of unused funds (adjusted annually for inflation) into the next year. Your specific employer plan determines which option applies.

To use FSA funds, you typically receive a debit card or submit receipts and documentation to your plan administrator for reimbursement. Many FSA administrators require you to provide proof of the medical expense before reimbursing you.

Practical Takeaway: Calculate your expected medical expenses for the year before deciding how much to contribute to an FSA. Consider dental work, vision care, and prescription medications. Contributing more than you'll spend results in forfeited funds, while contributing too little means missing out on tax savings.

HSA Details: Eligibility Requirements, Contribution Limits, and Account Growth

HSAs have different rules than FSAs, particularly regarding eligibility and how your money can grow over time. These differences make HSAs appealing for long-term medical savings planning.

To open and contribute to an HSA, you must be enrolled in a High Deductible Health Plan (HDHP). The IRS defines HDHP standards based on deductible amounts and out-of-pocket maximums. For 2024, an HDHP for individual coverage has a minimum deductible of $1,600 and an out-of-pocket maximum of $3,300. For family coverage, the minimum deductible is $3,200 with an out-of-pocket maximum of $6,550. These amounts are adjusted annually. You also cannot be covered by any non-HDHP health plan, enrolled in Medicare, or claimed as a dependent on someone else's tax return.

The HSA contribution limits for 2024 are $4,150 for individual coverage and $8,300 for family coverage. These limits include contributions from both you and your employer. If you turn 55 during the year, you can make an additional catch-up contribution of $1,000. Unlike FSAs, HSAs allow contributions year-round, not just during open enrollment. If you enroll in an HDHP mid-year, you can contribute to your HSA for that period.

One of the most powerful features of HSAs is that they function like investment accounts. Unlike FSA balances, which typically sit in a non-interest-bearing account, HSA balances can be invested in mutual funds, stocks, and bonds through many HSA providers. This means your HSA can grow substantially over time. For example, someone who contributes $4,150 annually to an HSA for 30 years and invests in a balanced portfolio averaging 7% annual returns could accumulate over $800,000, depending on spending patterns and market conditions.

Another key advantage is portability. Your HSA belongs to you, not your employer. If you change jobs, retire, or lose employer health coverage, your HSA stays with you. You can continue to contribute and use the funds for medical expenses throughout your life. This makes HSAs unique among employer-sponsored benefits.

HSAs have triple tax advantages. Contributions are tax-deductible or made with pre-tax payroll deductions. The money grows tax-free if invested. And withdrawals for qualified medical expenses are tax-free. This makes HSAs exceptionally tax-efficient compared to regular savings accounts.

Unlike FSAs, HSA funds never expire. Any balance you don't spend carries over to the next year and the next, indefinitely. This flexibility means you can use HSA funds strategically, allowing balances to grow and be used years later for major medical expenses