Federal Open Enrollment: Don't Miss These Dates
The federal benefits open enrollment window for the 2026 plan year runs from November 10 through December 8, 2025, and most elections take effect on January 1, 2026 or the first applicable pay period after that date, depending on the program and payroll system.
Timeline
The core open season dates are set each year by the Office of Personnel Management and cover FEHB, FEDVIP, FSAFEDS, and, for eligible postal employees, USPS-related health coverage options. For the 2026 plan year, federal employees could enroll, change, or cancel coverage during the November 10 to December 8, 2025 window.
| Milestone | Date | What it means |
|---|---|---|
| Open Season begins | November 10, 2025 | Employees can enroll, change, or cancel eligible benefit elections. |
| Open Season ends | December 8, 2025 | Final day to submit most benefit changes for the 2026 plan year. |
| Coverage effective | January 1, 2026 | Most changes start with the new plan year, subject to program-specific payroll timing. |
That timing matters because many employees wait too long and then discover they must keep the same plan for another year unless they later experience a qualifying life event. In practical terms, the benefits deadline is a hard annual cutoff for routine changes, so the safest approach is to review plan options before the final week.
What changes are allowed
During the annual window, eligible workers can enroll in FEHB, switch from one health plan to another, change coverage types, cancel coverage, and make selections for FEDVIP or FSAFEDS if they qualify. The Federal Employees Health Benefits program has long used this once-a-year structure to keep elections orderly and to align coverage administration across agencies.
- FEHB: Enroll, change plans, change coverage level, or cancel enrollment.
- FEDVIP: Adjust dental and vision elections during the same season.
- FSAFEDS: Set or revise flexible spending account elections for eligible active employees.
- Postal coverage: Eligible postal employees may have parallel USPS-specific options during the same period.
Why the window matters
The annual open enrollment period is important because federal employees generally cannot make routine benefit changes outside this window unless they have a qualifying life event, such as marriage, divorce, or loss of other coverage. The Government Publishing Office notes that new employees may have a separate 60-day initial enrollment right, but after that, the next standard opportunity is open season or a qualifying life event.
"Open Season is November 10 - December 8, 2025," according to NARFE's summary of the 2026 federal benefits release.
That quote reflects the same schedule published by OPM and agency benefit offices, which is why the period gets so much attention every fall. For workers balancing family changes, premium increases, and plan redesigns, the November deadline is often the most consequential date in the federal benefits calendar.
How to prepare
Preparation is more effective than rushing through plan comparisons in the last 24 hours, especially when different carriers update premiums, deductibles, networks, and out-of-pocket limits each year. A simple review of current utilization, expected prescriptions, and provider networks can prevent costly mismatches between coverage and actual needs.
- Review your current plan costs, including premiums and deductible exposure.
- Check whether your doctors, hospitals, and pharmacies remain in network.
- Compare FEHB, FEDVIP, and FSAFEDS options side by side.
- Confirm submission rules for your agency or payroll system before the deadline.
- Submit changes early enough to avoid login, processing, or transmission problems.
Common mistakes
One of the biggest errors is assuming a selected plan will automatically renew in the same form every year without checking whether the premium or benefits changed. Another common mistake is waiting until the final day, when administrative systems, password resets, or local agency procedures can create delays that cost you the opportunity to change coverage.
Employees should also pay attention to effective dates, because coverage changes do not always begin on the exact day the form is submitted and may depend on the first pay period after January 1 or a comparable payroll cycle. For some workers, especially those near retirement or those using agency-specific systems, the filing instructions can be more specific than the general open season guidance.
Who is eligible
FEHB is available to eligible permanent full-time and part-time federal employees, and certain temporary intermittent or seasonal employees who meet the working-schedule requirements described by the Government Publishing Office. Open season also includes retirees and certain other eligible groups, which is part of why the federal open season receives broad attention each year.
Eligibility can differ by program, so an employee who can change FEHB may not automatically qualify for every FSAFEDS election or every specific dental or vision option. That is why federal benefits offices emphasize reading the plan year guidance instead of assuming one enrollment rule fits every program.
FAQ
Bottom line
The federal employee benefits open enrollment timeline is simple but unforgiving: review your options before November 10, submit any changes no later than December 8, and expect most new coverage to begin on January 1, 2026. For federal workers, the smartest move is to treat the annual window as the only routine chance to reset coverage, because once it closes, the next opportunity may not come until the following year.
Everything you need to know about Federal Employee Benefits Open Enrollment Timeline
When is the federal employee benefits open enrollment period?
For the 2026 plan year, the federal benefits open season ran from November 10 through December 8, 2025, with most changes effective January 1, 2026.
Can I change my federal health plan after open season?
Usually no, unless you experience a qualifying life event such as marriage, divorce, or loss of other coverage.
Does open season apply to dental and vision coverage?
Yes, FEDVIP elections are part of the same annual open season window, along with FEHB and FSAFEDS for eligible participants.
When do the new benefits take effect?
Most elections begin on January 1 of the new plan year, although some programs and payroll systems use the first applicable pay period after that date.
What happens if I miss the deadline?
If you miss the open season deadline, you typically keep your existing coverage into the next plan year unless you later qualify for a special enrollment opportunity.