Short answer: Under the Uniform Coverage Rule, the full annual election for a healthcare FSA must be available at the start of the plan year, even though contributions are made through payroll deductions over time.
The Uniform Coverage Rule is a requirement that applies to healthcare Flexible Spending Accounts (FSAs). When an employee elects an annual healthcare FSA contribution amount, the entire elected amount must be available for reimbursement on the first day of the plan year.
This means an employee who elects a healthcare FSA may use the full annual amount immediately, even though the employee repays that amount gradually through payroll deductions during the year. This feature can be helpful for employees who incur significant medical expenses early in the plan year.
From an administrative standpoint, the rule requires employers to make the full elected amount available regardless of how much the employee has contributed to date. If an employee uses more than they have contributed and then terminates employment before the end of the year, the employer generally cannot recover the unpaid balance. This exposure is an inherent feature of healthcare FSAs.
The Uniform Coverage Rule applies only to healthcare FSAs. Dependent care FSAs operate differently and reimburse expenses only up to the amount actually contributed and available in the account at the time the expense is incurred.
The Uniform Coverage Rule is established under federal tax rules administered by the Internal Revenue Service and applies to healthcare FSAs offered through Section 125 cafeteria plans.
Sources
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Internal Revenue Service, Publication 969, Health Savings Accounts and Other Tax-Favored Health Plans
https://www.irs.gov/publications/p969 -
Internal Revenue Code, Section 125
Content history
Originally published: March 25, 2025
Last reviewed: January 25, 2026