How Much Can You Save With An FSA?

Quick answer

• FSAs can significantly reduce your taxable income, lowering your overall tax bill.
• Savings depend on your tax bracket and the amount you contribute.
• Contributions are typically made pre-tax, meaning the money is deducted from your paycheck before federal, state, and FICA taxes are calculated.
• You can save hundreds or even thousands of dollars annually, depending on your contribution level.
• The exact savings can be calculated by multiplying your FSA contribution by your marginal tax rate.
• Remember that FSA funds usually expire at the end of the plan year, so use them wisely.

Who this is for

• Employees who have access to a Flexible Spending Account (FSA) through their employer.
• Individuals looking to reduce their out-of-pocket healthcare or dependent care expenses.
• Those who want to understand the potential tax advantages of participating in an FSA.

What to check first (before you act)

Your FSA Eligibility and Plan Details

Before calculating potential savings, confirm if you are eligible for an FSA. Not all employers offer them, and there might be specific enrollment periods.

• What to check: Does your employer offer an FSA? When is the open enrollment period? What types of FSAs are available (e.g., Health FSA, Dependent Care FSA)? What are the contribution limits set by your employer and IRS guidelines?
• What “good” looks like: You have clear information about your employer’s FSA offerings, including deadlines and available options.
• Common mistake: Assuming you are eligible without confirming with your HR department or checking your benefits portal. This can lead to missed enrollment opportunities.

Your Expected Medical or Dependent Care Expenses

The amount you can save with an FSA is directly tied to how much you plan to spend on eligible expenses. FSAs are “use-it-or-lose-it” accounts, so contributing more than you’ll spend means forfeiting funds.

• What to check: List out anticipated out-of-pocket medical costs (e.g., deductibles, co-pays, prescriptions, dental, vision) or dependent care costs (e.g., daycare, after-school programs) for the upcoming plan year.
• What “good” looks like: You have a realistic estimate of your eligible expenses for the year, allowing you to determine an appropriate FSA contribution.
• Common mistake: Overestimating expenses and contributing too much, leading to lost funds at the end of the year. Conversely, underestimating and not maximizing potential tax savings is also a mistake.

Your Tax Bracket

Your savings are directly proportional to your tax bracket. The higher your marginal tax rate, the more money you save by contributing pre-tax dollars to an FSA.

• What to check: Understand your federal and state income tax brackets. You can typically find this information on the IRS website or your state’s tax authority website.
• What “good” looks like: You know your marginal tax rate, which is the rate applied to your last dollar earned.
• Common mistake: Not considering your tax bracket when assessing savings. For example, someone in a lower tax bracket will see less dollar savings than someone in a higher bracket, even with the same contribution amount.

Step-by-step (simple workflow)

1. Confirm FSA Availability and Rules

What to do: Speak with your HR department or review your employee benefits information to confirm if your employer offers an FSA and understand the specific rules, including contribution limits, eligible expenses, and rollover/grace period policies.
What “good” looks like: You have a clear understanding of your employer’s FSA plan and its parameters.
Common mistake: Assuming the rules are standard across all employers. Each plan can have unique features.

2. Estimate Eligible Expenses

What to do: Project your out-of-pocket medical or dependent care costs for the upcoming plan year. Be realistic, accounting for known appointments, potential illnesses, and ongoing care needs.
What “good” looks like: You have a well-reasoned estimate of expenses, making it easier to determine your contribution amount.
Common mistake: Guessing without careful consideration, which can lead to over or under-contributing.

3. Determine Your Contribution Amount

What to do: Based on your estimated expenses and the FSA’s annual contribution limits, decide how much you want to contribute. It’s often best to contribute close to your estimated expenses to avoid forfeiting funds.
What “good” looks like: You’ve chosen a contribution amount that aligns with your projected spending and maximizes your tax benefits without significant risk of loss.
Common mistake: Contributing the maximum allowed without considering actual needs, or contributing too little and missing out on savings.

4. Calculate Your Tax Savings

What to do: Multiply your chosen FSA contribution amount by your marginal tax rate (federal and state combined). This gives you an estimate of your annual tax savings. For example, if you contribute $2,000 and your combined marginal tax rate is 25%, you save approximately $500.
What “good” looks like: You have a clear dollar figure representing your potential tax savings.
Common mistake: Forgetting to include state taxes in your calculation, which can significantly impact your total savings.

5. Enroll During Open Enrollment

What to do: Submit your elected contribution amount during your employer’s designated open enrollment period. This is usually once a year, but exceptions may exist for qualifying life events.
What “good” looks like: Your FSA contribution is officially set and will be deducted from your paychecks.
Common mistake: Missing the enrollment deadline, which means you cannot participate until the next open enrollment period.

6. Understand Paycheck Deductions

What to do: Review your pay stubs after enrollment to ensure the correct FSA contribution amount is being deducted pre-tax.
What “good” looks like: Your pay stub accurately reflects the pre-tax deduction for your FSA.
Common mistake: Not checking pay stubs, which could mean a deduction error goes unnoticed for an extended period.

7. Track Expenses and Keep Receipts

What to do: Keep meticulous records of all eligible expenses paid for with FSA funds. You’ll need receipts to substantiate your claims when you submit them for reimbursement.
What “good” looks like: You have a well-organized system for tracking expenses and storing receipts.
Common mistake: Losing receipts or not having documentation, which can prevent you from getting reimbursed.

8. Submit Reimbursement Claims

What to do: File claims for your eligible expenses with your FSA administrator according to their procedures and deadlines.
What “good” looks like: Your claims are processed promptly and accurately.
Common mistake: Waiting too long to submit claims, potentially missing the administrator’s deadline for reimbursement.

9. Monitor Your FSA Balance

What to do: Keep an eye on your FSA balance throughout the year to ensure you are on track to use your funds.
What “good” looks like: You are aware of how much you have spent and how much remains, allowing for adjustments if needed.
Common mistake: Forgetting about your balance, leading to a large amount of unused funds near the end of the plan year.

10. Use Remaining Funds Before Year-End

What to do: If you have a significant amount left near the end of your plan year, try to use it for eligible expenses. Check your plan’s rules for any grace period or carryover options.
What “good” looks like: You’ve utilized as much of your FSA funds as possible for legitimate expenses.
Common mistake: Letting funds expire because you didn’t plan ahead or were unaware of the deadlines.

Common mistakes (and what happens if you ignore them)

Mistake	What it causes	Fix
Not enrolling during open enrollment	Inability to use pre-tax dollars for eligible expenses for the year	Be aware of enrollment periods and mark them on your calendar.
Overestimating eligible expenses	Losing unused funds at the end of the plan year	Base your contribution on a realistic assessment of recurring and anticipated costs.
Underestimating eligible expenses	Missing out on potential tax savings and paying more in taxes	Review your past spending and consider potential future needs.
Not understanding eligible expenses	Attempting to claim ineligible expenses, leading to denial of reimbursement	Carefully review the list of eligible expenses provided by your FSA administrator.
Losing receipts or documentation	Inability to get reimbursed for expenses	Implement a system for organizing and storing all expense documentation immediately.
Forgetting to use funds before the deadline	Forfeiting all unused funds (“use-it-or-lose-it”)	Monitor your balance regularly and plan purchases accordingly. Check for grace periods or carryover options.
Not checking pay stubs for correct deductions	Overpayment of taxes if deduction is incorrect	Review your pay stubs after enrollment and periodically to ensure accuracy.
Assuming FSA funds roll over indefinitely	Forfeiting unused funds if the plan doesn’t allow carryover or grace periods	Understand your specific plan’s rules regarding unused funds.
Contributing to an FSA when not using eligible services	Paying for a service you don’t need just to use the FSA funds	Prioritize using the FSA for actual, necessary expenses.
Not considering dependent care FSA options	Missing out on tax savings for childcare costs	Explore if a dependent care FSA is offered and suitable for your situation.

Decision rules (simple if/then)

• If you have predictable, recurring medical expenses like regular doctor visits or prescription refills, then contribute to a Health FSA because it allows you to set aside funds tax-free for these costs.
• If you have significant co-pays or deductibles, then contribute to a Health FSA because these are often eligible expenses that can be covered.
• If your employer offers a Health FSA, then review your anticipated out-of-pocket medical costs for the year to determine a suitable contribution amount because you can save on taxes.
• If you have children in daycare or other eligible dependent care programs, then consider contributing to a Dependent Care FSA because these contributions are also made pre-tax.
• If your marginal tax rate is high, then you will see a larger dollar amount saved for every dollar contributed to an FSA because more of your money is being sheltered from taxes.
• If you are prone to unexpected medical issues or have a chronic condition, then it might be wise to contribute a bit more to your Health FSA to ensure you have coverage, but be mindful of the “use-it-or-lose-it” rule.
• If your employer offers a grace period or a limited carryover for unused FSA funds, then you have more flexibility to contribute closer to the maximum without as much risk of losing money.
• If you are not sure about your exact medical expenses for the year, then err on the side of caution and contribute slightly less than the maximum to avoid forfeiting funds.
• If you are considering an FSA, then check your employer’s specific plan details regarding eligible expenses and deadlines because these can vary significantly.
• If you are self-employed, then you generally cannot contribute to an employer-sponsored FSA; explore other tax-advantaged savings options.
• If you have a high-deductible health plan (HDHP) that qualifies for a Health Savings Account (HSA), then compare the benefits of an HSA versus an FSA, as HSAs offer more flexibility and do not have a “use-it-or-lose-it” provision.
• If you are approaching the end of your FSA plan year and have a balance, then actively look for eligible expenses you can purchase to use the remaining funds before they expire.

FAQ

Q1: How much can I contribute to an FSA?

A1: The IRS sets annual limits for Health FSAs, and employers may also set their own lower limits. For Dependent Care FSAs, there are also IRS-imposed limits. Check your employer’s plan for specific details.

Q2: What happens to unused FSA funds at the end of the year?

A2: Generally, unused funds are forfeited. However, some plans offer a grace period to incur expenses or a limited carryover amount to the next plan year. You must check your specific plan documents.

Q3: How do I get reimbursed from my FSA?

A3: You typically submit a claim form along with itemized receipts for eligible expenses to your FSA administrator. Some plans offer debit cards for direct payment.

Q4: What are common eligible expenses for a Health FSA?

A4: Common expenses include co-pays, deductibles, prescription drugs, dental care, vision care, and certain medical equipment. Always verify with your plan administrator.

Q5: Can I change my FSA contribution amount mid-year?

A5: Generally, no, unless you experience a qualifying life event, such as marriage, divorce, or the birth of a child. Check with your HR department for your plan’s specific rules.

Q6: How does an FSA affect my taxes?

A6: FSA contributions are deducted from your paycheck before federal, state, and FICA taxes are calculated, effectively lowering your taxable income and thus your tax bill.

Q7: Is an FSA the same as an HSA?

A7: No. While both offer tax advantages for healthcare, Health Savings Accounts (HSAs) are typically paired with high-deductible health plans and the funds roll over year after year, remaining yours. FSAs are employer-sponsored, have stricter rules, and funds generally must be used within the plan year.

Q8: Can I use my FSA for over-the-counter medications?

A8: Since the CARES Act, many over-the-counter medications are eligible expenses for Health FSAs without a prescription. However, it’s always best to confirm with your plan administrator.

What this page does NOT cover (and where to go next)

• Specific tax laws or regulations that may change annually. Consult a tax professional for personalized advice.
• Detailed comparisons of Health Savings Accounts (HSAs) versus Flexible Spending Accounts (FSAs). Research HSA eligibility and benefits if you have a qualifying high-deductible health plan.
• Investment strategies or financial planning beyond FSA contributions. Consider consulting a financial advisor for comprehensive planning.
• Specific details of every employer’s FSA plan. Always refer to your employer’s benefits documentation or HR department for precise rules and options.
• Dependent care FSA eligibility for specific types of care or providers. Consult your plan administrator for a definitive list.