What Is a Limited-Purpose Flexible Spending Account (LPFSA)?

A Limited-Purpose Flexible Spending Account (LPFSA) is a tax-advantaged account specifically designed to cover eligible dental and vision expenses. Unlike a general Health Care Flexible Spending Account (HCFSA), which can be used for a broad range of medical expenses, an LPFSA is restricted to a limited set of healthcare costs. This type of FSA is typically available to individuals who participate in a Health Savings Account (HSA), allowing them to maximize tax benefits while maintaining HSA eligibility.

How a Limited-Purpose FSA Works

An LPFSA operates similarly to a traditional FSA. Employees contribute pre-tax dollars into the account through payroll deductions, and the funds can be used to pay for qualified dental and vision expenses. Because contributions are made with pre-tax income, participants reduce their taxable income, resulting in potential tax savings.

The primary reason for restricting LPFSA funds to dental and vision expenses is to preserve an individual’s eligibility to contribute to an HSA. IRS rules prohibit individuals from being covered by both a general-purpose FSA and an HSA at the same time, as FSAs are considered “first-dollar” coverage, which disqualifies HSA contributions. However, an LPFSA is categorized as a “limited-purpose” account, meaning it does not interfere with HSA eligibility.

Eligible Expenses

The IRS defines what qualifies as an eligible expense under an LPFSA. Common eligible expenses include:

• Dental Care: Exams, cleanings, fillings, crowns, root canals, orthodontic work (such as braces), and dentures.
• Vision Care: Eye exams, prescription glasses, contact lenses, lens solution, vision correction surgery (such as LASIK), and prescription sunglasses.

Medical expenses that are not specifically dental- or vision-related — such as doctor visits, prescriptions, hospital stays, or other general healthcare costs — cannot be reimbursed through an LPFSA.

Contribution Limits and Carryover Rules

Like a traditional FSA, the contribution limit for an LPFSA is set annually by the IRS. In 2025, the limit is $3,300 per year, but this amount is subject to change. Employers may impose lower limits, so participants should check with their benefits administrator.

Many LPFSAs operate under the “use-it-or-lose-it” rule, meaning that unused funds at the end of the plan year may be forfeited. However, some employers offer a grace period (usually up to two and a half months after the end of the plan year) or a carryover option, which allows participants to roll over a portion of unused funds into the following year. Employers decide which, if any, of these options they will allow.

Advantages of an LPFSA

An LPFSA offers several key advantages, especially for individuals who also contribute to an HSA:

1. Tax Savings: Contributions are made pre-tax, reducing taxable income and potentially lowering overall tax liability.
2. Preserved HSA Eligibility: Since an LPFSA is limited to dental and vision expenses, participants can still contribute to an HSA without violating IRS rules.
3. Immediate Access to Funds: Unlike an HSA, where contributions build up over time, LPFSA funds are available in full at the beginning of the plan year.
4. Reduced Out-of-Pocket Costs: Since many dental and vision expenses are considered elective or not fully covered by insurance, an LPFSA provides an additional way to manage costs.

LPFSA vs. General-Purpose FSA vs. HSA

Understanding the differences between an LPFSA, a general FSA, and an HSA is important for making informed benefits decisions:

• General-Purpose FSA: Covers a broad range of healthcare expenses, but participants cannot contribute to an HSA while using it.
• Limited-Purpose FSA: Covers only dental and vision expenses, allowing individuals to maintain HSA eligibility.
• HSA: A savings account that allows contributions to roll over indefinitely, can be used for a wide range of medical expenses, and offers long-term tax advantages.

An LPFSA serves as a complementary account to an HSA rather than a replacement.

Considerations Before Enrolling

Before enrolling in an LPFSA, individuals should evaluate their expected dental and vision expenses to determine if contributing is worthwhile. Unlike an HSA, where unused funds roll over indefinitely, an LPFSA has more restrictive rules regarding unused funds. If an individual does not anticipate significant dental or vision expenses, it may be more practical to pay for those costs out of pocket and save money in an HSA instead.

Additionally, employees should review their employer’s specific LPFSA policies, including whether their plan allows a grace period or carryover. If the plan follows a strict use-it-or-lose-it rule, participants should plan contributions carefully to avoid forfeiting funds.

The Bottom Line

A Limited-Purpose FSA is a tax-advantaged account designed to cover dental and vision expenses while allowing individuals to remain eligible for an HSA. It provides a valuable way to save on taxes and manage healthcare costs but comes with restrictions, including contribution limits and potential forfeiture of unused funds. For those who already contribute to an HSA and expect to incur dental or vision expenses, an LPFSA can be a useful tool in an overall tax-efficient healthcare strategy.