FSA Contribution Calculator

About the FSA Contribution Calculator

A Flexible Spending Account (FSA) allows employees to set aside pre-tax dollars for eligible healthcare or dependent care expenses. Unlike HSAs, FSAs are use-it-or-lose-it accounts—funds not spent by the plan deadline may be forfeited, making accurate contribution planning essential.

For 2026, the IRS caps Healthcare FSA contributions at $3,200 per employee, with employers permitted to offer a $640 carryover or a 2.5-month grace period. The Dependent Care FSA limit is $5,000 for married filing jointly ($2,500 for married filing separately). These accounts reduce taxable income dollar-for-dollar, generating meaningful savings across federal income tax, state income tax, and FICA.

This FSA Contribution Calculator helps employees estimate the optimal contribution amount based on anticipated expenses, view per-paycheck deduction amounts, and calculate total annual tax savings. HR professionals can use it during open enrollment counseling to demonstrate the financial benefit of FSA participation and improve enrollment rates.

When This Page Helps

Over-contributing to an FSA wastes money through forfeiture, while under-contributing leaves tax savings on the table. This calculator balances both risks by showing the tax benefit of each contribution level alongside per-paycheck costs, helping employees set the right amount based on their actual expected expenses.

How to Use the Inputs

1. Select the FSA type: Healthcare FSA or Dependent Care FSA.
2. Enter your planned annual contribution amount.
3. Enter your combined federal and state marginal tax rate.
4. Enter the number of pay periods per year.
5. Review total tax savings and per-paycheck deduction amounts.
6. Adjust the contribution to balance tax savings against forfeiture risk.

Example Calculation

Tips & Best Practices

• Estimate known recurring expenses (prescriptions, copays, daycare) to set a safe baseline contribution.
• Check whether your employer offers a carryover provision ($640 max) or grace period before assuming use-it-or-lose-it.
• Healthcare FSA funds can cover dental, vision, and many OTC items since the CARES Act expansion.
• Dependent Care FSA is separate from the Child and Dependent Care Tax Credit—compare which benefits you more.
• You cannot change your FSA election mid-year unless you have a qualifying life event.
• FICA savings (7.65%) apply on top of income tax savings, boosting the total benefit significantly.

Healthcare FSA vs. Dependent Care FSA

These two accounts serve different purposes with separate limits. A Healthcare FSA covers medical, dental, and vision expenses for the employee and dependents. A Dependent Care FSA covers childcare and elder care costs that enable the employee (and spouse) to work. You can contribute to both simultaneously up to each account's respective limit.

Maximizing FSA Value Without Forfeiture Risk

The fear of losing unused funds prevents many employees from enrolling or contributing the maximum. Start by totaling predictable annual expenses: monthly prescriptions, planned dental work, annual eye exams, and regular copays. Add a small buffer for unexpected needs. If your employer offers a $640 carryover, you can contribute more aggressively knowing you have a safety cushion.

FSA Administration for HR Teams

Employers benefit from FSA participation because employee contributions reduce the employer's share of FICA taxes. For every dollar employees contribute pre-tax, the employer saves 7.65% in matching FICA. Communicating this mutual benefit during open enrollment can increase participation rates and improve employee satisfaction with the benefits package.

Frequently Asked Questions

• What is the 2026 Healthcare FSA limit?

  The IRS sets the Healthcare FSA contribution limit at $3,200 per employee for 2026. Employers may allow up to $640 in unused funds to carry over to the following plan year as an alternative to the grace period.

• What is the Dependent Care FSA limit?

  The annual Dependent Care FSA limit is $5,000 for married couples filing jointly or single filers, and $2,500 for married filing separately. This covers expenses like daycare, preschool, and summer day camps for children under 13.

• What happens to unused FSA funds?

  Unless your employer offers a carryover (up to $640) or a 2.5-month grace period, unused funds are forfeited at the end of the plan year. Employers cannot offer both a carryover and a grace period simultaneously.

• Can I have both an HSA and an FSA?

  Generally, you cannot have a traditional Healthcare FSA and an HSA simultaneously. However, you can pair an HSA with a Limited Purpose FSA (LP-FSA) that covers only dental and vision expenses, or a Dependent Care FSA.

• Do FSA contributions reduce FICA taxes?

  Yes. Because FSA contributions are deducted pre-tax from payroll, they reduce wages subject to both income tax and FICA (Social Security + Medicare), saving an additional 7.65% for most employees.

• Can I change my FSA election mid-year?

  FSA elections are locked for the plan year unless you experience a qualifying life event such as marriage, birth of a child, divorce, or loss of other coverage. Check your plan document for specific qualifying events.

• What expenses qualify for Healthcare FSA?

  Eligible expenses include doctor copays, prescription drugs, dental work, vision care, OTC medications, menstrual products, and certain medical equipment. The IRS publishes a complete list in Publication 502.

• Is Dependent Care FSA better than the tax credit?

  For most families in higher tax brackets, the DCFSA provides larger savings because it reduces taxable income dollar-for-dollar. Lower-income families may benefit more from the Child and Dependent Care Tax Credit, which offers a percentage-based credit.